MD5

From Rosetta Code
Task
MD5
You are encouraged to solve this task according to the task description, using any language you may know.
Task

Encode a string using an MD5 algorithm.   The algorithm can be found on   Wikipedia.


Optionally, validate your implementation by running all of the test values in   IETF RFC (1321)   for MD5.

Additionally,   RFC 1321   provides more precise information on the algorithm than the Wikipedia article.

Warning:   MD5 has known weaknesses, including collisions and forged signatures.   Users may consider a stronger alternative when doing production-grade cryptography, such as SHA-256 (from the SHA-2 family), or the upcoming SHA-3.

If the solution on this page is a library solution, see   MD5/Implementation   for an implementation from scratch.

8th

 
"md5" cr:hash! "Some text" cr:hash cr:hash>s
. cr bye
 
Output:

9db5682a4d778ca2cb79580bdb67083f

Ada

Works with: GNAT
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.MD5;
 
procedure MD5_Digest is
begin
Put(GNAT.MD5.Digest("Foo bar baz"));
end MD5_Digest;

ALGOL 68

 
 
# Based on wikipedia article pseudocode #
 
# s specifies the per-round shift amounts #
[]INT s = (7,12,17,22, 7,12,17,22, 7,12,17,22, 7,12,17,22,
5, 9,14,20, 5, 9,14,20, 5, 9,14,20, 5, 9,14,20,
4,11,16,23, 4,11,16,23, 4,11,16,23, 4,11,16,23,
6,10,15,21, 6,10,15,21, 6,10,15,21, 6,10,15,21);
 
[]BITS k = (16rd76aa478, 16re8c7b756, 16r242070db, 16rc1bdceee,
16rf57c0faf, 16r4787c62a, 16ra8304613, 16rfd469501,
16r698098d8, 16r8b44f7af, 16rffff5bb1, 16r895cd7be,
16r6b901122, 16rfd987193, 16ra679438e, 16r49b40821,
16rf61e2562, 16rc040b340, 16r265e5a51, 16re9b6c7aa,
16rd62f105d, 16r02441453, 16rd8a1e681, 16re7d3fbc8,
16r21e1cde6, 16rc33707d6, 16rf4d50d87, 16r455a14ed,
16ra9e3e905, 16rfcefa3f8, 16r676f02d9, 16r8d2a4c8a,
16rfffa3942, 16r8771f681, 16r6d9d6122, 16rfde5380c,
16ra4beea44, 16r4bdecfa9, 16rf6bb4b60, 16rbebfbc70,
16r289b7ec6, 16reaa127fa, 16rd4ef3085, 16r04881d05,
16rd9d4d039, 16re6db99e5, 16r1fa27cf8, 16rc4ac5665,
16rf4292244, 16r432aff97, 16rab9423a7, 16rfc93a039,
16r655b59c3, 16r8f0ccc92, 16rffeff47d, 16r85845dd1,
16r6fa87e4f, 16rfe2ce6e0, 16ra3014314, 16r4e0811a1,
16rf7537e82, 16rbd3af235, 16r2ad7d2bb, 16reb86d391);
 
OP + = (BITS a, b) BITS:
BEGIN
BITS c = BIN (ABS (a AND 16rffff) + ABS (b AND 16rffff));
BITS d = BIN (ABS (a SHR 16) + ABS (b SHR 16) + ABS (c SHR 16));
(c AND 16rffff) OR (d SHL 16)
END;
 
#[0:63]LONG INT k;
FOR i FROM 0 TO 63 DO
k[i] := ENTIER (ABS (sin(i+1)) * LONG INT(2)**32)
OD;#

 
PROC md5 = (STRING intext) STRING:
BEGIN
# Initialize variables: #
BITS a0 := 16r67452301,
a1 := 16refcdab89,
a2 := 16r98badcfe,
a3 := 16r10325476;
 
STRING text := intext;
 
# Pre-processing: adding a single 1 bit #
text +:= REPR 128;
 
# Pre-processing: padding with zeros
append "0" bit until message length in bits ≡ 448 (mod 512) #

WHILE ELEMS text MOD 64 56 DO
text +:= REPR 0
OD;
 
# append original length in bits mod (2 pow 64) to message #
text +:= dec2asc (ELEMS intext * 8);
 
# MD5 rounds #
# Process the message in successive 512-bit chunks: #
WHILE text "" DO
# for each 512-bit (64 byte) chunk of message #
[]CHAR chunk = text[1:64]; text := text[65:];
# break chunk into sixteen 32-bit words M[j], 0 <= j <= 15 #
[0:15]BITS m;
FOR j FROM 0 TO 15 DO
m[j] := BIN (ABS chunk[j*4+1]) OR
BIN (ABS chunk[j*4+2]) SHL 8 OR
BIN (ABS chunk[j*4+3]) SHL 16 OR
BIN (ABS chunk[j*4+4]) SHL 24
OD;
INT g;
BITS a, b, c, d, f, dtemp;
 
# Initialize hash value for this chunk #
a := a0;
b := a1;
c := a2;
d := a3;
FOR i FROM 0 TO 63 DO
IF 0 <= i AND i <= 15 THEN
f := (b AND c) OR ((NOT b) AND d);
g := i
ELIF 16 <= i AND i <= 31 THEN
f := (d AND b) OR ((NOT d) AND c);
g := (5×i + 1) MOD 16
ELIF 32 <= i AND i <= 47 THEN
f := b XOR c XOR d;
g := (3×i + 5) MOD 16
ELIF 48 <= i AND i <= 63 THEN
f := c XOR (b OR (NOT d));
g := (7×i) MOD 16
FI;
dtemp := d;
d := c;
c := b;
b := b + leftrotate ((a + f + k[1+i] + m[g]), s[1+i]);
a := dtemp
OD;
# Add this chunk's hash to result so far #
a0 := a0 + a;
a1 := a1 + b;
a2 := a2 + c;
a3 := a3 + d
OD;
revhex (a0) + revhex (a1) + revhex (a2) + revhex (a3)
END;
 
PROC leftrotate = (BITS x, INT c) BITS:
(x SHL c) OR (x SHR (32-c));
 
# dec2asc: dec to 8 byte asc #
PROC dec2asc = (INT nn)STRING:
BEGIN
STRING h := ""; INT n := nn;
FOR i TO 8 DO
h +:= REPR (n MOD 256);
n ÷:= 256
OD;
h
END;
 
PROC revhex = (BITS x) STRING :
BEGIN # Convert to lowercase hexadecimal STRING #
PROC hexdig = (BITS x) CHAR: (REPR (ABS(x) <= 9 | ABS(x) + ABS("0") | ABS(x) - 10 + ABS("a")));
hexdig (x SHR 4 AND 16rf) +
hexdig (x AND 16rf) +
hexdig (x SHR 12 AND 16rf) +
hexdig (x SHR 8 AND 16rf) +
hexdig (x SHR 20 AND 16rf) +
hexdig (x SHR 16 AND 16rf) +
hexdig (x SHR 28 AND 16rf) +
hexdig (x SHR 24 AND 16rf)
END;
 
STRING testmsg = "The quick brown fox jumps over the lazy dog";
STRING checksum = "9e107d9d372bb6826bd81d3542a419d6";
 
print ((testmsg, new line));
print ((checksum, new line));
 
STRING test = md5 (testmsg);
 
IF test = checksum THEN
print (("passed", new line));
print ((test, new line))
ELSE
print (("failed"))
FI
 

AutoHotkey

Search autohotkey.com: [1]

Regular version

Source: AutoHotkey forum by SKAN

data := "abc"
MsgBox % MD5(data,StrLen(data)) ; 900150983cd24fb0d6963f7d28e17f72
 
MD5( ByRef V, L=0 ) {
VarSetCapacity( MD5_CTX,104,0 ), DllCall( "advapi32\MD5Init", Str,MD5_CTX )
DllCall( "advapi32\MD5Update", Str,MD5_CTX, Str,V, UInt,L ? L : VarSetCapacity(V) )
DllCall( "advapi32\MD5Final", Str,MD5_CTX )
Loop % StrLen( Hex:="123456789ABCDEF0" )
N := NumGet( MD5_CTX,87+A_Index,"Char"), MD5 .= SubStr(Hex,N>>4,1) . SubStr(Hex,N&15,1)
Return MD5
}
 

Native implementation

Source: AutoHotkey forum by Laszlo

; GLOBAL CONSTANTS r[64], k[64] 
r = 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22
, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20
, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23
, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21
StringSplit r, r, `,
r0 := 7
Loop 64
i := A_Index-1, k%i% := floor(abs(sin(A_Index)) * 2**32)
 
; TEST CASES
MsgBox % MD5(x:="", 0) ; d41d8cd98f00b204e9800998ecf8427e
MsgBox % MD5(x:="a", StrLen(x)) ; 0cc175b9c0f1b6a831c399e269772661
MsgBox % MD5(x:="abc", StrLen(x)) ; 900150983cd24fb0d6963f7d28e17f72
MsgBox % MD5(x:="message digest", StrLen(x)) ; f96b697d7cb7938d525a2f31aaf161d0
MsgBox % MD5(x:="abcdefghijklmnopqrstuvwxyz", StrLen(x))
; c3fcd3d76192e4007dfb496cca67e13b
MsgBox % MD5(x:="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", StrLen(x))
; d174ab98d277d9f5a5611c2c9f419d9f
MsgBox % MD5(x:="12345678901234567890123456789012345678901234567890123456789012345678901234567890", StrLen(x))
; 57edf4a22be3c955ac49da2e2107b67a
MsgBox % MD5(x:="The quick brown fox jumps over the lazy dog", StrLen(x))
; 9e107d9d372bb6826bd81d3542a419d6
MsgBox % MD5(x:="The quick brown fox jumps over the lazy cog", StrLen(x))
; 1055d3e698d289f2af8663725127bd4b
 
MD5(ByRef Buf, L) { ; Binary buffer, Length in bytes
Static P, Q, N, i, a,b,c,d, t, h0,h1,h2,h3, y = 0xFFFFFFFF
 
h0 := 0x67452301, h1 := 0xEFCDAB89, h2 := 0x98BADCFE, h3 := 0x10325476
 
N := ceil((L+9)/64)*64 ; padded length (100..separator, 8B length)
VarSetCapacity(Q,N,0) ; room for padded data
P := &Q ; pointer
DllCall("RtlMoveMemory", UInt,P, UInt,&Buf, UInt,L) ; copy data
DllCall("RtlFillMemory", UInt,P+L, UInt,1, UInt,0x80) ; pad separator
DllCall("ntdll.dll\RtlFillMemoryUlong",UInt,P+N-8,UInt,4,UInt,8*L) ; at end: length in bits < 512 MB
 
Loop % N//64 {
Loop 16
i := A_Index-1, w%i% := *P | *(P+1)<<8 | *(P+2)<<16 | *(P+3)<<24, P += 4
 
a := h0, b := h1, c := h2, d := h3
 
Loop 64 {
i := A_Index-1
If i < 16
f := (b & c) | (~b & d), g := i
Else If i < 32
f := (d & b) | (~d & c), g := 5*i+1 & 15
Else If i < 48
f := b ^ c ^ d, g := 3*i+5 & 15
Else
f := c ^ (b | ~d), g := 7*i & 15
 
t := d, d := c, c := b
b += rotate(a + f + k%i% + w%g%, r%i%) ; reduced to 32 bits later
a := t
}
 
h0 := h0+a & y, h1 := h1+b & y, h2 := h2+c & y, h3 := h3+d & y
}
Return hex(h0) . hex(h1) . hex(h2) . hex(h3)
}
 
rotate(a,b) { ; 32-bit rotate a to left by b bits, bit32..63 garbage
Return a << b | (a & 0xFFFFFFFF) >> (32-b)
}
 
hex(x) { ; 32-bit little endian hex digits
SetFormat Integer, HEX
x += 0x100000000, x := SubStr(x,-1) . SubStr(x,8,2) . SubStr(x,6,2) . SubStr(x,4,2)
SetFormat Integer, DECIMAL
Return x
}

BBC BASIC

See MD5/Implementation for a native version.

      PRINT FN_MD5("")
PRINT FN_MD5("a")
PRINT FN_MD5("abc")
PRINT FN_MD5("message digest")
PRINT FN_MD5("abcdefghijklmnopqrstuvwxyz")
PRINT FN_MD5("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
PRINT FN_MD5(STRING$(8,"1234567890"))
END
 
DEF FN_MD5(message$)
LOCAL I%, MD5$, MD5_CTX{}
DIM MD5_CTX{i%(1), buf%(3), in&(63), digest&(15)}
SYS "MD5Init", MD5_CTX{}
SYS "MD5Update", MD5_CTX{}, message$, LEN(message$)
SYS "MD5Final", MD5_CTX{}
FOR I% = 0 TO 15
MD5$ += RIGHT$("0"+STR$~(MD5_CTX.digest&(I%)),2)
NEXT
= MD5$

C

Library: OpenSSL
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/md5.h>
 
const char *string = "The quick brown fox jumped over the lazy dog's back";
 
int main()
{
int i;
unsigned char result[MD5_DIGEST_LENGTH];
 
MD5(string, strlen(string), result);
 
// output
for(i = 0; i < MD5_DIGEST_LENGTH; i++)
printf("%02x", result[i]);
printf("\n");
 
return EXIT_SUCCESS;
}

Implementation of md5 (Needs review - differences observed for the last 8 characters when compared with openssl implementation)

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
 
typedef union uwb {
unsigned w;
unsigned char b[4];
} WBunion;
 
typedef unsigned Digest[4];
 
unsigned f0( unsigned abcd[] ){
return ( abcd[1] & abcd[2]) | (~abcd[1] & abcd[3]);}
 
unsigned f1( unsigned abcd[] ){
return ( abcd[3] & abcd[1]) | (~abcd[3] & abcd[2]);}
 
unsigned f2( unsigned abcd[] ){
return abcd[1] ^ abcd[2] ^ abcd[3];}
 
unsigned f3( unsigned abcd[] ){
return abcd[2] ^ (abcd[1] |~ abcd[3]);}
 
typedef unsigned (*DgstFctn)(unsigned a[]);
 
unsigned *calcKs( unsigned *k)
{
double s, pwr;
int i;
 
pwr = pow( 2, 32);
for (i=0; i<64; i++) {
s = fabs(sin(1+i));
k[i] = (unsigned)( s * pwr );
}
return k;
}
 
// ROtate v Left by amt bits
unsigned rol( unsigned v, short amt )
{
unsigned msk1 = (1<<amt) -1;
return ((v>>(32-amt)) & msk1) | ((v<<amt) & ~msk1);
}
 
unsigned *md5( const char *msg, int mlen)
{
static Digest h0 = { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476 };
// static Digest h0 = { 0x01234567, 0x89ABCDEF, 0xFEDCBA98, 0x76543210 };
static DgstFctn ff[] = { &f0, &f1, &f2, &f3 };
static short M[] = { 1, 5, 3, 7 };
static short O[] = { 0, 1, 5, 0 };
static short rot0[] = { 7,12,17,22};
static short rot1[] = { 5, 9,14,20};
static short rot2[] = { 4,11,16,23};
static short rot3[] = { 6,10,15,21};
static short *rots[] = {rot0, rot1, rot2, rot3 };
static unsigned kspace[64];
static unsigned *k;
 
static Digest h;
Digest abcd;
DgstFctn fctn;
short m, o, g;
unsigned f;
short *rotn;
union {
unsigned w[16];
char b[64];
}mm;
int os = 0;
int grp, grps, q, p;
unsigned char *msg2;
 
if (k==NULL) k= calcKs(kspace);
 
for (q=0; q<4; q++) h[q] = h0[q]; // initialize
 
{
grps = 1 + (mlen+8)/64;
msg2 = malloc( 64*grps);
memcpy( msg2, msg, mlen);
msg2[mlen] = (unsigned char)0x80;
q = mlen + 1;
while (q < 64*grps){ msg2[q] = 0; q++ ; }
{
// unsigned char t;
WBunion u;
u.w = 8*mlen;
// t = u.b[0]; u.b[0] = u.b[3]; u.b[3] = t;
// t = u.b[1]; u.b[1] = u.b[2]; u.b[2] = t;
q -= 8;
memcpy(msg2+q, &u.w, 4 );
}
}
 
for (grp=0; grp<grps; grp++)
{
memcpy( mm.b, msg2+os, 64);
for(q=0;q<4;q++) abcd[q] = h[q];
for (p = 0; p<4; p++) {
fctn = ff[p];
rotn = rots[p];
m = M[p]; o= O[p];
for (q=0; q<16; q++) {
g = (m*q + o) % 16;
f = abcd[1] + rol( abcd[0]+ fctn(abcd) + k[q+16*p] + mm.w[g], rotn[q%4]);
 
abcd[0] = abcd[3];
abcd[3] = abcd[2];
abcd[2] = abcd[1];
abcd[1] = f;
}
}
for (p=0; p<4; p++)
h[p] += abcd[p];
os += 64;
}
 
if( msg2 )
free( msg2 );
 
return h;
}
 
int main( int argc, char *argv[] )
{
int j,k;
const char *msg = "The quick brown fox jumps over the lazy dog.";
unsigned *d = md5(msg, strlen(msg));
WBunion u;
 
printf("= 0x");
for (j=0;j<4; j++){
u.w = d[j];
for (k=0;k<4;k++) printf("%02x",u.b[k]);
}
printf("\n");
 
return 0;
}

C++

Library: Poco Crypto
#include <string>
#include <iostream>
#include "Poco/MD5Engine.h"
#include "Poco/DigestStream.h"
 
using Poco::DigestEngine ;
using Poco::MD5Engine ;
using Poco::DigestOutputStream ;
 
int main( ) {
std::string myphrase ( "The quick brown fox jumped over the lazy dog's back" ) ;
MD5Engine md5 ;
DigestOutputStream outstr( md5 ) ;
outstr << myphrase ;
outstr.flush( ) ; //to pass everything to the digest engine
const DigestEngine::Digest& digest = md5.digest( ) ;
std::cout << myphrase << " as a MD5 digest :\n" << DigestEngine::digestToHex( digest )
<< " !" << std::endl ;
return 0 ;
}
Output:
The quick brown fox jumped over the lazy dog's back as a MD5 digest :
e38ca1d920c4b8b8d3946b2c72f01680 !

C#

using System.Text;
using System.Security.Cryptography;
 
byte[] data = Encoding.ASCII.GetBytes("The quick brown fox jumped over the lazy dog's back");
byte[] hash = MD5.Create().ComputeHash(data);
Console.WriteLine(BitConverter.ToString(hash).Replace("-", "").ToLower());

Caché ObjectScript

USER>set hash=$System.Encryption.MD5Hash("The quick brown fox jumped over the lazy dog's back")
USER>zzdump hash
0000: E3 8C A1 D9 20 C4 B8 B8 D3 94 6B 2C 72 F0 16 80

Clojure

(apply str
(map (partial format "%02x")
(.digest (doto (java.security.MessageDigest/getInstance "MD5")
.reset
(.update (.getBytes "The quick brown fox jumps over the lazy dog"))))))

Common Lisp

Library: Ironclad
(ql:quickload 'ironclad)
(defun md5 (str)
(ironclad:byte-array-to-hex-string
(ironclad:digest-sequence :md5
(ironclad:ascii-string-to-byte-array str))))
(defvar *tests* '(""
"a"
"abc"
"message digest"
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
"12345678901234567890123456789012345678901234567890123456789012345678901234567890"))
(dolist (msg *tests*)
(format T "~s: ~a~%" msg (md5 msg)))
 
Output:
"": d41d8cd98f00b204e9800998ecf8427e
"a": 0cc175b9c0f1b6a831c399e269772661
"abc": 900150983cd24fb0d6963f7d28e17f72
"message digest": f96b697d7cb7938d525a2f31aaf161d0
"abcdefghijklmnopqrstuvwxyz": c3fcd3d76192e4007dfb496cca67e13b
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789": d174ab98d277d9f5a5611c2c9f419d9f
"12345678901234567890123456789012345678901234567890123456789012345678901234567890": 57edf4a22be3c955ac49da2e2107b67a
Another method using openssl:
Library: CFFI
(cffi:load-foreign-library "libcrypto.so")
 
(cffi:defcfun ("MD5" MD5) :void (string :string) (len :int) (ptr :pointer))
 
(let ((string-to-convert "The quick brown fox jumped over the lazy dog's back")
(ptr (cffi:foreign-alloc :unsigned-char :count 16)))
(md5 string-to-convert (length string-to-convert) ptr)
(loop for i from 0 below 16 do
(format t "~a" (write-to-string (cffi:mem-ref ptr :unsigned-char i) :base 16)))
(cffi:foreign-free ptr))
Output:
E38CA1D920C4B8B8D3946B2C72F01680

D

void main() {
import std.stdio, std.digest.md;
 
auto txt = "The quick brown fox jumped over the lazy dog's back";
writefln("%-(%02x%)", txt.md5Of);
}
Output:
e38ca1d920c4b8b8d3946b2c72f01680

Alternative version:

Library: Tango
import tango.io.digest.Md5, tango.io.Stdout;
 
void main(char[][] args) {
auto md5 = new Md5();
for(int i = 1; i < args.length; i++) {
md5.update(args[i]);
Stdout.formatln("[{}]=>\n[{}]", args[i], md5.hexDigest());
}
}

Output:

>md5test "The quick brown fox jumped over the lazy dog's back"
[The quick brown fox jumped over the lazy dog's back]=>
[e38ca1d920c4b8b8d3946b2c72f01680]

Delphi

If you require a native implementation, look inside the class TIdHashMessageDigest5. This class is placed in the unit IdHashMessageDigest.pas.

program MD5Hash;
 
{$APPTYPE CONSOLE}
 
uses
SysUtils,
IdHashMessageDigest;
 
function MD5(aValue: string): string;
begin
with TIdHashMessageDigest5.Create do
begin
Result:= HashStringAsHex(aValue);
Free;
end;
end;
 
begin
Writeln(MD5(''));
Writeln(MD5('a'));
Writeln(MD5('abc'));
Writeln(MD5('message digest'));
Writeln(MD5('abcdefghijklmnopqrstuvwxyz'));
Writeln(MD5('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'));
Writeln(MD5('12345678901234567890123456789012345678901234567890123456789012345678901234567890'));
Readln;
end.

Output:

D41D8CD98F00B204E9800998ECF8427E
0CC175B9C0F1B6A831C399E269772661
900150983CD24FB0D6963F7D28E17F72
F96B697D7CB7938D525A2F31AAF161D0
C3FCD3D76192E4007DFB496CCA67E13B
D174AB98D277D9F5A5611C2C9F419D9F
57EDF4A22BE3C955AC49DA2E2107B67A

E

Works with: E-on-Java
Translation of: Java
(with modifications)
def makeMessageDigest := <import:java.security.makeMessageDigest>
def sprintf := <import:java.lang.makeString>.format
 
def digest := makeMessageDigest.getInstance("MD5") \
.digest("The quick brown fox jumped over the lazy dog's back".getBytes("iso-8859-1"))
 
for b in digest {
print(sprintf("%02x", [b]))
}
println()

Emacs Lisp

Emacs 23 and up includes md5 giving the MD5 hash as a hexadecimal string. (See GNU Elisp manual on Checksum/Hash).

(md5 "The quick brown fox jumped over the lazy dog's back")
=>
"e38ca1d920c4b8b8d3946b2c72f01680"

This began in FLIM and FLIM has an md5.el which creates an md5 func if it doesn't already exist.

hmac-md5.el also from FLIM and also included in recent Emacs has an md5-binary giving the checksum as 16 binary bytes. encode-hex-string from hex-util.el can convert that to hex the same as the md5 func gives.

(require 'hmac-md5)
(require 'hex-util)
(encode-hex-string
(md5-binary "The quick brown fox jumped over the lazy dog's back"))
=>
"e38ca1d920c4b8b8d3946b2c72f01680"

Erlang

By default, Erlang's crypto functions like md5 return a binary value rather than a hex string. We have two write our own function to translate it:

-module(tests).
-export([md5/1]).
 
md5(S) ->
string:to_upper(
lists:flatten([io_lib:format("~2.16.0b",[N]) || <<N>> <= erlang:md5(S)])
).

Testing it:

1> c(tests).
{ok,tests}
2> tests:md5("The quick brown fox jumped over the lazy dog's back").
"E38CA1D920C4B8B8D3946B2C72F01680"

F#

Using built-in System.Security.Cryptography.MD5 class (Link to original blog [2]).

let md5ootb (msg: string) =
use md5 = System.Security.Cryptography.MD5.Create()
msg
|> System.Text.Encoding.ASCII.GetBytes
|> md5.ComputeHash
|> Seq.map (fun c -> c.ToString("X2"))
|> Seq.reduce ( + )
 
md5ootb @"The quick brown fox jumped over the lazy dog's back"

Factor

Using builtin library:

USING: kernel strings io checksums checksums.md5 ;
"The quick brown fox jumps over the lazy dog"
md5 checksum-bytes hex-string print

Forth

include ffl/md5.fs
 
\ Create a MD5 variable md1 in the dictionary
 
md5-create md1
 
\ Update the variable with data
 
s" The quick brown fox jumps over the lazy dog" md1 md5-update
 
\ Finish the MD5 calculation resulting in four unsigned 32 bit words
\ on the stack representing the hash value
 
md1 md5-finish
 
\ Convert the hash value to a hex string and print it
 
md5+to-string type cr

Fortran

Intel Fortran on Windows

Using Windows API. See CryptAcquireContext, CryptCreateHash, CryptHashData and CryptGetHashParam on MSDN.

module md5_m
use kernel32
use advapi32
implicit none
integer, parameter :: MD5LEN = 16
contains
subroutine md5hash(name, hash, dwStatus, filesize)
implicit none
character(*) :: name
integer, parameter :: BUFLEN = 32768
integer(HANDLE) :: hFile, hProv, hHash
integer(DWORD) :: dwStatus, nRead
integer(BOOL) :: status
integer(BYTE) :: buffer(BUFLEN)
integer(BYTE) :: hash(MD5LEN)
integer(UINT64) :: filesize
 
dwStatus = 0
filesize = 0
hFile = CreateFile(trim(name) // char(0), GENERIC_READ, FILE_SHARE_READ, NULL, &
OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL)
 
if (hFile == INVALID_HANDLE_VALUE) then
dwStatus = GetLastError()
print *, "CreateFile failed."
return
end if
 
if (CryptAcquireContext(hProv, NULL, NULL, PROV_RSA_FULL, &
CRYPT_VERIFYCONTEXT) == FALSE) then
dwStatus = GetLastError()
print *, "CryptAcquireContext failed."
goto 3
end if
 
if (CryptCreateHash(hProv, CALG_MD5, 0_ULONG_PTR, 0_DWORD, hHash) == FALSE) then
dwStatus = GetLastError()
print *, "CryptCreateHash failed."
go to 2
end if
 
do
status = ReadFile(hFile, loc(buffer), BUFLEN, loc(nRead), NULL)
if (status == FALSE .or. nRead == 0) exit
filesize = filesize + nRead
if (CryptHashData(hHash, buffer, nRead, 0) == FALSE) then
dwStatus = GetLastError()
print *, "CryptHashData failed."
go to 1
end if
end do
 
if (status == FALSE) then
dwStatus = GetLastError()
print *, "ReadFile failed."
go to 1
end if
 
nRead = MD5LEN
if (CryptGetHashParam(hHash, HP_HASHVAL, hash, nRead, 0) == FALSE) then
dwStatus = GetLastError()
print *, "CryptGetHashParam failed.", status, nRead, dwStatus
end if
 
1 status = CryptDestroyHash(hHash)
2 status = CryptReleaseContext(hProv, 0)
3 status = CloseHandle(hFile)
end subroutine
end module
 
program md5
use md5_m
implicit none
integer :: n, m, i, j
character(:), allocatable :: name
integer(DWORD) :: dwStatus
integer(BYTE) :: hash(MD5LEN)
integer(UINT64) :: filesize
 
n = command_argument_count()
do i = 1, n
call get_command_argument(i, length=m)
allocate(character(m) :: name)
call get_command_argument(i, name)
call md5hash(name, hash, dwStatus, filesize)
if (dwStatus == 0) then
do j = 1, MD5LEN
write(*, "(Z2.2)", advance="NO") hash(j)
end do
write(*, "(' ',A,' (',G0,' bytes)')") name, filesize
end if
deallocate(name)
end do
end program

FreeBASIC

See MD5/Implementation#FreeBASIC

Frink

The function messageDigest[string, hash] returns a hex-encoded hash of any input string with a variety of hashing functions.

println[messageDigest["The quick brown fox", "MD5"]]

Futhark

Real languages roll their own crypto.

 
type md5 = (u32, u32, u32, u32)
 
fun rs(): [64]u32 =
map u32
([ 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22,
5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20,
4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23,
6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21 ])
 
fun ks(): [64]u32 =
map u32
([ 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee ,
0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501 ,
0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be ,
0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821 ,
0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa ,
0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8 ,
0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed ,
0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a ,
0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c ,
0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70 ,
0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05 ,
0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665 ,
0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039 ,
0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1 ,
0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1 ,
0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391 ])
 
fun md5(ms: [n][16]u32): md5 =
let a0 = u32(0x67452301)
let b0 = u32(0xefcdab89)
let c0 = u32(0x98badcfe)
let d0 = u32(0x10325476)
loop ((a0,b0,c0,d0)) = for i < n do
let (a,b,c,d) = md5_chunk (a0,b0,c0,d0) ms[i]
in (a0+a, b0+b, c0+c, d0+d)
in (a0,b0,c0,d0)
 
fun rotate_left(x: u32, c: u32): u32 = (x << c) | (x >> (32u32 - c))
 
fun bytes(x: u32): [4]u8 = [u8(x),
u8(x/0x100u32),
u8(x/0x10000u32),
u8(x/0x1000000u32)]
 
fun unbytes(bs: [4]u8): u32 =
u32(bs[0]) +
u32(bs[1]) * 0x100u32 +
u32(bs[2]) * 0x10000u32 +
u32(bs[3]) * 0x1000000u32
 
fun unbytes_block(block: [64]u8): [16]u32 =
map unbytes (reshape (16,4) block)
 
fun main(ms: [n]u8): [16]u8 =
let padding = 64 - (n % 64)
let n_padded = n + padding
let ms_padded = concat ms (bytes 0x80u32) (replicate (padding-12) 0x0u8) (bytes (u32(n*8))) ([0u8,0u8,0u8,0u8])
let (a,b,c,d) = md5 (map unbytes_block (reshape (n_padded / 64, 64) ms_padded))
in reshape 16 (map bytes ([a,b,c,d]))
 
-- Process 512 bits of the input.
fun md5_chunk ((a0,b0,c0,d0): md5) (m: [16]u32): md5 =
loop ((a,b,c,d) = (a0,b0,c0,d0)) = for i < 64 do
let (f,g) =
if i < 16 then ((b & c) | ((~b) & d),
i)
else if i < 32 then ((d & b) | ((~d) & c),
i32((5u32*u32(i) + 1u32) % 16u32))
else if i < 48 then (b ^ c ^ d,
i32((3u32*u32(i) + 5u32) % 16u32))
else (c ^ (b | (~d)),
i32((7u32*u32(i))  % 16u32))
in (d, b + rotate_left(a + f + (ks())[i] + m[g], (rs())[i]), b, c)
in (a,b,c,d)
 

Go

package main
 
import (
"crypto/md5"
"fmt"
)
 
func main() {
for _, p := range [][2]string{
// RFC 1321 test cases
{"d41d8cd98f00b204e9800998ecf8427e", ""},
{"0cc175b9c0f1b6a831c399e269772661", "a"},
{"900150983cd24fb0d6963f7d28e17f72", "abc"},
{"f96b697d7cb7938d525a2f31aaf161d0", "message digest"},
{"c3fcd3d76192e4007dfb496cca67e13b", "abcdefghijklmnopqrstuvwxyz"},
{"d174ab98d277d9f5a5611c2c9f419d9f",
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"},
{"57edf4a22be3c955ac49da2e2107b67a", "12345678901234567890" +
"123456789012345678901234567890123456789012345678901234567890"},
// test case popular with other RC solutions
{"e38ca1d920c4b8b8d3946b2c72f01680",
"The quick brown fox jumped over the lazy dog's back"},
} {
validate(p[0], p[1])
}
}
 
var h = md5.New()
 
func validate(check, s string) {
h.Reset()
h.Write([]byte(s))
sum := fmt.Sprintf("%x", h.Sum(nil))
if sum != check {
fmt.Println("MD5 fail")
fmt.Println(" for string,", s)
fmt.Println(" expected: ", check)
fmt.Println(" got: ", sum)
}
}

Groovy

import java.security.MessageDigest
 
String.metaClass.md5Checksum = {
MessageDigest.getInstance('md5').digest(delegate.bytes).collect { String.format("%02x", it) }.join('')
}

Testing

assert 'The quick brown fox jumps over the lazy dog'.md5Checksum() == '9e107d9d372bb6826bd81d3542a419d6'

Haskell

Use modules nano-MD5 and ByteString from HackageDB

import Data.Digest.OpenSSL.MD5 (md5sum)
import Data.ByteString (pack)
import Data.Char (ord)
 
main = do
let message = "The quick brown fox jumped over the lazy dog's back"
digest = (md5sum . pack . map (fromIntegral . ord)) message
putStrLn digest

Use in GHCi:

*Main> main
e38ca1d920c4b8b8d3946b2c72f01680

This version uses the Cryptonite package:

Library: Cryptonite
#!/usr/bin/env runhaskell
 
import Data.ByteString.Char8 (pack)
import System.Environment (getArgs)
import Crypto.Hash
 
main :: IO ()
main = print . md5 . pack . unwords =<< getArgs
where md5 x = hash x :: Digest MD5
Output:
$ ./md5.hs The quick brown fox jumped over the lazy dog\'s back
e38ca1d920c4b8b8d3946b2c72f01680

Io

Io> MD5
==> MD5_0x97663e0:
appendSeq = MD5_appendSeq()
md5 = MD5_md5()
md5String = MD5_md5String()
Io> MD5 clone appendSeq("The quick brown fox jumped over the lazy dog's back") md5String
==> e38ca1d920c4b8b8d3946b2c72f01680

Icon and Unicon

The following program demonstrates the MD5 using a native Icon/Unicon implementation (see MD5/Implementation) and checks the results against reference values. Alternate implementations using call outs to md5sum on Linux or fciv on windows are possible but were not coded.

procedure main()  # validate against the RFC test strings and more
testMD5("The quick brown fox jumps over the lazy dog", 16r9e107d9d372bb6826bd81d3542a419d6)
testMD5("The quick brown fox jumps over the lazy dog.", 16re4d909c290d0fb1ca068ffaddf22cbd0)
testMD5("", 16rd41d8cd98f00b204e9800998ecf8427e)
end
 
procedure testMD5(s,rh) # compute the MD5 hash and compare it to reference value
write("Message(length=",*s,") = ",image(s))
write("Digest = ",hexstring(h := MD5(s)),if h = rh then " matches reference hash" else (" does not match reference hash = " || hexstring(rh)),"\n")
end
Sample Output:
Message(length=43) = "The quick brown fox jumps over the lazy dog"
Digest = 9E107D9D372BB6826BD81D3542A419D6 matches reference hash

Message(length=44) = "The quick brown fox jumps over the lazy dog."
Digest = E4D909C290D0FB1CA068FFADDF22CBD0 matches reference hash

Message(length=0) = ""
Digest = D41D8CD98F00B204E9800998ECF8427E matches reference hash

J

Using the md5 script from the convert/misc addon package:

   require 'convert/misc/md5'
md5 'The quick brown fox jumped over the lazy dog''s back'
e38ca1d920c4b8b8d3946b2c72f01680

An alternative and faster approach is to use the Qt library function available using the ide/qt addon from J8:

   require '~addons/ide/qt/qt.ijs'
getmd5=: 'md5'&gethash_jqtide_
getmd5 'The quick brown fox jumped over the lazy dog''s back'
e38ca1d920c4b8b8d3946b2c72f01680

Java

Modified from mindprod's Java Glossary:

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
 
/**
* Test MD5 digest computation
*
* @author Roedy Green
* @version 1.0
* @since 2004-06-07
*/

public final class MD5{
public static void main(String[] args) throws UnsupportedEncodingException,
NoSuchAlgorithmException{
byte[] theTextToDigestAsBytes=
"The quick brown fox jumped over the lazy dog's back"
.getBytes("8859_1");
MessageDigest md= MessageDigest.getInstance("MD5");
md.update(theTextToDigestAsBytes);
byte[] digest= md.digest();
 
// dump out the hash
for(byte b: digest){
System.out.printf("%02X", b & 0xff);
}
System.out.println();
}
}

Other options for digest algorithms (to replace "MD5" in the example above) include: MD2, SHA-1, SHA-256, SHA-384, and SHA-512. Other encoding options (to replace "8859_1" in the example above) include: UTF-8, UTF-16, and ASCII.

Julia

 
using Nettle
 
function md5sum(s::String)
bytes2hex(md5_hash(s))
end
 
function Base.trunc(s::String, n::Integer)
0 < n || throw(DomainError())
len = length(s)
len > n || return s
3 < n || return s[1:n]
return s[1:n-3]*"..."
end
 
tests = ["" => "d41d8cd98f00b204e9800998ecf8427e",
"a" => "0cc175b9c0f1b6a831c399e269772661",
"abc" => "900150983cd24fb0d6963f7d28e17f72",
"message digest" => "f96b697d7cb7938d525a2f31aaf161d0",
"abcdefghijklmnopqrstuvwxyz" => "c3fcd3d76192e4007dfb496cca67e13b",
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" =>
"d174ab98d277d9f5a5611c2c9f419d9f",
"12345678901234567890123456789012345678901234567890123456789012345678901234567890" =>
"57edf4a22be3c955ac49da2e2107b67a",
"foobad" => "3858f62230ac3c915f300c664312c63f"]
 
 
println("Testing Julia's MD5 hash against RFC 1321.")
for k in sort(collect(keys(tests)), by=(x)->length(x))
mysum = md5sum(k)
print(@sprintf("  %15s => ", trunc(k, 15)), mysum)
if mysum == tests[k]
println(" MD5 OK")
else
println(" MD5 Bad")
println(" The sum should be ", tests[k])
end
end
 

trunc is a Julia built-in for numbers, that this program extends it to strings.

Output:

Testing is done using the test suite specified in the RFC. I added "foobad" with a bogus hash (that of "foobar") to demonstrate that the test identifies bad hashes.

Testing Julia's MD5 hash against RFC 1321.
                    => d41d8cd98f00b204e9800998ecf8427e MD5 OK
                  a => 0cc175b9c0f1b6a831c399e269772661 MD5 OK
                abc => 900150983cd24fb0d6963f7d28e17f72 MD5 OK
             foobad => 6ce0d31e08fc3c4de8e3b2fa0d3d72ff MD5 Bad
    The sum should be  3858f62230ac3c915f300c664312c63f
     message digest => f96b697d7cb7938d525a2f31aaf161d0 MD5 OK
    abcdefghijkl... => c3fcd3d76192e4007dfb496cca67e13b MD5 OK
    ABCDEFGHIJKL... => d174ab98d277d9f5a5611c2c9f419d9f MD5 OK
    123456789012... => 57edf4a22be3c955ac49da2e2107b67a MD5 OK

Kotlin

// version 1.0.6
 
import java.security.MessageDigest
 
fun main(args: Array<String>) {
val text = "The quick brown fox jumped over the lazy dog's back"
val bytes = text.toByteArray()
val md = MessageDigest.getInstance("MD5")
val digest = md.digest(bytes)
for (byte in digest) print("%02x".format(byte))
println()
}
Output:
e38ca1d920c4b8b8d3946b2c72f01680

Lasso

Encrypt_MD5('Welcome all Rhinos!')
//80ba88ee2600e9e9b36e739458c39ebd

Test suite

local(test = map(
'a' = '0cc175b9c0f1b6a831c399e269772661',
'abc' = '900150983cd24fb0d6963f7d28e17f72',
'message digest' = 'f96b697d7cb7938d525a2f31aaf161d0',
'abcdefghijklmnopqrstuvwxyz' = 'c3fcd3d76192e4007dfb496cca67e13b',
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789' = 'd174ab98d277d9f5a5611c2c9f419d9f',
'12345678901234567890123456789012345678901234567890123456789012345678901234567890' = '57edf4a22be3c955ac49da2e2107b67a'
)
)
with a in #test->keys do => {^
'testing: "'+#a+'": '+(Encrypt_MD5(#a)->asBytes == #test->find(#a)->asBytes)+'\r'
^}
Output:
testing: "12345678901234567890123456789012345678901234567890123456789012345678901234567890": true
testing: "a": true
testing: "abc": true
testing: "abcdefghijklmnopqrstuvwxyz": true
testing: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789": true
testing: "message digest": true

Liberty BASIC

'[RC]MD5
'from tsh73's January 2008 code
 
text$="The quick brown fox jumps over the lazy dog"
checkSum$="9e107d9d372bb6826bd81d3542a419d6"
 
print text$
print checkSum$
 
test$=md5$(text$)
 
if test$=checkSum$ then
print "passed"
print test$
else
print "failed"
end if
end
 
function md5$(text$)
 
dim r(64)
dim k(64)
dim w(16)
global two32
two32=2^32
 
'prepare the MD5 checksum table
restore [perRoundShiftAmounts]
for i=0 to 63
read x
r(i)=x
next
 
'prepare constants
for i=0 to 63
k(i) = int(abs(sin(i+1)) * two32)
next
 
'initialise variables
h0 = HEXDEC("67452301")
h1 = HEXDEC("EFCDAB89")
h2 = HEXDEC("98BADCFE")
h3 = HEXDEC("10325476")
 
'find num bits in message
numbits=len(text$)*8
 
'add bits "10000000"
text$=text$+chr$(128)
 
'add bits "00000000"
while len(text$) mod 64 <> 56
text$=text$+chr$(0)
wend
 
'add original length in bits
text$=text$+dec2asc$(numbits)
 
'MD5 rounds
'process in 64 byte chunks 512bits
for chunk = 1 to len(text$) step 64
chunk$ = mid$(text$, chunk, 64)
for word = 0 TO 15
'invert byte order
b0 = asc(mid$(chunk$, word*4+1, 1))
b1 = asc(mid$(chunk$, word*4+2, 1))
b2 = asc(mid$(chunk$, word*4+3, 1))
b3 = asc(mid$(chunk$, word*4+4, 1))
w(word) = ((b3*256+b2)*256+b1)*256+b0
next word
a = h0
b = h1
c = h2
d = h3
for i = 0 to 63
select case
case 0 <= i and i <= 15
f = (b and c) or (bitNot(b) and d)
g = i
case 16 <= i and i <= 31
f = (d and b) or (bitNot(d) and c)
g = (5 * i + 1) mod 16
case 32 <= i and i <= 47
f = b xor c xor d
g = (3 * i + 5) mod 16
case 48 <= i and i <= 63
f = c xor (b or bitNot(d))
g = (7 * i) mod 16
end select
temp = d
d = c
c = b
b=b+leftrotate(a + f + k(i) + w(g),r(i))
b = b mod two32
a = temp
next i
h0 = (h0 + a) mod two32
h1 = (h1 + b) mod two32
h2 = (h2 + c) mod two32
h3 = (h3 + d) mod two32
next chunk
 
md5$ = revOrd$(DECHEX$(h0))+_
revOrd$(DECHEX$(h1))+_
revOrd$(DECHEX$(h2))+_
revOrd$(DECHEX$(h3))
 
[perRoundShiftAmounts]
DATA 7,12,17,22, 7,12,17,22, 7,12,17,22, 7,12,17,22
DATA 5, 9,14,20, 5, 9,14,20, 5, 9,14,20, 5, 9,14,20
DATA 4,11,16,23, 4,11,16,23, 4,11,16,23, 4,11,16,23
DATA 6,10,15,21, 6,10,15,21, 6,10,15,21, 6,10,15,21
 
end function
 
 
' dec2asc: dec to 8 byte asc
function dec2asc$(n)
h$ = ""
for i = 1 to 8
h$ = h$ + chr$(n mod 256)
n = int(n/256)
next
dec2asc$= h$
end function
 
' bitNot
function bitNot(num)
bitNot = two32 -1 -num
end function
 
' leftrotate: spins bits left n times
function leftrotate(num,times)
num=num mod two32
r = (num*2^times) mod two32
l = int(num/(2^(32-times)))
leftrotate = r+l
end function
 
' reverse the HEXDEC$ order
function revOrd$(a$)
a$=left$("00000000", 8-len(a$))+a$
revOrd$ = lower$(mid$(a$,7,2)+mid$(a$,5,2)+mid$(a$,3,2)+mid$(a$,1,2))
end function

Lingo

  • Using a binary plugin ("Xtra"):
Library: Crypto Xtra
put cx_md5_string(str)
  • Pure Lingo implementation
----------------------------------------
-- Calculates MD5 hash of string or bytearray
-- @param {bytearray|string} input
-- @return {bytearray} (16 bytes)
----------------------------------------
on md5 (input)
if stringP(input) then input = bytearray(input)
 
-- Convert string to list of little-endian words...
t_iLen = input.length * 8
t_iCnt = (t_iLen + 64) / 512 * 16 + 16
 
-- Create list, fill with zeros...
x = []
x.SetAt(t_iCnt, 0)
 
t_fArr = [1, 256, 65536, 16777216]
i = 0
j = 0
repeat while i < t_iLen
j = j + 1
t_iNext = i / 32 + 1
t_iTemp = bitAnd(input[i/8+1], 255) * t_fArr[j]
x[t_iNext] = bitOr(x[t_iNext], t_iTemp)
i = i + 8
j = j mod 4
end repeat
 
-- Append padding...
t_iNext = t_iLen / 32 + 1
x[t_iNext] = bitOr(x[t_iNext], 128 * t_fArr[j + 1])
x[(t_iLen + 64) / 512 * 16 + 15] = t_iLen
 
-- Actual algorithm starts here...
 
a = 1732584193
b = -271733879
c = -1732584194
d = 271733878
i = 1
 
t_iWrap = the maxInteger + 1
t_iCount = x.count + 1
 
repeat while i < t_iCount
 
olda = a
oldb = b
oldc = c
oldd = d
 
-- Round(1) --
n = bitOr(bitAnd(b, c), bitAnd(bitNot(b), d)) + a + x[i] - 680876936
if(n < 0) then a = bitOr(n * 128, bitOr((n + t_iWrap) / 33554432, 64)) + b
else a = bitOr(n * 128, n / 33554432) + b
n = bitOr(bitAnd(a, b), bitAnd(bitNot(a), c)) + d + x[i + 1] - 389564586
if(n < 0) then d = bitOr(n * 4096, bitOr((n + t_iWrap) / 1048576, 2048)) + a
else d = bitOr(n * 4096, n / 1048576) + a
n = bitOr(bitAnd(d, a), bitAnd(bitNot(d), b)) + c + x[i + 2] + 606105819
if(n < 0) then c = bitOr(n * 131072, bitOr((n + t_iWrap) / 32768, 65536)) + d
else c = bitOr(n * 131072, n / 32768) + d
n = bitOr(bitAnd(c, d), bitAnd(bitNot(c), a)) + b + x[i + 3] - 1044525330
if(n < 0) then b = bitOr(n * 4194304, bitOr((n + t_iWrap) / 1024, 2097152)) + c
else b = bitOr(n * 4194304, n / 1024) + c
n = bitOr(bitAnd(b, c), bitAnd(bitNot(b), d)) + a + x[i + 4] - 176418897
if(n < 0) then a = bitOr(n * 128, bitOr((n + t_iWrap) / 33554432, 64)) + b
else a = bitOr(n * 128, n / 33554432) + b
n = bitOr(bitAnd(a, b), bitAnd(bitNot(a), c)) + d + x[i + 5] + 1200080426
if(n < 0) then d = bitOr(n * 4096, bitOr((n + t_iWrap) / 1048576, 2048)) + a
else d = bitOr(n * 4096, n / 1048576) + a
n = bitOr(bitAnd(d, a), bitAnd(bitNot(d), b)) + c + x[i + 6] - 1473231341
if(n < 0) then c = bitOr(n * 131072, bitOr((n + t_iWrap) / 32768, 65536)) + d
else c = bitOr(n * 131072, n / 32768) + d
n = bitOr(bitAnd(c, d), bitAnd(bitNot(c), a)) + b + x[i + 7] - 45705983
if(n < 0) then b = bitOr(n * 4194304, bitOr((n + t_iWrap) / 1024, 2097152)) + c
else b = bitOr(n * 4194304, n / 1024) + c
n = bitOr(bitAnd(b, c), bitAnd(bitNot(b), d)) + a + x[i + 8] + 1770035416
if(n < 0) then a = bitOr(n * 128, bitOr((n + t_iWrap) / 33554432, 64)) + b
else a = bitOr(n * 128, n / 33554432) + b
n = bitOr(bitAnd(a, b), bitAnd(bitNot(a), c)) + d + x[i + 9] - 1958414417
if(n < 0) then d = bitOr(n * 4096, bitOr((n + t_iWrap) / 1048576, 2048)) + a
else d = bitOr(n * 4096, n / 1048576) + a
n = bitOr(bitAnd(d, a), bitAnd(bitNot(d), b)) + c + x[i + 10] - 42063
if(n < 0) then c = bitOr(n * 131072, bitOr((n + t_iWrap) / 32768, 65536)) + d
else c = bitOr(n * 131072, n / 32768) + d
n = bitOr(bitAnd(c, d), bitAnd(bitNot(c), a)) + b + x[i + 11] - 1990404162
if(n < 0) then b = bitOr(n * 4194304, bitOr((n + t_iWrap) / 1024, 2097152)) + c
else b = bitOr(n * 4194304, n / 1024) + c
n = bitOr(bitAnd(b, c), bitAnd(bitNot(b), d)) + a + x[i + 12] + 1804603682
if(n < 0) then a = bitOr(n * 128, bitOr((n + t_iWrap) / 33554432, 64)) + b
else a = bitOr(n * 128, n / 33554432) + b
n = bitOr(bitAnd(a, b), bitAnd(bitNot(a), c)) + d + x[i + 13] - 40341101
if(n < 0) then d = bitOr(n * 4096, bitOr((n + t_iWrap) / 1048576, 2048)) + a
else d = bitOr(n * 4096, n / 1048576) + a
n = bitOr(bitAnd(d, a), bitAnd(bitNot(d), b)) + c + x[i + 14] - 1502002290
if(n < 0) then c = bitOr(n * 131072, bitOr((n + t_iWrap) / 32768, 65536)) + d
else c = bitOr(n * 131072, n / 32768) + d
n = bitOr(bitAnd(c, d), bitAnd(bitNot(c), a)) + b + x[i + 15] + 1236535329
if(n < 0) then b = bitOr(n * 4194304, bitOr((n + t_iWrap) / 1024, 2097152)) + c
else b = bitOr(n * 4194304, n / 1024) + c
 
-- Round(2) --
n = bitOr(bitAnd(b, d), bitAnd(c, bitNot(d))) + a + x[i + 1] - 165796510
if(n < 0) then a = bitOr(n * 32, bitOr((n + t_iWrap) / 134217728, 16)) + b
else a = bitOr(n * 32, n / 134217728) + b
n = bitOr(bitAnd(a, c), bitAnd(b, bitNot(c))) + d + x[i + 6] - 1069501632
if(n < 0) then d = bitOr(n * 512, bitOr((n + t_iWrap) / 8388608, 256)) + a
else d = bitOr(n * 512, n / 8388608) + a
n = bitOr(bitAnd(d, b), bitAnd(a, bitNot(b))) + c + x[i + 11] + 643717713
if(n < 0) then c = bitOr(n * 16384, bitOr((n + t_iWrap) / 262144, 8192)) + d
else c = bitOr(n * 16384, n / 262144) + d
n = bitOr(bitAnd(c, a), bitAnd(d, bitNot(a))) + b + x[i] - 373897302
if(n < 0) then b = bitOr(n * 1048576, bitOr((n + t_iWrap) / 4096, 524288)) + c
else b = bitOr(n * 1048576, n / 4096) + c
n = bitOr(bitAnd(b, d), bitAnd(c, bitNot(d))) + a + x[i + 5] - 701558691
if(n < 0) then a = bitOr(n * 32, bitOr((n + t_iWrap) / 134217728, 16)) + b
else a = bitOr(n * 32, n / 134217728) + b
n = bitOr(bitAnd(a, c), bitAnd(b, bitNot(c))) + d + x[i + 10] + 38016083
if(n < 0) then d = bitOr(n * 512, bitOr((n + t_iWrap) / 8388608, 256)) + a
else d = bitOr(n * 512, n / 8388608) + a
n = bitOr(bitAnd(d, b), bitAnd(a, bitNot(b))) + c + x[i + 15] - 660478335
if(n < 0) then c = bitOr(n * 16384, bitOr((n + t_iWrap) / 262144, 8192)) + d
else c = bitOr(n * 16384, n / 262144) + d
n = bitOr(bitAnd(c, a), bitAnd(d, bitNot(a))) + b + x[i + 4] - 405537848
if(n < 0) then b = bitOr(n * 1048576, bitOr((n + t_iWrap) / 4096, 524288)) + c
else b = bitOr(n * 1048576, n / 4096) + c
n = bitOr(bitAnd(b, d), bitAnd(c, bitNot(d))) + a + x[i + 9] + 568446438
if(n < 0) then a = bitOr(n * 32, bitOr((n + t_iWrap) / 134217728, 16)) + b
else a = bitOr(n * 32, n / 134217728) + b
n = bitOr(bitAnd(a, c), bitAnd(b, bitNot(c))) + d + x[i + 14] - 1019803690
if(n < 0) then d = bitOr(n * 512, bitOr((n + t_iWrap) / 8388608, 256)) + a
else d = bitOr(n * 512, n / 8388608) + a
n = bitOr(bitAnd(d, b), bitAnd(a, bitNot(b))) + c + x[i + 3] - 187363961
if(n < 0) then c = bitOr(n * 16384, bitOr((n + t_iWrap) / 262144, 8192)) + d
else c = bitOr(n * 16384, n / 262144) + d
n = bitOr(bitAnd(c, a), bitAnd(d, bitNot(a))) + b + x[i + 8] + 1163531501
if(n < 0) then b = bitOr(n * 1048576, bitOr((n + t_iWrap) / 4096, 524288)) + c
else b = bitOr(n * 1048576, n / 4096) + c
n = bitOr(bitAnd(b, d), bitAnd(c, bitNot(d))) + a + x[i + 13] - 1444681467
if(n < 0) then a = bitOr(n * 32, bitOr((n + t_iWrap) / 134217728, 16)) + b
else a = bitOr(n * 32, n / 134217728) + b
n = bitOr(bitAnd(a, c), bitAnd(b, bitNot(c))) + d + x[i + 2] - 51403784
if(n < 0) then d = bitOr(n * 512, bitOr((n + t_iWrap) / 8388608, 256)) + a
else d = bitOr(n * 512, n / 8388608) + a
n = bitOr(bitAnd(d, b), bitAnd(a, bitNot(b))) + c + x[i + 7] + 1735328473
if(n < 0) then c = bitOr(n * 16384, bitOr((n + t_iWrap) / 262144, 8192)) + d
else c = bitOr(n * 16384, n / 262144) + d
n = bitOr(bitAnd(c, a), bitAnd(d, bitNot(a))) + b + x[i + 12] - 1926607734
if(n < 0) then b = bitOr(n * 1048576, bitOr((n + t_iWrap) / 4096, 524288)) + c
else b = bitOr(n * 1048576, n / 4096) + c
 
-- Round(3) --
n = bitXor(bitXor(b, c), d) + a + x[i + 5] - 378558
if(n < 0) then a = bitOr(n * 16, bitOr((n + t_iWrap) / 268435456, 8)) + b
else a = bitOr(n * 16, n / 268435456) + b
n = bitXor(bitXor(a, b), c) + d + x[i + 8] - 2022574463
if(n < 0) then d = bitOr(n * 2048, bitOr((n + t_iWrap) / 2097152, 1024)) + a
else d = bitOr(n * 2048, n / 2097152) + a
n = bitXor(bitXor(d, a), b) + c + x[i + 11] + 1839030562
if(n < 0) then c = bitOr(n * 65536, bitOr((n + t_iWrap) / 65536, 32768)) + d
else c = bitOr(n * 65536, n / 65536) + d
n = bitXor(bitXor(c, d), a) + b + x[i + 14] - 35309556
if(n < 0) then b = bitOr(n * 8388608, bitOr((n + t_iWrap) / 512, 4194304)) + c
else b = bitOr(n * 8388608, n / 512) + c
n = bitXor(bitXor(b, c), d) + a + x[i + 1] - 1530992060
if(n < 0) then a = bitOr(n * 16, bitOr((n + t_iWrap) / 268435456, 8)) + b
else a = bitOr(n * 16, n / 268435456) + b
n = bitXor(bitXor(a, b), c) + d + x[i + 4] + 1272893353
if(n < 0) then d = bitOr(n * 2048, bitOr((n + t_iWrap) / 2097152, 1024)) + a
else d = bitOr(n * 2048, n / 2097152) + a
n = bitXor(bitXor(d, a), b) + c + x[i + 7] - 155497632
if(n < 0) then c = bitOr(n * 65536, bitOr((n + t_iWrap) / 65536, 32768)) + d
else c = bitOr(n * 65536, n / 65536) + d
n = bitXor(bitXor(c, d), a) + b + x[i + 10] - 1094730640
if(n < 0) then b = bitOr(n * 8388608, bitOr((n + t_iWrap) / 512, 4194304)) + c
else b = bitOr(n * 8388608, n / 512) + c
n = bitXor(bitXor(b, c), d) + a + x[i + 13] + 681279174
if(n < 0) then a = bitOr(n * 16, bitOr((n + t_iWrap) / 268435456, 8)) + b
else a = bitOr(n * 16, n / 268435456) + b
n = bitXor(bitXor(a, b), c) + d + x[i] - 358537222
if(n < 0) then d = bitOr(n * 2048, bitOr((n + t_iWrap) / 2097152, 1024)) + a
else d = bitOr(n * 2048, n / 2097152) + a
n = bitXor(bitXor(d, a), b) + c + x[i + 3] - 722521979
if(n < 0) then c = bitOr(n * 65536, bitOr((n + t_iWrap) / 65536, 32768)) + d
else c = bitOr(n * 65536, n / 65536) + d
n = bitXor(bitXor(c, d), a) + b + x[i + 6] + 76029189
if(n < 0) then b = bitOr(n * 8388608, bitOr((n + t_iWrap) / 512, 4194304)) + c
else b = bitOr(n * 8388608, n / 512) + c
n = bitXor(bitXor(b, c), d) + a + x[i + 9] - 640364487
if(n < 0) then a = bitOr(n * 16, bitOr((n + t_iWrap) / 268435456, 8)) + b
else a = bitOr(n * 16, n / 268435456) + b
n = bitXor(bitXor(a, b), c) + d + x[i + 12] - 421815835
if(n < 0) then d = bitOr(n * 2048, bitOr((n + t_iWrap) / 2097152, 1024)) + a
else d = bitOr(n * 2048, n / 2097152) + a
n = bitXor(bitXor(d, a), b) + c + x[i + 15] + 530742520
if(n < 0) then c = bitOr(n * 65536, bitOr((n + t_iWrap) / 65536, 32768)) + d
else c = bitOr(n * 65536, n / 65536) + d
n = bitXor(bitXor(c, d), a) + b + x[i + 2] - 995338651
if(n < 0) then b = bitOr(n * 8388608, bitOr((n + t_iWrap) / 512, 4194304)) + c
else b = bitOr(n * 8388608, n / 512) + c
 
-- Round(4) --
n = bitXor(c, bitOr(b, bitNot(d))) + a + x[i] - 198630844
if(n < 0) then a = bitOr(n * 64, bitOr((n + t_iWrap) / 67108864, 32)) + b
else a = bitOr(n * 64, n / 67108864) + b
n = bitXor(b, bitOr(a, bitNot(c))) + d + x[i + 7] + 1126891415
if(n < 0) then d = bitOr(n * 1024, bitOr((n + t_iWrap) / 4194304, 512)) + a
else d = bitOr(n * 1024, n / 4194304) + a
n = bitXor(a, bitOr(d, bitNot(b))) + c + x[i + 14] - 1416354905
if(n < 0) then c = bitOr(n * 32768, bitOr((n + t_iWrap) / 131072, 16384)) + d
else c = bitOr(n * 32768, n / 131072) + d
n = bitXor(d, bitOr(c, bitNot(a))) + b + x[i + 5] - 57434055
if(n < 0) then b = bitOr(n * 2097152, bitOr((n + t_iWrap) / 2048, 1048576)) + c
else b = bitOr(n * 2097152, n / 2048) + c
n = bitXor(c, bitOr(b, bitNot(d))) + a + x[i + 12] + 1700485571
if(n < 0) then a = bitOr(n * 64, bitOr((n + t_iWrap) / 67108864, 32)) + b
else a = bitOr(n * 64, n / 67108864) + b
n = bitXor(b, bitOr(a, bitNot(c))) + d + x[i + 3] - 1894986606
if(n < 0) then d = bitOr(n * 1024, bitOr((n + t_iWrap) / 4194304, 512)) + a
else d = bitOr(n * 1024, n / 4194304) + a
n = bitXor(a, bitOr(d, bitNot(b))) + c + x[i + 10] - 1051523
if(n < 0) then c = bitOr(n * 32768, bitOr((n + t_iWrap) / 131072, 16384)) + d
else c = bitOr(n * 32768, n / 131072) + d
n = bitXor(d, bitOr(c, bitNot(a))) + b + x[i + 1] - 2054922799
if(n < 0) then b = bitOr(n * 2097152, bitOr((n + t_iWrap) / 2048, 1048576)) + c
else b = bitOr(n * 2097152, n / 2048) + c
n = bitXor(c, bitOr(b, bitNot(d))) + a + x[i + 8] + 1873313359
if(n < 0) then a = bitOr(n * 64, bitOr((n + t_iWrap) / 67108864, 32)) + b
else a = bitOr(n * 64, n / 67108864) + b
n = bitXor(b, bitOr(a, bitNot(c))) + d + x[i + 15] - 30611744
if(n < 0) then d = bitOr(n * 1024, bitOr((n + t_iWrap) / 4194304, 512)) + a
else d = bitOr(n * 1024, n / 4194304) + a
n = bitXor(a, bitOr(d, bitNot(b))) + c + x[i + 6] - 1560198380
if(n < 0) then c = bitOr(n * 32768, bitOr((n + t_iWrap) / 131072, 16384)) + d
else c = bitOr(n * 32768, n / 131072) + d
n = bitXor(d, bitOr(c, bitNot(a))) + b + x[i + 13] + 1309151649
if(n < 0) then b = bitOr(n * 2097152, bitOr((n + t_iWrap) / 2048, 1048576)) + c
else b = bitOr(n * 2097152, n / 2048) + c
n = bitXor(c, bitOr(b, bitNot(d))) + a + x[i + 4] - 145523070
if(n < 0) then a = bitOr(n * 64, bitOr((n + t_iWrap) / 67108864, 32)) + b
else a = bitOr(n * 64, n / 67108864) + b
n = bitXor(b, bitOr(a, bitNot(c))) + d + x[i + 11] - 1120210379
if(n < 0) then d = bitOr(n * 1024, bitOr((n + t_iWrap) / 4194304, 512)) + a
else d = bitOr(n * 1024, n / 4194304) + a
n = bitXor(a, bitOr(d, bitNot(b))) + c + x[i + 2] + 718787259
if(n < 0) then c = bitOr(n * 32768, bitOr((n + t_iWrap) / 131072, 16384)) + d
else c = bitOr(n * 32768, n / 131072) + d
n = bitXor(d, bitOr(c, bitNot(a))) + b + x[i + 9] - 343485551
if(n < 0) then b = bitOr(n * 2097152, bitOr((n + t_iWrap) / 2048, 1048576)) + c
else b = bitOr(n * 2097152, n / 2048) + c
 
a = a + olda
b = b + oldb
c = c + oldc
d = d + oldd
i = i + 16
 
end repeat
 
t_iArr = [a, b, c, d]
 
ba = bytearray()
p = 1
repeat with i in t_iArr
if(i > 0) then
repeat with n = 1 to 4
ba[p] = (i mod 256)
i = i / 256
p = p+1
end repeat
else
i = bitNot(i)
repeat with n = 1 to 4
ba[p] = 255-(i mod 256)
i = i / 256
p = p+1
end repeat
end if
end repeat
ba.position = 1
return ba
end

LiveCode

Livecode has built-in support for md4 and md5

function md5sum hashtext
local md5, mdhex
put md5Digest(hashtext) into md5
get binaryDecode("H*",md5,mdhex)
return mdhex
end md5sum
Tests
command md5testsuite
// rfc1321 MD5 test suite:
local md5
put md5sum("") is "d41d8cd98f00b204e9800998ecf8427e" into md5["empty"]
put md5sum("a") is "0cc175b9c0f1b6a831c399e269772661" into md5["a"]
put md5sum("abc") is "900150983cd24fb0d6963f7d28e17f72" into md5["abc"]
put md5sum("message digest") is "f96b697d7cb7938d525a2f31aaf161d0" into md5["message digest"]
put md5sum("abcdefghijklmnopqrstuvwxyz") is "c3fcd3d76192e4007dfb496cca67e13b" \
into md5["abclower"]
put md5sum("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") \
is "d174ab98d277d9f5a5611c2c9f419d9f" into md5["abcupper"]
put md5sum("12345678901234567890123456789012345678901234567890123456789012345678901234567890")\
is "57edf4a22be3c955ac49da2e2107b67a" into md5["123"]
 
repeat for each line n in the keys of md5
if md5[n] is not true then
put "err" & tab & n & return after results
exit repeat
else
put "ok" & tab & n & return after results
end if
end repeat
put results
end md5testsuite

Output

ok	abc
ok	abclower
ok	123
ok	abcupper
ok	message digest
ok	a
ok	empty

Lua

Using the Kepler MD5 library:

require "md5"
 
--printing a sum:
print(md5.sumhexa"The quick brown fox jumps over the lazy dog")
 
--running the test suite:
 
local function test(msg,sum) assert(md5.sumhexa(msg)==sum) end
 
test("","d41d8cd98f00b204e9800998ecf8427e")
test("a","0cc175b9c0f1b6a831c399e269772661")
test("abc","900150983cd24fb0d6963f7d28e17f72")
test("message digest","f96b697d7cb7938d525a2f31aaf161d0")
test("abcdefghijklmnopqrstuvwxyz","c3fcd3d76192e4007dfb496cca67e13b")
test("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789","d174ab98d277d9f5a5611c2c9f419d9f")
test("12345678901234567890123456789012345678901234567890123456789012345678901234567890","57edf4a22be3c955ac49da2e2107b67a")

Maple

The Hash command in the StringTools package computes the MD5 hash value of a string.

 
> with( StringTools ):
> Hash( "" );
"d41d8cd98f00b204e9800998ecf8427e"
 
> Hash( "a" );
"0cc175b9c0f1b6a831c399e269772661"
 
> Hash( "abc" );
"900150983cd24fb0d6963f7d28e17f72"
 
> Hash( "message digest" );
"f96b697d7cb7938d525a2f31aaf161d0"
 
> Hash( "abcdefghijklmnopqrstuvwxyz" );
"c3fcd3d76192e4007dfb496cca67e13b"
 
> Hash( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" );
"d174ab98d277d9f5a5611c2c9f419d9f"
 
> Hash( "12345678901234567890123456789012345678901234567890123456789012345678901234567890" );
"57edf4a22be3c955ac49da2e2107b67a"
 

Mathematica

Mathematica has built-in function Hash and FileHash, it should be noted that Hash["hello","MD5"] would give the MD5 of ""hello"" in stead of "hello". This is done because it wants to distinguish between the variable hello and the string "hello". A workaround for getting MD5's from strings would be:

 StringHash[string_String]:=Module[{stream=OpenWrite[],file,hash},
WriteString[stream,string];
file=Close[stream];
hash=FileHash[file,"MD5"];
DeleteFile[file];
hash
]

Example:

 StringHash["The quick brown fox jumped over the lazy dog's back"] // BaseForm[#, 16] &

gives back:

 e38ca1d920c4b8b8d3946b2c72f01680

MATLAB

This code also works with Octave (but Octave already provides md5sum(), see Octave example).

function digest = md5(message)
% digest = md5(message)
% Compute the MD5 digest of the message, as a hexadecimal digest.
 
% Follow the MD5 algorithm from RFC 1321 [1] and Wikipedia [2].
% [1] http://tools.ietf.org/html/rfc1321
% [2] http://en.wikipedia.org/wiki/MD5
 
% m is the modulus for 32-bit unsigned arithmetic.
m = 2 ^ 32;
 
% s is the shift table for circshift(). Each shift is negative
% because it is a left shift.
s = [-7, -12, -17, -22
-5, -9, -14, -20
-4, -11, -16, -23
-6, -10, -15, -21];
 
% t is the sine table. Each sine is a 32-bit integer, unsigned.
t = floor(abs(sin(1:64)) .* m);
 
% Initialize the hash, as a row vector of 32-bit integers.
digest = [hex2dec('67452301') ...
hex2dec('EFCDAB89') ...
hex2dec('98BADCFE') ...
hex2dec('10325476')];
 
% If message contains characters, convert them to ASCII values.
message = double(message);
bytelen = numel(message);
 
% Pad the message by appending a 1, then appending enough 0s to make
% the bit length congruent to 448 mod 512. Because we have bytes, we
% append 128 '10000000', then append enough 0s '00000000's to make
% the byte length congruent to 56 mod 64.
message = [message, 128, zeros(1, mod(55 - bytelen, 64))];
 
% Convert the message to 32-bit integers, little endian.
% For little endian, first byte is least significant byte.
message = reshape(message, 4, numel(message) / 4);
message = message(1,:) + ... % least significant byte
message(2,:) * 256 + ...
message(3,:) * 65536 + ...
message(4,:) * 16777216; % most significant byte
 
% Append the bit length as a 64-bit integer, little endian.
bitlen = bytelen * 8;
message = [message, mod(bitlen, m), mod(bitlen / m, m)];
 
% Process each 512-bit block. Because we have 32-bit integers, each
% block has 16 elements, message(k + (0:15)).
for k = 1:16:numel(message)
% Copy hash.
a = digest(1); b = digest(2); c = digest(3); d = digest(4);
 
% Do 64 operations.
for i = (1:64)
% Convert b, c, d to row vectors of bits (0s and 1s).
bv = dec2bin(b, 32) - '0';
cv = dec2bin(c, 32) - '0';
dv = dec2bin(d, 32) - '0';
 
% Find f = mix of b, c, d.
% ki = index in 0:15, to message(k + ki).
% sr = row in 1:4, to s(sr, :).
if i <= 16 % Round 1
f = (bv & cv) | (~bv & dv);
ki = i - 1;
sr = 1;
elseif i <= 32 % Round 2
f = (bv & dv) | (cv & ~dv);
ki = mod(5 * i - 4, 16);
sr = 2;
elseif i <= 48 % Round 3
f = xor(bv, xor(cv, dv));
ki = mod(3 * i + 2, 16);
sr = 3;
else % Round 4
f = xor(cv, bv | ~dv);
ki = mod(7 * i - 7, 16);
sr = 4;
end
 
% Convert f, from row vector of bits, to 32-bit integer.
f = bin2dec(char(f + '0'));
 
% Do circular shift of sum.
sc = mod(i - 1, 4) + 1;
sum = mod(a + f + message(k + ki) + t(i), m);
sum = dec2bin(sum, 32);
sum = circshift(sum, [0, s(sr, sc)]);
sum = bin2dec(sum);
 
% Update a, b, c, d.
temp = d;
d = c;
c = b;
b = mod(b + sum, m);
a = temp;
end %for i
 
% Add hash of this block to hash of previous blocks.
digest = mod(digest + [a, b, c, d], m);
end %for k
 
% Convert hash from 32-bit integers, little endian, to bytes.
digest = [digest % least significant byte
digest / 256
digest / 65536
digest / 16777216]; % most significant byte
digest = reshape(mod(floor(digest), 256), 1, numel(digest));
 
% Convert hash to hexadecimal.
digest = dec2hex(digest);
digest = reshape(transpose(digest), 1, numel(digest));
end %md5

Sample Usage:

octave:14> md5('Rosetta Code')
ans = CCA1BF66B09554E10F837838C3D3EFB1

MOO

string = "The quick brown fox jumped over the lazy dog's back";
player:tell(string_hash(string));

Nemerle

Translation of: C#
using System;
using System.Console;
using System.Text;
using System.Security.Cryptography;
using Nemerle.Collections;
using Nemerle.Collections.NCollectionsExtensions;
 
module Md5
{
HashMD5(input : string) : string
{
BitConverter.ToString
(MD5.Create().ComputeHash(Encoding.Default.GetBytes(input))).Replace("-", "").ToLower()
}
 
IsValidMD5(text : string, hash : string) : bool
{
HashMD5(text) == hash.ToLower()
}
 
Main() : void
{
def examples = ["The quick brown fox jumped over the lazy dog's back", "", "a", "abc", "message digest",
"abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"12345678901234567890123456789012345678901234567890123456789012345678901234567890"];
def hashes = ["e38ca1d920c4b8b8d3946b2c72f01680", "d41d8cd98f00b204e9800998ecf8427e",
"0cc175b9c0f1b6a831c399e269772661", "900150983cd24fb0d6963f7d28e17f72",
"f96b697d7cb7938d525a2f31aaf161d0", "c3fcd3d76192e4007dfb496cca67e13b",
"d174ab98d277d9f5a5611c2c9f419d9f", "57edf4a22be3c955ac49da2e2107b67a"];
def tests = Hashtable(ZipLazy(examples, hashes));
foreach (test in tests)
Write($"$(IsValidMD5(test.Key, test.Value)) ");
}
}

Output:

True   True   True   True   True   True   True   True

NetRexx

/* NetRexx */
 
options replace format comments java crossref savelog symbols binary
 
import java.security.MessageDigest
 
MD5('The quick brown fox jumps over the lazy dog', '9e107d9d372bb6826bd81d3542a419d6')
-- RFC 1321 MD5 test suite:
MD5("", 'd41d8cd98f00b204e9800998ecf8427e')
MD5("a", '0cc175b9c0f1b6a831c399e269772661')
MD5("abc", '900150983cd24fb0d6963f7d28e17f72')
MD5("message digest", 'f96b697d7cb7938d525a2f31aaf161d0')
MD5("abcdefghijklmnopqrstuvwxyz", 'c3fcd3d76192e4007dfb496cca67e13b')
MD5("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", 'd174ab98d277d9f5a5611c2c9f419d9f')
MD5("12345678901234567890123456789012345678901234567890123456789012345678901234567890", '57edf4a22be3c955ac49da2e2107b67a')
 
return
 
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
method MD5(messageText, verifyCheck) public static
 
algorithm = 'MD5'
digestSum = getDigest(messageText, algorithm)
 
say '<Message>'messageText'</Message>'
say Rexx('<'algorithm'>').right(12) || digestSum'</'algorithm'>'
say Rexx('<Verify>').right(12) || verifyCheck'</Verify>'
if digestSum == verifyCheck then say algorithm 'Confirmed'
else say algorithm 'Failed'
 
return
 
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
method getDigest(messageText = Rexx, algorithm = Rexx 'MD5', encoding = Rexx 'UTF-8', lowercase = boolean 1) public static returns Rexx
 
algorithm = algorithm.upper
encoding = encoding.upper
 
message = String(messageText)
messageBytes = byte[]
digestBytes = byte[]
digestSum = Rexx ''
 
do
messageBytes = message.getBytes(encoding)
md = MessageDigest.getInstance(algorithm)
md.update(messageBytes)
digestBytes = md.digest
 
loop b_ = 0 to digestBytes.length - 1
bb = Rexx(digestBytes[b_]).d2x(2)
if lowercase then digestSum = digestSum || bb.lower
else digestSum = digestSum || bb.upper
end b_
catch ex = Exception
ex.printStackTrace
end
 
return digestSum
 

Output:

<Message>The quick brown fox jumps over the lazy dog</Message>
       <MD5>9e107d9d372bb6826bd81d3542a419d6</MD5>
    <Verify>9e107d9d372bb6826bd81d3542a419d6</Verify>
MD5 Confirmed
<Message></Message>
       <MD5>d41d8cd98f00b204e9800998ecf8427e</MD5>
    <Verify>d41d8cd98f00b204e9800998ecf8427e</Verify>
MD5 Confirmed
<Message>a</Message>
       <MD5>0cc175b9c0f1b6a831c399e269772661</MD5>
    <Verify>0cc175b9c0f1b6a831c399e269772661</Verify>
MD5 Confirmed
<Message>abc</Message>
       <MD5>900150983cd24fb0d6963f7d28e17f72</MD5>
    <Verify>900150983cd24fb0d6963f7d28e17f72</Verify>
MD5 Confirmed
<Message>message digest</Message>
       <MD5>f96b697d7cb7938d525a2f31aaf161d0</MD5>
    <Verify>f96b697d7cb7938d525a2f31aaf161d0</Verify>
MD5 Confirmed
<Message>abcdefghijklmnopqrstuvwxyz</Message>
       <MD5>c3fcd3d76192e4007dfb496cca67e13b</MD5>
    <Verify>c3fcd3d76192e4007dfb496cca67e13b</Verify>
MD5 Confirmed
<Message>ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789</Message>
       <MD5>d174ab98d277d9f5a5611c2c9f419d9f</MD5>
    <Verify>d174ab98d277d9f5a5611c2c9f419d9f</Verify>
MD5 Confirmed
<Message>12345678901234567890123456789012345678901234567890123456789012345678901234567890</Message>
       <MD5>57edf4a22be3c955ac49da2e2107b67a</MD5>
    <Verify>57edf4a22be3c955ac49da2e2107b67a</Verify>
MD5 Confirmed

NewLISP

;; using the crypto module from http://www.newlisp.org/code/modules/crypto.lsp.html
;; (import native functions from the crypto library, provided by OpenSSL)
(module "crypto.lsp")
(crypto:md5 "The quick brown fox jumped over the lazy dog's back")

Nim

import md5
 
echo toMD5("The quick brown fox jumped over the lazy dog's back")

Oberon-2

Works with: oo2c
Library: crypto
 
MODULE MD5;
IMPORT
Crypto:MD5,
Crypto:Utils,
Strings,
Out;
VAR
h: MD5.Hash;
str: ARRAY 128 OF CHAR;
BEGIN
h := MD5.NewHash();
h.Initialize;
str := "The quick brown fox jumped over the lazy dog's back";
h.Update(str,0,Strings.Length(str));
h.GetHash(str,0);
Out.String("MD5: ");Utils.PrintHex(str,0,h.size);Out.Ln
END MD5.
 
Output:
MD5: 
   E38CA1D9   20C4B8B8   D3946B2C   72F01680

Objeck

 
class MD5 {
function : Main(args : String[]) ~ Nil {
in := "The quick brown fox jumped over the lazy dog's back"->ToByteArray();
hash := Encryption.Hash->MD5(in);
hash->ToHexString()->PrintLine();
}
}
 

Objective-C

Works with: GNUstep
only; not Cocoa
NSString *myString = @"The quick brown fox jumped over the lazy dog's back";
NSData *digest = [[myString dataUsingEncoding:NSUTF8StringEncoding] md5Digest]; // or another encoding of your choosing
NSLog(@"%@", [digest hexadecimalRepresentation]);
Works with: iPhone
Works with: Mac OS X
#import <CommonCrypto/CommonDigest.h>
 
NSString *myString = @"The quick brown fox jumped over the lazy dog's back";
NSData *data = [myString dataUsingEncoding:NSUTF8StringEncoding]; // or another encoding of your choosing
unsigned char digest[CC_MD5_DIGEST_LENGTH];
if (CC_MD5([data bytes], [data length], digest)) {
NSMutableString *hex = [NSMutableString string];
for (int i = 0; i < CC_MD5_DIGEST_LENGTH; i++) {
[hex appendFormat: @"%02x", (int)(digest[i])];
}
NSLog(@"%@", hex);
}
Works with: Mac OS X
(need to include "libcrypto.dylib" framework)
#include <openssl/md5.h>
 
NSString *myString = @"The quick brown fox jumped over the lazy dog's back";
NSData *data = [myString dataUsingEncoding:NSUTF8StringEncoding]; // or another encoding of your choosing
unsigned char digest[MD5_DIGEST_LENGTH];
if (MD5([data bytes], [data length], digest)) {
NSMutableString *hex = [NSMutableString string];
for (int i = 0; i < MD5_DIGEST_LENGTH; i++) {
[hex appendFormat: @"%02x", (int)(digest[i])];
}
NSLog(@"%@", hex);
}

OCaml

# Digest.to_hex(Digest.string "The quick brown fox jumped over the lazy dog's back") ;;
- : string = "e38ca1d920c4b8b8d3946b2c72f01680"

Octave

s = "The quick brown fox jumped over the lazy dog's back";
hash = md5sum(s, true);
disp(hash)

For an implementation of MD5, see MATLAB example.

OpenEdge/Progress

The MD5-DIGEST function is readily available, the output is passed thru HEX-ENCODE to convert the raw result to a hexadecimal string, this then needs to be passed thru STRING for display purposes.

MESSAGE 
1 STRING( HEX-ENCODE( MD5-DIGEST( "" ) ) ) SKIP
2 STRING( HEX-ENCODE( MD5-DIGEST( "a" ) ) ) SKIP
3 STRING( HEX-ENCODE( MD5-DIGEST( "abc" ) ) ) SKIP
4 STRING( HEX-ENCODE( MD5-DIGEST( "message digest" ) ) ) SKIP
5 STRING( HEX-ENCODE( MD5-DIGEST( "abcdefghijklmnopqrstuvwxyz" ) ) ) SKIP
6 STRING( HEX-ENCODE( MD5-DIGEST( "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" ) ) ) SKIP
7 STRING( HEX-ENCODE( MD5-DIGEST( "12345678901234567890123456789012345678901234567890123456789012345678901234567890" ) ) )
VIEW-AS ALERT-BOX

Output:

---------------------------
Message
---------------------------
1 d41d8cd98f00b204e9800998ecf8427e 
2 0cc175b9c0f1b6a831c399e269772661 
3 900150983cd24fb0d6963f7d28e17f72 
4 f96b697d7cb7938d525a2f31aaf161d0 
5 c3fcd3d76192e4007dfb496cca67e13b 
6 d174ab98d277d9f5a5611c2c9f419d9f 
7 57edf4a22be3c955ac49da2e2107b67a
---------------------------
OK   
---------------------------

PARI/GP

Build a MD5 plugin using Linux system library and PARI's function interface. (Linux solution)

#include <pari/pari.h>
#include <openssl/md5.h>
 
#define HEX(x) (((x) < 10)? (x)+'0': (x)-10+'a')
 
/*
* PARI/GP func: MD5 hash
*
* gp code: install("plug_md5", "s", "MD5", "<library path>");
*/

GEN plug_md5(char *text)
{
char md[MD5_DIGEST_LENGTH];
char hash[sizeof(md) * 2 + 1];
int i;
 
MD5((unsigned char*)text, strlen(text), (unsigned char*)md);
 
for (i = 0; i < sizeof(md); i++) {
hash[i+i] = HEX((md[i] >> 4) & 0x0f);
hash[i+i+1] = HEX(md[i] & 0x0f);
}
 
hash[sizeof(md) * 2] = 0;
 
return strtoGENstr(hash);
}

Compile with: gcc -Wall -O2 -fPIC -shared md5.c -o libmd5.so -lcrypt -lpari

Load plugin from your home directory into PARI:

install("plug_md5", "s", "MD5", "~/libmd5.so");
 
MD5("The quick brown fox jumped over the lazy dog's back")

Output:

"e38ca1d920c4b8b8d3946b2c72f01680"

Pascal

Pascal has a built-in unit called md5. It can be used to get a digest both for a string and a file.

program GetMd5;

uses md5;

var
  strEncrypted : string;

begin
  strEncrypted := md5Print(md5String('The quick brown fox jumped over the lazy dog''s back'));
  writeln(strEncrypted);
  readln;
end.

output:

 e38ca1d920c4b8b8d3946b2c72f01680

To digest a file, use md5Print(md5File('myfile.txt')) where myfile.txt is a file.

Perl

Library: Digest::MD5MD5
use Digest::MD5 qw(md5_hex);
 
print md5_hex("The quick brown fox jumped over the lazy dog's back"), "\n";

The same in OO manner

use Digest::MD5;
 
$md5 = Digest::MD5->new;
$md5->add("The quick brown fox jumped over the lazy dog's back");
print $md5->hexdigest, "\n";

Perl 6

Library Digest::MD5

use Digest::MD5;
say Digest::MD5.md5_hex: "The quick brown fox jumped over the lazy dog's back";

Phix

See MD5/Implementation#Phix

PHP

$string = "The quick brown fox jumped over the lazy dog's back";
echo md5( $string );

PicoLisp

Using the openssl library (the 'native' function is only in the 64-bit version available):

(let Str "The quick brown fox jumped over the lazy dog's back"
(pack
(mapcar '((B) (pad 2 (hex B)))
(native "libcrypto.so" "MD5" '(B . 16) Str (length Str) '(NIL (16))) ) ) )

Output:

-> "E38CA1D920C4B8B8D3946B2C72F01680"

Pike

import String;
import Crypto.MD5;
 
int main(){
write( string2hex( hash( "The quick brown fox jumped over the lazy dog's back" ) ) + "\n" );
}

PowerShell

Translation of: C#
$string = "The quick brown fox jumped over the lazy dog's back"
$data = [Text.Encoding]::UTF8.GetBytes($string)
$hash = [Security.Cryptography.MD5]::Create().ComputeHash($data)
([BitConverter]::ToString($hash) -replace '-').ToLower()

PureBasic

test$ = "The quick brown fox jumped over the lazy dog's back"
Debug MD5Fingerprint(@test$, StringByteLength(test$))

Python

Using builtin libraries:

Python 3.x, 2.5 and later 2.x versions
>>> import hashlib
>>> # RFC 1321 test suite:
>>> tests = (
(b"", 'd41d8cd98f00b204e9800998ecf8427e'),
(b"a", '0cc175b9c0f1b6a831c399e269772661'),
(b"abc", '900150983cd24fb0d6963f7d28e17f72'),
(b"message digest", 'f96b697d7cb7938d525a2f31aaf161d0'),
(b"abcdefghijklmnopqrstuvwxyz", 'c3fcd3d76192e4007dfb496cca67e13b'),
(b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", 'd174ab98d277d9f5a5611c2c9f419d9f'),
(b"12345678901234567890123456789012345678901234567890123456789012345678901234567890", '57edf4a22be3c955ac49da2e2107b67a') )
>>> for text, golden in tests: assert hashlib.md5(text).hexdigest() == golden
 
>>>
Python 2.5 and later
>>> import hashlib
>>> print hashlib.md5("The quick brown fox jumped over the lazy dog's back").hexdigest()
e38ca1d920c4b8b8d3946b2c72f01680
Pre-2.5; removed in 3.x
>>> import md5
>>> print md5.md5("The quick brown fox jumped over the lazy dog's back").hexdigest()
e38ca1d920c4b8b8d3946b2c72f01680

R

library(digest)
hexdigest <- digest("The quick brown fox jumped over the lazy dog's back",
algo="md5", serialize=FALSE)

Racket

 
#lang racket
(require file/md5)
 
(md5 "")
(md5 "a")
(md5 "abc")
(md5 "message digest")
(md5 "abcdefghijklmnopqrstuvwxyz")
(md5 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
(md5 "12345678901234567890123456789012345678901234567890123456789012345678901234567890")
 

Output:

#"d41d8cd98f00b204e9800998ecf8427e"
#"0cc175b9c0f1b6a831c399e269772661"
#"900150983cd24fb0d6963f7d28e17f72"
#"f96b697d7cb7938d525a2f31aaf161d0"
#"c3fcd3d76192e4007dfb496cca67e13b"
#"d174ab98d277d9f5a5611c2c9f419d9f"
#"57edf4a22be3c955ac49da2e2107b67a"

REBOL

>> checksum/method "The quick brown fox jumped over the lazy dog" 'md5
== #{08A008A01D498C404B0C30852B39D3B8}

REXX

/*REXX program tests the MD5 procedure (below) as per a test suite the  IETF RFC (1321).*/
msg.1 = /*─────MD5 test suite [from above doc].*/
msg.2 = 'a'
msg.3 = 'abc'
msg.4 = 'message digest'
msg.5 = 'abcdefghijklmnopqrstuvwxyz'
msg.6 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
msg.7 = 12345678901234567890123456789012345678901234567890123456789012345678901234567890
msg.0 = 7 /* [↑] last value doesn't need quotes.*/
do m=1 for msg.0; say /*process each of the seven messages. */
say ' in =' msg.m /*display the in message. */
say 'out =' MD5(msg.m) /* " " out " */
end /*m*/
exit /*stick a fork in it, we're all done. */
/*──────────────────────────────────────────────────────────────────────────────────────*/
MD5: procedure; parse arg !; numeric digits 20 /*insure there's enough decimal digits.*/
a='67452301'x; b="efcdab89"x; c='98badcfe'x; d="10325476"x; x00='0'x; x80="80"x
#=length(!) /*length in bytes of the input message.*/
L=#*8//512; if L<448 then plus=448 - L /*is the length less than 448 ? */
if L>448 then plus=960 - L /* " " " greater " " */
if L=448 then plus=512 /* " " " equal to " */
/* [↓] a little of this, ··· */
$=! || x80 || copies(x00, plus%8 -1)reverse(right(d2c(8 * #), 4, x00)) || '00000000'x
/* [↑] ··· and a little of that.*/
do j=0 to length($) % 64 - 1 /*process the message (lots of steps).*/
a_=a; b_=b; c_=c; d_=d /*save the original values for later.*/
chunk=j*64 /*calculate the size of the chunks. */
do k=1 for 16 /*process the message in chunks. */
 !.k=reverse( substr($, chunk + 1 + 4*(k-1), 4) ) /*magic stuff.*/
end /*k*/ /*────step────*/
a = .part1( a, b, c, d, 0, 7, 3614090360) /*■■■■ 1 ■■■■*/
d = .part1( d, a, b, c, 1, 12, 3905402710) /*■■■■ 2 ■■■■*/
c = .part1( c, d, a, b, 2, 17, 606105819) /*■■■■ 3 ■■■■*/
b = .part1( b, c, d, a, 3, 22, 3250441966) /*■■■■ 4 ■■■■*/
a = .part1( a, b, c, d, 4, 7, 4118548399) /*■■■■ 5 ■■■■*/
d = .part1( d, a, b, c, 5, 12, 1200080426) /*■■■■ 6 ■■■■*/
c = .part1( c, d, a, b, 6, 17, 2821735955) /*■■■■ 7 ■■■■*/
b = .part1( b, c, d, a, 7, 22, 4249261313) /*■■■■ 8 ■■■■*/
a = .part1( a, b, c, d, 8, 7, 1770035416) /*■■■■ 9 ■■■■*/
d = .part1( d, a, b, c, 9, 12, 2336552879) /*■■■■ 10 ■■■■*/
c = .part1( c, d, a, b, 10, 17, 4294925233) /*■■■■ 11 ■■■■*/
b = .part1( b, c, d, a, 11, 22, 2304563134) /*■■■■ 12 ■■■■*/
a = .part1( a, b, c, d, 12, 7, 1804603682) /*■■■■ 13 ■■■■*/
d = .part1( d, a, b, c, 13, 12, 4254626195) /*■■■■ 14 ■■■■*/
c = .part1( c, d, a, b, 14, 17, 2792965006) /*■■■■ 15 ■■■■*/
b = .part1( b, c, d, a, 15, 22, 1236535329) /*■■■■ 16 ■■■■*/
a = .part2( a, b, c, d, 1, 5, 4129170786) /*■■■■ 17 ■■■■*/
d = .part2( d, a, b, c, 6, 9, 3225465664) /*■■■■ 18 ■■■■*/
c = .part2( c, d, a, b, 11, 14, 643717713) /*■■■■ 19 ■■■■*/
b = .part2( b, c, d, a, 0, 20, 3921069994) /*■■■■ 20 ■■■■*/
a = .part2( a, b, c, d, 5, 5, 3593408605) /*■■■■ 21 ■■■■*/
d = .part2( d, a, b, c, 10, 9, 38016083) /*■■■■ 22 ■■■■*/
c = .part2( c, d, a, b, 15, 14, 3634488961) /*■■■■ 23 ■■■■*/
b = .part2( b, c, d, a, 4, 20, 3889429448) /*■■■■ 24 ■■■■*/
a = .part2( a, b, c, d, 9, 5, 568446438) /*■■■■ 25 ■■■■*/
d = .part2( d, a, b, c, 14, 9, 3275163606) /*■■■■ 26 ■■■■*/
c = .part2( c, d, a, b, 3, 14, 4107603335) /*■■■■ 27 ■■■■*/
b = .part2( b, c, d, a, 8, 20, 1163531501) /*■■■■ 28 ■■■■*/
a = .part2( a, b, c, d, 13, 5, 2850285829) /*■■■■ 29 ■■■■*/
d = .part2( d, a, b, c, 2, 9, 4243563512) /*■■■■ 30 ■■■■*/
c = .part2( c, d, a, b, 7, 14, 1735328473) /*■■■■ 31 ■■■■*/
b = .part2( b, c, d, a, 12, 20, 2368359562) /*■■■■ 32 ■■■■*/
a = .part3( a, b, c, d, 5, 4, 4294588738) /*■■■■ 33 ■■■■*/
d = .part3( d, a, b, c, 8, 11, 2272392833) /*■■■■ 34 ■■■■*/
c = .part3( c, d, a, b, 11, 16, 1839030562) /*■■■■ 35 ■■■■*/
b = .part3( b, c, d, a, 14, 23, 4259657740) /*■■■■ 36 ■■■■*/
a = .part3( a, b, c, d, 1, 4, 2763975236) /*■■■■ 37 ■■■■*/
d = .part3( d, a, b, c, 4, 11, 1272893353) /*■■■■ 38 ■■■■*/
c = .part3( c, d, a, b, 7, 16, 4139469664) /*■■■■ 39 ■■■■*/
b = .part3( b, c, d, a, 10, 23, 3200236656) /*■■■■ 40 ■■■■*/
a = .part3( a, b, c, d, 13, 4, 681279174) /*■■■■ 41 ■■■■*/
d = .part3( d, a, b, c, 0, 11, 3936430074) /*■■■■ 42 ■■■■*/
c = .part3( c, d, a, b, 3, 16, 3572445317) /*■■■■ 43 ■■■■*/
b = .part3( b, c, d, a, 6, 23, 76029189) /*■■■■ 44 ■■■■*/
a = .part3( a, b, c, d, 9, 4, 3654602809) /*■■■■ 45 ■■■■*/
d = .part3( d, a, b, c, 12, 11, 3873151461) /*■■■■ 46 ■■■■*/
c = .part3( c, d, a, b, 15, 16, 530742520) /*■■■■ 47 ■■■■*/
b = .part3( b, c, d, a, 2, 23, 3299628645) /*■■■■ 48 ■■■■*/
a = .part4( a, b, c, d, 0, 6, 4096336452) /*■■■■ 49 ■■■■*/
d = .part4( d, a, b, c, 7, 10, 1126891415) /*■■■■ 50 ■■■■*/
c = .part4( c, d, a, b, 14, 15, 2878612391) /*■■■■ 51 ■■■■*/
b = .part4( b, c, d, a, 5, 21, 4237533241) /*■■■■ 52 ■■■■*/
a = .part4( a, b, c, d, 12, 6, 1700485571) /*■■■■ 53 ■■■■*/
d = .part4( d, a, b, c, 3, 10, 2399980690) /*■■■■ 54 ■■■■*/
c = .part4( c, d, a, b, 10, 15, 4293915773) /*■■■■ 55 ■■■■*/
b = .part4( b, c, d, a, 1, 21, 2240044497) /*■■■■ 56 ■■■■*/
a = .part4( a, b, c, d, 8, 6, 1873313359) /*■■■■ 57 ■■■■*/
d = .part4( d, a, b, c, 15, 10, 4264355552) /*■■■■ 58 ■■■■*/
c = .part4( c, d, a, b, 6, 15, 2734768916) /*■■■■ 59 ■■■■*/
b = .part4( b, c, d, a, 13, 21, 1309151649) /*■■■■ 60 ■■■■*/
a = .part4( a, b, c, d, 4, 6, 4149444226) /*■■■■ 61 ■■■■*/
d = .part4( d, a, b, c, 11, 10, 3174756917) /*■■■■ 62 ■■■■*/
c = .part4( c, d, a, b, 2, 15, 718787259) /*■■■■ 63 ■■■■*/
b = .part4( b, c, d, a, 9, 21, 3951481745) /*■■■■ 64 ■■■■*/
a = .a(a_, a); b=.a(b_, b); c=.a(c_, c); d=.a(d_, d)
end /*j*/
 
return c2x( reverse(a) )c2x( reverse(b) )c2x( reverse(c) )c2x( reverse(d) )
/*──────────────────────────────────────────────────────────────────────────────────────*/
.a: return right( d2c( c2d( arg(1) ) + c2d( arg(2) ) ), 4, '0'x)
.h: return bitxor( bitxor( arg(1), arg(2) ), arg(3) )
.i: return bitxor( arg(2), bitor(arg(1), bitxor(arg(3), 'ffffffff'x)))
.f: return bitor( bitand(arg(1),arg(2)), bitand(bitxor(arg(1), 'ffffffff'x), arg(3)))
.g: return bitor( bitand(arg(1),arg(3)), bitand(arg(2), bitxor(arg(3), 'ffffffff'x)))
.Lr: procedure; parse arg _,#; if #==0 then return _ /*left rotate.*/
 ?=x2b(c2x(_)); return x2c( b2x( right(? || left(?, #), length(?) )))
.part1: procedure expose !.; parse arg w,x,y,z,n,m,_; n=n+1
return .a(.Lr(right(d2c(_+c2d(w) +c2d(.f(x,y,z))+c2d(!.n)),4,'0'x),m),x)
.part2: procedure expose !.; parse arg w,x,y,z,n,m,_; n=n+1
return .a(.Lr(right(d2c(_+c2d(w) +c2d(.g(x,y,z))+c2d(!.n)),4,'0'x),m),x)
.part3: procedure expose !.; parse arg w,x,y,z,n,m,_; n=n+1
return .a(.Lr(right(d2c(_+c2d(w) +c2d(.h(x,y,z))+c2d(!.n)),4,'0'x),m),x)
.part4: procedure expose !.; parse arg w,x,y,z,n,m,_; n=n+1
return .a(.Lr(right(d2c(c2d(w) +c2d(.i(x,y,z))+c2d(!.n)+_),4,'0'x),m),x)

output   when using the default (internal) inputs:

 in =
out = D41D8CD98F00B204E9800998ECF8427E

 in = a
out = 0CC175B9C0F1B6A831C399E269772661

 in = abc
out = 900150983CD24FB0D6963F7D28E17F72

 in = message digest
out = F96B697D7CB7938D525A2F31AAF161D0

 in = abcdefghijklmnopqrstuvwxyz
out = C3FCD3D76192E4007DFB496CCA67E13B

 in = ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789
out = D174AB98D277D9F5A5611C2C9F419D9F

 in = 12345678901234567890123456789012345678901234567890123456789012345678901234567890
out = 57EDF4A22BE3C955AC49DA2E2107B67A

RLaB

RLaB has a built-in function hash,

which implements hash functions fn as "md2", "md5", "sha", "sha1", "dss", "dss1" and "ripemd160", for given string vector ss and new-line delimiter nl. The last is here so that a hash of a string vector calculated in RLaB is the same as the hash of the same string vector written to a file.

>> x = "The quick brown fox jumped over the lazy dog's back"
The quick brown fox jumped over the lazy dog's back
 
>> hash("md5", x)
e38ca1d920c4b8b8d3946b2c72f01680

Ring

 
See MD5("my string!") + nl
# output : a83a049fbe50cf7334caa86bf16a3520
 

RPG

Modified from [3]:

**FREE
Ctl-opt MAIN(Main);
Ctl-opt DFTACTGRP(*NO) ACTGRP(*NEW);
 
dcl-pr QDCXLATE EXTPGM('QDCXLATE');
dataLen packed(5 : 0) CONST;
data char(32767) options(*VARSIZE);
conversionTable char(10) CONST;
end-pr;
 
dcl-pr Qc3CalculateHash EXTPROC('Qc3CalculateHash');
inputData pointer value;
inputDataLen int(10) const;
inputDataFormat char(8) const;
algorithmDscr char(16) const;
algorithmFormat char(8) const;
cryptoServiceProvider char(1) const;
cryptoDeviceName char(1) const options(*OMIT);
hash char(64) options(*VARSIZE : *OMIT);
errorCode char(32767) options(*VARSIZE);
end-pr;
 
dcl-c HEX_CHARS CONST('0123456789ABCDEF');
 
dcl-proc Main;
dcl-s inputData char(45);
dcl-s inputDataLen int(10) INZ(0);
dcl-s outputHash char(16);
dcl-s outputHashHex char(32);
dcl-ds algorithmDscr QUALIFIED;
hashAlgorithm int(10) INZ(0);
end-ds;
dcl-ds ERRC0100_NULL QUALIFIED;
bytesProvided int(10) INZ(0); // Leave at zero
bytesAvailable int(10);
end-ds;
 
dow inputDataLen = 0;
DSPLY 'Input: ' '' inputData;
inputData = %trim(inputData);
inputDataLen = %len(%trim(inputData));
DSPLY ('Input=' + inputData);
DSPLY ('InputLen=' + %char(inputDataLen));
if inputDataLen = 0;
DSPLY 'Input must not be blank';
endif;
enddo;
 
// Convert from EBCDIC to ASCII
QDCXLATE(inputDataLen : inputData : 'QTCPASC');
algorithmDscr.hashAlgorithm = 1; // MD5
// Calculate hash
Qc3CalculateHash(%addr(inputData) : inputDataLen : 'DATA0100' : algorithmDscr
 : 'ALGD0500' : '0' : *OMIT : outputHash : ERRC0100_NULL);
// Convert to hex
CVTHC(outputHashHex : outputHash : 32);
DSPLY ('MD5: ' + outputHashHex);
return;
end-proc;
 
// This procedure is actually a MI, but I couldn't get it to bind so I wrote my own version
dcl-proc CVTHC;
dcl-pi *N;
target char(65534) options(*VARSIZE);
srcBits char(32767) options(*VARSIZE) CONST;
targetLen int(10) value;
end-pi;
dcl-s i int(10);
dcl-s lowNibble ind INZ(*OFF);
dcl-s inputOffset int(10) INZ(1);
dcl-ds dataStruct QUALIFIED;
numField int(5) INZ(0);
// IBM i is big-endian
charField char(1) OVERLAY(numField : 2);
end-ds;
 
for i = 1 to targetLen;
if lowNibble;
dataStruct.charField = %BitAnd(%subst(srcBits : inputOffset : 1) : X'0F');
inputOffset += 1;
else;
dataStruct.charField = %BitAnd(%subst(srcBits : inputOffset : 1) : X'F0');
dataStruct.numField /= 16;
endif;
 %subst(target : i : 1) = %subst(HEX_CHARS : dataStruct.numField + 1 : 1);
lowNibble = NOT lowNibble;
endfor;
return;
end-proc;

Note that this implementation converts the input from EBCDIC to ASCII before computing the hash.

Sample output:

 DSPLY  Input:
 abcdefghijklmnopqrstuvwxyz
 DSPLY  Input=abcdefghijklmnopqrstuvwxyz
 DSPLY  InputLen=26
 DSPLY  MD5: C3FCD3D76192E4007DFB496CCA67E13B

Ruby

require 'digest'
Digest::MD5.hexdigest("The quick brown fox jumped over the lazy dog's back")
# => "e38ca1d920c4b8b8d3946b2c72f01680"

Rust

Cargo.toml

 
[dependencies]
rust-crypto = "0.2"
 

src/main.rs

 
extern crate crypto;
 
use crypto::digest::Digest;
use crypto::md5::Md5;
 
fn main() {
let mut sh = Md5::new();
sh.input_str("The quick brown fox jumped over the lazy dog's back");
println!("{}", sh.result_str());
}
 


S-lang

Support for MD5 and SHA-1 are included in the standard "chksum" library:

require("chksum");
print(md5sum("The quick brown fox jumped over the lazy dog's back"));
Output:
"e38ca1d920c4b8b8d3946b2c72f01680"

Scala

object RosettaMD5 extends App {
 
def MD5(s: String): String = {
// Besides "MD5", "SHA-256", and other hashes are available
val m = java.security.MessageDigest.getInstance("MD5").digest(s.getBytes("UTF-8"))
m.map("%02x".format(_)).mkString
}
 
assert("d41d8cd98f00b204e9800998ecf8427e" == MD5(""))
assert("0cc175b9c0f1b6a831c399e269772661" == MD5("a"))
assert("900150983cd24fb0d6963f7d28e17f72" == MD5("abc"))
assert("f96b697d7cb7938d525a2f31aaf161d0" == MD5("message digest"))
assert("c3fcd3d76192e4007dfb496cca67e13b" == MD5("abcdefghijklmnopqrstuvwxyz"))
assert("e38ca1d920c4b8b8d3946b2c72f01680" == MD5("The quick brown fox jumped over the lazy dog's back"))
assert("d174ab98d277d9f5a5611c2c9f419d9f" ==
MD5("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"))
assert("57edf4a22be3c955ac49da2e2107b67a" ==
MD5("12345678901234567890123456789012345678901234567890123456789012345678901234567890"))
import scala.compat.Platform.currentTime
println(s"Successfully completed without errors. [total ${currentTime - executionStart} ms]")
}

Seed7

$ include "seed7_05.s7i";
include "msgdigest.s7i";
 
const proc: main is func
begin
writeln(hex(md5("The quick brown fox jumped over the lazy dog's back")));
end func;
Output:
e38ca1d920c4b8b8d3946b2c72f01680

Sidef

Library: Digest::MD5MD5
var digest = frequire('Digest::MD5');
say digest.md5_hex("The quick brown fox jumped over the lazy dog's back");

The same in OO manner

var md5 = require('Digest::MD5').new;
md5.add("The quick brown fox jumped over the lazy dog's back");
say md5.hexdigest;

Slate

You must load the code in 'src/lib/md5.slate'.

'The quick brown fox jumped over the lazy dog\'s back' md5String. "==> 'e38ca1d920c4b8b8d3946b2c72f01680'"

Smalltalk

Using utility classes:

Works with: GNU Smalltalk
PackageLoader fileInPackage: 'Digest' !
(MD5 hexDigestOf: 'The quick brown fox jumped over the lazy dog''s back') displayNl.
Works with: Smalltalk/X
(MD5Stream hashValueOf: 'The quick brown fox jumped over the lazy dog''s back') printCR.

SQL

Works with: MySQL
SELECT MD5('The quick brown fox jumped over the lazy dog\'s back')

Suneido

Md5('The quick brown fox jumped over the lazy dog\'s back')

Tcl

Library: Tcllib (Package: md5)
package require md5
puts [md5::md5 -hex "The quick brown fox jumped over the lazy dog's back"]
# ==> E38CA1D920C4B8B8D3946B2C72F01680

UNIX Shell

Shells execute system commands (such as md5sum, in this case). We must pass "-n" to echo, so no trailing newline is appended, which would change the MD5-hash.

GNU coreutils has md5sum:

echo -n "The quick brown fox jumped over the lazy dog's back" | md5sum

Several BSD systems have md5:

echo -n "The quick brown fox jumped over the lazy dog's back" | md5
Library: OpenSSL
echo -n "The quick brown fox jumped over the lazy dog's back" |
openssl md5 | sed 's/.*= //'

zkl

md5 is a built in utility

Utils.MD5.calc("message digest"); //-->"f96b697d7cb7938d525a2f31aaf161d0"
Utils.MD5.calc("abcdefghijklmnopqrstuvwxyz"); //-->"c3fcd3d76192e4007dfb496cca67e13b"

http://en.wikipedia.org/wiki/MD5