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OpenWebNet password

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

Calculate the password requested by ethernet gateways from the Legrand / Bticino MyHome OpenWebNet home automation system when the user's ip address is not in the gateway's whitelist

Note: Factory default password is '12345'. Changing it is highly recommended !

conversation goes as follows

← *#*1##
→ *99*0##
← *#603356072##

at which point a password should be sent back, calculated from the "password open" that is set in the gateway, and the nonce that was just sent

→ *#25280520##
← *#*1##

D[edit]

Translation of: Python
import std.stdio, std.string, std.conv, std.ascii, std.algorithm;
 
ulong ownCalcPass(in ulong password, in string nonce)
pure nothrow @safe @nogc
in {
assert(nonce.representation.all!isDigit);
} body {
enum ulong m_1 = 0x_FFFF_FFFF_UL;
enum ulong m_8 = 0x_FFFF_FFF8_UL;
enum ulong m_16 = 0x_FFFF_FFF0_UL;
enum ulong m_128 = 0x_FFFF_FF80_UL;
enum ulong m_16777216 = 0X_FF00_0000_UL;
 
auto flag = true;
ulong num1 = 0, num2 = 0;
 
foreach (immutable char c; nonce) {
num1 &= m_1;
num2 &= m_1;
 
switch (c) {
case '0':
num1 = num2;
break;
case '1':
if (flag)
num2 = password;
flag = false;
num1 = num2 & m_128;
num1 = num1 >> 7;
num2 = num2 << 25;
num1 = num1 + num2;
break;
case '2':
if (flag)
num2 = password;
flag = false;
num1 = num2 & m_16;
num1 = num1 >> 4;
num2 = num2 << 28;
num1 = num1 + num2;
break;
case '3':
if (flag)
num2 = password;
flag = false;
num1 = num2 & m_8;
num1 = num1 >> 3;
num2 = num2 << 29;
num1 = num1 + num2;
break;
case '4':
if (flag)
num2 = password;
flag = false;
num1 = num2 << 1;
num2 = num2 >> 31;
num1 = num1 + num2;
break;
case '5':
if (flag)
num2 = password;
flag = false;
num1 = num2 << 5;
num2 = num2 >> 27;
num1 = num1 + num2;
break;
case '6':
if (flag)
num2 = password;
flag = false;
num1 = num2 << 12;
num2 = num2 >> 20;
num1 = num1 + num2;
break;
case '7':
if (flag)
num2 = password;
flag = false;
num1 = num2 & 0xFF00UL;
num1 = num1 + ((num2 & 0xFFUL) << 24);
num1 = num1 + ((num2 & 0xFF0000UL) >> 16);
num2 = (num2 & m_16777216) >> 8;
num1 = num1 + num2;
break;
case '8':
if (flag)
num2 = password;
flag = false;
num1 = num2 & 0xFFFFUL;
num1 = num1 << 16;
num1 = num1 + (num2 >> 24);
num2 = num2 & 0xFF0000UL;
num2 = num2 >> 8;
num1 = num1 + num2;
break;
case '9':
if (flag)
num2 = password;
flag = false;
num1 = ~num2;
break;
default: // Impossible if contracts are active.
assert(0, "Non-digit in nonce");
}
 
num2 = num1;
}
 
return num1 & m_1;
}
 
void ownTestCalcPass(in string sPassword, in string nonce, in ulong expected)
in {
assert(sPassword.representation.all!isDigit);
assert(nonce.representation.all!isDigit);
} body {
immutable password = sPassword.to!ulong;
immutable res = ownCalcPass(password, nonce);
immutable m = format("%d %s %d %d", password, nonce, res, expected);
writeln((res == expected) ? "PASS " : "FAIL ", m);
}
 
void main() {
ownTestCalcPass("12345", "603356072", 25280520UL);
ownTestCalcPass("12345", "410501656", 119537670UL);
}
Output:
PASS 12345 603356072 25280520 25280520
PASS 12345 410501656 119537670 119537670

Delphi[edit]

Translation of: Go
 
program OpenWebNet_password;
 
{$APPTYPE CONSOLE}
 
uses
System.SysUtils;
 
function ownCalcPass(password, nonce: string): Cardinal;
begin
var start := True;
var num1 := 0;
var num2 := num1;
var i := password.ToInteger();
var pwd := i;
 
for var c in nonce do
begin
if c <> '0' then
begin
if start then
num2 := pwd;
start := False;
end;
 
case c of
'1':
begin
num1 := (num2 and $FFFFFF80) shr 7;
num2 := num2 shl 25;
end;
'2':
begin
num1 := (num2 and $FFFFFFF0) shr 4;
num2 := num2 shl 28;
end;
'3':
begin
num1 := (num2 and $FFFFFFF8) shr 3;
num2 := num2 shl 29;
end;
'4':
begin
num1 := num2 shl 1;
num2 := num2 shr 31;
end;
'5':
begin
num1 := num2 shl 5;
num2 := num2 shr 27;
end;
'6':
begin
num1 := num2 shl 12;
num2 := num2 shr 20;
end;
'7':
begin
var num3 := num2 and $0000FF00;
var num4 := ((num2 and $000000FF) shl 24) or ((num2 and $00FF0000) shr 16);
num1 := num3 or num4;
num2 := (num2 and $FF000000) shr 8;
end;
'8':
begin
;
num1 := (num2 and $0000FFFF) shl 16 or (num2 shr 24);
num2 := (num2 and $00FF0000) shr 8;
end;
'9':
begin
num1 := not num2;
end;
else
num1 := num2;
end;
 
num1 := num1 and $FFFFFFFF;
num2 := num2 and $FFFFFFFF;
if (c <> '0') and (c <> '9') then
num1 := num1 or num2;
num2 := num1;
end;
Result := num1;
end;
 
function TestPasswordCalc(Password, nonce: string; expected: Cardinal): Integer;
begin
var res := ownCalcPass(Password, nonce);
var m := format('%s  %s  %-10u  %-10u', [Password, nonce, res, expected]);
if res = expected then
writeln('PASS ' + m)
else
writeln('FAIL ' + m);
end;
 
begin
testPasswordCalc('12345', '603356072', 25280520);
testPasswordCalc('12345', '410501656', 119537670);
testPasswordCalc('12345', '630292165', 4269684735);
readln;
end.

Go[edit]

Translation of: Python
package main
 
import (
"fmt"
"strconv"
)
 
func ownCalcPass(password, nonce string) uint32 {
start := true
num1 := uint32(0)
num2 := num1
i, _ := strconv.Atoi(password)
pwd := uint32(i)
for _, c := range nonce {
if c != '0' {
if start {
num2 = pwd
}
start = false
}
switch c {
case '1':
num1 = (num2 & 0xFFFFFF80) >> 7
num2 = num2 << 25
case '2':
num1 = (num2 & 0xFFFFFFF0) >> 4
num2 = num2 << 28
case '3':
num1 = (num2 & 0xFFFFFFF8) >> 3
num2 = num2 << 29
case '4':
num1 = num2 << 1
num2 = num2 >> 31
case '5':
num1 = num2 << 5
num2 = num2 >> 27
case '6':
num1 = num2 << 12
num2 = num2 >> 20
case '7':
num3 := num2 & 0x0000FF00
num4 := ((num2 & 0x000000FF) << 24) | ((num2 & 0x00FF0000) >> 16)
num1 = num3 | num4
num2 = (num2 & 0xFF000000) >> 8
case '8':
num1 = (num2&0x0000FFFF)<<16 | (num2 >> 24)
num2 = (num2 & 0x00FF0000) >> 8
case '9':
num1 = ^num2
default:
num1 = num2
}
 
num1 &= 0xFFFFFFFF
num2 &= 0xFFFFFFFF
if c != '0' && c != '9' {
num1 |= num2
}
num2 = num1
}
return num1
}
 
func testPasswordCalc(password, nonce string, expected uint32) {
res := ownCalcPass(password, nonce)
m := fmt.Sprintf("%s  %s  %-10d  %-10d", password, nonce, res, expected)
if res == expected {
fmt.Println("PASS", m)
} else {
fmt.Println("FAIL", m)
}
}
 
func main() {
testPasswordCalc("12345", "603356072", 25280520)
testPasswordCalc("12345", "410501656", 119537670)
testPasswordCalc("12345", "630292165", 4269684735)
}
Output:
PASS 12345  603356072  25280520    25280520  
PASS 12345  410501656  119537670   119537670 
PASS 12345  630292165  4269684735  4269684735

JavaScript[edit]

 
function calcPass (pass, nonce) {
var flag = true;
var num1 = 0x0;
var num2 = 0x0;
var password = parseInt(pass, 10);
 
for (var c in nonce) {
c = nonce[c];
if (c!='0') {
if (flag) num2 = password;
flag = false;
}
switch (c) {
case '1':
num1 = num2 & 0xFFFFFF80;
num1 = num1 >>> 7;
num2 = num2 << 25;
num1 = num1 + num2;
break;
case '2':
num1 = num2 & 0xFFFFFFF0;
num1 = num1 >>> 4;
num2 = num2 << 28;
num1 = num1 + num2;
break;
case '3':
num1 = num2 & 0xFFFFFFF8;
num1 = num1 >>> 3;
num2 = num2 << 29;
num1 = num1 + num2;
break;
case '4':
num1 = num2 << 1;
num2 = num2 >>> 31;
num1 = num1 + num2;
break;
case '5':
num1 = num2 << 5;
num2 = num2 >>> 27;
num1 = num1 + num2;
break;
case '6':
num1 = num2 << 12;
num2 = num2 >>> 20;
num1 = num1 + num2;
break;
case '7':
num1 = num2 & 0x0000FF00;
num1 = num1 + (( num2 & 0x000000FF ) << 24 );
num1 = num1 + (( num2 & 0x00FF0000 ) >>> 16 );
num2 = ( num2 & 0xFF000000 ) >>> 8;
num1 = num1 + num2;
break;
case '8':
num1 = num2 & 0x0000FFFF;
num1 = num1 << 16;
num1 = num1 + ( num2 >>> 24 );
num2 = num2 & 0x00FF0000;
num2 = num2 >>> 8;
num1 = num1 + num2;
break;
case '9':
num1 = ~num2;
break;
case '0':
num1 = num2;
break;
}
num2 = num1;
}
return (num1 >>> 0).toString();
}
 
exports.calcPass = calcPass;
 
console.log ('openpass initialization');
function testCalcPass (pass, nonce, expected) {
var res = calcPass (pass, nonce);
var m = pass + ' ' + nonce + ' ' + res + ' ' + expected;
if (res == parseInt(expected, 10))
console.log ('PASS '+m);
else
console.log ('FAIL '+m);
}
 
testCalcPass ('12345', '603356072', '25280520');
testCalcPass ('12345', '410501656', '119537670');
testCalcPass ('12345', '630292165', '4269684735');
testCalcPass ('12345', '523781130', '537331200');
 

Julia[edit]

Passes all tests.

function calcpass(passwd, nonce::String)
startflag = true
n1 = 0
n2 = 0
password = parse(Int, passwd)
dact = Dict(
'1' => () -> begin n1 = (n2 & 0xffffff80) >> 7; n2 <<= 25 end,
'2' => () -> begin n1 = (n2 & 0xfffffff0) >> 4; n2 <<= 28 end,
'3' => () -> begin n1 = (n2 & 0xfffffff8) >> 3; n2 <<= 29 end,
'4' => () -> begin n1 = n2 << 1; n2 >>= 31 end,
'5' => () -> begin n1 = n2 << 5; n2 >>= 27 end,
'6' => () -> begin n1 = n2 << 12; n2 >>= 20 end,
'7' => () -> begin n1 = (n2 & 0x0000ff00) | ((n2 & 0x000000ff) << 24) |
((n2 & 0x00ff0000) >> 16); n2 = (n2 & 0xff000000) >> 8 end,
'8' => () -> begin n1 = ((n2 & 0x0000ffff) << 16) | (n2 >> 24);
n2 = (n2 & 0x00ff0000) >> 8 end,
'9' => () -> begin n1 = ~n2 end)
 
for c in nonce
if !haskey(dact, c)
n1 = n2
else
if startflag
n2 = password
end
startflag = false
dact[c]()
n1 &= 0xffffffff
n2 &= 0xffffffff
if c != '9'
n1 |= n2
end
end
n2 = n1
end
n1
end
 
function testcalcpass()
tdata = [["12345", "603356072", "25280520"], ["12345", "410501656", "119537670"],
["12345", "630292165", "4269684735"], ["12345", "523781130", "537331200"]]
for td in tdata
pf = calcpass(td[1], td[2]) == parse(Int, td[3]) ? "Passes test." : "Fails test."
println("Calculating pass for [$(td[1]), $(td[2])] = $(td[3]): $pf")
end
end
 
testcalcpass()
 

Kotlin[edit]

Translation of: Python
// version 1.1.51
 
fun ownCalcPass(password: Long, nonce: String): Long {
val m1 = 0xFFFF_FFFFL
val m8 = 0xFFFF_FFF8L
val m16 = 0xFFFF_FFF0L
val m128 = 0xFFFF_FF80L
val m16777216 = 0xFF00_0000L
 
var flag = true
var num1 = 0L
var num2 = 0L
 
for (c in nonce) {
num2 = num2 and m1
 
when (c) {
'1' -> {
if (flag) num2 = password
flag = false
num1 = num2 and m128
num1 = num1 ushr 7
num2 = num2 shl 25
num1 = num1 + num2
}
 
'2' -> {
if (flag) num2 = password
flag = false
num1 = num2 and m16
num1 = num1 ushr 4
num2 = num2 shl 28
num1 = num1 + num2
}
 
'3' -> {
if (flag) num2 = password
flag = false
num1 = num2 and m8
num1 = num1 ushr 3
num2 = num2 shl 29
num1 = num1 + num2
}
 
'4' -> {
if (flag) num2 = password
flag = false
num1 = num2 shl 1
num2 = num2 ushr 31
num1 = num1 + num2
}
 
'5' -> {
if (flag) num2 = password
flag = false
num1 = num2 shl 5
num2 = num2 ushr 27
num1 = num1 + num2
}
 
'6' -> {
if (flag) num2 = password
flag = false
num1 = num2 shl 12
num2 = num2 ushr 20
num1 = num1 + num2
}
 
'7' -> {
if (flag) num2 = password
flag = false
num1 = num2 and 0xFF00L
num1 = num1 + ((num2 and 0xFFL) shl 24)
num1 = num1 + ((num2 and 0xFF0000L) ushr 16)
num2 = (num2 and m16777216) ushr 8
num1 = num1 + num2
}
 
'8' -> {
if (flag) num2 = password
flag = false
num1 = num2 and 0xFFFFL
num1 = num1 shl 16
num1 = num1 + (num2 ushr 24)
num2 = num2 and 0xFF0000L
num2 = num2 ushr 8
num1 = num1 + num2
}
 
'9' -> {
if (flag) num2 = password
flag = false
num1 = num2.inv()
}
 
else -> num1 = num2
}
num2 = num1
}
return num1 and m1
}
 
fun ownTestCalcPass(passwd: String, nonce: String, expected: Long) {
val res = ownCalcPass(passwd.toLong(), nonce)
val m = "$passwd $nonce $res $expected"
println(if (res == expected) "PASS $m" else "FAIL $m")
}
 
fun main(args: Array<String>) {
ownTestCalcPass("12345", "603356072", 25280520)
ownTestCalcPass("12345", "410501656", 119537670)
}
Output:
PASS  12345  603356072  25280520  25280520
PASS  12345  410501656  119537670  119537670

Nim[edit]

Translation of: Python
import bitops, strutils
 
func ownCalcPass(password, nonce: string): uint32 =
 
var start = true
 
for c in nonce:
if c != '0' and start:
result = parseInt(password).uint32
start = false
case c
of '0':
discard
of '1':
result = result.rotateRightBits(7)
of '2':
result = result.rotateRightBits(4)
of '3':
result = result.rotateRightBits(3)
of '4':
result = result.rotateLeftBits(1)
of '5':
result = result.rotateLeftBits(5)
of '6':
result = result.rotateLeftBits(12)
of '7':
result = (result and 0x0000FF00) or result shl 24 or
(result and 0x00FF0000) shr 16 or (result and 0xFF000000u32) shr 8
of '8':
result = result shl 16 or result shr 24 or (result and 0x00FF0000) shr 8
of '9':
result = not result
else:
raise newException(ValueError, "non-digit in nonce.")
 
 
when isMainModule:
 
proc testPasswordCalc(password, nonce: string; expected: uint32) =
 
let res = ownCalcPass(password, nonce)
let m = "$# $# $# $#".format(password, nonce, res, expected)
echo if res == expected: "PASS " else: "FAIL ", m
 
testPasswordCalc("12345", "603356072", 25280520u32)
testPasswordCalc("12345", "410501656", 119537670u32)
testPasswordCalc("12345", "630292165", 4269684735u32)
Output:
PASS 12345 603356072 25280520 25280520
PASS 12345 410501656 119537670 119537670
PASS 12345 630292165 4269684735 4269684735

Perl[edit]

Translation of: Raku
use strict;
use warnings;
use feature 'say';
use integer; # required solely for 2's complement operation: $n1 = ~$n2
 
sub own_password {
my($password, $nonce) = @_;
my $n1 = 0;
my $n2 = $password;
for my $d (split //, $nonce) {
if ($d == 1) {
$n1 = ($n2 & 0xFFFFFF80) >> 7;
$n2 <<= 25;
} elsif ($d == 2) {
$n1 = ($n2 & 0xFFFFFFF0) >> 4;
$n2 <<= 28;
} elsif ($d == 3) {
$n1 = ($n2 & 0xFFFFFFF8) >> 3;
$n2 <<= 29;
} elsif ($d == 4) {
$n1 = $n2 << 1;
$n2 >>= 31;
} elsif ($d == 5) {
$n1 = $n2 << 5;
$n2 >>= 27;
} elsif ($d == 6) {
$n1 = $n2 << 12;
$n2 >>= 20;
} elsif ($d == 7) {
$n1 = ($n2 & 0x0000FF00) | (($n2 & 0x000000FF) << 24) | (($n2 & 0x00FF0000) >> 16);
$n2 = ($n2 & 0xFF000000) >> 8;
} elsif ($d == 8) {
$n1 = ($n2 & 0x0000FFFF) << 16 | $n2 >> 24;
$n2 = ($n2 & 0x00FF0000) >> 8;
} elsif ($d == 9) {
$n1 = ~$n2;
} else {
$n1 = $n2
}
$n1 = ($n1 | $n2) & 0xFFFFFFFF if $d != 0 and $d != 9;
$n2 = $n1;
}
$n1
}
 
say own_password( 12345, 603356072 );
say own_password( 12345, 410501656 );
say own_password( 12345, 630292165 );
Output:
25280520
119537670
4269684735

Phix[edit]

function unsigned(atom n)
atom m4 = allocate(8)
poke4(m4,n)
n = peek4u(m4)
free(m4)
return n
end function
 
function ownCalcPass(atom pwd, string nonce)
bool start = true
atom num1 = 0,
num2 = 0
for i=1 to length(nonce) do
integer c = nonce[i]
if c!='0' and start then
num2 = pwd
start = false
end if
switch c do
case '1': num1 = shift_bits(num2,7)
num2 = shift_bits(num2,-25)
case '2': num1 = shift_bits(num2,4)
num2 = shift_bits(num2,-28)
case '3': num1 = shift_bits(num2,3)
num2 = shift_bits(num2,-29)
case '4': num1 = shift_bits(num2,-1)
num2 = shift_bits(num2,31)
case '5': num1 = shift_bits(num2,-5)
num2 = shift_bits(num2,27)
case '6': num1 = shift_bits(num2,-12)
num2 = shift_bits(num2,20)
case '7': num1 = or_bits(and_bits(num2,0x0000FF00),
or_bits(shift_bits(and_bits(num2,0x000000FF),-24),
shift_bits(and_bits(num2,0x00FF0000),16)))
num2 = shift_bits(and_bits(num2,0xFF000000),8)
case '8': num1 = or_bits(shift_bits(and_bits(num2,0x0000FFFF),-16),
shift_bits(num2,24))
num2 = shift_bits(and_bits(num2,0x00FF0000),8)
case '9': num1 = not_bits(num2)
default: num1 = num2
end switch
if c!='0' and c!='9' then
num1 = or_bits(num1,num2)
end if
num2 = num1
end for
return unsigned(num1)
end function
 
procedure testPasswordCalc(atom pwd, string nonce, atom expected)
atom res := ownCalcPass(pwd, nonce)
string pf = iff(res=expected?"PASS":"FAIL")
printf(1,"%s  %d  %s  %-10d  %-10d\n", {pf, pwd, nonce, res, expected})
end procedure
 
testPasswordCalc(12345, "603356072", 25280520)
testPasswordCalc(12345, "410501656", 119537670)
testPasswordCalc(12345, "630292165", 4269684735)
testPasswordCalc(12345, "523781130", 537331200)
Output:
PASS  12345  603356072  25280520    25280520
PASS  12345  410501656  119537670   119537670
PASS  12345  630292165  4269684735  4269684735
PASS  12345  523781130  537331200   537331200

PHP[edit]

function ownCalcPass($password, $nonce) {
$msr = 0x7FFFFFFF;
$m_1 = (int)0xFFFFFFFF;
$m_8 = (int)0xFFFFFFF8;
$m_16 = (int)0xFFFFFFF0;
$m_128 = (int)0xFFFFFF80;
$m_16777216 = (int)0xFF000000;
$flag = True;
$num1 = 0;
$num2 = 0;
 
foreach (str_split($nonce) as $c) {
$num1 = $num1 & $m_1;
$num2 = $num2 & $m_1;
if ($c == '1') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 & $m_128;
$num1 = $num1 >> 1;
$num1 = $num1 & $msr;
$num1 = $num1 >> 6;
$num2 = $num2 << 25;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '2') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 & $m_16;
$num1 = $num1 >> 1;
$num1 = $num1 & $msr;
$num1 = $num1 >> 3;
$num2 = $num2 << 28;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '3') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 & $m_8;
$num1 = $num1 >> 1;
$num1 = $num1 & $msr;
$num1 = $num1 >> 2;
$num2 = $num2 << 29;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '4') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 << 1;
$num2 = $num2 >> 1;
$num2 = $num2 & $msr;
$num2 = $num2 >> 30;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '5') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 << 5;
$num2 = $num2 >> 1;
$num2 = $num2 & $msr;
$num2 = $num2 >> 26;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '6') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 << 12;
$num2 = $num2 >> 1;
$num2 = $num2 & $msr;
$num2 = $num2 >> 19;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '7') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 & 0xFF00;
$num1 = $num1 + (( $num2 & 0xFF ) << 24 );
$num1 = $num1 + (( $num2 & 0xFF0000 ) >> 16 );
$num2 = $num2 & $m_16777216;
$num2 = $num2 >> 1;
$num2 = $num2 & $msr;
$num2 = $num2 >> 7;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '8') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = $num2 & 0xFFFF;
$num1 = $num1 << 16;
$numx = $num2 >> 1;
$numx = $numx & $msr;
$numx = $numx >> 23;
$num1 = $num1 + $numx;
$num2 = $num2 & 0xFF0000;
$num2 = $num2 >> 1;
$num2 = $num2 & $msr;
$num2 = $num2 >> 7;
$num1 = $num1 + $num2;
$flag = False;
} elseif ($c == '9') {
$length = !$flag;
if (!$length) {
$num2 = $password;
}
$num1 = ~(int)$num2;
$flag = False;
} else {
$num1 = $num2;
}
$num2 = $num1;
}
return sprintf('%u', $num1 & $m_1);
}
 

Python[edit]

 
def ownCalcPass (password, nonce, test=False) :
start = True
num1 = 0
num2 = 0
password = int(password)
if test:
print("password: %08x" % (password))
for c in nonce :
if c != "0":
if start:
num2 = password
start = False
if test:
print("c: %s num1: %08x num2: %08x" % (c, num1, num2))
if c == '1':
num1 = (num2 & 0xFFFFFF80) >> 7
num2 = num2 << 25
elif c == '2':
num1 = (num2 & 0xFFFFFFF0) >> 4
num2 = num2 << 28
elif c == '3':
num1 = (num2 & 0xFFFFFFF8) >> 3
num2 = num2 << 29
elif c == '4':
num1 = num2 << 1
num2 = num2 >> 31
elif c == '5':
num1 = num2 << 5
num2 = num2 >> 27
elif c == '6':
num1 = num2 << 12
num2 = num2 >> 20
elif c == '7':
num1 = num2 & 0x0000FF00 | (( num2 & 0x000000FF ) << 24 ) | (( num2 & 0x00FF0000 ) >> 16 )
num2 = ( num2 & 0xFF000000 ) >> 8
elif c == '8':
num1 = (num2 & 0x0000FFFF) << 16 | ( num2 >> 24 )
num2 = (num2 & 0x00FF0000) >> 8
elif c == '9':
num1 = ~num2
else :
num1 = num2
 
num1 &= 0xFFFFFFFF
num2 &= 0xFFFFFFFF
if (c not in "09"):
num1 |= num2
if test:
print(" num1: %08x num2: %08x" % (num1, num2))
num2 = num1
return num1
 
def test_passwd_calc(passwd, nonce, expected):
res = ownCalcPass(passwd, nonce, False)
m = passwd+' '+nonce+' '+str(res)+' '+str(expected)
if res == int(expected) :
print('PASS '+m)
else :
print('FAIL '+m)
 
if __name__ == '__main__':
test_passwd_calc('12345','603356072','25280520')
test_passwd_calc('12345','410501656','119537670')
test_passwd_calc('12345','630292165','4269684735')
 
 

Racket[edit]

Translation of: Python
(followed by some aggressive refactoring)
#lang racket/base
(define (32-bit-truncate n)
(bitwise-and n #xFFFFFFFF))
 
(define (own-calc-pass password-string nonce)
(define-values (num-1 flag)
(for/fold ((num-1 0) (flag #t))
((c (in-string nonce)))
(let* ((num-1 (32-bit-truncate num-1))
(num-2 (if flag (string->number password-string) num-1)))
 
(define (and-right-left-add mask right left)
(values (+ (arithmetic-shift (bitwise-and num-2 mask) (- right))
(arithmetic-shift num-2 left))
#f))
 
(define (left-right-add left right)
(values (+ (arithmetic-shift num-2 left) (arithmetic-shift num-2 (- right))) #f))
 
(define (stage-7)
(values (+ (+ (+ (bitwise-and num-2 #xff00)
(arithmetic-shift (bitwise-and num-2 #xff) 24))
(arithmetic-shift (bitwise-and num-2 #xff0000) -16))
(arithmetic-shift (bitwise-and num-2 #xFF000000) -8))
#f))
 
(define (stage-8)
(values (+ (+ (arithmetic-shift (bitwise-and num-2 #xffff) 16)
(arithmetic-shift num-2 -24))
(arithmetic-shift (bitwise-and num-2 #xff0000) -8))
#f))
 
(define (stage-9) (values (bitwise-not num-2) #f))
 
(case c
([#\1] (and-right-left-add #xFFFFFF80 7 25))
([#\2] (and-right-left-add #xFFFFFFF0 4 28))
([#\3] (and-right-left-add #xFFFFFFF8 3 29))
([#\4] (left-right-add 1 31))
([#\5] (left-right-add 5 27))
([#\6] (left-right-add 12 20))
([#\7] (stage-7))
([#\8] (stage-8))
([#\9] (stage-9))
(else (values num-1 flag))))))
(32-bit-truncate num-1))
 
(module+ test
(require rackunit)
 
(define (own-test-calc-pass passwd nonce expected)
(let* ((res (own-calc-pass passwd nonce))
(msg (format "~a ~a ~a ~a" passwd nonce res expected)))
(string-append (if (= res expected) "PASS" "FAIL") " " msg)))
 
 
(own-test-calc-pass "12345" "603356072" 25280520)
(own-test-calc-pass "12345" "410501656" 119537670))

Raku[edit]

(formerly Perl 6)

Raku doesn't really have good support for unsigned fixed bit integers yet so emulating them with regular Ints and bitmasks.

sub own-password (Int $password, Int $nonce) {
my int $n1 = 0;
my int $n2 = $password;
for $nonce.comb {
given $_ {
when 1 {
$n1 = $n2 +& 0xFFFFFF80 +> 7;
$n2 +<= 25;
}
when 2 {
$n1 = $n2 +& 0xFFFFFFF0 +> 4;
$n2 +<= 28;
}
when 3 {
$n1 = $n2 +& 0xFFFFFFF8 +> 3;
$n2 +<= 29;
}
when 4 {
$n1 = $n2 +< 1;
$n2 +>= 31;
}
when 5 {
$n1 = $n2 +< 5;
$n2 +>= 27;
}
when 6 {
$n1 = $n2 +< 12;
$n2 +>= 20;
}
when 7 {
$n1 = $n2 +& 0x0000FF00 +| ($n2 +& 0x000000FF +< 24) +| ($n2 +& 0x00FF0000 +> 16);
$n2 = $n2 +& 0xFF000000 +> 8;
}
when 8 {
$n1 = $n2 +& 0x0000FFFF +< 16 +| $n2 +> 24;
$n2 = $n2 +& 0x00FF0000 +> 8;
}
when 9 { $n1 = +^$n2 }
default { $n1 = $n2 }
}
given $_ {
when 0 {}
when 9 {}
default { $n1 = ($n1 +| $n2) +& 0xFFFFFFFF }
}
$n2 = $n1;
}
$n1
}
 
say own-password( 12345, 603356072 );
say own-password( 12345, 410501656 );
say own-password( 12345, 630292165 );
Output:
25280520
119537670
4269684735

Swift[edit]

 
func openAuthenticationResponse(_password: String, operations: String) -> String? {
var num1 = UInt32(0)
var num2 = UInt32(0)
var start = true
let password = UInt32(_password)!
for c in operations {
if (c != "0") {
if start {
num2 = password
}
start = false
}
switch c {
case "1":
num1 = (num2 & 0xffffff80) >> 7
num2 = num2 << 25
case "2":
num1 = (num2 & 0xfffffff0) >> 4
num2 = num2 << 28
case "3":
num1 = (num2 & 0xfffffff8) >> 3
num2 = num2 << 29
case "4":
num1 = num2 << 1
num2 = num2 >> 31
case "5":
num1 = num1 << 5
num2 = num2 >> 27
case "6":
num1 = num2 << 12
num2 = num2 >> 20
case "7":
num1 = (num2 & 0x0000ff00) | ((num2 & 0x000000ff) << 24) | ((num2 & 0x00ff0000) >> 16)
num2 = (num2 & 0xff000000) >> 8
case "8":
num1 = ((num2 & 0x0000ffff) << 16) | (num2 >> 24)
num2 = (num2 & 0x00ff0000) >> 8
case "9":
num1 = ~num2
case "0":
num1 = num2
default:
print("unexpected char \(c)")
return nil
}
if (c != "9") && (c != "0") {
num1 |= num2
}
num2 = num1
}
return String(num1)
}
 

Wren[edit]

Translation of: Python
Library: Wren-fmt
import "/fmt" for Fmt
 
var ownCalcPass = Fn.new { |password, nonce|
var start = true
var num1 = 0
var num2 = 0
var pwd = Num.fromString(password)
for (c in nonce) {
if (c != "0") {
if (start) num2 = pwd
start = false
}
if (c == "1") {
num1 = (num2 & 0xFFFFFF80) >> 7
num2 = num2 << 25
} else if (c == "2") {
num1 = (num2 & 0xFFFFFFF0) >> 4
num2 = num2 << 28
} else if (c == "3") {
num1 = (num2 & 0xFFFFFFF8) >> 3
num2 = num2 << 29
} else if (c == "4") {
num1 = num2 << 1
num2 = num2 >> 31
} else if (c == "5") {
num1 = num2 << 5
num2 = num2 >> 27
} else if (c == "6") {
num1 = num2 << 12
num2 = num2 >> 20
} else if (c == "7") {
var num3 = num2 & 0x0000FF00
var num4 = ((num2 & 0x000000FF) << 24) | ((num2 & 0x00FF0000) >> 16)
num1 = num3 | num4
num2 = (num2 & 0xFF000000) >> 8
} else if (c == "8") {
num1 = (num2&0x0000FFFF)<<16 | (num2 >> 24)
num2 = (num2 & 0x00FF0000) >> 8
} else if (c == "9") {
num1 = ~num2
} else {
num1 = num2
}
num1 = num1 & 0xFFFFFFFF
num2 = num2 & 0xFFFFFFFF
if (c != "0" && c != "9") num1 = num1 | num2
num2 = num1
}
return num1
}
 
var testPasswordCalc = Fn.new { |password, nonce, expected|
var res = ownCalcPass.call(password, nonce)
var m = Fmt.swrite("$s $s $-10d $-10d", password, nonce, res, expected)
if (res == expected) {
System.print("PASS %(m)")
} else {
System.print("FAIL %(m)")
}
}
 
testPasswordCalc.call("12345", "603356072", 25280520)
testPasswordCalc.call("12345", "410501656", 119537670)
testPasswordCalc.call("12345", "630292165", 4269684735)
Output:
PASS 12345  603356072  25280520    25280520  
PASS 12345  410501656  119537670   119537670 
PASS 12345  630292165  4269684735  4269684735