OpenWebNet password: Difference between revisions
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PASS 12345 410501656 119537670 119537670
PASS 12345 630292165 4269684735 4269684735
</pre>
=={{header|Java}}==
<syntaxhighlight lang="java">
public final class OpenWebNetPassword {
public static void main(String[] aArgs) {
ownTestCalcPass("12345", "603356072", 25280520);
ownTestCalcPass("12345", "410501656", 119537670);
}
private static void ownTestCalcPass(String password, String nonce, long expected) {
long result = ownCalcPass(Long.valueOf(password), nonce);
String message = password + " " + nonce + " " + result + " " + expected;
System.out.println( ( result == expected ) ? "PASS " + message : "FAIL " + message );
}
private static long ownCalcPass(long password, String nonce) {
final long m1 = 0xFFFF_FFFFL;
final long m8 = 0xFFFF_FFF8L;
final long m16 = 0xFFFF_FFF0L;
final long m128 = 0xFFFF_FF80L;
final long m16777216 = 0xFF00_0000L;
boolean flag = true;
long number1 = 0;
long number2 = 0;
for ( char ch : nonce.toCharArray() ) {
number2 = number2 & m1;
switch (ch) {
case '1' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = number2 & m128;
number1 = number1 >>> 7;
number2 = number2 << 25;
number1 = number1 + number2;
}
case '2' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = number2 & m16;
number1 = number1 >>> 4;
number2 = number2 << 28;
number1 = number1 + number2;
}
case '3' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = number2 & m8;
number1 = number1 >>> 3;
number2 = number2 << 29;
number1 = number1 + number2;
}
case '4' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = number2 << 1;
number2 = number2 >>> 31;
number1 = number1 + number2;
}
case '5' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = number2 << 5;
number2 = number2 >>> 27;
number1 = number1 + number2;
}
case '6' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = number2 << 12;
number2 = number2 >>> 20;
number1 = number1 + number2;
}
case '7' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = number2 & 0xFF00L;
number1 = number1 + ( ( number2 & 0xFFL ) << 24 );
number1 = number1 + ( ( number2 & 0xFF0000L ) >>> 16 );
number2 = ( number2 & m16777216 ) >>> 8;
number1 = number1 + number2;
}
case '8' -> {
if ( flag ) { number2 = password;}
flag = false;
number1 = number2 & 0xFFFFL;
number1 = number1 << 16;
number1 = number1 + ( number2 >>> 24 );
number2 = number2 & 0xFF0000L;
number2 = number2 >>> 8;
number1 = number1 + number2;
}
case '9' -> {
if ( flag ) { number2 = password; }
flag = false;
number1 = ~number2;
}
default -> number1 = number2;
}
number2 = number1;
}
return number1 & m1;
}
}
</syntaxhighlight>
{{ out }}
<pre>
PASS 12345 603356072 25280520 25280520
PASS 12345 410501656 119537670 119537670
</pre>
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