aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Data update

Browse source
This commit is contained in:
Ingy döt Net 2023-10-02 18:11:16 -07:00
parent 796d366b97
commit 35bcdeebf8
504 changed files with 7045 additions and 610 deletions
Download patch file Download diff file Expand all files Collapse all files

17
Task/RIPEMD-160/Java/ripemd-160-2.java
View file

@ -14,11 +14,11 @@ final class RIPEMD160 {
public static String messageDigest(String aMessage) {
int[] state = { 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 };
byte[] bytes = addPadding(aMessage);
byte[] bytes = addPadding(aMessage);
for ( int i = 0; i < bytes.length / BLOCK_LENGTH; i++ ) {
int[] schedule = new int[16];
for ( int j = 0; j < BLOCK_LENGTH; j++ ) {
schedule[j / 4] |= ( bytes[i + j] & 0xff ) << ( j % 4 * 8 );
schedule[j / 4] |= ( bytes[i * BLOCK_LENGTH + j] & 0xff ) << ( j % 4 * 8 );
}
int a = state[0], b = state[1], c = state[2], d = state[3], e = state[4];
@ -29,7 +29,7 @@ final class RIPEMD160 {
int jj = j / 16;
t = Integer.rotateLeft(a + ff(jj + 1, b, c, d) + schedule[RL[j]] + KL[jj], SL[j]) + e;
tt = Integer.rotateLeft(aa + ff(5 - jj, bb, cc, dd) + schedule[RR[j]] + KR[jj], SR[j]) + ee;
a = e; e = d; d = Integer.rotateLeft(c, 10); c = b; b = t;
aa = ee; ee = dd; dd = Integer.rotateLeft(cc, 10); cc = bb; bb = tt;
}
@ -40,7 +40,7 @@ final class RIPEMD160 {
state[3] = state[4] + a + bb;
state[4] = state[0] + b + cc;
state[0] = t;
}
}
String result = "";
for ( int i = 0; i < state.length * 4; i++ ) {
@ -52,16 +52,15 @@ final class RIPEMD160 {
private static byte[] addPadding(String aMessage) {
byte[] bytes = aMessage.getBytes(StandardCharsets.UTF_8);
bytes = Arrays.copyOf(bytes, bytes.length + 1);
bytes[bytes.length - 1] = (byte) 0x80;
final int length = aMessage.length();
int padding = BLOCK_LENGTH - ( (length + 1 ) % BLOCK_LENGTH );
bytes[bytes.length - 1] = (byte) 0x80;
int padding = BLOCK_LENGTH - ( bytes.length % BLOCK_LENGTH );
if ( padding < 8 ) {
padding += BLOCK_LENGTH;
}
bytes = Arrays.copyOf(bytes, bytes.length + padding);
final long bitLength = 8 * length;
final long bitLength = aMessage.length() * 8;
for ( int i = 0; i < 8; i++ ) {
bytes[bytes.length - 8 + i] = (byte) ( bitLength >>> ( 8 * i ) );
}