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Brooklyn/crypto/SPH-java/ShabalGeneric.java

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// $Id: ShabalGeneric.java 231 2010-06-16 21:46:06Z tp $
package fr.cryptohash;
/**
* This class implements Shabal for all output sizes from 32 to 512 bits
* (inclusive, only multiples of 32 are supported). The output size must
* be provided as parameter to the constructor. Alternatively, you may
* use the {@link Shabal192}, {@link Shabal224}, {@link Shabal256},
* {@link Shabal384} or {@link Shabal512} classes for size-specific
* variants which offer a nullary constructor.
*
* <pre>
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
* </pre>
*
* @version $Revision: 231 $
* @author Thomas Pornin &lt;[email protected]&gt;
*/
public class ShabalGeneric implements Digest {
private int outSizeW32;
private byte[] buf;
private int ptr;
private int[] state;
private long W;
private ShabalGeneric()
{
buf = new byte[64];
state = new int[44];
}
/**
* Create the object. The output size must be a multiple of 32,
* between 32 and 512 (inclusive).
*
* @param outSize the intended output size
*/
public ShabalGeneric(int outSize)
{
this();
if (outSize < 32 || outSize > 512 || (outSize & 31) != 0)
throw new IllegalArgumentException(
"invalid Shabal output size: " + outSize);
outSizeW32 = outSize >>> 5;
reset();
}
/** @see Digest */
public void update(byte in)
{
buf[ptr ++] = in;
if (ptr == 64) {
core(buf, 0, 1);
ptr = 0;
}
}
/** @see Digest */
public void update(byte[] inbuf)
{
update(inbuf, 0, inbuf.length);
}
/** @see Digest */
public void update(byte[] inbuf, int off, int len)
{
if (ptr != 0) {
int rlen = 64 - ptr;
if (len < rlen) {
System.arraycopy(inbuf, off, buf, ptr, len);
ptr += len;
return;
} else {
System.arraycopy(inbuf, off, buf, ptr, rlen);
off += rlen;
len -= rlen;
core(buf, 0, 1);
}
}
int num = len >>> 6;
if (num > 0) {
core(inbuf, off, num);
off += num << 6;
len &= 63;
}
System.arraycopy(inbuf, off, buf, 0, len);
ptr = len;
}
/** @see Digest */
public int getDigestLength()
{
return outSizeW32 << 2;
}
/** @see Digest */
public byte[] digest()
{
int n = getDigestLength();
byte[] out = new byte[n];
digest(out, 0, n);
return out;
}
/** @see Digest */
public byte[] digest(byte[] inbuf)
{
update(inbuf, 0, inbuf.length);
return digest();
}
/** @see Digest */
public int digest(byte[] outbuf, int off, int len)
{
int dlen = getDigestLength();
if (len > dlen)
len = dlen;
buf[ptr ++] = (byte)0x80;
for (int i = ptr; i < 64; i ++)
buf[i] = 0;
for (int i = 0; i < 4; i ++) {
core(buf, 0, 1);
W --;
}
int j = 44 - (dlen >>> 2);
int w = 0;
for (int i = 0; i < len; i ++) {
if ((i & 3) == 0)
w = state[j ++];
outbuf[i] = (byte)w;
w >>>= 8;
}
reset();
return len;
}
private static final int[][] IVs = new int[16][];
private static int[] getIV(int outSizeW32)
{
int[] iv = IVs[outSizeW32 - 1];
if (iv == null) {
int outSize = outSizeW32 << 5;
ShabalGeneric sg = new ShabalGeneric();
for (int i = 0; i < 44; i ++)
sg.state[i] = 0;
sg.W = -1L;
for (int i = 0; i < 16; i ++) {
sg.buf[(i << 2) + 0] =
(byte)(outSize + i);
sg.buf[(i << 2) + 1] =
(byte)((outSize + i) >>> 8);
}
sg.core(sg.buf, 0, 1);
for (int i = 0; i < 16; i ++) {
sg.buf[(i << 2) + 0] =
(byte)(outSize + i + 16);
sg.buf[(i << 2) + 1] =
(byte)((outSize + i + 16) >>> 8);
}
sg.core(sg.buf, 0, 1);
iv = IVs[outSizeW32 - 1] = sg.state;
}
return iv;
}
/** @see Digest */
public void reset()
{
System.arraycopy(getIV(outSizeW32), 0, state, 0, 44);
W = 1;
ptr = 0;
}
/** @see Digest */
public Digest copy()
{
ShabalGeneric d = dup();
d.outSizeW32 = outSizeW32;
System.arraycopy(buf, 0, d.buf, 0, ptr);
d.ptr = ptr;
System.arraycopy(state, 0, d.state, 0, 44);
d.W = W;
return d;
}
/**
* Create a new instance with the same parameters. This method
* is invoked from {@link #copy}.
*
* @return the new instance
*/
ShabalGeneric dup()
{
return new ShabalGeneric();
}
/** @see Digest */
public int getBlockLength()
{
return 64;
}
private int[] M = new int[16];
private static final int decodeLEInt(byte[] data, int off)
{
return (data[off + 0] & 0xFF)
| ((data[off + 1] & 0xFF) << 8)
| ((data[off + 2] & 0xFF) << 16)
| ((data[off + 3] & 0xFF) << 24);
}
private final void core(byte[] data, int off, int num)
{
int A0 = state[ 0];
int A1 = state[ 1];
int A2 = state[ 2];
int A3 = state[ 3];
int A4 = state[ 4];
int A5 = state[ 5];
int A6 = state[ 6];
int A7 = state[ 7];
int A8 = state[ 8];
int A9 = state[ 9];
int AA = state[10];
int AB = state[11];
int B0 = state[12];
int B1 = state[13];
int B2 = state[14];
int B3 = state[15];
int B4 = state[16];
int B5 = state[17];
int B6 = state[18];
int B7 = state[19];
int B8 = state[20];
int B9 = state[21];
int BA = state[22];
int BB = state[23];
int BC = state[24];
int BD = state[25];
int BE = state[26];
int BF = state[27];
int C0 = state[28];
int C1 = state[29];
int C2 = state[30];
int C3 = state[31];
int C4 = state[32];
int C5 = state[33];
int C6 = state[34];
int C7 = state[35];
int C8 = state[36];
int C9 = state[37];
int CA = state[38];
int CB = state[39];
int CC = state[40];
int CD = state[41];
int CE = state[42];
int CF = state[43];
while (num -- > 0) {
int M0 = decodeLEInt(data, off + 0);
B0 += M0;
B0 = (B0 << 17) | (B0 >>> 15);
int M1 = decodeLEInt(data, off + 4);
B1 += M1;
B1 = (B1 << 17) | (B1 >>> 15);
int M2 = decodeLEInt(data, off + 8);
B2 += M2;
B2 = (B2 << 17) | (B2 >>> 15);
int M3 = decodeLEInt(data, off + 12);
B3 += M3;
B3 = (B3 << 17) | (B3 >>> 15);
int M4 = decodeLEInt(data, off + 16);
B4 += M4;
B4 = (B4 << 17) | (B4 >>> 15);
int M5 = decodeLEInt(data, off + 20);
B5 += M5;
B5 = (B5 << 17) | (B5 >>> 15);
int M6 = decodeLEInt(data, off + 24);
B6 += M6;
B6 = (B6 << 17) | (B6 >>> 15);
int M7 = decodeLEInt(data, off + 28);
B7 += M7;
B7 = (B7 << 17) | (B7 >>> 15);
int M8 = decodeLEInt(data, off + 32);
B8 += M8;
B8 = (B8 << 17) | (B8 >>> 15);
int M9 = decodeLEInt(data, off + 36);
B9 += M9;
B9 = (B9 << 17) | (B9 >>> 15);
int MA = decodeLEInt(data, off + 40);
BA += MA;
BA = (BA << 17) | (BA >>> 15);
int MB = decodeLEInt(data, off + 44);
BB += MB;
BB = (BB << 17) | (BB >>> 15);
int MC = decodeLEInt(data, off + 48);
BC += MC;
BC = (BC << 17) | (BC >>> 15);
int MD = decodeLEInt(data, off + 52);
BD += MD;
BD = (BD << 17) | (BD >>> 15);
int ME = decodeLEInt(data, off + 56);
BE += ME;
BE = (BE << 17) | (BE >>> 15);
int MF = decodeLEInt(data, off + 60);
BF += MF;
BF = (BF << 17) | (BF >>> 15);
off += 64;
A0 ^= (int)W;
A1 ^= (int)(W >>> 32);
W ++;
A0 = ((A0 ^ (((AB << 15) | (AB >>> 17)) * 5) ^ C8) * 3)
^ BD ^ (B9 & ~B6) ^ M0;
B0 = ~((B0 << 1) | (B0 >>> 31)) ^ A0;
A1 = ((A1 ^ (((A0 << 15) | (A0 >>> 17)) * 5) ^ C7) * 3)
^ BE ^ (BA & ~B7) ^ M1;
B1 = ~((B1 << 1) | (B1 >>> 31)) ^ A1;
A2 = ((A2 ^ (((A1 << 15) | (A1 >>> 17)) * 5) ^ C6) * 3)
^ BF ^ (BB & ~B8) ^ M2;
B2 = ~((B2 << 1) | (B2 >>> 31)) ^ A2;
A3 = ((A3 ^ (((A2 << 15) | (A2 >>> 17)) * 5) ^ C5) * 3)
^ B0 ^ (BC & ~B9) ^ M3;
B3 = ~((B3 << 1) | (B3 >>> 31)) ^ A3;
A4 = ((A4 ^ (((A3 << 15) | (A3 >>> 17)) * 5) ^ C4) * 3)
^ B1 ^ (BD & ~BA) ^ M4;
B4 = ~((B4 << 1) | (B4 >>> 31)) ^ A4;
A5 = ((A5 ^ (((A4 << 15) | (A4 >>> 17)) * 5) ^ C3) * 3)
^ B2 ^ (BE & ~BB) ^ M5;
B5 = ~((B5 << 1) | (B5 >>> 31)) ^ A5;
A6 = ((A6 ^ (((A5 << 15) | (A5 >>> 17)) * 5) ^ C2) * 3)
^ B3 ^ (BF & ~BC) ^ M6;
B6 = ~((B6 << 1) | (B6 >>> 31)) ^ A6;
A7 = ((A7 ^ (((A6 << 15) | (A6 >>> 17)) * 5) ^ C1) * 3)
^ B4 ^ (B0 & ~BD) ^ M7;
B7 = ~((B7 << 1) | (B7 >>> 31)) ^ A7;
A8 = ((A8 ^ (((A7 << 15) | (A7 >>> 17)) * 5) ^ C0) * 3)
^ B5 ^ (B1 & ~BE) ^ M8;
B8 = ~((B8 << 1) | (B8 >>> 31)) ^ A8;
A9 = ((A9 ^ (((A8 << 15) | (A8 >>> 17)) * 5) ^ CF) * 3)
^ B6 ^ (B2 & ~BF) ^ M9;
B9 = ~((B9 << 1) | (B9 >>> 31)) ^ A9;
AA = ((AA ^ (((A9 << 15) | (A9 >>> 17)) * 5) ^ CE) * 3)
^ B7 ^ (B3 & ~B0) ^ MA;
BA = ~((BA << 1) | (BA >>> 31)) ^ AA;
AB = ((AB ^ (((AA << 15) | (AA >>> 17)) * 5) ^ CD) * 3)
^ B8 ^ (B4 & ~B1) ^ MB;
BB = ~((BB << 1) | (BB >>> 31)) ^ AB;
A0 = ((A0 ^ (((AB << 15) | (AB >>> 17)) * 5) ^ CC) * 3)
^ B9 ^ (B5 & ~B2) ^ MC;
BC = ~((BC << 1) | (BC >>> 31)) ^ A0;
A1 = ((A1 ^ (((A0 << 15) | (A0 >>> 17)) * 5) ^ CB) * 3)
^ BA ^ (B6 & ~B3) ^ MD;
BD = ~((BD << 1) | (BD >>> 31)) ^ A1;
A2 = ((A2 ^ (((A1 << 15) | (A1 >>> 17)) * 5) ^ CA) * 3)
^ BB ^ (B7 & ~B4) ^ ME;
BE = ~((BE << 1) | (BE >>> 31)) ^ A2;
A3 = ((A3 ^ (((A2 << 15) | (A2 >>> 17)) * 5) ^ C9) * 3)
^ BC ^ (B8 & ~B5) ^ MF;
BF = ~((BF << 1) | (BF >>> 31)) ^ A3;
A4 = ((A4 ^ (((A3 << 15) | (A3 >>> 17)) * 5) ^ C8) * 3)
^ BD ^ (B9 & ~B6) ^ M0;
B0 = ~((B0 << 1) | (B0 >>> 31)) ^ A4;
A5 = ((A5 ^ (((A4 << 15) | (A4 >>> 17)) * 5) ^ C7) * 3)
^ BE ^ (BA & ~B7) ^ M1;
B1 = ~((B1 << 1) | (B1 >>> 31)) ^ A5;
A6 = ((A6 ^ (((A5 << 15) | (A5 >>> 17)) * 5) ^ C6) * 3)
^ BF ^ (BB & ~B8) ^ M2;
B2 = ~((B2 << 1) | (B2 >>> 31)) ^ A6;
A7 = ((A7 ^ (((A6 << 15) | (A6 >>> 17)) * 5) ^ C5) * 3)
^ B0 ^ (BC & ~B9) ^ M3;
B3 = ~((B3 << 1) | (B3 >>> 31)) ^ A7;
A8 = ((A8 ^ (((A7 << 15) | (A7 >>> 17)) * 5) ^ C4) * 3)
^ B1 ^ (BD & ~BA) ^ M4;
B4 = ~((B4 << 1) | (B4 >>> 31)) ^ A8;
A9 = ((A9 ^ (((A8 << 15) | (A8 >>> 17)) * 5) ^ C3) * 3)
^ B2 ^ (BE & ~BB) ^ M5;
B5 = ~((B5 << 1) | (B5 >>> 31)) ^ A9;
AA = ((AA ^ (((A9 << 15) | (A9 >>> 17)) * 5) ^ C2) * 3)
^ B3 ^ (BF & ~BC) ^ M6;
B6 = ~((B6 << 1) | (B6 >>> 31)) ^ AA;
AB = ((AB ^ (((AA << 15) | (AA >>> 17)) * 5) ^ C1) * 3)
^ B4 ^ (B0 & ~BD) ^ M7;
B7 = ~((B7 << 1) | (B7 >>> 31)) ^ AB;
A0 = ((A0 ^ (((AB << 15) | (AB >>> 17)) * 5) ^ C0) * 3)
^ B5 ^ (B1 & ~BE) ^ M8;
B8 = ~((B8 << 1) | (B8 >>> 31)) ^ A0;
A1 = ((A1 ^ (((A0 << 15) | (A0 >>> 17)) * 5) ^ CF) * 3)
^ B6 ^ (B2 & ~BF) ^ M9;
B9 = ~((B9 << 1) | (B9 >>> 31)) ^ A1;
A2 = ((A2 ^ (((A1 << 15) | (A1 >>> 17)) * 5) ^ CE) * 3)
^ B7 ^ (B3 & ~B0) ^ MA;
BA = ~((BA << 1) | (BA >>> 31)) ^ A2;
A3 = ((A3 ^ (((A2 << 15) | (A2 >>> 17)) * 5) ^ CD) * 3)
^ B8 ^ (B4 & ~B1) ^ MB;
BB = ~((BB << 1) | (BB >>> 31)) ^ A3;
A4 = ((A4 ^ (((A3 << 15) | (A3 >>> 17)) * 5) ^ CC) * 3)
^ B9 ^ (B5 & ~B2) ^ MC;
BC = ~((BC << 1) | (BC >>> 31)) ^ A4;
A5 = ((A5 ^ (((A4 << 15) | (A4 >>> 17)) * 5) ^ CB) * 3)
^ BA ^ (B6 & ~B3) ^ MD;
BD = ~((BD << 1) | (BD >>> 31)) ^ A5;
A6 = ((A6 ^ (((A5 << 15) | (A5 >>> 17)) * 5) ^ CA) * 3)
^ BB ^ (B7 & ~B4) ^ ME;
BE = ~((BE << 1) | (BE >>> 31)) ^ A6;
A7 = ((A7 ^ (((A6 << 15) | (A6 >>> 17)) * 5) ^ C9) * 3)
^ BC ^ (B8 & ~B5) ^ MF;
BF = ~((BF << 1) | (BF >>> 31)) ^ A7;
A8 = ((A8 ^ (((A7 << 15) | (A7 >>> 17)) * 5) ^ C8) * 3)
^ BD ^ (B9 & ~B6) ^ M0;
B0 = ~((B0 << 1) | (B0 >>> 31)) ^ A8;
A9 = ((A9 ^ (((A8 << 15) | (A8 >>> 17)) * 5) ^ C7) * 3)
^ BE ^ (BA & ~B7) ^ M1;
B1 = ~((B1 << 1) | (B1 >>> 31)) ^ A9;
AA = ((AA ^ (((A9 << 15) | (A9 >>> 17)) * 5) ^ C6) * 3)
^ BF ^ (BB & ~B8) ^ M2;
B2 = ~((B2 << 1) | (B2 >>> 31)) ^ AA;
AB = ((AB ^ (((AA << 15) | (AA >>> 17)) * 5) ^ C5) * 3)
^ B0 ^ (BC & ~B9) ^ M3;
B3 = ~((B3 << 1) | (B3 >>> 31)) ^ AB;
A0 = ((A0 ^ (((AB << 15) | (AB >>> 17)) * 5) ^ C4) * 3)
^ B1 ^ (BD & ~BA) ^ M4;
B4 = ~((B4 << 1) | (B4 >>> 31)) ^ A0;
A1 = ((A1 ^ (((A0 << 15) | (A0 >>> 17)) * 5) ^ C3) * 3)
^ B2 ^ (BE & ~BB) ^ M5;
B5 = ~((B5 << 1) | (B5 >>> 31)) ^ A1;
A2 = ((A2 ^ (((A1 << 15) | (A1 >>> 17)) * 5) ^ C2) * 3)
^ B3 ^ (BF & ~BC) ^ M6;
B6 = ~((B6 << 1) | (B6 >>> 31)) ^ A2;
A3 = ((A3 ^ (((A2 << 15) | (A2 >>> 17)) * 5) ^ C1) * 3)
^ B4 ^ (B0 & ~BD) ^ M7;
B7 = ~((B7 << 1) | (B7 >>> 31)) ^ A3;
A4 = ((A4 ^ (((A3 << 15) | (A3 >>> 17)) * 5) ^ C0) * 3)
^ B5 ^ (B1 & ~BE) ^ M8;
B8 = ~((B8 << 1) | (B8 >>> 31)) ^ A4;
A5 = ((A5 ^ (((A4 << 15) | (A4 >>> 17)) * 5) ^ CF) * 3)
^ B6 ^ (B2 & ~BF) ^ M9;
B9 = ~((B9 << 1) | (B9 >>> 31)) ^ A5;
A6 = ((A6 ^ (((A5 << 15) | (A5 >>> 17)) * 5) ^ CE) * 3)
^ B7 ^ (B3 & ~B0) ^ MA;
BA = ~((BA << 1) | (BA >>> 31)) ^ A6;
A7 = ((A7 ^ (((A6 << 15) | (A6 >>> 17)) * 5) ^ CD) * 3)
^ B8 ^ (B4 & ~B1) ^ MB;
BB = ~((BB << 1) | (BB >>> 31)) ^ A7;
A8 = ((A8 ^ (((A7 << 15) | (A7 >>> 17)) * 5) ^ CC) * 3)
^ B9 ^ (B5 & ~B2) ^ MC;
BC = ~((BC << 1) | (BC >>> 31)) ^ A8;
A9 = ((A9 ^ (((A8 << 15) | (A8 >>> 17)) * 5) ^ CB) * 3)
^ BA ^ (B6 & ~B3) ^ MD;
BD = ~((BD << 1) | (BD >>> 31)) ^ A9;
AA = ((AA ^ (((A9 << 15) | (A9 >>> 17)) * 5) ^ CA) * 3)
^ BB ^ (B7 & ~B4) ^ ME;
BE = ~((BE << 1) | (BE >>> 31)) ^ AA;
AB = ((AB ^ (((AA << 15) | (AA >>> 17)) * 5) ^ C9) * 3)
^ BC ^ (B8 & ~B5) ^ MF;
BF = ~((BF << 1) | (BF >>> 31)) ^ AB;
AB += C6 + CA + CE;
AA += C5 + C9 + CD;
A9 += C4 + C8 + CC;
A8 += C3 + C7 + CB;
A7 += C2 + C6 + CA;
A6 += C1 + C5 + C9;
A5 += C0 + C4 + C8;
A4 += CF + C3 + C7;
A3 += CE + C2 + C6;
A2 += CD + C1 + C5;
A1 += CC + C0 + C4;
A0 += CB + CF + C3;
int tmp;
tmp = B0; B0 = C0 - M0; C0 = tmp;
tmp = B1; B1 = C1 - M1; C1 = tmp;
tmp = B2; B2 = C2 - M2; C2 = tmp;
tmp = B3; B3 = C3 - M3; C3 = tmp;
tmp = B4; B4 = C4 - M4; C4 = tmp;
tmp = B5; B5 = C5 - M5; C5 = tmp;
tmp = B6; B6 = C6 - M6; C6 = tmp;
tmp = B7; B7 = C7 - M7; C7 = tmp;
tmp = B8; B8 = C8 - M8; C8 = tmp;
tmp = B9; B9 = C9 - M9; C9 = tmp;
tmp = BA; BA = CA - MA; CA = tmp;
tmp = BB; BB = CB - MB; CB = tmp;
tmp = BC; BC = CC - MC; CC = tmp;
tmp = BD; BD = CD - MD; CD = tmp;
tmp = BE; BE = CE - ME; CE = tmp;
tmp = BF; BF = CF - MF; CF = tmp;
}
state[ 0] = A0;
state[ 1] = A1;
state[ 2] = A2;
state[ 3] = A3;
state[ 4] = A4;
state[ 5] = A5;
state[ 6] = A6;
state[ 7] = A7;
state[ 8] = A8;
state[ 9] = A9;
state[10] = AA;
state[11] = AB;
state[12] = B0;
state[13] = B1;
state[14] = B2;
state[15] = B3;
state[16] = B4;
state[17] = B5;
state[18] = B6;
state[19] = B7;
state[20] = B8;
state[21] = B9;
state[22] = BA;
state[23] = BB;
state[24] = BC;
state[25] = BD;
state[26] = BE;
state[27] = BF;
state[28] = C0;
state[29] = C1;
state[30] = C2;
state[31] = C3;
state[32] = C4;
state[33] = C5;
state[34] = C6;
state[35] = C7;
state[36] = C8;
state[37] = C9;
state[38] = CA;
state[39] = CB;
state[40] = CC;
state[41] = CD;
state[42] = CE;
state[43] = CF;
}
/** @see Digest */
public String toString()
{
return "Shabal-" + (getDigestLength() << 3);
}
}