diff options
Diffstat (limited to 'libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/digests/RIPEMD160Digest.java')
| -rw-r--r-- | libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/digests/RIPEMD160Digest.java | 443 |
1 files changed, 443 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/digests/RIPEMD160Digest.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/digests/RIPEMD160Digest.java new file mode 100644 index 000000000..c59ba7f7c --- /dev/null +++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/digests/RIPEMD160Digest.java @@ -0,0 +1,443 @@ +package org.spongycastle.crypto.digests; + + +import org.spongycastle.util.Memoable; + +/** + * implementation of RIPEMD see, + * http://www.esat.kuleuven.ac.be/~bosselae/ripemd160.html + */ +public class RIPEMD160Digest + extends GeneralDigest +{ + private static final int DIGEST_LENGTH = 20; + + private int H0, H1, H2, H3, H4; // IV's + + private int[] X = new int[16]; + private int xOff; + + /** + * Standard constructor + */ + public RIPEMD160Digest() + { + reset(); + } + + /** + * Copy constructor. This will copy the state of the provided + * message digest. + */ + public RIPEMD160Digest(RIPEMD160Digest t) + { + super(t); + + copyIn(t); + } + + private void copyIn(RIPEMD160Digest t) + { + super.copyIn(t); + + H0 = t.H0; + H1 = t.H1; + H2 = t.H2; + H3 = t.H3; + H4 = t.H4; + + System.arraycopy(t.X, 0, X, 0, t.X.length); + xOff = t.xOff; + } + + public String getAlgorithmName() + { + return "RIPEMD160"; + } + + public int getDigestSize() + { + return DIGEST_LENGTH; + } + + protected void processWord( + byte[] in, + int inOff) + { + X[xOff++] = (in[inOff] & 0xff) | ((in[inOff + 1] & 0xff) << 8) + | ((in[inOff + 2] & 0xff) << 16) | ((in[inOff + 3] & 0xff) << 24); + + if (xOff == 16) + { + processBlock(); + } + } + + protected void processLength( + long bitLength) + { + if (xOff > 14) + { + processBlock(); + } + + X[14] = (int)(bitLength & 0xffffffff); + X[15] = (int)(bitLength >>> 32); + } + + private void unpackWord( + int word, + byte[] out, + int outOff) + { + out[outOff] = (byte)word; + out[outOff + 1] = (byte)(word >>> 8); + out[outOff + 2] = (byte)(word >>> 16); + out[outOff + 3] = (byte)(word >>> 24); + } + + public int doFinal( + byte[] out, + int outOff) + { + finish(); + + unpackWord(H0, out, outOff); + unpackWord(H1, out, outOff + 4); + unpackWord(H2, out, outOff + 8); + unpackWord(H3, out, outOff + 12); + unpackWord(H4, out, outOff + 16); + + reset(); + + return DIGEST_LENGTH; + } + + /** + * reset the chaining variables to the IV values. + */ + public void reset() + { + super.reset(); + + H0 = 0x67452301; + H1 = 0xefcdab89; + H2 = 0x98badcfe; + H3 = 0x10325476; + H4 = 0xc3d2e1f0; + + xOff = 0; + + for (int i = 0; i != X.length; i++) + { + X[i] = 0; + } + } + + /* + * rotate int x left n bits. + */ + private int RL( + int x, + int n) + { + return (x << n) | (x >>> (32 - n)); + } + + /* + * f1,f2,f3,f4,f5 are the basic RIPEMD160 functions. + */ + + /* + * rounds 0-15 + */ + private int f1( + int x, + int y, + int z) + { + return x ^ y ^ z; + } + + /* + * rounds 16-31 + */ + private int f2( + int x, + int y, + int z) + { + return (x & y) | (~x & z); + } + + /* + * rounds 32-47 + */ + private int f3( + int x, + int y, + int z) + { + return (x | ~y) ^ z; + } + + /* + * rounds 48-63 + */ + private int f4( + int x, + int y, + int z) + { + return (x & z) | (y & ~z); + } + + /* + * rounds 64-79 + */ + private int f5( + int x, + int y, + int z) + { + return x ^ (y | ~z); + } + + protected void processBlock() + { + int a, aa; + int b, bb; + int c, cc; + int d, dd; + int e, ee; + + a = aa = H0; + b = bb = H1; + c = cc = H2; + d = dd = H3; + e = ee = H4; + + // + // Rounds 1 - 16 + // + // left + a = RL(a + f1(b,c,d) + X[ 0], 11) + e; c = RL(c, 10); + e = RL(e + f1(a,b,c) + X[ 1], 14) + d; b = RL(b, 10); + d = RL(d + f1(e,a,b) + X[ 2], 15) + c; a = RL(a, 10); + c = RL(c + f1(d,e,a) + X[ 3], 12) + b; e = RL(e, 10); + b = RL(b + f1(c,d,e) + X[ 4], 5) + a; d = RL(d, 10); + a = RL(a + f1(b,c,d) + X[ 5], 8) + e; c = RL(c, 10); + e = RL(e + f1(a,b,c) + X[ 6], 7) + d; b = RL(b, 10); + d = RL(d + f1(e,a,b) + X[ 7], 9) + c; a = RL(a, 10); + c = RL(c + f1(d,e,a) + X[ 8], 11) + b; e = RL(e, 10); + b = RL(b + f1(c,d,e) + X[ 9], 13) + a; d = RL(d, 10); + a = RL(a + f1(b,c,d) + X[10], 14) + e; c = RL(c, 10); + e = RL(e + f1(a,b,c) + X[11], 15) + d; b = RL(b, 10); + d = RL(d + f1(e,a,b) + X[12], 6) + c; a = RL(a, 10); + c = RL(c + f1(d,e,a) + X[13], 7) + b; e = RL(e, 10); + b = RL(b + f1(c,d,e) + X[14], 9) + a; d = RL(d, 10); + a = RL(a + f1(b,c,d) + X[15], 8) + e; c = RL(c, 10); + + // right + aa = RL(aa + f5(bb,cc,dd) + X[ 5] + 0x50a28be6, 8) + ee; cc = RL(cc, 10); + ee = RL(ee + f5(aa,bb,cc) + X[14] + 0x50a28be6, 9) + dd; bb = RL(bb, 10); + dd = RL(dd + f5(ee,aa,bb) + X[ 7] + 0x50a28be6, 9) + cc; aa = RL(aa, 10); + cc = RL(cc + f5(dd,ee,aa) + X[ 0] + 0x50a28be6, 11) + bb; ee = RL(ee, 10); + bb = RL(bb + f5(cc,dd,ee) + X[ 9] + 0x50a28be6, 13) + aa; dd = RL(dd, 10); + aa = RL(aa + f5(bb,cc,dd) + X[ 2] + 0x50a28be6, 15) + ee; cc = RL(cc, 10); + ee = RL(ee + f5(aa,bb,cc) + X[11] + 0x50a28be6, 15) + dd; bb = RL(bb, 10); + dd = RL(dd + f5(ee,aa,bb) + X[ 4] + 0x50a28be6, 5) + cc; aa = RL(aa, 10); + cc = RL(cc + f5(dd,ee,aa) + X[13] + 0x50a28be6, 7) + bb; ee = RL(ee, 10); + bb = RL(bb + f5(cc,dd,ee) + X[ 6] + 0x50a28be6, 7) + aa; dd = RL(dd, 10); + aa = RL(aa + f5(bb,cc,dd) + X[15] + 0x50a28be6, 8) + ee; cc = RL(cc, 10); + ee = RL(ee + f5(aa,bb,cc) + X[ 8] + 0x50a28be6, 11) + dd; bb = RL(bb, 10); + dd = RL(dd + f5(ee,aa,bb) + X[ 1] + 0x50a28be6, 14) + cc; aa = RL(aa, 10); + cc = RL(cc + f5(dd,ee,aa) + X[10] + 0x50a28be6, 14) + bb; ee = RL(ee, 10); + bb = RL(bb + f5(cc,dd,ee) + X[ 3] + 0x50a28be6, 12) + aa; dd = RL(dd, 10); + aa = RL(aa + f5(bb,cc,dd) + X[12] + 0x50a28be6, 6) + ee; cc = RL(cc, 10); + + // + // Rounds 16-31 + // + // left + e = RL(e + f2(a,b,c) + X[ 7] + 0x5a827999, 7) + d; b = RL(b, 10); + d = RL(d + f2(e,a,b) + X[ 4] + 0x5a827999, 6) + c; a = RL(a, 10); + c = RL(c + f2(d,e,a) + X[13] + 0x5a827999, 8) + b; e = RL(e, 10); + b = RL(b + f2(c,d,e) + X[ 1] + 0x5a827999, 13) + a; d = RL(d, 10); + a = RL(a + f2(b,c,d) + X[10] + 0x5a827999, 11) + e; c = RL(c, 10); + e = RL(e + f2(a,b,c) + X[ 6] + 0x5a827999, 9) + d; b = RL(b, 10); + d = RL(d + f2(e,a,b) + X[15] + 0x5a827999, 7) + c; a = RL(a, 10); + c = RL(c + f2(d,e,a) + X[ 3] + 0x5a827999, 15) + b; e = RL(e, 10); + b = RL(b + f2(c,d,e) + X[12] + 0x5a827999, 7) + a; d = RL(d, 10); + a = RL(a + f2(b,c,d) + X[ 0] + 0x5a827999, 12) + e; c = RL(c, 10); + e = RL(e + f2(a,b,c) + X[ 9] + 0x5a827999, 15) + d; b = RL(b, 10); + d = RL(d + f2(e,a,b) + X[ 5] + 0x5a827999, 9) + c; a = RL(a, 10); + c = RL(c + f2(d,e,a) + X[ 2] + 0x5a827999, 11) + b; e = RL(e, 10); + b = RL(b + f2(c,d,e) + X[14] + 0x5a827999, 7) + a; d = RL(d, 10); + a = RL(a + f2(b,c,d) + X[11] + 0x5a827999, 13) + e; c = RL(c, 10); + e = RL(e + f2(a,b,c) + X[ 8] + 0x5a827999, 12) + d; b = RL(b, 10); + + // right + ee = RL(ee + f4(aa,bb,cc) + X[ 6] + 0x5c4dd124, 9) + dd; bb = RL(bb, 10); + dd = RL(dd + f4(ee,aa,bb) + X[11] + 0x5c4dd124, 13) + cc; aa = RL(aa, 10); + cc = RL(cc + f4(dd,ee,aa) + X[ 3] + 0x5c4dd124, 15) + bb; ee = RL(ee, 10); + bb = RL(bb + f4(cc,dd,ee) + X[ 7] + 0x5c4dd124, 7) + aa; dd = RL(dd, 10); + aa = RL(aa + f4(bb,cc,dd) + X[ 0] + 0x5c4dd124, 12) + ee; cc = RL(cc, 10); + ee = RL(ee + f4(aa,bb,cc) + X[13] + 0x5c4dd124, 8) + dd; bb = RL(bb, 10); + dd = RL(dd + f4(ee,aa,bb) + X[ 5] + 0x5c4dd124, 9) + cc; aa = RL(aa, 10); + cc = RL(cc + f4(dd,ee,aa) + X[10] + 0x5c4dd124, 11) + bb; ee = RL(ee, 10); + bb = RL(bb + f4(cc,dd,ee) + X[14] + 0x5c4dd124, 7) + aa; dd = RL(dd, 10); + aa = RL(aa + f4(bb,cc,dd) + X[15] + 0x5c4dd124, 7) + ee; cc = RL(cc, 10); + ee = RL(ee + f4(aa,bb,cc) + X[ 8] + 0x5c4dd124, 12) + dd; bb = RL(bb, 10); + dd = RL(dd + f4(ee,aa,bb) + X[12] + 0x5c4dd124, 7) + cc; aa = RL(aa, 10); + cc = RL(cc + f4(dd,ee,aa) + X[ 4] + 0x5c4dd124, 6) + bb; ee = RL(ee, 10); + bb = RL(bb + f4(cc,dd,ee) + X[ 9] + 0x5c4dd124, 15) + aa; dd = RL(dd, 10); + aa = RL(aa + f4(bb,cc,dd) + X[ 1] + 0x5c4dd124, 13) + ee; cc = RL(cc, 10); + ee = RL(ee + f4(aa,bb,cc) + X[ 2] + 0x5c4dd124, 11) + dd; bb = RL(bb, 10); + + // + // Rounds 32-47 + // + // left + d = RL(d + f3(e,a,b) + X[ 3] + 0x6ed9eba1, 11) + c; a = RL(a, 10); + c = RL(c + f3(d,e,a) + X[10] + 0x6ed9eba1, 13) + b; e = RL(e, 10); + b = RL(b + f3(c,d,e) + X[14] + 0x6ed9eba1, 6) + a; d = RL(d, 10); + a = RL(a + f3(b,c,d) + X[ 4] + 0x6ed9eba1, 7) + e; c = RL(c, 10); + e = RL(e + f3(a,b,c) + X[ 9] + 0x6ed9eba1, 14) + d; b = RL(b, 10); + d = RL(d + f3(e,a,b) + X[15] + 0x6ed9eba1, 9) + c; a = RL(a, 10); + c = RL(c + f3(d,e,a) + X[ 8] + 0x6ed9eba1, 13) + b; e = RL(e, 10); + b = RL(b + f3(c,d,e) + X[ 1] + 0x6ed9eba1, 15) + a; d = RL(d, 10); + a = RL(a + f3(b,c,d) + X[ 2] + 0x6ed9eba1, 14) + e; c = RL(c, 10); + e = RL(e + f3(a,b,c) + X[ 7] + 0x6ed9eba1, 8) + d; b = RL(b, 10); + d = RL(d + f3(e,a,b) + X[ 0] + 0x6ed9eba1, 13) + c; a = RL(a, 10); + c = RL(c + f3(d,e,a) + X[ 6] + 0x6ed9eba1, 6) + b; e = RL(e, 10); + b = RL(b + f3(c,d,e) + X[13] + 0x6ed9eba1, 5) + a; d = RL(d, 10); + a = RL(a + f3(b,c,d) + X[11] + 0x6ed9eba1, 12) + e; c = RL(c, 10); + e = RL(e + f3(a,b,c) + X[ 5] + 0x6ed9eba1, 7) + d; b = RL(b, 10); + d = RL(d + f3(e,a,b) + X[12] + 0x6ed9eba1, 5) + c; a = RL(a, 10); + + // right + dd = RL(dd + f3(ee,aa,bb) + X[15] + 0x6d703ef3, 9) + cc; aa = RL(aa, 10); + cc = RL(cc + f3(dd,ee,aa) + X[ 5] + 0x6d703ef3, 7) + bb; ee = RL(ee, 10); + bb = RL(bb + f3(cc,dd,ee) + X[ 1] + 0x6d703ef3, 15) + aa; dd = RL(dd, 10); + aa = RL(aa + f3(bb,cc,dd) + X[ 3] + 0x6d703ef3, 11) + ee; cc = RL(cc, 10); + ee = RL(ee + f3(aa,bb,cc) + X[ 7] + 0x6d703ef3, 8) + dd; bb = RL(bb, 10); + dd = RL(dd + f3(ee,aa,bb) + X[14] + 0x6d703ef3, 6) + cc; aa = RL(aa, 10); + cc = RL(cc + f3(dd,ee,aa) + X[ 6] + 0x6d703ef3, 6) + bb; ee = RL(ee, 10); + bb = RL(bb + f3(cc,dd,ee) + X[ 9] + 0x6d703ef3, 14) + aa; dd = RL(dd, 10); + aa = RL(aa + f3(bb,cc,dd) + X[11] + 0x6d703ef3, 12) + ee; cc = RL(cc, 10); + ee = RL(ee + f3(aa,bb,cc) + X[ 8] + 0x6d703ef3, 13) + dd; bb = RL(bb, 10); + dd = RL(dd + f3(ee,aa,bb) + X[12] + 0x6d703ef3, 5) + cc; aa = RL(aa, 10); + cc = RL(cc + f3(dd,ee,aa) + X[ 2] + 0x6d703ef3, 14) + bb; ee = RL(ee, 10); + bb = RL(bb + f3(cc,dd,ee) + X[10] + 0x6d703ef3, 13) + aa; dd = RL(dd, 10); + aa = RL(aa + f3(bb,cc,dd) + X[ 0] + 0x6d703ef3, 13) + ee; cc = RL(cc, 10); + ee = RL(ee + f3(aa,bb,cc) + X[ 4] + 0x6d703ef3, 7) + dd; bb = RL(bb, 10); + dd = RL(dd + f3(ee,aa,bb) + X[13] + 0x6d703ef3, 5) + cc; aa = RL(aa, 10); + + // + // Rounds 48-63 + // + // left + c = RL(c + f4(d,e,a) + X[ 1] + 0x8f1bbcdc, 11) + b; e = RL(e, 10); + b = RL(b + f4(c,d,e) + X[ 9] + 0x8f1bbcdc, 12) + a; d = RL(d, 10); + a = RL(a + f4(b,c,d) + X[11] + 0x8f1bbcdc, 14) + e; c = RL(c, 10); + e = RL(e + f4(a,b,c) + X[10] + 0x8f1bbcdc, 15) + d; b = RL(b, 10); + d = RL(d + f4(e,a,b) + X[ 0] + 0x8f1bbcdc, 14) + c; a = RL(a, 10); + c = RL(c + f4(d,e,a) + X[ 8] + 0x8f1bbcdc, 15) + b; e = RL(e, 10); + b = RL(b + f4(c,d,e) + X[12] + 0x8f1bbcdc, 9) + a; d = RL(d, 10); + a = RL(a + f4(b,c,d) + X[ 4] + 0x8f1bbcdc, 8) + e; c = RL(c, 10); + e = RL(e + f4(a,b,c) + X[13] + 0x8f1bbcdc, 9) + d; b = RL(b, 10); + d = RL(d + f4(e,a,b) + X[ 3] + 0x8f1bbcdc, 14) + c; a = RL(a, 10); + c = RL(c + f4(d,e,a) + X[ 7] + 0x8f1bbcdc, 5) + b; e = RL(e, 10); + b = RL(b + f4(c,d,e) + X[15] + 0x8f1bbcdc, 6) + a; d = RL(d, 10); + a = RL(a + f4(b,c,d) + X[14] + 0x8f1bbcdc, 8) + e; c = RL(c, 10); + e = RL(e + f4(a,b,c) + X[ 5] + 0x8f1bbcdc, 6) + d; b = RL(b, 10); + d = RL(d + f4(e,a,b) + X[ 6] + 0x8f1bbcdc, 5) + c; a = RL(a, 10); + c = RL(c + f4(d,e,a) + X[ 2] + 0x8f1bbcdc, 12) + b; e = RL(e, 10); + + // right + cc = RL(cc + f2(dd,ee,aa) + X[ 8] + 0x7a6d76e9, 15) + bb; ee = RL(ee, 10); + bb = RL(bb + f2(cc,dd,ee) + X[ 6] + 0x7a6d76e9, 5) + aa; dd = RL(dd, 10); + aa = RL(aa + f2(bb,cc,dd) + X[ 4] + 0x7a6d76e9, 8) + ee; cc = RL(cc, 10); + ee = RL(ee + f2(aa,bb,cc) + X[ 1] + 0x7a6d76e9, 11) + dd; bb = RL(bb, 10); + dd = RL(dd + f2(ee,aa,bb) + X[ 3] + 0x7a6d76e9, 14) + cc; aa = RL(aa, 10); + cc = RL(cc + f2(dd,ee,aa) + X[11] + 0x7a6d76e9, 14) + bb; ee = RL(ee, 10); + bb = RL(bb + f2(cc,dd,ee) + X[15] + 0x7a6d76e9, 6) + aa; dd = RL(dd, 10); + aa = RL(aa + f2(bb,cc,dd) + X[ 0] + 0x7a6d76e9, 14) + ee; cc = RL(cc, 10); + ee = RL(ee + f2(aa,bb,cc) + X[ 5] + 0x7a6d76e9, 6) + dd; bb = RL(bb, 10); + dd = RL(dd + f2(ee,aa,bb) + X[12] + 0x7a6d76e9, 9) + cc; aa = RL(aa, 10); + cc = RL(cc + f2(dd,ee,aa) + X[ 2] + 0x7a6d76e9, 12) + bb; ee = RL(ee, 10); + bb = RL(bb + f2(cc,dd,ee) + X[13] + 0x7a6d76e9, 9) + aa; dd = RL(dd, 10); + aa = RL(aa + f2(bb,cc,dd) + X[ 9] + 0x7a6d76e9, 12) + ee; cc = RL(cc, 10); + ee = RL(ee + f2(aa,bb,cc) + X[ 7] + 0x7a6d76e9, 5) + dd; bb = RL(bb, 10); + dd = RL(dd + f2(ee,aa,bb) + X[10] + 0x7a6d76e9, 15) + cc; aa = RL(aa, 10); + cc = RL(cc + f2(dd,ee,aa) + X[14] + 0x7a6d76e9, 8) + bb; ee = RL(ee, 10); + + // + // Rounds 64-79 + // + // left + b = RL(b + f5(c,d,e) + X[ 4] + 0xa953fd4e, 9) + a; d = RL(d, 10); + a = RL(a + f5(b,c,d) + X[ 0] + 0xa953fd4e, 15) + e; c = RL(c, 10); + e = RL(e + f5(a,b,c) + X[ 5] + 0xa953fd4e, 5) + d; b = RL(b, 10); + d = RL(d + f5(e,a,b) + X[ 9] + 0xa953fd4e, 11) + c; a = RL(a, 10); + c = RL(c + f5(d,e,a) + X[ 7] + 0xa953fd4e, 6) + b; e = RL(e, 10); + b = RL(b + f5(c,d,e) + X[12] + 0xa953fd4e, 8) + a; d = RL(d, 10); + a = RL(a + f5(b,c,d) + X[ 2] + 0xa953fd4e, 13) + e; c = RL(c, 10); + e = RL(e + f5(a,b,c) + X[10] + 0xa953fd4e, 12) + d; b = RL(b, 10); + d = RL(d + f5(e,a,b) + X[14] + 0xa953fd4e, 5) + c; a = RL(a, 10); + c = RL(c + f5(d,e,a) + X[ 1] + 0xa953fd4e, 12) + b; e = RL(e, 10); + b = RL(b + f5(c,d,e) + X[ 3] + 0xa953fd4e, 13) + a; d = RL(d, 10); + a = RL(a + f5(b,c,d) + X[ 8] + 0xa953fd4e, 14) + e; c = RL(c, 10); + e = RL(e + f5(a,b,c) + X[11] + 0xa953fd4e, 11) + d; b = RL(b, 10); + d = RL(d + f5(e,a,b) + X[ 6] + 0xa953fd4e, 8) + c; a = RL(a, 10); + c = RL(c + f5(d,e,a) + X[15] + 0xa953fd4e, 5) + b; e = RL(e, 10); + b = RL(b + f5(c,d,e) + X[13] + 0xa953fd4e, 6) + a; d = RL(d, 10); + + // right + bb = RL(bb + f1(cc,dd,ee) + X[12], 8) + aa; dd = RL(dd, 10); + aa = RL(aa + f1(bb,cc,dd) + X[15], 5) + ee; cc = RL(cc, 10); + ee = RL(ee + f1(aa,bb,cc) + X[10], 12) + dd; bb = RL(bb, 10); + dd = RL(dd + f1(ee,aa,bb) + X[ 4], 9) + cc; aa = RL(aa, 10); + cc = RL(cc + f1(dd,ee,aa) + X[ 1], 12) + bb; ee = RL(ee, 10); + bb = RL(bb + f1(cc,dd,ee) + X[ 5], 5) + aa; dd = RL(dd, 10); + aa = RL(aa + f1(bb,cc,dd) + X[ 8], 14) + ee; cc = RL(cc, 10); + ee = RL(ee + f1(aa,bb,cc) + X[ 7], 6) + dd; bb = RL(bb, 10); + dd = RL(dd + f1(ee,aa,bb) + X[ 6], 8) + cc; aa = RL(aa, 10); + cc = RL(cc + f1(dd,ee,aa) + X[ 2], 13) + bb; ee = RL(ee, 10); + bb = RL(bb + f1(cc,dd,ee) + X[13], 6) + aa; dd = RL(dd, 10); + aa = RL(aa + f1(bb,cc,dd) + X[14], 5) + ee; cc = RL(cc, 10); + ee = RL(ee + f1(aa,bb,cc) + X[ 0], 15) + dd; bb = RL(bb, 10); + dd = RL(dd + f1(ee,aa,bb) + X[ 3], 13) + cc; aa = RL(aa, 10); + cc = RL(cc + f1(dd,ee,aa) + X[ 9], 11) + bb; ee = RL(ee, 10); + bb = RL(bb + f1(cc,dd,ee) + X[11], 11) + aa; dd = RL(dd, 10); + + dd += c + H1; + H1 = H2 + d + ee; + H2 = H3 + e + aa; + H3 = H4 + a + bb; + H4 = H0 + b + cc; + H0 = dd; + + // + // reset the offset and clean out the word buffer. + // + xOff = 0; + for (int i = 0; i != X.length; i++) + { + X[i] = 0; + } + } + + public Memoable copy() + { + return new RIPEMD160Digest(this); + } + + public void reset(Memoable other) + { + RIPEMD160Digest d = (RIPEMD160Digest)other; + + copyIn(d); + } +} |