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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8. Note: this package includes the NTRU encryption algorithms.

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package org.bouncycastle.crypto.digests;


import org.bouncycastle.util.Memoable;

/**
 * implementation of RIPEMD 320.
 * 

* Note: this implementation offers the same level of security * as RIPEMD 160. */ public class RIPEMD320Digest extends GeneralDigest { private static final int DIGEST_LENGTH = 40; private int H0, H1, H2, H3, H4, H5, H6, H7, H8, H9; // IV's private int[] X = new int[16]; private int xOff; /** * Standard constructor */ public RIPEMD320Digest() { reset(); } /** * Copy constructor. This will copy the state of the provided * message digest. */ public RIPEMD320Digest(RIPEMD320Digest t) { super(t); doCopy(t); } private void doCopy(RIPEMD320Digest t) { super.copyIn(t); H0 = t.H0; H1 = t.H1; H2 = t.H2; H3 = t.H3; H4 = t.H4; H5 = t.H5; H6 = t.H6; H7 = t.H7; H8 = t.H8; H9 = t.H9; System.arraycopy(t.X, 0, X, 0, t.X.length); xOff = t.xOff; } public String getAlgorithmName() { return "RIPEMD320"; } 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); unpackWord(H5, out, outOff + 20); unpackWord(H6, out, outOff + 24); unpackWord(H7, out, outOff + 28); unpackWord(H8, out, outOff + 32); unpackWord(H9, out, outOff + 36); 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; H5 = 0x76543210; H6 = 0xFEDCBA98; H7 = 0x89ABCDEF; H8 = 0x01234567; H9 = 0x3C2D1E0F; 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; int t; a = H0; b = H1; c = H2; d = H3; e = H4; aa = H5; bb = H6; cc = H7; dd = H8; ee = H9; // // 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); t = a; a = aa; aa = t; // // 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); t = b; b = bb; bb = t; // // 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); t = c; c = cc; cc = t; // // 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); t = d; d = dd; dd = t; // // 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); // // do (e, ee) swap as part of assignment. // H0 += a; H1 += b; H2 += c; H3 += d; H4 += ee; H5 += aa; H6 += bb; H7 += cc; H8 += dd; H9 += e; // // 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 RIPEMD320Digest(this); } public void reset(Memoable other) { RIPEMD320Digest d = (RIPEMD320Digest)other; doCopy(d); } }





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