Source Code Cross Referenced for RIPEMD320Digest.java in  » Security » Bouncy-Castle » org » bouncycastle » crypto » digests » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Security » Bouncy Castle » org.bouncycastle.crypto.digests 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package org.bouncycastle.crypto.digests;
002:
003:        /**
004:         * implementation of RIPEMD 320.
005:         * <p>
006:         * <b>Note:</b> this implementation offers the same level of security
007:         * as RIPEMD 160.
008:         */
009:        public class RIPEMD320Digest extends GeneralDigest {
010:            private static final int DIGEST_LENGTH = 40;
011:
012:            private int H0, H1, H2, H3, H4, H5, H6, H7, H8, H9; // IV's
013:
014:            private int[] X = new int[16];
015:            private int xOff;
016:
017:            /**
018:             * Standard constructor
019:             */
020:            public RIPEMD320Digest() {
021:                reset();
022:            }
023:
024:            /**
025:             * Copy constructor.  This will copy the state of the provided
026:             * message digest.
027:             */
028:            public RIPEMD320Digest(RIPEMD320Digest t) {
029:                super (t);
030:
031:                H0 = t.H0;
032:                H1 = t.H1;
033:                H2 = t.H2;
034:                H3 = t.H3;
035:                H4 = t.H4;
036:                H5 = t.H5;
037:                H6 = t.H6;
038:                H7 = t.H7;
039:                H8 = t.H8;
040:                H9 = t.H9;
041:
042:                System.arraycopy(t.X, 0, X, 0, t.X.length);
043:                xOff = t.xOff;
044:            }
045:
046:            public String getAlgorithmName() {
047:                return "RIPEMD320";
048:            }
049:
050:            public int getDigestSize() {
051:                return DIGEST_LENGTH;
052:            }
053:
054:            protected void processWord(byte[] in, int inOff) {
055:                X[xOff++] = (in[inOff] & 0xff) | ((in[inOff + 1] & 0xff) << 8)
056:                        | ((in[inOff + 2] & 0xff) << 16)
057:                        | ((in[inOff + 3] & 0xff) << 24);
058:
059:                if (xOff == 16) {
060:                    processBlock();
061:                }
062:            }
063:
064:            protected void processLength(long bitLength) {
065:                if (xOff > 14) {
066:                    processBlock();
067:                }
068:
069:                X[14] = (int) (bitLength & 0xffffffff);
070:                X[15] = (int) (bitLength >>> 32);
071:            }
072:
073:            private void unpackWord(int word, byte[] out, int outOff) {
074:                out[outOff] = (byte) word;
075:                out[outOff + 1] = (byte) (word >>> 8);
076:                out[outOff + 2] = (byte) (word >>> 16);
077:                out[outOff + 3] = (byte) (word >>> 24);
078:            }
079:
080:            public int doFinal(byte[] out, int outOff) {
081:                finish();
082:
083:                unpackWord(H0, out, outOff);
084:                unpackWord(H1, out, outOff + 4);
085:                unpackWord(H2, out, outOff + 8);
086:                unpackWord(H3, out, outOff + 12);
087:                unpackWord(H4, out, outOff + 16);
088:                unpackWord(H5, out, outOff + 20);
089:                unpackWord(H6, out, outOff + 24);
090:                unpackWord(H7, out, outOff + 28);
091:                unpackWord(H8, out, outOff + 32);
092:                unpackWord(H9, out, outOff + 36);
093:
094:                reset();
095:
096:                return DIGEST_LENGTH;
097:            }
098:
099:            /**
100:             * reset the chaining variables to the IV values.
101:             */
102:            public void reset() {
103:                super .reset();
104:
105:                H0 = 0x67452301;
106:                H1 = 0xefcdab89;
107:                H2 = 0x98badcfe;
108:                H3 = 0x10325476;
109:                H4 = 0xc3d2e1f0;
110:                H5 = 0x76543210;
111:                H6 = 0xFEDCBA98;
112:                H7 = 0x89ABCDEF;
113:                H8 = 0x01234567;
114:                H9 = 0x3C2D1E0F;
115:
116:                xOff = 0;
117:
118:                for (int i = 0; i != X.length; i++) {
119:                    X[i] = 0;
120:                }
121:            }
122:
123:            /*
124:             * rotate int x left n bits.
125:             */
126:            private final int RL(int x, int n) {
127:                return (x << n) | (x >>> (32 - n));
128:            }
129:
130:            /*
131:             * f1,f2,f3,f4,f5 are the basic RIPEMD160 functions.
132:             */
133:
134:            /*
135:             * rounds 0-15
136:             */
137:            private final int f1(int x, int y, int z) {
138:                return x ^ y ^ z;
139:            }
140:
141:            /*
142:             * rounds 16-31
143:             */
144:            private final int f2(int x, int y, int z) {
145:                return (x & y) | (~x & z);
146:            }
147:
148:            /*
149:             * rounds 32-47
150:             */
151:            private final int f3(int x, int y, int z) {
152:                return (x | ~y) ^ z;
153:            }
154:
155:            /*
156:             * rounds 48-63
157:             */
158:            private final int f4(int x, int y, int z) {
159:                return (x & z) | (y & ~z);
160:            }
161:
162:            /*
163:             * rounds 64-79
164:             */
165:            private final int f5(int x, int y, int z) {
166:                return x ^ (y | ~z);
167:            }
168:
169:            protected void processBlock() {
170:                int a, aa;
171:                int b, bb;
172:                int c, cc;
173:                int d, dd;
174:                int e, ee;
175:                int t;
176:
177:                a = H0;
178:                b = H1;
179:                c = H2;
180:                d = H3;
181:                e = H4;
182:                aa = H5;
183:                bb = H6;
184:                cc = H7;
185:                dd = H8;
186:                ee = H9;
187:
188:                //
189:                // Rounds 1 - 16
190:                //
191:                // left
192:                a = RL(a + f1(b, c, d) + X[0], 11) + e;
193:                c = RL(c, 10);
194:                e = RL(e + f1(a, b, c) + X[1], 14) + d;
195:                b = RL(b, 10);
196:                d = RL(d + f1(e, a, b) + X[2], 15) + c;
197:                a = RL(a, 10);
198:                c = RL(c + f1(d, e, a) + X[3], 12) + b;
199:                e = RL(e, 10);
200:                b = RL(b + f1(c, d, e) + X[4], 5) + a;
201:                d = RL(d, 10);
202:                a = RL(a + f1(b, c, d) + X[5], 8) + e;
203:                c = RL(c, 10);
204:                e = RL(e + f1(a, b, c) + X[6], 7) + d;
205:                b = RL(b, 10);
206:                d = RL(d + f1(e, a, b) + X[7], 9) + c;
207:                a = RL(a, 10);
208:                c = RL(c + f1(d, e, a) + X[8], 11) + b;
209:                e = RL(e, 10);
210:                b = RL(b + f1(c, d, e) + X[9], 13) + a;
211:                d = RL(d, 10);
212:                a = RL(a + f1(b, c, d) + X[10], 14) + e;
213:                c = RL(c, 10);
214:                e = RL(e + f1(a, b, c) + X[11], 15) + d;
215:                b = RL(b, 10);
216:                d = RL(d + f1(e, a, b) + X[12], 6) + c;
217:                a = RL(a, 10);
218:                c = RL(c + f1(d, e, a) + X[13], 7) + b;
219:                e = RL(e, 10);
220:                b = RL(b + f1(c, d, e) + X[14], 9) + a;
221:                d = RL(d, 10);
222:                a = RL(a + f1(b, c, d) + X[15], 8) + e;
223:                c = RL(c, 10);
224:
225:                // right
226:                aa = RL(aa + f5(bb, cc, dd) + X[5] + 0x50a28be6, 8) + ee;
227:                cc = RL(cc, 10);
228:                ee = RL(ee + f5(aa, bb, cc) + X[14] + 0x50a28be6, 9) + dd;
229:                bb = RL(bb, 10);
230:                dd = RL(dd + f5(ee, aa, bb) + X[7] + 0x50a28be6, 9) + cc;
231:                aa = RL(aa, 10);
232:                cc = RL(cc + f5(dd, ee, aa) + X[0] + 0x50a28be6, 11) + bb;
233:                ee = RL(ee, 10);
234:                bb = RL(bb + f5(cc, dd, ee) + X[9] + 0x50a28be6, 13) + aa;
235:                dd = RL(dd, 10);
236:                aa = RL(aa + f5(bb, cc, dd) + X[2] + 0x50a28be6, 15) + ee;
237:                cc = RL(cc, 10);
238:                ee = RL(ee + f5(aa, bb, cc) + X[11] + 0x50a28be6, 15) + dd;
239:                bb = RL(bb, 10);
240:                dd = RL(dd + f5(ee, aa, bb) + X[4] + 0x50a28be6, 5) + cc;
241:                aa = RL(aa, 10);
242:                cc = RL(cc + f5(dd, ee, aa) + X[13] + 0x50a28be6, 7) + bb;
243:                ee = RL(ee, 10);
244:                bb = RL(bb + f5(cc, dd, ee) + X[6] + 0x50a28be6, 7) + aa;
245:                dd = RL(dd, 10);
246:                aa = RL(aa + f5(bb, cc, dd) + X[15] + 0x50a28be6, 8) + ee;
247:                cc = RL(cc, 10);
248:                ee = RL(ee + f5(aa, bb, cc) + X[8] + 0x50a28be6, 11) + dd;
249:                bb = RL(bb, 10);
250:                dd = RL(dd + f5(ee, aa, bb) + X[1] + 0x50a28be6, 14) + cc;
251:                aa = RL(aa, 10);
252:                cc = RL(cc + f5(dd, ee, aa) + X[10] + 0x50a28be6, 14) + bb;
253:                ee = RL(ee, 10);
254:                bb = RL(bb + f5(cc, dd, ee) + X[3] + 0x50a28be6, 12) + aa;
255:                dd = RL(dd, 10);
256:                aa = RL(aa + f5(bb, cc, dd) + X[12] + 0x50a28be6, 6) + ee;
257:                cc = RL(cc, 10);
258:
259:                t = a;
260:                a = aa;
261:                aa = t;
262:
263:                //
264:                // Rounds 16-31
265:                //
266:                // left
267:                e = RL(e + f2(a, b, c) + X[7] + 0x5a827999, 7) + d;
268:                b = RL(b, 10);
269:                d = RL(d + f2(e, a, b) + X[4] + 0x5a827999, 6) + c;
270:                a = RL(a, 10);
271:                c = RL(c + f2(d, e, a) + X[13] + 0x5a827999, 8) + b;
272:                e = RL(e, 10);
273:                b = RL(b + f2(c, d, e) + X[1] + 0x5a827999, 13) + a;
274:                d = RL(d, 10);
275:                a = RL(a + f2(b, c, d) + X[10] + 0x5a827999, 11) + e;
276:                c = RL(c, 10);
277:                e = RL(e + f2(a, b, c) + X[6] + 0x5a827999, 9) + d;
278:                b = RL(b, 10);
279:                d = RL(d + f2(e, a, b) + X[15] + 0x5a827999, 7) + c;
280:                a = RL(a, 10);
281:                c = RL(c + f2(d, e, a) + X[3] + 0x5a827999, 15) + b;
282:                e = RL(e, 10);
283:                b = RL(b + f2(c, d, e) + X[12] + 0x5a827999, 7) + a;
284:                d = RL(d, 10);
285:                a = RL(a + f2(b, c, d) + X[0] + 0x5a827999, 12) + e;
286:                c = RL(c, 10);
287:                e = RL(e + f2(a, b, c) + X[9] + 0x5a827999, 15) + d;
288:                b = RL(b, 10);
289:                d = RL(d + f2(e, a, b) + X[5] + 0x5a827999, 9) + c;
290:                a = RL(a, 10);
291:                c = RL(c + f2(d, e, a) + X[2] + 0x5a827999, 11) + b;
292:                e = RL(e, 10);
293:                b = RL(b + f2(c, d, e) + X[14] + 0x5a827999, 7) + a;
294:                d = RL(d, 10);
295:                a = RL(a + f2(b, c, d) + X[11] + 0x5a827999, 13) + e;
296:                c = RL(c, 10);
297:                e = RL(e + f2(a, b, c) + X[8] + 0x5a827999, 12) + d;
298:                b = RL(b, 10);
299:
300:                // right
301:                ee = RL(ee + f4(aa, bb, cc) + X[6] + 0x5c4dd124, 9) + dd;
302:                bb = RL(bb, 10);
303:                dd = RL(dd + f4(ee, aa, bb) + X[11] + 0x5c4dd124, 13) + cc;
304:                aa = RL(aa, 10);
305:                cc = RL(cc + f4(dd, ee, aa) + X[3] + 0x5c4dd124, 15) + bb;
306:                ee = RL(ee, 10);
307:                bb = RL(bb + f4(cc, dd, ee) + X[7] + 0x5c4dd124, 7) + aa;
308:                dd = RL(dd, 10);
309:                aa = RL(aa + f4(bb, cc, dd) + X[0] + 0x5c4dd124, 12) + ee;
310:                cc = RL(cc, 10);
311:                ee = RL(ee + f4(aa, bb, cc) + X[13] + 0x5c4dd124, 8) + dd;
312:                bb = RL(bb, 10);
313:                dd = RL(dd + f4(ee, aa, bb) + X[5] + 0x5c4dd124, 9) + cc;
314:                aa = RL(aa, 10);
315:                cc = RL(cc + f4(dd, ee, aa) + X[10] + 0x5c4dd124, 11) + bb;
316:                ee = RL(ee, 10);
317:                bb = RL(bb + f4(cc, dd, ee) + X[14] + 0x5c4dd124, 7) + aa;
318:                dd = RL(dd, 10);
319:                aa = RL(aa + f4(bb, cc, dd) + X[15] + 0x5c4dd124, 7) + ee;
320:                cc = RL(cc, 10);
321:                ee = RL(ee + f4(aa, bb, cc) + X[8] + 0x5c4dd124, 12) + dd;
322:                bb = RL(bb, 10);
323:                dd = RL(dd + f4(ee, aa, bb) + X[12] + 0x5c4dd124, 7) + cc;
324:                aa = RL(aa, 10);
325:                cc = RL(cc + f4(dd, ee, aa) + X[4] + 0x5c4dd124, 6) + bb;
326:                ee = RL(ee, 10);
327:                bb = RL(bb + f4(cc, dd, ee) + X[9] + 0x5c4dd124, 15) + aa;
328:                dd = RL(dd, 10);
329:                aa = RL(aa + f4(bb, cc, dd) + X[1] + 0x5c4dd124, 13) + ee;
330:                cc = RL(cc, 10);
331:                ee = RL(ee + f4(aa, bb, cc) + X[2] + 0x5c4dd124, 11) + dd;
332:                bb = RL(bb, 10);
333:
334:                t = b;
335:                b = bb;
336:                bb = t;
337:
338:                //
339:                // Rounds 32-47
340:                //
341:                // left
342:                d = RL(d + f3(e, a, b) + X[3] + 0x6ed9eba1, 11) + c;
343:                a = RL(a, 10);
344:                c = RL(c + f3(d, e, a) + X[10] + 0x6ed9eba1, 13) + b;
345:                e = RL(e, 10);
346:                b = RL(b + f3(c, d, e) + X[14] + 0x6ed9eba1, 6) + a;
347:                d = RL(d, 10);
348:                a = RL(a + f3(b, c, d) + X[4] + 0x6ed9eba1, 7) + e;
349:                c = RL(c, 10);
350:                e = RL(e + f3(a, b, c) + X[9] + 0x6ed9eba1, 14) + d;
351:                b = RL(b, 10);
352:                d = RL(d + f3(e, a, b) + X[15] + 0x6ed9eba1, 9) + c;
353:                a = RL(a, 10);
354:                c = RL(c + f3(d, e, a) + X[8] + 0x6ed9eba1, 13) + b;
355:                e = RL(e, 10);
356:                b = RL(b + f3(c, d, e) + X[1] + 0x6ed9eba1, 15) + a;
357:                d = RL(d, 10);
358:                a = RL(a + f3(b, c, d) + X[2] + 0x6ed9eba1, 14) + e;
359:                c = RL(c, 10);
360:                e = RL(e + f3(a, b, c) + X[7] + 0x6ed9eba1, 8) + d;
361:                b = RL(b, 10);
362:                d = RL(d + f3(e, a, b) + X[0] + 0x6ed9eba1, 13) + c;
363:                a = RL(a, 10);
364:                c = RL(c + f3(d, e, a) + X[6] + 0x6ed9eba1, 6) + b;
365:                e = RL(e, 10);
366:                b = RL(b + f3(c, d, e) + X[13] + 0x6ed9eba1, 5) + a;
367:                d = RL(d, 10);
368:                a = RL(a + f3(b, c, d) + X[11] + 0x6ed9eba1, 12) + e;
369:                c = RL(c, 10);
370:                e = RL(e + f3(a, b, c) + X[5] + 0x6ed9eba1, 7) + d;
371:                b = RL(b, 10);
372:                d = RL(d + f3(e, a, b) + X[12] + 0x6ed9eba1, 5) + c;
373:                a = RL(a, 10);
374:
375:                // right
376:                dd = RL(dd + f3(ee, aa, bb) + X[15] + 0x6d703ef3, 9) + cc;
377:                aa = RL(aa, 10);
378:                cc = RL(cc + f3(dd, ee, aa) + X[5] + 0x6d703ef3, 7) + bb;
379:                ee = RL(ee, 10);
380:                bb = RL(bb + f3(cc, dd, ee) + X[1] + 0x6d703ef3, 15) + aa;
381:                dd = RL(dd, 10);
382:                aa = RL(aa + f3(bb, cc, dd) + X[3] + 0x6d703ef3, 11) + ee;
383:                cc = RL(cc, 10);
384:                ee = RL(ee + f3(aa, bb, cc) + X[7] + 0x6d703ef3, 8) + dd;
385:                bb = RL(bb, 10);
386:                dd = RL(dd + f3(ee, aa, bb) + X[14] + 0x6d703ef3, 6) + cc;
387:                aa = RL(aa, 10);
388:                cc = RL(cc + f3(dd, ee, aa) + X[6] + 0x6d703ef3, 6) + bb;
389:                ee = RL(ee, 10);
390:                bb = RL(bb + f3(cc, dd, ee) + X[9] + 0x6d703ef3, 14) + aa;
391:                dd = RL(dd, 10);
392:                aa = RL(aa + f3(bb, cc, dd) + X[11] + 0x6d703ef3, 12) + ee;
393:                cc = RL(cc, 10);
394:                ee = RL(ee + f3(aa, bb, cc) + X[8] + 0x6d703ef3, 13) + dd;
395:                bb = RL(bb, 10);
396:                dd = RL(dd + f3(ee, aa, bb) + X[12] + 0x6d703ef3, 5) + cc;
397:                aa = RL(aa, 10);
398:                cc = RL(cc + f3(dd, ee, aa) + X[2] + 0x6d703ef3, 14) + bb;
399:                ee = RL(ee, 10);
400:                bb = RL(bb + f3(cc, dd, ee) + X[10] + 0x6d703ef3, 13) + aa;
401:                dd = RL(dd, 10);
402:                aa = RL(aa + f3(bb, cc, dd) + X[0] + 0x6d703ef3, 13) + ee;
403:                cc = RL(cc, 10);
404:                ee = RL(ee + f3(aa, bb, cc) + X[4] + 0x6d703ef3, 7) + dd;
405:                bb = RL(bb, 10);
406:                dd = RL(dd + f3(ee, aa, bb) + X[13] + 0x6d703ef3, 5) + cc;
407:                aa = RL(aa, 10);
408:
409:                t = c;
410:                c = cc;
411:                cc = t;
412:
413:                //
414:                // Rounds 48-63
415:                //
416:                // left
417:                c = RL(c + f4(d, e, a) + X[1] + 0x8f1bbcdc, 11) + b;
418:                e = RL(e, 10);
419:                b = RL(b + f4(c, d, e) + X[9] + 0x8f1bbcdc, 12) + a;
420:                d = RL(d, 10);
421:                a = RL(a + f4(b, c, d) + X[11] + 0x8f1bbcdc, 14) + e;
422:                c = RL(c, 10);
423:                e = RL(e + f4(a, b, c) + X[10] + 0x8f1bbcdc, 15) + d;
424:                b = RL(b, 10);
425:                d = RL(d + f4(e, a, b) + X[0] + 0x8f1bbcdc, 14) + c;
426:                a = RL(a, 10);
427:                c = RL(c + f4(d, e, a) + X[8] + 0x8f1bbcdc, 15) + b;
428:                e = RL(e, 10);
429:                b = RL(b + f4(c, d, e) + X[12] + 0x8f1bbcdc, 9) + a;
430:                d = RL(d, 10);
431:                a = RL(a + f4(b, c, d) + X[4] + 0x8f1bbcdc, 8) + e;
432:                c = RL(c, 10);
433:                e = RL(e + f4(a, b, c) + X[13] + 0x8f1bbcdc, 9) + d;
434:                b = RL(b, 10);
435:                d = RL(d + f4(e, a, b) + X[3] + 0x8f1bbcdc, 14) + c;
436:                a = RL(a, 10);
437:                c = RL(c + f4(d, e, a) + X[7] + 0x8f1bbcdc, 5) + b;
438:                e = RL(e, 10);
439:                b = RL(b + f4(c, d, e) + X[15] + 0x8f1bbcdc, 6) + a;
440:                d = RL(d, 10);
441:                a = RL(a + f4(b, c, d) + X[14] + 0x8f1bbcdc, 8) + e;
442:                c = RL(c, 10);
443:                e = RL(e + f4(a, b, c) + X[5] + 0x8f1bbcdc, 6) + d;
444:                b = RL(b, 10);
445:                d = RL(d + f4(e, a, b) + X[6] + 0x8f1bbcdc, 5) + c;
446:                a = RL(a, 10);
447:                c = RL(c + f4(d, e, a) + X[2] + 0x8f1bbcdc, 12) + b;
448:                e = RL(e, 10);
449:
450:                // right
451:                cc = RL(cc + f2(dd, ee, aa) + X[8] + 0x7a6d76e9, 15) + bb;
452:                ee = RL(ee, 10);
453:                bb = RL(bb + f2(cc, dd, ee) + X[6] + 0x7a6d76e9, 5) + aa;
454:                dd = RL(dd, 10);
455:                aa = RL(aa + f2(bb, cc, dd) + X[4] + 0x7a6d76e9, 8) + ee;
456:                cc = RL(cc, 10);
457:                ee = RL(ee + f2(aa, bb, cc) + X[1] + 0x7a6d76e9, 11) + dd;
458:                bb = RL(bb, 10);
459:                dd = RL(dd + f2(ee, aa, bb) + X[3] + 0x7a6d76e9, 14) + cc;
460:                aa = RL(aa, 10);
461:                cc = RL(cc + f2(dd, ee, aa) + X[11] + 0x7a6d76e9, 14) + bb;
462:                ee = RL(ee, 10);
463:                bb = RL(bb + f2(cc, dd, ee) + X[15] + 0x7a6d76e9, 6) + aa;
464:                dd = RL(dd, 10);
465:                aa = RL(aa + f2(bb, cc, dd) + X[0] + 0x7a6d76e9, 14) + ee;
466:                cc = RL(cc, 10);
467:                ee = RL(ee + f2(aa, bb, cc) + X[5] + 0x7a6d76e9, 6) + dd;
468:                bb = RL(bb, 10);
469:                dd = RL(dd + f2(ee, aa, bb) + X[12] + 0x7a6d76e9, 9) + cc;
470:                aa = RL(aa, 10);
471:                cc = RL(cc + f2(dd, ee, aa) + X[2] + 0x7a6d76e9, 12) + bb;
472:                ee = RL(ee, 10);
473:                bb = RL(bb + f2(cc, dd, ee) + X[13] + 0x7a6d76e9, 9) + aa;
474:                dd = RL(dd, 10);
475:                aa = RL(aa + f2(bb, cc, dd) + X[9] + 0x7a6d76e9, 12) + ee;
476:                cc = RL(cc, 10);
477:                ee = RL(ee + f2(aa, bb, cc) + X[7] + 0x7a6d76e9, 5) + dd;
478:                bb = RL(bb, 10);
479:                dd = RL(dd + f2(ee, aa, bb) + X[10] + 0x7a6d76e9, 15) + cc;
480:                aa = RL(aa, 10);
481:                cc = RL(cc + f2(dd, ee, aa) + X[14] + 0x7a6d76e9, 8) + bb;
482:                ee = RL(ee, 10);
483:
484:                t = d;
485:                d = dd;
486:                dd = t;
487:
488:                //
489:                // Rounds 64-79
490:                //
491:                // left
492:                b = RL(b + f5(c, d, e) + X[4] + 0xa953fd4e, 9) + a;
493:                d = RL(d, 10);
494:                a = RL(a + f5(b, c, d) + X[0] + 0xa953fd4e, 15) + e;
495:                c = RL(c, 10);
496:                e = RL(e + f5(a, b, c) + X[5] + 0xa953fd4e, 5) + d;
497:                b = RL(b, 10);
498:                d = RL(d + f5(e, a, b) + X[9] + 0xa953fd4e, 11) + c;
499:                a = RL(a, 10);
500:                c = RL(c + f5(d, e, a) + X[7] + 0xa953fd4e, 6) + b;
501:                e = RL(e, 10);
502:                b = RL(b + f5(c, d, e) + X[12] + 0xa953fd4e, 8) + a;
503:                d = RL(d, 10);
504:                a = RL(a + f5(b, c, d) + X[2] + 0xa953fd4e, 13) + e;
505:                c = RL(c, 10);
506:                e = RL(e + f5(a, b, c) + X[10] + 0xa953fd4e, 12) + d;
507:                b = RL(b, 10);
508:                d = RL(d + f5(e, a, b) + X[14] + 0xa953fd4e, 5) + c;
509:                a = RL(a, 10);
510:                c = RL(c + f5(d, e, a) + X[1] + 0xa953fd4e, 12) + b;
511:                e = RL(e, 10);
512:                b = RL(b + f5(c, d, e) + X[3] + 0xa953fd4e, 13) + a;
513:                d = RL(d, 10);
514:                a = RL(a + f5(b, c, d) + X[8] + 0xa953fd4e, 14) + e;
515:                c = RL(c, 10);
516:                e = RL(e + f5(a, b, c) + X[11] + 0xa953fd4e, 11) + d;
517:                b = RL(b, 10);
518:                d = RL(d + f5(e, a, b) + X[6] + 0xa953fd4e, 8) + c;
519:                a = RL(a, 10);
520:                c = RL(c + f5(d, e, a) + X[15] + 0xa953fd4e, 5) + b;
521:                e = RL(e, 10);
522:                b = RL(b + f5(c, d, e) + X[13] + 0xa953fd4e, 6) + a;
523:                d = RL(d, 10);
524:
525:                // right
526:                bb = RL(bb + f1(cc, dd, ee) + X[12], 8) + aa;
527:                dd = RL(dd, 10);
528:                aa = RL(aa + f1(bb, cc, dd) + X[15], 5) + ee;
529:                cc = RL(cc, 10);
530:                ee = RL(ee + f1(aa, bb, cc) + X[10], 12) + dd;
531:                bb = RL(bb, 10);
532:                dd = RL(dd + f1(ee, aa, bb) + X[4], 9) + cc;
533:                aa = RL(aa, 10);
534:                cc = RL(cc + f1(dd, ee, aa) + X[1], 12) + bb;
535:                ee = RL(ee, 10);
536:                bb = RL(bb + f1(cc, dd, ee) + X[5], 5) + aa;
537:                dd = RL(dd, 10);
538:                aa = RL(aa + f1(bb, cc, dd) + X[8], 14) + ee;
539:                cc = RL(cc, 10);
540:                ee = RL(ee + f1(aa, bb, cc) + X[7], 6) + dd;
541:                bb = RL(bb, 10);
542:                dd = RL(dd + f1(ee, aa, bb) + X[6], 8) + cc;
543:                aa = RL(aa, 10);
544:                cc = RL(cc + f1(dd, ee, aa) + X[2], 13) + bb;
545:                ee = RL(ee, 10);
546:                bb = RL(bb + f1(cc, dd, ee) + X[13], 6) + aa;
547:                dd = RL(dd, 10);
548:                aa = RL(aa + f1(bb, cc, dd) + X[14], 5) + ee;
549:                cc = RL(cc, 10);
550:                ee = RL(ee + f1(aa, bb, cc) + X[0], 15) + dd;
551:                bb = RL(bb, 10);
552:                dd = RL(dd + f1(ee, aa, bb) + X[3], 13) + cc;
553:                aa = RL(aa, 10);
554:                cc = RL(cc + f1(dd, ee, aa) + X[9], 11) + bb;
555:                ee = RL(ee, 10);
556:                bb = RL(bb + f1(cc, dd, ee) + X[11], 11) + aa;
557:                dd = RL(dd, 10);
558:
559:                //
560:                // do (e, ee) swap as part of assignment.
561:                //
562:
563:                H0 += a;
564:                H1 += b;
565:                H2 += c;
566:                H3 += d;
567:                H4 += ee;
568:                H5 += aa;
569:                H6 += bb;
570:                H7 += cc;
571:                H8 += dd;
572:                H9 += e;
573:
574:                //
575:                // reset the offset and clean out the word buffer.
576:                //
577:                xOff = 0;
578:                for (int i = 0; i != X.length; i++) {
579:                    X[i] = 0;
580:                }
581:            }
582:        }
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