dev/random/yarrow.c

59 static struct random_state {
77 } random_state;
96 	random_state.counter.qword[0] = 0UL;
97 	random_state.counter.qword[1] = 0UL;
106 	random_state.counter.qword[0]++;
107 	if (!random_state.counter.qword[0])
108 		random_state.counter.qword[1]++;
134 	pl = random_state.which;
135 	source = &random_state.pool[pl].source[event->source];
136 	randomdev_hash_iterate(&random_state.pool[pl].hash, event,
144 			if (random_state.pool[pl].source[src].bits
145 				> random_state.pool[pl].thresh)
155 	if (overthreshhold[SLOW] >= random_state.slowoverthresh)
159 	random_state.which = !random_state.which;
179 		&random_state.gengateinterval, 10,
186 		&random_state.bins, 10,
193 		&random_state.pool[0].thresh, (3*(BLOCKSIZE*8))/4,
200 		&random_state.pool[1].thresh, (BLOCKSIZE*8),
207 		&random_state.slowoverthresh, 2,
211 	random_state.gengateinterval = 10;
212 	random_state.bins = 10;
213 	random_state.pool[0].thresh = (3*(BLOCKSIZE*8))/4;
214 	random_state.pool[1].thresh = (BLOCKSIZE*8);
215 	random_state.slowoverthresh = 2;
216 	random_state.which = FAST;
220 		randomdev_hash_init(&random_state.pool[i].hash);
261 			&random_state.pool[SLOW].hash,
264 		&random_state.pool[FAST].hash, sizeof(struct randomdev_hash));
271 	if (random_state.bins > TIMEBIN)
272 		random_state.bins = TIMEBIN;
273 	for (i = 1; i < random_state.bins; i++) {
290 	randomdev_hash_iterate(&context, &random_state.key, KEYSIZE);
291 	for (i = 1; i < random_state.bins; i++)
294 	randomdev_encrypt_init(&random_state.key, temp);
299 	randomdev_encrypt(&random_state.key, random_state.counter.byte, temp, BLOCKSIZE);
300 	memcpy(random_state.counter.byte, temp, BLOCKSIZE);
306 			random_state.pool[i].source[j].bits = 0;
344 		random_state.outputblocks = 0;
351 			randomdev_encrypt(&random_state.key, random_state.counter.byte, genval, BLOCKSIZE);
354 			if (++random_state.outputblocks >= random_state.gengateinterval) {
356 				random_state.outputblocks = 0;
365 			randomdev_encrypt(&random_state.key, random_state.counter.byte, genval, BLOCKSIZE);
368 			if (++random_state.outputblocks >= random_state.gengateinterval) {
370 				random_state.outputblocks = 0;
392 		randomdev_encrypt(&random_state.key, random_state.counter.byte, temp + i, BLOCKSIZE);
395 	randomdev_encrypt_init(&random_state.key, temp);
408 		printf(" %d", random_state.pool[FAST].source[i].bits);
412 		printf(" %d", random_state.pool[SLOW].source[i].bits);