Re-seeding hash between iterations with previous outputHEADmaster

1 files changed, 5 insertions, 0 deletions

diff --git a/main.c b/main.c
index fe63404..712e1c0 100644
--- a/main.c
+++ b/main.c
@@ -426,6 +426,7 @@ hexdump(byte *input, int len) {
 static struct {

 	byte	seed_sequence[4];	/* sequence number in PRNG sequence */

 	byte	seed_random[RMDbytes];	/* 160 bits collected at start */

+	byte	seed_previous[RMDbytes];	/* 160 bits from previous iteration */

 	byte	seed_owner[RMDbytes];	/* 160 bit hash of owner ident */

 } seed;

 

@@ -638,6 +639,10 @@ main (int argc, char *argv[])
 			seed.seed_sequence[2] = (seqno>>16) & 0xFF;

 			seed.seed_sequence[3] = (seqno>>24) & 0xFF;

 			/*

+			 * Seed the next iteration with the current output

+			 */

+			memcpy(seed.seed_previous, hashcode, RMDbytes);

+			/*

 			 * Run all the bits through the hash

 			 */

 			hashcode = RMDhash((byte *) &seed, sizeof(seed));