diff options
Diffstat (limited to 'random/gnupg-random.c')
| -rw-r--r-- | random/gnupg-random.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/random/gnupg-random.c b/random/gnupg-random.c index 3cf78121..a4df6947 100644 --- a/random/gnupg-random.c +++ b/random/gnupg-random.c @@ -276,23 +276,21 @@ mix_pool(byte *pool) #if DIGESTLEN != 20 #error must have a digest length of 20 for ripe-md-160 #endif - /* loop over the pool */ + /* pool -> pool' */ pend = pool + POOLSIZE; memcpy(hashbuf, pend - DIGESTLEN, DIGESTLEN ); memcpy(hashbuf+DIGESTLEN, pool, BLOCKLEN-DIGESTLEN); rmd160_mixblock( &md, hashbuf); - memcpy(pool, hashbuf, 20 ); + memcpy(pool, hashbuf, DIGESTLEN); + /* Loop for the remaining iterations. */ p = pool; for( n=1; n < POOLBLOCKS; n++ ) { - memcpy(hashbuf, p, DIGESTLEN ); - - p += DIGESTLEN; - if( p+DIGESTLEN+BLOCKLEN < pend ) - memcpy(hashbuf+DIGESTLEN, p+DIGESTLEN, BLOCKLEN-DIGESTLEN); + if( p + BLOCKLEN < pend ) + memcpy(hashbuf, p, BLOCKLEN); else { - byte *pp = p+DIGESTLEN; - for(i=DIGESTLEN; i < BLOCKLEN; i++ ) { + byte *pp = p; + for(i=0; i < BLOCKLEN; i++ ) { if( pp >= pend ) pp = pool; hashbuf[i] = *pp++; @@ -300,7 +298,8 @@ mix_pool(byte *pool) } rmd160_mixblock( &md, hashbuf); - memcpy(p, hashbuf, 20 ); + p += DIGESTLEN; + memcpy(p, hashbuf, DIGESTLEN); } burn_stack (200); /* for the rmd160_mixblock() */ } |