Mercurial > dropbear

comparison dbrandom.c @ 1773:c3ca130d193a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fuzzing - avoid sha1 for random seed every iteration
author Matt Johnston <matt@ucc.asn.au>
date Sun, 01 Nov 2020 14:01:37 +0800
parents 517fb7b62438
children 833bf9947603
comparison
equal deleted inserted replaced
1772:0cc85b4a4abb 1773:c3ca130d193a
149 #endif 149 #endif
150 } 150 }
151 151
152 #if DROPBEAR_FUZZ 152 #if DROPBEAR_FUZZ
153 void fuzz_seed(const unsigned char* dat, unsigned int len) { 153 void fuzz_seed(const unsigned char* dat, unsigned int len) {
154 hash_state hs; 154 static unsigned char keep_pool[SHA1_HASH_SIZE];
155 sha1_init(&hs); 155 static int once = 0;
156 sha1_process(&hs, "fuzzfuzzfuzz", strlen("fuzzfuzzfuzz")); 156 if (!once) {
157 sha1_process(&hs, dat, len); 157 once = 1;
158 sha1_done(&hs, hashpool); 158 hash_state hs;
159 159 sha1_init(&hs);
160 sha1_process(&hs, "fuzzfuzzfuzz", strlen("fuzzfuzzfuzz"));
161 sha1_process(&hs, dat, len);
162 sha1_done(&hs, keep_pool);
163 }
164 memcpy(hashpool, keep_pool, sizeof(keep_pool));
160 counter = 0; 165 counter = 0;
161 donerandinit = 1; 166 donerandinit = 1;
162 } 167 }
163 #endif 168 #endif
164 169