#include "hash.h" #include "hash_ctxt.h" #include "system.h" SHA256_DIGEST sha256(const void *message, size_t message_len) { SHA256_CTX ctxt; sha256_init(&ctxt); sha256_update(&ctxt, message, message_len); return sha256_finish(&ctxt); } void sha256_str(SHA256_DIGEST digest, char *str, size_t max_len) { unsigned i; if(max_len > SHA256_MAXSTRSIZE) { max_len = SHA256_MAXSTRSIZE; } str[max_len - 1] = 0; max_len -= 1; for(i = 0; i < max_len; i++) { static const char HEX[] = "0123456789abcdef"; int index = i / 2; if(i % 2 == 0) { str[i] = HEX[digest.data[index] >> 4]; } else { str[i] = HEX[digest.data[index] & 0xf]; } } } int sha256_comp(SHA256_DIGEST digest1, SHA256_DIGEST digest2) { return mem_comp(digest1.data, digest2.data, sizeof(digest1.data)); }