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r12777@catbus: nickm | 2007-05-16 21:52:23 -0400

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Fix dumb bug introduced in r10199


svn:r10202
This commit is contained in:
Nick Mathewson 2007-05-17 01:52:26 +00:00
parent b4bd9f772c
commit 836328be2e
1 changed files with 3 additions and 1 deletions
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4
src/common/crypto.c
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@ -1494,12 +1494,14 @@ crypto_expand_key_material(const char *key_in, size_t key_in_len,
tor_assert(key_out_len <= DIGEST_LEN*256);
memcpy(tmp, key_in, key_in_len);
for (cp = key_out, i=0; key_out_len >= DIGEST_LEN;
for (cp = key_out, i=0; key_out_len;
++i, cp += DIGEST_LEN, key_out_len -= DIGEST_LEN) {
tmp[key_in_len] = i;
if (crypto_digest(digest, tmp, key_in_len+1))
goto err;
memcpy(cp, digest, MIN(DIGEST_LEN, key_out_len));
if (key_out_len < DIGEST_LEN)
break;
}
memset(tmp, 0, key_in_len+1);
tor_free(tmp);