Hakase/openssl-custom
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Hakase
2019-05-23 12:02:56 +09:00
parent a7bf77581f
commit 64d458de91
185 changed files with 5859 additions and 2853 deletions
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crypto/evp/p5_crpt.c
+14 -6
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@@ -28,7 +28,7 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
EVP_MD_CTX *ctx;
unsigned char md_tmp[EVP_MAX_MD_SIZE];
unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
int i;
int i, ivl, kl;
PBEPARAM *pbe;
int saltlen, iter;
unsigned char *salt;
@@ -48,6 +48,17 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
return 0;
}
ivl = EVP_CIPHER_iv_length(cipher);
if (ivl < 0 || ivl > 16) {
EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN, EVP_R_INVALID_IV_LENGTH);
return 0;
}
kl = EVP_CIPHER_key_length(cipher);
if (kl < 0 || kl > (int)sizeof(md_tmp)) {
EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN, EVP_R_INVALID_KEY_LENGTH);
return 0;
}
if (!pbe->iter)
iter = 1;
else
@@ -86,11 +97,8 @@ int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
if (!EVP_DigestFinal_ex(ctx, md_tmp, NULL))
goto err;
}
OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));
memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
EVP_CIPHER_iv_length(cipher));
memcpy(key, md_tmp, kl);
memcpy(iv, md_tmp + (16 - ivl), ivl);
if (!EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de))
goto err;
OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);