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path: root/app/openssl/crypto/evp/evp_key.c
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Diffstat (limited to 'app/openssl/crypto/evp/evp_key.c')
-rw-r--r--app/openssl/crypto/evp/evp_key.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/app/openssl/crypto/evp/evp_key.c b/app/openssl/crypto/evp/evp_key.c
index 839d6a3a..7961fbeb 100644
--- a/app/openssl/crypto/evp/evp_key.c
+++ b/app/openssl/crypto/evp/evp_key.c
@@ -120,7 +120,7 @@ int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
unsigned char md_buf[EVP_MAX_MD_SIZE];
int niv,nkey,addmd=0;
unsigned int mds=0,i;
-
+ int rv = 0;
nkey=type->key_len;
niv=type->iv_len;
OPENSSL_assert(nkey <= EVP_MAX_KEY_LENGTH);
@@ -134,17 +134,24 @@ int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
if (!EVP_DigestInit_ex(&c,md, NULL))
return 0;
if (addmd++)
- EVP_DigestUpdate(&c,&(md_buf[0]),mds);
- EVP_DigestUpdate(&c,data,datal);
+ if (!EVP_DigestUpdate(&c,&(md_buf[0]),mds))
+ goto err;
+ if (!EVP_DigestUpdate(&c,data,datal))
+ goto err;
if (salt != NULL)
- EVP_DigestUpdate(&c,salt,PKCS5_SALT_LEN);
- EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds);
+ if (!EVP_DigestUpdate(&c,salt,PKCS5_SALT_LEN))
+ goto err;
+ if (!EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds))
+ goto err;
for (i=1; i<(unsigned int)count; i++)
{
- EVP_DigestInit_ex(&c,md, NULL);
- EVP_DigestUpdate(&c,&(md_buf[0]),mds);
- EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds);
+ if (!EVP_DigestInit_ex(&c,md, NULL))
+ goto err;
+ if (!EVP_DigestUpdate(&c,&(md_buf[0]),mds))
+ goto err;
+ if (!EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds))
+ goto err;
}
i=0;
if (nkey)
@@ -173,8 +180,10 @@ int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
}
if ((nkey == 0) && (niv == 0)) break;
}
+ rv = type->key_len;
+ err:
EVP_MD_CTX_cleanup(&c);
OPENSSL_cleanse(&(md_buf[0]),EVP_MAX_MD_SIZE);
- return(type->key_len);
+ return rv;
}