Don't require tag before ciphertext in AESGCM mode

[openssl.git] / crypto / evp / evp_lib.c

diff --git a/crypto/evp/evp_lib.c b/crypto/evp/evp_lib.c
index 745475bebcd4892499a7e0082d96de774c2786b0..b180e4828a8c8901727ffb7676203add0d82ba5c 100644 (file)
--- a/crypto/evp/evp_lib.c
+++ b/crypto/evp/evp_lib.c
@@ -67,6 +67,8 @@ int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
 
        if (c->cipher->set_asn1_parameters != NULL)
                ret=c->cipher->set_asn1_parameters(c,type);
+       else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
+               ret=EVP_CIPHER_set_asn1_iv(c, type);
        else
                ret=-1;
        return(ret);
@@ -78,6 +80,8 @@ int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
 
        if (c->cipher->get_asn1_parameters != NULL)
                ret=c->cipher->get_asn1_parameters(c,type);
+       else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1)
+               ret=EVP_CIPHER_get_asn1_iv(c, type);
        else
                ret=-1;
        return(ret);
@@ -159,6 +163,12 @@ int EVP_CIPHER_type(const EVP_CIPHER *ctx)
 
                return NID_des_cfb64;
 
+               case NID_des_ede3_cfb64:
+               case NID_des_ede3_cfb8:
+               case NID_des_ede3_cfb1:
+
+               return NID_des_cfb64;
+
                default:
                /* Check it has an OID and it is valid */
                otmp = OBJ_nid2obj(nid);
@@ -225,7 +235,7 @@ int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
 
 int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
        {
-       return ctx->cipher->key_len;
+       return ctx->key_len;
        }
 
 int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
@@ -255,11 +265,23 @@ int EVP_MD_pkey_type(const EVP_MD *md)
 
 int EVP_MD_size(const EVP_MD *md)
        {
+       if (!md)
+               {
+               EVPerr(EVP_F_EVP_MD_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL);
+               return -1;
+               }
        return md->md_size;
        }
 
+unsigned long EVP_MD_flags(const EVP_MD *md)
+       {
+       return md->flags;
+       }
+
 const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
        {
+       if (!ctx)
+               return NULL;
        return ctx->digest;
        }
 
@@ -277,3 +299,18 @@ int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
        {
        return (ctx->flags & flags);
        }
+
+void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
+       {
+       ctx->flags |= flags;
+       }
+
+void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
+       {
+       ctx->flags &= ~flags;
+       }
+
+int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
+       {
+       return (ctx->flags & flags);
+       }