simplified the OpenSSL hasher a bit

[strongswan.git] / src / libstrongswan / plugins / openssl / openssl_hasher.c

diff --git a/src/libstrongswan/plugins/openssl/openssl_hasher.c b/src/libstrongswan/plugins/openssl/openssl_hasher.c
index 8c8223a..b70b9da 100644 (file)
--- a/src/libstrongswan/plugins/openssl/openssl_hasher.c
+++ b/src/libstrongswan/plugins/openssl/openssl_hasher.c
@@ -103,11 +103,6 @@ static size_t get_hash_size(private_openssl_hasher_t *this)
  */
 static void reset(private_openssl_hasher_t *this)
 {
-       if (this->ctx)
-       {
-               EVP_MD_CTX_destroy(this->ctx);
-       }
-       this->ctx = EVP_MD_CTX_create();
        EVP_DigestInit_ex(this->ctx, this->hasher, NULL);
 }
 
@@ -147,10 +142,7 @@ static void allocate_hash(private_openssl_hasher_t *this, chunk_t chunk,
  */
 static void destroy (private_openssl_hasher_t *this)
 {
-       if (this->ctx)
-       {
-               EVP_MD_CTX_destroy(this->ctx);
-       }
+       EVP_MD_CTX_destroy(this->ctx);
        free(this);
 }
 
@@ -184,9 +176,9 @@ openssl_hasher_t *openssl_hasher_create(hash_algorithm_t algo)
        this->public.hasher_interface.reset = (void (*) (hasher_t*))reset;
        this->public.hasher_interface.destroy = (void (*) (hasher_t*))destroy;
        
-       this->ctx = NULL;
+       this->ctx = EVP_MD_CTX_create();
        
-       /* initialize */
+       /* initialization */
        reset(this);
        
        return &this->public;