Adds an api function for elgamal

3 files changed, 9 insertions, 0 deletions

diff --git a/libcmix-crypto/elgamal/elgamal.c b/libcmix-crypto/elgamal/elgamal.c
index d103230..607a155 100644
--- a/libcmix-crypto/elgamal/elgamal.c
+++ b/libcmix-crypto/elgamal/elgamal.c
@@ -11,6 +11,7 @@ struct Api get_elgamal_implementation()
 		.free_buffer = elgamal_free_buffer,
 		.array_to_element = elgamal_array_to_element,
 		.message_to_element = elgamal_message_to_element,
+		.element_to_message = elgamal_element_to_message,
 		.get_pub_key_hash = elgamal_get_pub_key_hash,
 		.get_pub_key_hash_length = elgamal_get_pub_key_hash_length,
 		.get_group_element = elgamal_get_group_element,
diff --git a/libcmix-crypto/elgamal/elgamal.h b/libcmix-crypto/elgamal/elgamal.h
index 4cc3013..9788f95 100644
--- a/libcmix-crypto/elgamal/elgamal.h
+++ b/libcmix-crypto/elgamal/elgamal.h
@@ -24,6 +24,8 @@ extern ArrayToElement elgamal_array_to_element;
 
 extern MessageToElement elgamal_message_to_element;
 
+extern ElementToMessage elgamal_element_to_message;
+
 extern PubKeyHashGetter elgamal_get_pub_key_hash;
 
 extern PubKeyHashLengthGetter elgamal_get_pub_key_hash_length;
diff --git a/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c b/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c
index dff75b1..4e6115c 100644
--- a/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c
+++ b/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c
@@ -149,6 +149,11 @@ GroupElement gcrypt_elgamal_message_to_element(char const* buffer, size_t len, b
 	return gcrypt_elgamal_array_to_element(buffer, len, secure);
 }
 
+void gcrypt_elgamal_element_to_message(unsigned char** buffer, GroupElement el) {
+	size_t len;
+	gcrypt_elgamal_element_to_array(buffer, &len, el);
+}
+
 void gcrypt_elgamal_get_pub_key_hash(char** buffer, size_t* len, GroupElement const pub) {
 	gcry_sexp_t pubkey;
 	gcry_error_t error;
@@ -366,6 +371,7 @@ ElementToArray elgamal_element_to_array = &gcrypt_elgamal_element_to_array;
 BufferDeleter elgamal_free_buffer = &gcrypt_elgamal_free_buffer;
 ArrayToElement elgamal_array_to_element = &gcrypt_elgamal_array_to_element;
 MessageToElement elgamal_message_to_element = &gcrypt_elgamal_message_to_element;
+ElementToMessage elgamal_element_to_message = &gcrypt_elgamal_element_to_message;
 PubKeyHashGetter elgamal_get_pub_key_hash = &gcrypt_elgamal_get_pub_key_hash;
 PubKeyHashLengthGetter elgamal_get_pub_key_hash_length = &gcrypt_elgamal_get_pub_key_hash_length;
 GroupElementGetter elgamal_get_group_element = &gcrypt_elgamal_get_group_element;