Implements message delivery.

Adds a minimum number of messages per mix.
Embeds the destination in the message.
Clients now send messages to themselves.

4 files changed, 15 insertions, 1 deletions

diff --git a/libcmix-crypto/api.h b/libcmix-crypto/api.h
index caf97b6..0fa4916 100644
--- a/libcmix-crypto/api.h
+++ b/libcmix-crypto/api.h
@@ -66,6 +66,11 @@ typedef GroupElement(*ArrayToElement)(char const*, size_t size, bool);
 typedef void(*PubKeyHashGetter)(char** buffer, size_t* len, GroupElement const pub);
 
 /*!
+ *
+ */
+typedef size_t(*PubKeyHashLengthGetter)();
+
+/*!
  * \brief PublicShareAdder typedef
  */
 typedef void(*PublicShareAdder)(GroupElement*, char const*, size_t, GroupElement);
@@ -124,8 +129,9 @@ struct Api {
 	KeyPairDeleter free_keypair; ///< Pointer to keypair deletor function
 	ElementToArray element_to_array; ///< Get the array representation of a public key
 	BufferDeleter free_buffer; ///< frees library allocated buffers.
-	ArrayToElement array_to_element; ///< The the GroupElement representation of this array;
+	ArrayToElement array_to_element; ///< The the GroupElement representation of this array.
 	PubKeyHashGetter get_pub_key_hash; ///< Get the hash of the public key.
+	PubKeyHashLengthGetter get_pub_key_hash_length; ///< Get the length of the pubkey hash.
 	GroupElementGetter get_group_element; ///< get group element
 	GroupElementArraySizeGetter get_group_element_array_size; ///< Return the size required to store a groupelement in an array;
 	GroupElementDeleter free_group_element; ///< frees a base type of the cryptolibrary.
diff --git a/libcmix-crypto/elgamal/elgamal.c b/libcmix-crypto/elgamal/elgamal.c
index 8f26a3c..399d952 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,
 		.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,
 		.get_group_element_array_size = elgamal_get_group_element_array_size,
 		.free_group_element = elgamal_delete_group_element,
diff --git a/libcmix-crypto/elgamal/elgamal.h b/libcmix-crypto/elgamal/elgamal.h
index f937899..1fe4447 100644
--- a/libcmix-crypto/elgamal/elgamal.h
+++ b/libcmix-crypto/elgamal/elgamal.h
@@ -24,6 +24,8 @@ extern ArrayToElement elgamal_array_to_element;
 
 extern PubKeyHashGetter elgamal_get_pub_key_hash;
 
+extern PubKeyHashLengthGetter elgamal_get_pub_key_hash_length;
+
 extern GroupElementGetter elgamal_get_group_element;
 
 extern GroupElementDeleter elgamal_delete_group_element;
diff --git a/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c b/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c
index c9db28c..28c61c3 100644
--- a/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c
+++ b/libcmix-crypto/elgamal/gcrypt/gcrypt_elgamal.c
@@ -158,6 +158,10 @@ void gcrypt_elgamal_get_pub_key_hash(char** buffer, size_t* len, GroupElement co
 	gcry_sexp_release(pubkey);
 }
 
+size_t gcrypt_elgamal_get_pub_key_hash_length() {
+	return 20u;
+}
+
 void* gcrypt_elgamal_get_group_element(bool secure) {
 	size_t parse_error_offset;
 	gcry_error_t error;
@@ -337,6 +341,7 @@ 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;
 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;
 GroupElementDeleter elgamal_delete_group_element = &gcrypt_elgamal_delete_group_element;
 KeyExchangeValueGetter elgamal_get_key_exchange_value = &gcrypt_elgamal_get_key_exchange_value;