Add symmetric ciphers

1 files changed, 41 insertions, 0 deletions

diff --git a/include/ncrypto/ncrypto.h b/include/ncrypto/ncrypto.h
index af4f518..8da49c0 100644
--- a/include/ncrypto/ncrypto.h
+++ b/include/ncrypto/ncrypto.h
@@ -53,4 +53,45 @@ CK_RV ncr_digest_standalone (CK_MECHANISM_TYPE mech, void *dest,
 			     size_t *dest_size_ptr, const void *data,
 			     size_t data_size);
 
+struct ncr_symm_cipher_session;
+
+struct ncr_symm_key;
+
+CK_RV ncr_symm_key_create (struct ncr_symm_key **key, CK_KEY_TYPE type,
+			   const void *value, size_t value_size);
+CK_RV ncr_symm_key_destroy (struct ncr_symm_key *key);
+
+/* Session lifetime management. */
+CK_RV ncr_symm_cipher_alloc (struct ncr_symm_cipher_session **sess,
+			     CK_MECHANISM_TYPE mech);
+CK_RV ncr_symm_cipher_free (struct ncr_symm_cipher_session *sess);
+/* Use either ncr_symm_cipher_encrypt_{init,update,final} (), or
+   ncr_symm_cipher_{encrypt_init,encrypt} ().  After finishing such a call
+   sequence, a new sequence can be started within the same session.  Same for
+   decryption sequences. */
+CK_RV ncr_symm_cipher_encrypt_init (struct ncr_symm_cipher_session *sess,
+				    struct ncr_symm_key *key,
+				    const void *param, size_t param_size);
+CK_RV ncr_symm_cipher_encrypt_update (struct ncr_symm_cipher_session *sess,
+				      void *dest, size_t *dest_size_ptr,
+				      const void *src, size_t src_size);
+CK_RV ncr_symm_cipher_encrypt_final (struct ncr_symm_cipher_session *sess,
+				     void *dest, size_t *dest_size_ptr,
+				     const void *src, size_t src_size);
+CK_RV ncr_symm_cipher_encrypt (struct ncr_symm_cipher_session *sess, void *dest,
+			       size_t *dest_size_ptr, const void *src,
+			       size_t src_size);
+CK_RV ncr_symm_cipher_decrypt_init (struct ncr_symm_cipher_session *sess,
+				    struct ncr_symm_key *key,
+				    const void *param, size_t param_size);
+CK_RV ncr_symm_cipher_decrypt_update (struct ncr_symm_cipher_session *sess,
+				      void *dest, size_t *dest_size_ptr,
+				      const void *src, size_t src_size);
+CK_RV ncr_symm_cipher_decrypt_final (struct ncr_symm_cipher_session *sess,
+				     void *dest, size_t *dest_size_ptr,
+				     const void *src, size_t src_size);
+CK_RV ncr_symm_cipher_decrypt (struct ncr_symm_cipher_session *sess, void *dest,
+			       size_t *dest_size_ptr, const void *src,
+			       size_t src_size);
+
 #endif