New file.

(gcm_aes_set_key): New function.
(gcm_aes_set_iv): Likewise.
(gcm_aes_auth): Likewise.
(gcm_aes_encrypt): Likewise.
(gcm_aes_decrypt): Likewise.
(gcm_aes_digest): Likewise.

Rev: nettle/gcm-aes.c:1.1

diff --git a/gcm-aes.c b/gcm-aes.c
new file mode 100644 (file)
index 0000000..b4fabf7
--- /dev/null
+++ b/gcm-aes.c
@@ -0,0 +1,74 @@
+/* gcm_aes.c
+ *
+ * Galois counter mode using AES as the underlying cipher.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2011 Niels Möller
+ *
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#include "gcm.h"
+
+void
+gcm_aes_set_key(struct gcm_aes_ctx *ctx, unsigned length, const uint8_t *key)
+{
+  GCM_SET_KEY(ctx, aes_set_encrypt_key, (nettle_crypt_func *) aes_encrypt,
+             length, key);
+}
+
+void
+gcm_aes_set_iv(struct gcm_aes_ctx *ctx,
+              unsigned length, const uint8_t *iv)
+{
+  gcm_set_iv(&ctx->gcm, length, iv);
+}
+
+/* FIXME: Rename to gcm_aes_update, for consistency with other hash
+   and mac functions? */
+void
+gcm_aes_auth(struct gcm_aes_ctx *ctx, unsigned length, const uint8_t *data)
+{
+  GCM_AUTH(ctx, (nettle_crypt_func *) aes_encrypt,
+          length, data);
+}
+
+void
+gcm_aes_encrypt(struct gcm_aes_ctx *ctx,
+               unsigned length, uint8_t *dst, const uint8_t *src)
+{
+  GCM_ENCRYPT(ctx, (nettle_crypt_func *) aes_encrypt,
+             length, dst, src);
+}
+
+void
+gcm_aes_decrypt(struct gcm_aes_ctx *ctx,
+               unsigned length, uint8_t *dst, const uint8_t *src)
+{
+  GCM_DECRYPT(ctx, (nettle_crypt_func *) aes_encrypt,
+             length, dst, src);
+}
+
+void
+gcm_aes_digest(struct gcm_aes_ctx *ctx,
+              unsigned length, uint8_t *digest)
+{
+  GCM_DIGEST(ctx, (nettle_crypt_func *) aes_encrypt,
+            length, digest);
+  
+}