2G ems initial

include/nettle/aes.h

@@ -0,0 +1,177 @@
+/* aes.h
+
+   The aes/rijndael block cipher.
+
+   Copyright (C) 2001, 2013 Niels Möller
+
+   This file is part of GNU Nettle.
+
+   GNU Nettle is free software: you can redistribute it and/or
+   modify it under the terms of either:
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at your
+       option) any later version.
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at your
+       option) any later version.
+
+   or both in parallel, as here.
+
+   GNU Nettle 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
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see http://www.gnu.org/licenses/.
+*/
+ 
+#ifndef NETTLE_AES_H_INCLUDED
+#define NETTLE_AES_H_INCLUDED
+
+#include "nettle-types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Name mangling */
+#define aes_set_encrypt_key nettle_aes_set_encrypt_key
+#define aes_set_decrypt_key nettle_aes_set_decrypt_key
+#define aes_invert_key nettle_aes_invert_key
+#define aes_encrypt nettle_aes_encrypt
+#define aes_decrypt nettle_aes_decrypt
+#define aes128_set_encrypt_key nettle_aes128_set_encrypt_key
+#define aes128_set_decrypt_key nettle_aes128_set_decrypt_key
+#define aes128_invert_key nettle_aes128_invert_key
+#define aes128_encrypt nettle_aes128_encrypt
+#define aes128_decrypt nettle_aes128_decrypt
+#define aes192_set_encrypt_key nettle_aes192_set_encrypt_key
+#define aes192_set_decrypt_key nettle_aes192_set_decrypt_key
+#define aes192_invert_key nettle_aes192_invert_key
+#define aes192_encrypt nettle_aes192_encrypt
+#define aes192_decrypt nettle_aes192_decrypt
+#define aes256_set_encrypt_key nettle_aes256_set_encrypt_key
+#define aes256_set_decrypt_key nettle_aes256_set_decrypt_key
+#define aes256_invert_key nettle_aes256_invert_key
+#define aes256_encrypt nettle_aes256_encrypt
+#define aes256_decrypt nettle_aes256_decrypt
+
+#define AES_BLOCK_SIZE 16
+
+#define AES128_KEY_SIZE 16
+#define AES192_KEY_SIZE 24
+#define AES256_KEY_SIZE 32
+#define _AES128_ROUNDS 10
+#define _AES192_ROUNDS 12
+#define _AES256_ROUNDS 14
+
+/* Variable key size between 128 and 256 bits. But the only valid
+ * values are 16 (128 bits), 24 (192 bits) and 32 (256 bits). */
+#define AES_MIN_KEY_SIZE AES128_KEY_SIZE
+#define AES_MAX_KEY_SIZE AES256_KEY_SIZE
+
+/* Older nettle-2.7 interface */
+
+#define AES_KEY_SIZE 32
+
+struct aes_ctx
+{
+  unsigned rounds;  /* number of rounds to use for our key size */
+  uint32_t keys[4*(_AES256_ROUNDS + 1)];  /* maximum size of key schedule */
+};
+
+void
+aes_set_encrypt_key(struct aes_ctx *ctx,
+		    size_t length, const uint8_t *key);
+
+void
+aes_set_decrypt_key(struct aes_ctx *ctx,
+		   size_t length, const uint8_t *key);
+
+void
+aes_invert_key(struct aes_ctx *dst,
+	       const struct aes_ctx *src);
+
+void
+aes_encrypt(const struct aes_ctx *ctx,
+	    size_t length, uint8_t *dst,
+	    const uint8_t *src);
+void
+aes_decrypt(const struct aes_ctx *ctx,
+	    size_t length, uint8_t *dst,
+	    const uint8_t *src);
+
+struct aes128_ctx
+{
+  uint32_t keys[4 * (_AES128_ROUNDS + 1)];
+};
+
+void
+aes128_set_encrypt_key(struct aes128_ctx *ctx, const uint8_t *key);
+void
+aes128_set_decrypt_key(struct aes128_ctx *ctx, const uint8_t *key);
+void
+aes128_invert_key(struct aes128_ctx *dst,
+		  const struct aes128_ctx *src);
+void
+aes128_encrypt(const struct aes128_ctx *ctx,
+	       size_t length, uint8_t *dst,
+	       const uint8_t *src);
+void
+aes128_decrypt(const struct aes128_ctx *ctx,
+	       size_t length, uint8_t *dst,
+	       const uint8_t *src);
+
+struct aes192_ctx
+{
+  uint32_t keys[4 * (_AES192_ROUNDS + 1)];
+};
+
+void
+aes192_set_encrypt_key(struct aes192_ctx *ctx, const uint8_t *key);
+void
+aes192_set_decrypt_key(struct aes192_ctx *ctx, const uint8_t *key);
+void
+aes192_invert_key(struct aes192_ctx *dst,
+		  const struct aes192_ctx *src);
+void
+aes192_encrypt(const struct aes192_ctx *ctx,
+	       size_t length, uint8_t *dst,
+	       const uint8_t *src);
+void
+aes192_decrypt(const struct aes192_ctx *ctx,
+	       size_t length, uint8_t *dst,
+	       const uint8_t *src);
+
+struct aes256_ctx
+{
+  uint32_t keys[4 * (_AES256_ROUNDS + 1)];
+};
+
+void
+aes256_set_encrypt_key(struct aes256_ctx *ctx, const uint8_t *key);
+void
+aes256_set_decrypt_key(struct aes256_ctx *ctx, const uint8_t *key);
+void
+aes256_invert_key(struct aes256_ctx *dst,
+		  const struct aes256_ctx *src);
+void
+aes256_encrypt(const struct aes256_ctx *ctx,
+	       size_t length, uint8_t *dst,
+	       const uint8_t *src);
+void
+aes256_decrypt(const struct aes256_ctx *ctx,
+	       size_t length, uint8_t *dst,
+	       const uint8_t *src);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NETTLE_AES_H_INCLUDED */