summaryrefslogtreecommitdiff
path: root/aes.h
diff options
context:
space:
mode:
authorNiels Möller <nisse@lysator.liu.se>2001-04-13 00:03:15 +0200
committerNiels Möller <nisse@lysator.liu.se>2001-04-13 00:03:15 +0200
commit8ae5b57640cd5f0381dadfe2299dea54e2ded93e (patch)
tree6fc53c08c0b81339e903cf1ea35c74e36e2a5417 /aes.h
parenta4f63af3021954e8cda13078ae2de6a20ff0830b (diff)
downloadnettle-8ae5b57640cd5f0381dadfe2299dea54e2ded93e.tar.gz
* Initial checkin.
Rev: src/nettle/.bootstrap:1.1 Rev: src/nettle/.c-style:1.1 Rev: src/nettle/AUTHORS:1.1 Rev: src/nettle/ChangeLog:1.1 Rev: src/nettle/Makefile.am:1.1 Rev: src/nettle/NEWS:1.1 Rev: src/nettle/README:1.1 Rev: src/nettle/aes.c:1.1 Rev: src/nettle/aes.h:1.1 Rev: src/nettle/arcfour.c:1.1 Rev: src/nettle/arcfour.h:1.1 Rev: src/nettle/configure.in:1.1 Rev: src/nettle/macros.h:1.1 Rev: src/nettle/md5.c:1.1 Rev: src/nettle/md5.h:1.1 Rev: src/nettle/memxor.c:1.1 Rev: src/nettle/memxor.h:1.1 Rev: src/nettle/testsuite/.c-style:1.1 Rev: src/nettle/testsuite/Makefile.am:1.1 Rev: src/nettle/testsuite/aes-test.m4:1.1 Rev: src/nettle/testsuite/arcfour-test.m4:1.1 Rev: src/nettle/testsuite/macros.m4:1.1 Rev: src/nettle/testsuite/md5-test.m4:1.1 Rev: src/nettle/testsuite/run-tests:1.1 Rev: src/nettle/testsuite/testutils.c:1.1 Rev: src/nettle/testsuite/testutils.h:1.1
Diffstat (limited to 'aes.h')
-rw-r--r--aes.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/aes.h b/aes.h
new file mode 100644
index 00000000..d730dd0e
--- /dev/null
+++ b/aes.h
@@ -0,0 +1,60 @@
+/* aes.h
+ *
+ * The aes/rijndael block cipher.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001 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 GNU MP 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 GNU MP 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.
+ */
+
+#ifndef NETTLE_AES_H_INCLUDED
+#define NETTLE_AES_H_INCLUDED
+
+#include <stdint.h>
+
+#define AES_BLOCK_SIZE 16
+
+/* 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 16
+#define AES_MAX_KEY_SIZE 32
+
+#define AES_KEY_SIZE 32
+
+struct aes_ctx
+{
+ uint32_t keys[60]; /* maximum size of key schedule */
+ uint32_t ikeys[60]; /* inverse key schedule */
+ unsigned nrounds; /* number of rounds to use for our key size */
+};
+
+void
+aes_set_key(struct aes_ctx *ctx,
+ unsigned length, const uint8_t *key);
+
+void
+aes_encrypt(struct aes_ctx *ctx,
+ unsigned length, uint8_t *dst,
+ const uint8_t *src);
+void
+aes_decrypt(struct aes_ctx *ctx,
+ unsigned length, uint8_t *dst,
+ const uint8_t *src);
+
+#endif /* NETTLE_AES_H_INCLUDED */