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authorEgor Tensin <Egor.Tensin@gmail.com>2015-06-03 22:36:04 +0300
committerEgor Tensin <Egor.Tensin@gmail.com>2015-06-03 22:36:04 +0300
commit1bd0b66128ab1b2b2cd6476fd378a6e304a769be (patch)
tree59c00603bbc4580df27c603a9ce2dc6ab4882def /examples/aes192ofb_example.c
parentexamples: no more FIPS-style one-line blocks (diff)
downloadaes-tools-1bd0b66128ab1b2b2cd6476fd378a6e304a769be.tar.gz
aes-tools-1bd0b66128ab1b2b2cd6476fd378a6e304a769be.zip
add OFB mode
Diffstat (limited to 'examples/aes192ofb_example.c')
-rw-r--r--examples/aes192ofb_example.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/examples/aes192ofb_example.c b/examples/aes192ofb_example.c
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+++ b/examples/aes192ofb_example.c
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+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ * See LICENSE.txt for details.
+ */
+
+#include <aesni/all.h>
+
+#include <stdio.h>
+
+int main()
+{
+ __declspec(align(16)) AesBlock128 plain, cypher, decrypted, iv;
+ __declspec(align(16)) AesBlock192 key;
+ __declspec(align(16)) Aes192KeySchedule key_schedule;
+
+ plain = make_aes_block128(0xffeeddcc, 0xbbaa9988, 0x77665544, 0x33221100);
+ key = make_aes_block192(0x17161514, 0x13121110, 0x0f0e0d0c, 0x0b0a0908, 0x07060504, 0x03020100);
+ iv = make_aes_block128(0xfedcba98, 0x76543210, 0xfedcba98, 0x76543210);
+
+ printf("Plain: %s\n", format_aes_block128(&plain).str);
+ print_aes_block128_fips_matrix_style(&plain);
+
+ printf("\n");
+ printf("Key: %s\n", format_aes_block192(&key).str);
+ print_aes_block192_fips_matrix_style(&key);
+
+ printf("\n");
+ printf("Initialization vector: %s\n", format_aes_block128(&iv).str);
+ print_aes_block128_fips_matrix_style(&iv);
+
+ aes192_expand_key_schedule(&key, &key_schedule);
+
+ printf("\n");
+ printf("Key schedule:\n");
+ for (int i = 0; i < 13; ++i)
+ printf("\t[%d]: %s\n", i, format_aes_block128(&key_schedule.keys[i]).str);
+
+ cypher = aes192ofb_encrypt(plain, &key_schedule, iv);
+ printf("\n");
+ printf("Cypher: %s\n", format_aes_block128(&cypher).str);
+ print_aes_block128_fips_matrix_style(&cypher);
+
+ decrypted = aes192ofb_decrypt(cypher, &key_schedule, iv);
+ printf("\n");
+ printf("Decrypted: %s\n", format_aes_block128(&decrypted).str);
+ print_aes_block128_fips_matrix_style(&decrypted);
+
+ return 0;
+}