From 1dd052e86fa45a215b68152977e0c7888eba9bf4 Mon Sep 17 00:00:00 2001 From: Egor Tensin Date: Wed, 3 Jun 2015 21:32:49 +0300 Subject: add CFB mode --- examples/aes128cfb_example.c | 59 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 examples/aes128cfb_example.c (limited to 'examples/aes128cfb_example.c') diff --git a/examples/aes128cfb_example.c b/examples/aes128cfb_example.c new file mode 100644 index 0000000..904c1bd --- /dev/null +++ b/examples/aes128cfb_example.c @@ -0,0 +1,59 @@ +/** + * \file + * \author Egor Tensin + * \date 2015 + * \copyright This file is licensed under the terms of the MIT License. + * See LICENSE.txt for details. + */ + +#include + +#include + +int main() +{ + __declspec(align(16)) AesBlock128 plain, key, cypher, decrypted, iv; + __declspec(align(16)) Aes128KeySchedule key_schedule; + + plain = make_aes_block128(0xffeeddcc, 0xbbaa9988, 0x77665544, 0x33221100); + key = make_aes_block128(0x0f0e0d0c, 0x0b0a0908, 0x07060504, 0x03020100); + iv = make_aes_block128(0xfedcba98, 0x76543210, 0xfedcba98, 0x76543210); + + printf("Plain: %s\n", format_aes_block128(&plain).str); + printf(" %s\n", format_aes_block128_fips_style(&plain).str); + print_aes_block128_fips_matrix_style(&plain); + + printf("\n"); + printf("Key: %s\n", format_aes_block128(&key).str); + printf(" %s\n", format_aes_block128_fips_style(&key).str); + print_aes_block128_fips_matrix_style(&key); + + printf("\n"); + printf("Initialization vector: %s\n", format_aes_block128(&iv).str); + printf(" %s\n", format_aes_block128_fips_style(&iv).str); + print_aes_block128_fips_matrix_style(&iv); + + aes128_expand_key_schedule(key, &key_schedule); + + printf("\n"); + printf("Key schedule:\n"); + for (int i = 0; i < 11; ++i) + { + printf("\t[%d]: %s\n", i, format_aes_block128(&key_schedule.keys[i]).str); + printf("\t[%d]: %s\n", i, format_aes_block128_fips_style(&key_schedule.keys[i]).str); + } + + cypher = aes128cfb_encrypt(plain, &key_schedule, iv); + printf("\n"); + printf("Cypher: %s\n", format_aes_block128(&cypher).str); + printf(" %s\n", format_aes_block128_fips_style(&cypher).str); + print_aes_block128_fips_matrix_style(&cypher); + + decrypted = aes128cfb_decrypt(cypher, &key_schedule, iv); + printf("\n"); + printf("Decrypted: %s\n", format_aes_block128(&decrypted).str); + printf(" %s\n", format_aes_block128_fips_style(&decrypted).str); + print_aes_block128_fips_matrix_style(&decrypted); + + return 0; +} -- cgit v1.2.3