From 1bd0b66128ab1b2b2cd6476fd378a6e304a769be Mon Sep 17 00:00:00 2001 From: Egor Tensin Date: Wed, 3 Jun 2015 22:36:04 +0300 Subject: add OFB mode --- examples/CMakeLists.txt | 3 +++ examples/aes128ofb_example.c | 51 +++++++++++++++++++++++++++++++++++++++++++ examples/aes192ofb_example.c | 52 ++++++++++++++++++++++++++++++++++++++++++++ examples/aes256ofb_example.c | 52 ++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 158 insertions(+) create mode 100644 examples/aes128ofb_example.c create mode 100644 examples/aes192ofb_example.c create mode 100644 examples/aes256ofb_example.c (limited to 'examples') diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index 53e0361..080e382 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -8,9 +8,12 @@ endmacro() example(aes128ecb) example(aes128cbc) example(aes128cfb) +example(aes128ofb) example(aes192ecb) example(aes192cbc) example(aes192cfb) +example(aes192ofb) example(aes256ecb) example(aes256cbc) example(aes256cfb) +example(aes256ofb) diff --git a/examples/aes128ofb_example.c b/examples/aes128ofb_example.c new file mode 100644 index 0000000..07137f6 --- /dev/null +++ b/examples/aes128ofb_example.c @@ -0,0 +1,51 @@ +/** + * \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); + print_aes_block128_fips_matrix_style(&plain); + + printf("\n"); + printf("Key: %s\n", format_aes_block128(&key).str); + print_aes_block128_fips_matrix_style(&key); + + printf("\n"); + printf("Initialization vector: %s\n", format_aes_block128(&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); + + cypher = aes128ofb_encrypt(plain, &key_schedule, iv); + printf("\n"); + printf("Cypher: %s\n", format_aes_block128(&cypher).str); + print_aes_block128_fips_matrix_style(&cypher); + + decrypted = aes128ofb_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; +} diff --git a/examples/aes192ofb_example.c b/examples/aes192ofb_example.c new file mode 100644 index 0000000..6e611d0 --- /dev/null +++ b/examples/aes192ofb_example.c @@ -0,0 +1,52 @@ +/** + * \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, 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; +} diff --git a/examples/aes256ofb_example.c b/examples/aes256ofb_example.c new file mode 100644 index 0000000..3481c0c --- /dev/null +++ b/examples/aes256ofb_example.c @@ -0,0 +1,52 @@ +/** + * \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, cypher, decrypted, iv; + __declspec(align(16)) AesBlock256 key; + __declspec(align(16)) Aes256KeySchedule key_schedule; + + plain = make_aes_block128(0xffeeddcc, 0xbbaa9988, 0x77665544, 0x33221100); + key = make_aes_block256(0x1f1e1d1c, 0x1b1a1918, 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_block256(&key).str); + print_aes_block256_fips_matrix_style(&key); + + printf("\n"); + printf("Initialization vector: %s\n", format_aes_block128(&iv).str); + print_aes_block128_fips_matrix_style(&iv); + + aes256_expand_key_schedule(&key, &key_schedule); + + printf("\n"); + printf("Key schedule:\n"); + for (int i = 0; i < 15; ++i) + printf("\t[%d]: %s\n", i, format_aes_block128(&key_schedule.keys[i]).str); + + cypher = aes256ofb_encrypt(plain, &key_schedule, iv); + printf("\n"); + printf("Cypher: %s\n", format_aes_block128(&cypher).str); + print_aes_block128_fips_matrix_style(&cypher); + + decrypted = aes256ofb_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; +} -- cgit v1.2.3