From c29cfccf900dd973ff73e05190586330a133c303 Mon Sep 17 00:00:00 2001 From: Egor Tensin Date: Fri, 19 Jun 2015 18:04:57 +0300 Subject: test: restore specialized block encryption utils --- test/aes256ctr_decrypt_block.c | 62 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 test/aes256ctr_decrypt_block.c (limited to 'test/aes256ctr_decrypt_block.c') diff --git a/test/aes256ctr_decrypt_block.c b/test/aes256ctr_decrypt_block.c new file mode 100644 index 0000000..2a1fc8f --- /dev/null +++ b/test/aes256ctr_decrypt_block.c @@ -0,0 +1,62 @@ +/** + * \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 +#include +#include + +static void exit_with_usage() +{ + puts("Usage: aes256ctr_decrypt_block.exe KEY0 IV0 [CIPHERTEXT0...] [-- KEY1 IV1 [CIPHERTEXT1...]...]"); + exit(EXIT_FAILURE); +} + +int main(int argc, char** argv) +{ + for (--argc, ++argv; argc > -1; --argc, ++argv) + { + AesNI_Block128 plaintext, ciphertext, iv; + AesNI_Aes256_Key key; + AesNI_Aes256_RoundKeys encryption_keys; + + if (argc < 2) + exit_with_usage(); + + if (aesni_is_error(aesni_aes256_parse_key(&key, *argv, NULL))) + { + fprintf(stderr, "Invalid 256-bit AES block '%s'\n", *argv); + exit_with_usage(); + } + + if (aesni_is_error(aesni_aes_parse_block(&iv, argv[1], NULL))) + { + fprintf(stderr, "Invalid 128-bit AES block '%s'\n", argv[1]); + exit_with_usage(); + } + + aesni_aes256_expand_key(&key, &encryption_keys); + + for (argc -= 2, argv += 2; argc > 0; --argc, ++argv) + { + if (strcmp("--", *argv) == 0) + break; + + if (aesni_is_error(aesni_aes_parse_block(&ciphertext, *argv, NULL))) + { + fprintf(stderr, "Invalid 128-bit AES block '%s'\n", *argv); + continue; + } + plaintext = aesni_aes256_decrypt_block_ctr(ciphertext, &encryption_keys, iv, &iv); + aesni_aes_print_block(&plaintext, NULL); + } + } + + return 0; +} -- cgit v1.2.3