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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 <assert.h>
#include <stdio.h>
#include <string.h>
AesNI_StatusCode aesni_aes_format_block(
AesNI_Aes_BlockString* str,
const AesNI_Aes_Block* block,
AesNI_ErrorDetails* err_details)
{
assert(str);
assert(block);
if (str == NULL)
return aesni_make_null_argument_error(err_details, "str");
if (block == NULL)
return aesni_make_null_argument_error(err_details, "block");
char* cursor = str->str;
__declspec(align(16)) unsigned char bytes[16];
aesni_store_block128_aligned(bytes, *block);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
*cursor = '\0';
return AESNI_SUCCESS;
}
AesNI_StatusCode aesni_aes_format_block_as_matrix(
AesNI_Aes_BlockMatrixString* str,
const AesNI_Aes_Block* block,
AesNI_ErrorDetails* err_details)
{
assert(str);
assert(block);
if (str == NULL)
return aesni_make_null_argument_error(err_details, "str");
if (block == NULL)
return aesni_make_null_argument_error(err_details, "block");
char* cursor = str->str;
__declspec(align(16)) unsigned char bytes[4][4];
aesni_store_block128_aligned(bytes, *block);
for (int i = 0; i < 4; ++i, cursor += 3)
{
for (int j = 0; j < 3; ++j, cursor += 3)
sprintf(cursor, "%02x ", bytes[j][i]);
sprintf(cursor, "%02x\n", bytes[3][i]);
}
*cursor = '\0';
return AESNI_SUCCESS;
}
AesNI_StatusCode aesni_aes_print_block(
const AesNI_Aes_Block* block,
AesNI_ErrorDetails* err_details)
{
assert(block);
if (block == NULL)
return aesni_make_null_argument_error(err_details, "block");
AesNI_StatusCode ec = AESNI_SUCCESS;
AesNI_Aes_BlockString str;
if (aesni_is_error(ec = aesni_aes_format_block(&str, block, err_details)))
return ec;
printf("%s\n", str.str);
return ec;
}
AesNI_StatusCode aesni_aes_print_block_as_matrix(
const AesNI_Aes_Block* block,
AesNI_ErrorDetails* err_details)
{
assert(block);
if (block == NULL)
return aesni_make_null_argument_error(err_details, "block");
AesNI_StatusCode ec = AESNI_SUCCESS;
AesNI_Aes_BlockMatrixString str;
if (aesni_is_error(ec = aesni_aes_format_block_as_matrix(&str, block, err_details)))
return ec;
printf("%s", str.str);
return ec;
}
AesNI_StatusCode aesni_aes_parse_block(
AesNI_Aes_Block* dest,
const char* src,
AesNI_ErrorDetails* err_details)
{
assert(dest);
assert(src);
if (dest == NULL)
return aesni_make_null_argument_error(err_details, "dest");
if (src == NULL)
return aesni_make_null_argument_error(err_details, "src");
__declspec(align(16)) unsigned char bytes[16];
for (int i = 0; i < 16; ++i)
{
int n;
unsigned int byte;
if (sscanf(src, "%2x%n", &byte, &n) != 1)
return aesni_make_parse_error(err_details, src);
bytes[i] = (unsigned char) byte;
src += n;
}
*dest = aesni_load_block128_aligned(bytes);
return AESNI_SUCCESS;
}
AesNI_StatusCode aesni_aes128_format_key(
AesNI_Aes128_KeyString* str,
const AesNI_Aes128_Key* key,
AesNI_ErrorDetails* err_details)
{
return aesni_aes_format_block(str, &key->key, err_details);
}
AesNI_StatusCode aesni_aes192_format_key(
AesNI_Aes192_KeyString* str,
const AesNI_Aes192_Key* key,
AesNI_ErrorDetails* err_details)
{
assert(str);
assert(key);
if (str == NULL)
return aesni_make_null_argument_error(err_details, "str");
if (key == NULL)
return aesni_make_null_argument_error(err_details, "key");
char* cursor = str->str;
{
__declspec(align(16)) unsigned char bytes[16];
aesni_store_block128_aligned(bytes, key->lo);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
{
__declspec(align(16)) unsigned char bytes[16];
aesni_store_block128_aligned(bytes, key->hi);
for (int i = 0; i < 8; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
*cursor = '\0';
return AESNI_SUCCESS;
}
AesNI_StatusCode aesni_aes256_format_key(
AesNI_Aes256_KeyString* str,
const AesNI_Aes256_Key* key,
AesNI_ErrorDetails* err_details)
{
assert(str);
assert(key);
if (str == NULL)
return aesni_make_null_argument_error(err_details, "str");
if (key == NULL)
return aesni_make_null_argument_error(err_details, "key");
char* cursor = str->str;
{
__declspec(align(16)) unsigned char bytes[16];
aesni_store_block128_aligned(bytes, key->lo);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
{
__declspec(align(16)) unsigned char bytes[16];
aesni_store_block128_aligned(bytes, key->hi);
for (int i = 0; i < 16; ++i, cursor += 2)
sprintf(cursor, "%02x", bytes[i]);
}
*cursor = '\0';
return AESNI_SUCCESS;
}
AesNI_StatusCode aesni_aes128_print_key(
const AesNI_Aes128_Key* key,
AesNI_ErrorDetails* err_details)
{
return aesni_aes_print_block(&key->key, err_details);
}
AesNI_StatusCode aesni_aes192_print_key(
const AesNI_Aes192_Key* key,
AesNI_ErrorDetails* err_details)
{
assert(key);
if (key == NULL)
return aesni_make_null_argument_error(err_details, "key");
AesNI_StatusCode ec = AESNI_SUCCESS;
AesNI_Aes192_KeyString str;
if (aesni_is_error(ec = aesni_aes192_format_key(&str, key, err_details)))
return ec;
printf("%s\n", str.str);
return ec;
}
AesNI_StatusCode aesni_aes256_print_key(
const AesNI_Aes256_Key* key,
AesNI_ErrorDetails* err_details)
{
assert(key);
if (key == NULL)
return aesni_make_null_argument_error(err_details, "key");
AesNI_StatusCode ec = AESNI_SUCCESS;
AesNI_Aes256_KeyString str;
if (aesni_is_error(ec = aesni_aes256_format_key(&str, key, err_details)))
return ec;
printf("%s\n", str.str);
return ec;
}
AesNI_StatusCode aesni_aes128_parse_key(
AesNI_Aes128_Key* dest,
const char* src,
AesNI_ErrorDetails* err_details)
{
return aesni_aes_parse_block(&dest->key, src, err_details);
}
AesNI_StatusCode aesni_aes192_parse_key(
AesNI_Aes192_Key* dest,
const char* src,
AesNI_ErrorDetails* err_details)
{
assert(dest);
assert(src);
if (dest == NULL)
return aesni_make_null_argument_error(err_details, "dest");
if (src == NULL)
return aesni_make_null_argument_error(err_details, "src");
{
__declspec(align(16)) unsigned char bytes[16];
for (int i = 0; i < 16; ++i)
{
int n;
unsigned int byte;
if (sscanf(src, "%2x%n", &byte, &n) != 1)
return aesni_make_parse_error(err_details, src);
bytes[i] = (unsigned char) byte;
src += n;
}
dest->lo = aesni_load_block128_aligned(bytes);
}
{
__declspec(align(16)) unsigned char bytes[16];
for (int i = 0; i < 8; ++i)
{
int n;
unsigned int byte;
if (sscanf(src, "%2x%n", &byte, &n) != 1)
return aesni_make_parse_error(err_details, src);
bytes[i] = (unsigned char) byte;
src += n;
}
memset(bytes + 8, 0x00, 8);
dest->hi = aesni_load_block128_aligned(bytes);
}
return AESNI_SUCCESS;
}
AesNI_StatusCode aesni_aes256_parse_key(
AesNI_Aes256_Key* dest,
const char* src,
AesNI_ErrorDetails* err_details)
{
assert(dest);
assert(src);
if (dest == NULL)
return aesni_make_null_argument_error(err_details, "dest");
if (src == NULL)
return aesni_make_null_argument_error(err_details, "src");
{
__declspec(align(16)) unsigned char bytes[16];
for (int i = 0; i < 16; ++i)
{
int n;
unsigned int byte;
if (sscanf(src, "%2x%n", &byte, &n) != 1)
return aesni_make_parse_error(err_details, src);
bytes[i] = (unsigned char) byte;
src += n;
}
dest->lo = aesni_load_block128_aligned(bytes);
}
{
__declspec(align(16)) unsigned char bytes[16];
for (int i = 0; i < 16; ++i)
{
int n;
unsigned int byte;
if (sscanf(src, "%2x%n", &byte, &n) != 1)
return aesni_make_parse_error(err_details, src);
bytes[i] = (unsigned char) byte;
src += n;
}
dest->hi = aesni_load_block128_aligned(bytes);
}
return AESNI_SUCCESS;
}
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