diff options
author | Egor Tensin <Egor.Tensin@gmail.com> | 2015-08-02 20:35:38 +0300 |
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committer | Egor Tensin <Egor.Tensin@gmail.com> | 2015-08-02 20:35:38 +0300 |
commit | 2f7feb1d9222e0afaac8ae17db98d1556aa46aa4 (patch) | |
tree | 84adde32dc3ff844f7c7e63477c2d0cc0529e7ac /cxx | |
parent | cxx: more mode helpers (diff) | |
download | aes-tools-2f7feb1d9222e0afaac8ae17db98d1556aa46aa4.tar.gz aes-tools-2f7feb1d9222e0afaac8ae17db98d1556aa46aa4.zip |
cxx: more algorithm-agnostic API
The code (in the utilities in particular) is a mess though, so a
refactoring's coming up.
Diffstat (limited to 'cxx')
-rw-r--r-- | cxx/include/aesnixx/aes.hpp | 823 | ||||
-rw-r--r-- | cxx/include/aesnixx/all.hpp | 1 | ||||
-rw-r--r-- | cxx/include/aesnixx/api.hpp | 171 | ||||
-rw-r--r-- | cxx/include/aesnixx/mode.hpp | 108 |
4 files changed, 536 insertions, 567 deletions
diff --git a/cxx/include/aesnixx/aes.hpp b/cxx/include/aesnixx/aes.hpp index 5d293ca..b2febf5 100644 --- a/cxx/include/aesnixx/aes.hpp +++ b/cxx/include/aesnixx/aes.hpp @@ -9,581 +9,270 @@ #pragma once #include "algorithm.hpp" -#include "data.hpp" +#include "api.hpp" +#include "error.hpp" #include "mode.hpp" #include <aesni/all.h> +#include <cstddef> + #include <string> namespace aesni { - namespace aes + namespace aes128 + { + typedef AesNI_AES128_Block Block; + typedef AesNI_AES128_RoundKeys RoundKeys; + typedef AesNI_AES128_Key Key; + } + + template <> + struct Types<AESNI_AES128> + { + typedef aes128::Block Block; + typedef aes128::RoundKeys RoundKeys; + typedef aes128::Key Key; + }; + + template <> + std::size_t get_number_of_rounds<AESNI_AES128>() + { + return 11; + } + + template <> + void from_string<AESNI_AES128>(aes128::Block& dest, const char* src) + { + aesni_AES128_parse_block(&dest, src, ErrorDetailsThrowsInDestructor()); + } + + template <> + std::string to_string<AESNI_AES128>(const aes128::Block& src) + { + AesNI_AES128_BlockString str; + aesni_AES128_format_block(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + std::string to_matrix_string<AESNI_AES128>(const aes128::Block& src) + { + AesNI_AES128_BlockMatrixString str; + aesni_AES128_format_block_as_matrix(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + void from_string<AESNI_AES128>(aes128::Key& dest, const char* src) + { + aesni_AES128_parse_key(&dest, src, ErrorDetailsThrowsInDestructor()); + } + + template <> + std::string to_string<AESNI_AES128>(const aes128::Key& src) + { + AesNI_AES128_KeyString str; + aesni_AES128_format_key(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + inline void expand_key<AESNI_AES128>( + const aes128::Key& key, + aes128::RoundKeys& encryption_keys) + { + aesni_AES128_expand_key(&key, &encryption_keys); + } + + template <> + inline void derive_decryption_keys<AESNI_AES128>( + const aes128::RoundKeys& encryption_keys, + aes128::RoundKeys& decryption_keys) + { + aesni_AES128_derive_decryption_keys( + &encryption_keys, &decryption_keys); + } + + AESNIXX_ENCRYPT_BLOCK_ECB(AES128); + AESNIXX_DECRYPT_BLOCK_ECB(AES128); + AESNIXX_ENCRYPT_BLOCK_CBC(AES128); + AESNIXX_DECRYPT_BLOCK_CBC(AES128); + AESNIXX_ENCRYPT_BLOCK_CFB(AES128); + AESNIXX_DECRYPT_BLOCK_CFB(AES128); + AESNIXX_ENCRYPT_BLOCK_OFB(AES128); + AESNIXX_DECRYPT_BLOCK_OFB(AES128); + AESNIXX_ENCRYPT_BLOCK_CTR(AES128); + AESNIXX_DECRYPT_BLOCK_CTR(AES128); + + namespace aes192 + { + typedef AesNI_AES192_Block Block; + typedef AesNI_AES192_RoundKeys RoundKeys; + typedef AesNI_AES192_Key Key; + } + + template <> + struct Types<AESNI_AES192> + { + typedef aes192::Block Block; + typedef aes192::RoundKeys RoundKeys; + typedef aes192::Key Key; + }; + + template <> + std::size_t get_number_of_rounds<AESNI_AES192>() + { + return 13; + } + + template <> + void from_string<AESNI_AES192>(aes192::Block& dest, const char* src) + { + aesni_AES192_parse_block(&dest, src, ErrorDetailsThrowsInDestructor()); + } + + template <> + std::string to_string<AESNI_AES192>(const aes192::Block& src) + { + AesNI_AES192_BlockString str; + aesni_AES192_format_block(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + std::string to_matrix_string<AESNI_AES192>(const aes192::Block& src) + { + AesNI_AES192_BlockMatrixString str; + aesni_AES192_format_block_as_matrix(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + void from_string<AESNI_AES192>(aes192::Key& dest, const char* src) + { + aesni_AES192_parse_key(&dest, src, ErrorDetailsThrowsInDestructor()); + } + + template <> + std::string to_string<AESNI_AES192>(const aes192::Key& src) + { + AesNI_AES192_KeyString str; + aesni_AES192_format_key(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + inline void expand_key<AESNI_AES192>( + const aes192::Key& key, + aes192::RoundKeys& encryption_keys) + { + aesni_AES192_expand_key(&key, &encryption_keys); + } + + template <> + inline void derive_decryption_keys<AESNI_AES192>( + const aes192::RoundKeys& encryption_keys, + aes192::RoundKeys& decryption_keys) + { + aesni_AES192_derive_decryption_keys( + &encryption_keys, &decryption_keys); + } + + AESNIXX_ENCRYPT_BLOCK_ECB(AES192); + AESNIXX_DECRYPT_BLOCK_ECB(AES192); + AESNIXX_ENCRYPT_BLOCK_CBC(AES192); + AESNIXX_DECRYPT_BLOCK_CBC(AES192); + AESNIXX_ENCRYPT_BLOCK_CFB(AES192); + AESNIXX_DECRYPT_BLOCK_CFB(AES192); + AESNIXX_ENCRYPT_BLOCK_OFB(AES192); + AESNIXX_DECRYPT_BLOCK_OFB(AES192); + AESNIXX_ENCRYPT_BLOCK_CTR(AES192); + AESNIXX_DECRYPT_BLOCK_CTR(AES192); + + namespace aes256 { - typedef AesNI_AES_Block Block; - - typedef AesNI_AES128_Key Key128; - typedef AesNI_AES192_Key Key192; - typedef AesNI_AES256_Key Key256; - - inline void make_block(Block& dest, int hi3, int hi2, int lo1, int lo0) - { - aesni_AES_make_block(&dest, hi3, hi2, lo1, lo0); - } - - inline void make_key(Key128& dest, int hi3, int hi2, int lo1, int lo0) - { - aesni_AES128_make_key(&dest, hi3, hi2, lo1, lo0); - } - - inline void make_key(Key192& dest, int hi5, int hi4, int hi3, int lo2, int lo1, int lo0) - { - aesni_AES192_make_key(&dest, hi5, hi4, hi3, lo2, lo1, lo0); - } - - inline void make_key(Key256& dest, int hi7, int hi6, int hi5, int hi4, int lo3, int lo2, int lo1, int lo0) - { - aesni_AES256_make_key(&dest, hi7, hi6, hi5, hi4, lo3, lo2, lo1, lo0); - } - - std::string to_string(const Block& block) - { - AesNI_AES_BlockString str; - aesni_AES_format_block(&str, &block, ErrorDetailsThrowsInDestructor()); - return std::string(str.str); - } - - std::string to_matrix_string(const Block& block) - { - AesNI_AES_BlockMatrixString str; - aesni_AES_format_block_as_matrix(&str, &block, ErrorDetailsThrowsInDestructor()); - return std::string(str.str); - } - - inline void from_string(Block& dest, const char* src) - { - aesni_AES_parse_block(&dest, src, ErrorDetailsThrowsInDestructor()); - } - - inline void from_string(Block& dest, const std::string& src) - { - from_string(dest, src.c_str()); - } - - std::string to_string(const Key128& block) - { - AesNI_AES128_KeyString str; - aesni_AES128_format_key(&str, &block, ErrorDetailsThrowsInDestructor()); - return std::string(str.str); - } - - std::string to_string(const Key192& block) - { - AesNI_AES192_KeyString str; - aesni_AES192_format_key(&str, &block, ErrorDetailsThrowsInDestructor()); - return std::string(str.str); - } - - std::string to_string(const Key256& block) - { - AesNI_AES256_KeyString str; - aesni_AES256_format_key(&str, &block, ErrorDetailsThrowsInDestructor()); - return std::string(str.str); - } - - inline void from_string(Key128& dest, const char* src) - { - aesni_AES128_parse_key(&dest, src, ErrorDetailsThrowsInDestructor()); - } - - inline void from_string(Key192& dest, const char* src) - { - aesni_AES192_parse_key(&dest, src, ErrorDetailsThrowsInDestructor()); - } - - inline void from_string(Key256& dest, const char* src) - { - aesni_AES256_parse_key(&dest, src, ErrorDetailsThrowsInDestructor()); - } - - inline void from_string(Key128& dest, const std::string& src) - { - return from_string(dest, src.c_str()); - } - - inline void from_string(Key192& dest, const std::string& src) - { - return from_string(dest, src.c_str()); - } - - inline void from_string(Key256& dest, const std::string& src) - { - return from_string(dest, src.c_str()); - } - - typedef AesNI_AES128_RoundKeys RoundKeys128; - typedef AesNI_AES192_RoundKeys RoundKeys192; - typedef AesNI_AES256_RoundKeys RoundKeys256; - - template <typename RoundKeysT> - inline std::size_t get_number_of_rounds(const RoundKeysT& round_keys) - { - return sizeof(round_keys) / sizeof(Block128); - } - - inline void expand_key( - const Key128& key, - RoundKeys128& encryption_keys) - { - aesni_AES128_expand_key(&key, &encryption_keys); - } - - inline void expand_key( - const Key192& key, - RoundKeys192& encryption_keys) - { - aesni_AES192_expand_key(&key, &encryption_keys); - } - - inline void expand_key( - const Key256& key, - RoundKeys256& encryption_keys) - { - aesni_AES256_expand_key(&key, &encryption_keys); - } - - inline void derive_decryption_keys( - const RoundKeys128& encryption_keys, - RoundKeys128& decryption_keys) - { - aesni_AES128_derive_decryption_keys( - &encryption_keys, &decryption_keys); - } - - inline void derive_decryption_keys( - const RoundKeys192& encryption_keys, - RoundKeys192& decryption_keys) - { - aesni_AES192_derive_decryption_keys( - &encryption_keys, &decryption_keys); - } - - inline void derive_decryption_keys( - const RoundKeys256& encryption_keys, - RoundKeys256& decryption_keys) - { - aesni_AES256_derive_decryption_keys( - &encryption_keys, &decryption_keys); - } - - inline Block encrypt_ecb( - const Block& plaintext, - const RoundKeys128& encryption_keys) - { - return aesni_AES128_encrypt_block_ECB(plaintext, &encryption_keys); - } - - inline Block decrypt_ecb( - const Block& ciphertext, - const RoundKeys128& decryption_keys) - { - return aesni_AES128_decrypt_block_ECB(ciphertext, &decryption_keys); - } - - inline Block encrypt_cbc( - const Block& plaintext, - const RoundKeys128& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_encrypt_block_CBC(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_cbc( - const Block& ciphertext, - const RoundKeys128& decryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_decrypt_block_CBC(ciphertext, &decryption_keys, iv, &next_iv); - } - - inline Block encrypt_cfb( - const Block& plaintext, - const RoundKeys128& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_encrypt_block_CFB(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_cfb( - const Block& ciphertext, - const RoundKeys128& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_decrypt_block_CFB(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ofb( - const Block& plaintext, - const RoundKeys128& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_encrypt_block_OFB(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_ofb( - const Block& ciphertext, - const RoundKeys128& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_decrypt_block_OFB(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ctr( - const Block& plaintext, - const RoundKeys128& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_encrypt_block_CTR(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_ctr( - const Block& ciphertext, - const RoundKeys128& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES128_decrypt_block_CTR(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ecb( - const Block& plaintext, - const RoundKeys192& encryption_keys) - { - return aesni_AES192_encrypt_block_ECB(plaintext, &encryption_keys); - } - - inline Block decrypt_ecb( - const Block& ciphertext, - const RoundKeys192& decryption_keys) - { - return aesni_AES192_decrypt_block_ECB(ciphertext, &decryption_keys); - } - - inline Block encrypt_cbc( - const Block& plaintext, - const RoundKeys192& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_encrypt_block_CBC(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_cbc( - const Block& ciphertext, - const RoundKeys192& decryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_decrypt_block_CBC(ciphertext, &decryption_keys, iv, &next_iv); - } - - inline Block encrypt_cfb( - const Block& plaintext, - const RoundKeys192& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_encrypt_block_CFB(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_cfb( - const Block& ciphertext, - const RoundKeys192& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_decrypt_block_CFB(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ofb( - const Block& plaintext, - const RoundKeys192& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_encrypt_block_OFB(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_ofb( - const Block& ciphertext, - const RoundKeys192& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_decrypt_block_OFB(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ctr( - const Block& plaintext, - const RoundKeys192& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_encrypt_block_CTR(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_ctr( - const Block& ciphertext, - const RoundKeys192& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES192_decrypt_block_CTR(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ecb( - const Block& plaintext, - const RoundKeys256& encryption_keys) - { - return aesni_AES256_encrypt_block_ECB(plaintext, &encryption_keys); - } - - inline Block decrypt_ecb( - const Block& ciphertext, - const RoundKeys256& decryption_keys) - { - return aesni_AES256_decrypt_block_ECB(ciphertext, &decryption_keys); - } - - inline Block encrypt_cbc( - const Block& plaintext, - const RoundKeys256& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_encrypt_block_CBC(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_cbc( - const Block& ciphertext, - const RoundKeys256& decryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_decrypt_block_CBC(ciphertext, &decryption_keys, iv, &next_iv); - } - - inline Block encrypt_cfb( - const Block& plaintext, - const RoundKeys256& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_encrypt_block_CFB(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_cfb( - const Block& ciphertext, - const RoundKeys256& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_decrypt_block_CFB(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ofb( - const Block& plaintext, - const RoundKeys256& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_encrypt_block_OFB(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_ofb( - const Block& ciphertext, - const RoundKeys256& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_decrypt_block_OFB(ciphertext, &encryption_keys, iv, &next_iv); - } - - inline Block encrypt_ctr( - const Block& plaintext, - const RoundKeys256& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_encrypt_block_CTR(plaintext, &encryption_keys, iv, &next_iv); - } - - inline Block decrypt_ctr( - const Block& ciphertext, - const RoundKeys256& encryption_keys, - const Block& iv, - Block& next_iv) - { - return aesni_AES256_decrypt_block_CTR(ciphertext, &encryption_keys, iv, &next_iv); - } - - template <Algorithm> - struct Types; - - template <> - struct Types<AESNI_AES128> - { - typedef aesni::aes::Block BlockT; - typedef aesni::aes::Key128 KeyT; - typedef aesni::aes::RoundKeys128 RoundKeysT; - }; - - template <> - struct Types<AESNI_AES192> - { - typedef aesni::aes::Block BlockT; - typedef aesni::aes::Key192 KeyT; - typedef aesni::aes::RoundKeys192 RoundKeysT; - }; - - template <> - struct Types<AESNI_AES256> - { - typedef aesni::aes::Block BlockT; - typedef aesni::aes::Key256 KeyT; - typedef aesni::aes::RoundKeys256 RoundKeysT; - }; - - template <Algorithm algorithm, Mode mode> - struct Encrypt; - - template <Algorithm algorithm> - struct Encrypt<algorithm, AESNI_ECB> - { - Encrypt(const typename Types<algorithm>::KeyT& key, - const typename Types<algorithm>::BlockT& iv) - { - expand_key(key, encryption_keys); - derive_decryption_keys(encryption_keys, decryption_keys); - } - - inline typename Types<algorithm>::BlockT encrypt(const typename Types<algorithm>::BlockT& plaintext) - { - return encrypt_ecb(plaintext, encryption_keys); - } - - inline typename Types<algorithm>::BlockT decrypt(const typename Types<algorithm>::BlockT& ciphertext) - { - return decrypt_ecb(ciphertext, decryption_keys); - } - - typename Types<algorithm>::RoundKeysT encryption_keys; - typename Types<algorithm>::RoundKeysT decryption_keys; - }; - - template <Algorithm algorithm> - struct Encrypt<algorithm, AESNI_CBC> - { - Encrypt(const typename Types<algorithm>::KeyT& key, - const typename Types<algorithm>::BlockT& iv) - : iv(iv) - { - expand_key(key, encryption_keys); - derive_decryption_keys(encryption_keys, decryption_keys); - } - - inline typename Types<algorithm>::BlockT encrypt(const typename Types<algorithm>::BlockT& plaintext) - { - return encrypt_cbc(plaintext, encryption_keys, iv, iv); - } - - inline typename Types<algorithm>::BlockT decrypt(const typename Types<algorithm>::BlockT& ciphertext) - { - return decrypt_cbc(ciphertext, decryption_keys, iv, iv); - } - - typename Types<algorithm>::BlockT iv; - typename Types<algorithm>::RoundKeysT encryption_keys; - typename Types<algorithm>::RoundKeysT decryption_keys; - }; - - template <Algorithm algorithm> - struct Encrypt<algorithm, AESNI_CFB> - { - Encrypt(const typename Types<algorithm>::KeyT& key, - const typename Types<algorithm>::BlockT& iv) - : iv(iv) - { - expand_key(key, encryption_keys); - } - - inline typename Types<algorithm>::BlockT encrypt(const typename Types<algorithm>::BlockT& plaintext) - { - return encrypt_cfb(plaintext, encryption_keys, iv, iv); - } - - inline typename Types<algorithm>::BlockT decrypt(const typename Types<algorithm>::BlockT& ciphertext) - { - return decrypt_cfb(ciphertext, encryption_keys, iv, iv); - } - - typename Types<algorithm>::BlockT iv; - typename Types<algorithm>::RoundKeysT encryption_keys; - }; - - template <Algorithm algorithm> - struct Encrypt<algorithm, AESNI_OFB> - { - Encrypt(const typename Types<algorithm>::KeyT& key, - const typename Types<algorithm>::BlockT& iv) - : iv(iv) - { - expand_key(key, encryption_keys); - } - - inline typename Types<algorithm>::BlockT encrypt(const typename Types<algorithm>::BlockT& plaintext) - { - return encrypt_ofb(plaintext, encryption_keys, iv, iv); - } - - inline typename Types<algorithm>::BlockT decrypt(const typename Types<algorithm>::BlockT& ciphertext) - { - return decrypt_ofb(ciphertext, encryption_keys, iv, iv); - } - - typename Types<algorithm>::BlockT iv; - typename Types<algorithm>::RoundKeysT encryption_keys; - }; - - template <Algorithm algorithm> - struct Encrypt<algorithm, AESNI_CTR> - { - Encrypt(const typename Types<algorithm>::KeyT& key, - const typename Types<algorithm>::BlockT& iv) - : iv(iv) - { - expand_key(key, encryption_keys); - } - - inline typename Types<algorithm>::BlockT encrypt(const typename Types<algorithm>::BlockT& plaintext) - { - return encrypt_ctr(plaintext, encryption_keys, iv, iv); - } - - inline typename Types<algorithm>::BlockT decrypt(const typename Types<algorithm>::BlockT& ciphertext) - { - return decrypt_ctr(ciphertext, encryption_keys, iv, iv); - } - - typename Types<algorithm>::RoundKeysT encryption_keys; - typename Types<algorithm>::BlockT iv; - }; + typedef AesNI_AES256_Block Block; + typedef AesNI_AES256_RoundKeys RoundKeys; + typedef AesNI_AES256_Key Key; } + + template <> + struct Types<AESNI_AES256> + { + typedef aes256::Block Block; + typedef aes256::RoundKeys RoundKeys; + typedef aes256::Key Key; + }; + + template <> + std::size_t get_number_of_rounds<AESNI_AES256>() + { + return 15; + } + + template <> + void from_string<AESNI_AES256>(aes256::Block& dest, const char* src) + { + aesni_AES256_parse_block(&dest, src, ErrorDetailsThrowsInDestructor()); + } + + template <> + std::string to_string<AESNI_AES256>(const aes256::Block& src) + { + AesNI_AES256_BlockString str; + aesni_AES256_format_block(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + std::string to_matrix_string<AESNI_AES256>(const aes256::Block& src) + { + AesNI_AES256_BlockMatrixString str; + aesni_AES256_format_block_as_matrix(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + void from_string<AESNI_AES256>(aes256::Key& dest, const char* src) + { + aesni_AES256_parse_key(&dest, src, ErrorDetailsThrowsInDestructor()); + } + + template <> + std::string to_string<AESNI_AES256>(const aes256::Key& src) + { + AesNI_AES256_KeyString str; + aesni_AES256_format_key(&str, &src, ErrorDetailsThrowsInDestructor()); + return { str.str }; + } + + template <> + inline void expand_key<AESNI_AES256>( + const aes256::Key& key, + aes256::RoundKeys& encryption_keys) + { + aesni_AES256_expand_key(&key, &encryption_keys); + } + + template <> + inline void derive_decryption_keys<AESNI_AES256>( + const aes256::RoundKeys& encryption_keys, + aes256::RoundKeys& decryption_keys) + { + aesni_AES256_derive_decryption_keys( + &encryption_keys, &decryption_keys); + } + + AESNIXX_ENCRYPT_BLOCK_ECB(AES256); + AESNIXX_DECRYPT_BLOCK_ECB(AES256); + AESNIXX_ENCRYPT_BLOCK_CBC(AES256); + AESNIXX_DECRYPT_BLOCK_CBC(AES256); + AESNIXX_ENCRYPT_BLOCK_CFB(AES256); + AESNIXX_DECRYPT_BLOCK_CFB(AES256); + AESNIXX_ENCRYPT_BLOCK_OFB(AES256); + AESNIXX_DECRYPT_BLOCK_OFB(AES256); + AESNIXX_ENCRYPT_BLOCK_CTR(AES256); + AESNIXX_DECRYPT_BLOCK_CTR(AES256); } diff --git a/cxx/include/aesnixx/all.hpp b/cxx/include/aesnixx/all.hpp index 2bdf301..417d9ea 100644 --- a/cxx/include/aesnixx/all.hpp +++ b/cxx/include/aesnixx/all.hpp @@ -10,6 +10,7 @@ #include "aes.hpp" #include "algorithm.hpp" +#include "api.hpp" #include "data.hpp" #include "debug.hpp" #include "error.hpp" diff --git a/cxx/include/aesnixx/api.hpp b/cxx/include/aesnixx/api.hpp new file mode 100644 index 0000000..6995ae2 --- /dev/null +++ b/cxx/include/aesnixx/api.hpp @@ -0,0 +1,171 @@ +/** + * \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. + */ + +#pragma once + +#include "algorithm.hpp" +#include "mode.hpp" + +#include <cstddef> + +#include <string> +#include <type_traits> + +namespace aesni +{ + template <Algorithm algorithm> + struct Types; + + template <Algorithm algorithm> + std::size_t get_number_of_rounds(); + + template <Algorithm algorithm> + void from_string( + typename Types<algorithm>::Block&, + const char*); + + template <Algorithm algorithm> + inline void from_string( + typename Types<algorithm>::Block& dest, + const std::string& src) + { + from_string<algorithm>(dest, src.c_str()); + } + + template <Algorithm algorithm> + std::string to_string(const typename Types<algorithm>::Block&); + + template <Algorithm algorithm> + std::string to_matrix_string(const typename Types<algorithm>::Block&); + + template <Algorithm algorithm> + void from_string( + typename Types<algorithm>::Key&, + const char*); + + template <Algorithm algorithm> + inline void from_string( + typename Types<algorithm>::Key& dest, + const std::string& src) + { + from_string<algorithm>(dest, src.c_str()); + } + + template <Algorithm algorithm> + std::string to_string(const typename Types<algorithm>::Key&); + + template <Algorithm algorithm> + inline void expand_key( + const typename Types<algorithm>::Key& key, + typename Types<algorithm>::RoundKeys& encryption_keys); + + template <Algorithm algorithm> + inline void derive_decryption_keys( + const typename Types<algorithm>::RoundKeys& encryption_keys, + typename Types<algorithm>::RoundKeys& decryption_keys); + + template <Algorithm algorithm, Mode mode, typename std::enable_if<ModeRequiresInitializationVector<mode>::value>::type* = 0> + inline void encrypt_block( + const typename Types<algorithm>::Block& plaintext, + const typename Types<algorithm>::RoundKeys& round_keys, + typename Types<algorithm>::Block& iv, + typename Types<algorithm>::Block& ciphertext); + + template <Algorithm algorithm, Mode mode, typename std::enable_if<!ModeRequiresInitializationVector<mode>::value>::type* = 0> + inline void encrypt_block( + const typename Types<algorithm>::Block& plaintext, + const typename Types<algorithm>::RoundKeys& round_keys, + typename Types<algorithm>::Block& ciphertext); + + template <Algorithm algorithm, Mode mode, typename std::enable_if<!ModeRequiresInitializationVector<mode>::value>::type* = 0> + inline void encrypt_block( + const typename Types<algorithm>::Block& plaintext, + const typename Types<algorithm>::RoundKeys& round_keys, + typename Types<algorithm>::Block&, + typename Types<algorithm>::Block& ciphertext) + { + encrypt_block<algorithm, mode>(plaintext, round_keys, ciphertext); + } + + template <Algorithm algorithm, Mode mode, typename std::enable_if<ModeRequiresInitializationVector<mode>::value>::type* = 0> + inline void decrypt_block( + const typename Types<algorithm>::Block& ciphertext, + const typename Types<algorithm>::RoundKeys& round_keys, + typename Types<algorithm>::Block& iv, + typename Types<algorithm>::Block& plaintext); + + template <Algorithm algorithm, Mode mode, typename std::enable_if<!ModeRequiresInitializationVector<mode>::value>::type* = 0> + inline void decrypt_block( + const typename Types<algorithm>::Block& ciphertext, + const typename Types<algorithm>::RoundKeys& round_keys, + typename Types<algorithm>::Block& plaintext); + + template <Algorithm algorithm, Mode mode, typename std::enable_if<!ModeRequiresInitializationVector<mode>::value>::type* = 0> + inline void decrypt_block( + const typename Types<algorithm>::Block& ciphertext, + const typename Types<algorithm>::RoundKeys& round_keys, + typename Types<algorithm>::Block&, + typename Types<algorithm>::Block& plaintext) + { + decrypt_block<algorithm, mode>(ciphertext, round_keys, plaintext); + } + + template <Algorithm algorithm, Mode mode> + struct EncryptWrapper + { + EncryptWrapper( + const typename Types<algorithm>::Key& key, + const typename Types<algorithm>::Block& iv) : iv(iv) + { + expand_key<algorithm>(key, encryption_keys); + } + + inline void encrypt_block( + const typename Types<algorithm>::Block& plaintext, + typename Types<algorithm>::Block& ciphertext) + { + aesni::encrypt_block<algorithm, mode>( + plaintext, encryption_keys, iv, ciphertext); + } + + typename Types<algorithm>::Block iv; + typename Types<algorithm>::RoundKeys encryption_keys; + }; + + template <Algorithm algorithm, Mode mode> + struct DecryptWrapper + { + DecryptWrapper( + const typename Types<algorithm>::Key& key, + const typename Types<algorithm>::Block& iv) : iv(iv) + { + typename Types<algorithm>::RoundKeys encryption_keys; + expand_key<algorithm>(key, encryption_keys); + + if (ModeUsesEncryptionKeysOnly<mode>::value) + { + decryption_keys = encryption_keys; + } + else + { + derive_decryption_keys<algorithm>(encryption_keys, decryption_keys); + } + } + + inline void decrypt_block( + const typename Types<algorithm>::Block& ciphertext, + typename Types<algorithm>::Block& plaintext) + { + aesni::decrypt_block<algorithm, mode>( + ciphertext, decryption_keys, iv, plaintext); + } + + typename Types<algorithm>::Block iv; + typename Types<algorithm>::RoundKeys decryption_keys; + }; +} diff --git a/cxx/include/aesnixx/mode.hpp b/cxx/include/aesnixx/mode.hpp index a0af051..e19dbbd 100644 --- a/cxx/include/aesnixx/mode.hpp +++ b/cxx/include/aesnixx/mode.hpp @@ -45,4 +45,112 @@ namespace aesni { return mode != AESNI_ECB && mode != AESNI_CBC; } + +#define AESNIXX_ENCRYPT_BLOCK_ECB(prefix) \ + template <> \ + inline void encrypt_block<AESNI_## prefix, AESNI_ECB>( \ + const typename Types<AESNI_## prefix>::Block& plaintext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& ciphertext) \ + { \ + ciphertext = aesni_## prefix ##_encrypt_block_ECB(plaintext, &encryption_keys); \ + } + +#define AESNIXX_DECRYPT_BLOCK_ECB(prefix) \ + template <> \ + inline void decrypt_block<AESNI_## prefix, AESNI_ECB>( \ + const typename Types<AESNI_## prefix>::Block& ciphertext, \ + const typename Types<AESNI_## prefix>::RoundKeys& decryption_keys, \ + typename Types<AESNI_## prefix>::Block& plaintext) \ + { \ + plaintext = aesni_## prefix ##_decrypt_block_ECB(ciphertext, &decryption_keys); \ + } + +#define AESNIXX_ENCRYPT_BLOCK_CBC(prefix) \ + template <> \ + inline void encrypt_block<AESNI_## prefix, AESNI_CBC>( \ + const typename Types<AESNI_## prefix>::Block& plaintext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& ciphertext) \ + { \ + ciphertext = aesni_## prefix ##_encrypt_block_CBC(plaintext, &encryption_keys, iv, &iv); \ + } + +#define AESNIXX_DECRYPT_BLOCK_CBC(prefix) \ + template <> \ + inline void decrypt_block<AESNI_## prefix, AESNI_CBC>( \ + const typename Types<AESNI_## prefix>::Block& ciphertext, \ + const typename Types<AESNI_## prefix>::RoundKeys& decryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& plaintext) \ + { \ + plaintext = aesni_## prefix ##_decrypt_block_CBC(ciphertext, &decryption_keys, iv, &iv); \ + } + +#define AESNIXX_ENCRYPT_BLOCK_CFB(prefix) \ + template <> \ + inline void encrypt_block<AESNI_## prefix, AESNI_CFB>( \ + const typename Types<AESNI_## prefix>::Block& plaintext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& ciphertext) \ + { \ + ciphertext = aesni_## prefix ##_encrypt_block_CFB(plaintext, &encryption_keys, iv, &iv); \ + } + +#define AESNIXX_DECRYPT_BLOCK_CFB(prefix) \ + template <> \ + inline void decrypt_block<AESNI_## prefix, AESNI_CFB>( \ + const typename Types<AESNI_## prefix>::Block& ciphertext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& plaintext) \ + { \ + plaintext = aesni_## prefix ##_decrypt_block_CFB(ciphertext, &encryption_keys, iv, &iv); \ + } + +#define AESNIXX_ENCRYPT_BLOCK_OFB(prefix) \ + template <> \ + inline void encrypt_block<AESNI_## prefix, AESNI_OFB>( \ + const typename Types<AESNI_## prefix>::Block& plaintext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& ciphertext) \ + { \ + ciphertext = aesni_## prefix ##_encrypt_block_OFB(plaintext, &encryption_keys, iv, &iv); \ + } + +#define AESNIXX_DECRYPT_BLOCK_OFB(prefix) \ + template <> \ + inline void decrypt_block<AESNI_## prefix, AESNI_OFB>( \ + const typename Types<AESNI_## prefix>::Block& ciphertext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& plaintext) \ + { \ + plaintext = aesni_## prefix ##_decrypt_block_OFB(ciphertext, &encryption_keys, iv, &iv); \ + } + +#define AESNIXX_ENCRYPT_BLOCK_CTR(prefix) \ + template <> \ + inline void encrypt_block<AESNI_## prefix, AESNI_CTR>( \ + const typename Types<AESNI_## prefix>::Block& plaintext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& ciphertext) \ + { \ + ciphertext = aesni_## prefix ##_encrypt_block_CTR(plaintext, &encryption_keys, iv, &iv); \ + } + +#define AESNIXX_DECRYPT_BLOCK_CTR(prefix) \ + template <> \ + inline void decrypt_block<AESNI_## prefix, AESNI_CTR>( \ + const typename Types<AESNI_## prefix>::Block& ciphertext, \ + const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \ + typename Types<AESNI_## prefix>::Block& iv, \ + typename Types<AESNI_## prefix>::Block& plaintext) \ + { \ + plaintext = aesni_## prefix ##_decrypt_block_CTR(ciphertext, &encryption_keys, iv, &iv); \ + } } |