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/*
* AES
* (C) 1999-2010 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_AES_H_
#define BOTAN_AES_H_
#include <botan/block_cipher.h>
namespace Botan {
/**
* AES-128
*/
class AES_128 final : public Block_Cipher_Fixed_Params<16, 16>
{
public:
void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void clear() override;
std::string provider() const override;
std::string name() const override { return "AES-128"; }
std::unique_ptr<BlockCipher> new_object() const override { return std::make_unique<AES_128>(); }
size_t parallelism() const override;
private:
void key_schedule(const uint8_t key[], size_t length) override;
#if defined(BOTAN_HAS_AES_VPERM)
void vperm_encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void vperm_decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void vperm_key_schedule(const uint8_t key[], size_t length);
#endif
#if defined(BOTAN_HAS_AES_NI)
void aesni_key_schedule(const uint8_t key[], size_t length);
#endif
#if defined(BOTAN_HAS_AES_POWER8) || defined(BOTAN_HAS_AES_ARMV8) || defined(BOTAN_HAS_AES_NI)
void hw_aes_encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void hw_aes_decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
#endif
secure_vector<uint32_t> m_EK, m_DK;
};
/**
* AES-192
*/
class AES_192 final : public Block_Cipher_Fixed_Params<16, 24>
{
public:
void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void clear() override;
std::string provider() const override;
std::string name() const override { return "AES-192"; }
std::unique_ptr<BlockCipher> new_object() const override { return std::make_unique<AES_192>(); }
size_t parallelism() const override;
private:
#if defined(BOTAN_HAS_AES_VPERM)
void vperm_encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void vperm_decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void vperm_key_schedule(const uint8_t key[], size_t length);
#endif
#if defined(BOTAN_HAS_AES_NI)
void aesni_key_schedule(const uint8_t key[], size_t length);
#endif
#if defined(BOTAN_HAS_AES_POWER8) || defined(BOTAN_HAS_AES_ARMV8) || defined(BOTAN_HAS_AES_NI)
void hw_aes_encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void hw_aes_decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
#endif
void key_schedule(const uint8_t key[], size_t length) override;
secure_vector<uint32_t> m_EK, m_DK;
};
/**
* AES-256
*/
class AES_256 final : public Block_Cipher_Fixed_Params<16, 32>
{
public:
void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
void clear() override;
std::string provider() const override;
std::string name() const override { return "AES-256"; }
std::unique_ptr<BlockCipher> new_object() const override { return std::make_unique<AES_256>(); }
size_t parallelism() const override;
private:
#if defined(BOTAN_HAS_AES_VPERM)
void vperm_encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void vperm_decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void vperm_key_schedule(const uint8_t key[], size_t length);
#endif
#if defined(BOTAN_HAS_AES_NI)
void aesni_key_schedule(const uint8_t key[], size_t length);
#endif
#if defined(BOTAN_HAS_AES_POWER8) || defined(BOTAN_HAS_AES_ARMV8) || defined(BOTAN_HAS_AES_NI)
void hw_aes_encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
void hw_aes_decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const;
#endif
void key_schedule(const uint8_t key[], size_t length) override;
secure_vector<uint32_t> m_EK, m_DK;
};
}
#endif
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