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Diffstat (limited to 'src/lib/modes/ecb/ecb.h')
-rw-r--r-- | src/lib/modes/ecb/ecb.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/lib/modes/ecb/ecb.h b/src/lib/modes/ecb/ecb.h new file mode 100644 index 000000000..441eafbc1 --- /dev/null +++ b/src/lib/modes/ecb/ecb.h @@ -0,0 +1,89 @@ +/* +* ECB Mode +* (C) 1999-2009,2013 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_MODE_ECB_H__ +#define BOTAN_MODE_ECB_H__ + +#include <botan/cipher_mode.h> +#include <botan/block_cipher.h> +#include <botan/mode_pad.h> +#include <memory> + +namespace Botan { + +/** +* ECB mode +*/ +class BOTAN_DLL ECB_Mode : public Cipher_Mode + { + public: + secure_vector<byte> start(const byte nonce[], size_t nonce_len) override; + + std::string name() const override; + + size_t update_granularity() const override; + + Key_Length_Specification key_spec() const override; + + size_t default_nonce_length() const override; + + bool valid_nonce_length(size_t n) const override; + + void clear(); + protected: + ECB_Mode(BlockCipher* cipher, BlockCipherModePaddingMethod* padding); + + const BlockCipher& cipher() const { return *m_cipher; } + + const BlockCipherModePaddingMethod& padding() const { return *m_padding; } + + private: + void key_schedule(const byte key[], size_t length) override; + + std::unique_ptr<BlockCipher> m_cipher; + std::unique_ptr<BlockCipherModePaddingMethod> m_padding; + }; + +/** +* ECB Encryption +*/ +class BOTAN_DLL ECB_Encryption : public ECB_Mode + { + public: + ECB_Encryption(BlockCipher* cipher, BlockCipherModePaddingMethod* padding) : + ECB_Mode(cipher, padding) {} + + void update(secure_vector<byte>& blocks, size_t offset = 0) override; + + void finish(secure_vector<byte>& final_block, size_t offset = 0) override; + + size_t output_length(size_t input_length) const override; + + size_t minimum_final_size() const override; + }; + +/** +* ECB Decryption +*/ +class BOTAN_DLL ECB_Decryption : public ECB_Mode + { + public: + ECB_Decryption(BlockCipher* cipher, BlockCipherModePaddingMethod* padding) : + ECB_Mode(cipher, padding) {} + + void update(secure_vector<byte>& blocks, size_t offset = 0) override; + + void finish(secure_vector<byte>& final_block, size_t offset = 0) override; + + size_t output_length(size_t input_length) const override; + + size_t minimum_final_size() const override; + }; + +} + +#endif |