9#ifndef BOTAN_AEAD_OCB_H_
10#define BOTAN_AEAD_OCB_H_
12#include <botan/aead.h>
38 std::string
name()
const override;
46 size_t tag_size()
const override {
return m_tag_size; }
48 void clear()
override;
50 void reset()
override;
62 size_t par_bytes()
const {
return m_checksum.size(); }
66 std::unique_ptr<L_computer>
m_L;
68 size_t m_block_index = 0;
73 void start_msg(
const uint8_t nonce[],
size_t nonce_len)
override;
75 void key_schedule(
const uint8_t key[],
size_t length)
override;
79 const size_t m_tag_size;
80 const size_t m_block_size;
81 const size_t m_par_blocks;
99 {
return input_length +
tag_size(); }
103 size_t process(uint8_t buf[],
size_t size)
override;
107 void encrypt(uint8_t input[],
size_t blocks);
128 size_t process(uint8_t buf[],
size_t size)
override;
132 void decrypt(uint8_t input[],
size_t blocks);
#define BOTAN_ASSERT(expr, assertion_made)
virtual void set_associated_data(const uint8_t ad[], size_t ad_len)=0
virtual void start_msg(const uint8_t nonce[], size_t nonce_len)=0
virtual size_t process(uint8_t msg[], size_t msg_len)=0
virtual void finish(secure_vector< uint8_t > &final_block, size_t offset=0)=0
virtual size_t tag_size() const
virtual size_t update_granularity() const =0
virtual bool valid_nonce_length(size_t nonce_len) const =0
size_t output_length(size_t input_length) const override
OCB_Decryption(BlockCipher *cipher, size_t tag_size=16)
size_t minimum_final_size() const override
size_t minimum_final_size() const override
size_t output_length(size_t input_length) const override
OCB_Encryption(BlockCipher *cipher, size_t tag_size=16)
size_t block_size() const
size_t par_blocks() const
secure_vector< uint8_t > m_checksum
size_t tag_size() const override
std::unique_ptr< BlockCipher > m_cipher
secure_vector< uint8_t > m_ad_hash
std::unique_ptr< L_computer > m_L
virtual std::string name() const =0
virtual Key_Length_Specification key_spec() const =0
int(* final)(unsigned char *, CTX *)
#define BOTAN_PUBLIC_API(maj, min)
#define BOTAN_FUTURE_INTERNAL_HEADER(hdr)
std::vector< T, secure_allocator< T > > secure_vector