9 #ifndef BOTAN_AEAD_OCB_H__
10 #define BOTAN_AEAD_OCB_H__
12 #include <botan/aead.h>
13 #include <botan/block_cipher.h>
31 void set_associated_data(
const uint8_t ad[],
size_t ad_len)
override;
33 std::string name()
const override;
35 size_t update_granularity()
const override;
39 bool valid_nonce_length(
size_t)
const override;
41 size_t tag_size()
const override {
return m_tag_size; }
43 void clear()
override;
45 void reset()
override;
57 std::unique_ptr<L_computer>
m_L;
59 size_t m_block_index = 0;
65 void start_msg(
const uint8_t nonce[],
size_t nonce_len)
override;
67 void key_schedule(
const uint8_t key[],
size_t length)
override;
71 size_t m_tag_size = 0;
87 {
return input_length + tag_size(); }
91 size_t process(uint8_t buf[],
size_t size)
override;
95 void encrypt(uint8_t input[],
size_t blocks);
110 BOTAN_ASSERT(input_length >= tag_size(),
"Sufficient input");
111 return input_length - tag_size();
116 size_t process(uint8_t buf[],
size_t size)
override;
120 void decrypt(uint8_t input[],
size_t blocks);
std::unique_ptr< BlockCipher > m_cipher
size_t output_length(size_t input_length) const override
size_t tag_size() const override
#define BOTAN_ASSERT(expr, assertion_made)
std::string encrypt(const uint8_t input[], size_t input_len, const std::string &passphrase, RandomNumberGenerator &rng)
OCB_Decryption(BlockCipher *cipher, size_t tag_size=16)
std::vector< T, secure_allocator< T >> secure_vector
OCB_Encryption(BlockCipher *cipher, size_t tag_size=16)
std::string decrypt(const uint8_t input[], size_t input_len, const std::string &passphrase)
std::unique_ptr< L_computer > m_L
size_t output_length(size_t input_length) const override
secure_vector< uint8_t > m_ad_hash
size_t minimum_final_size() const override
secure_vector< uint8_t > m_checksum
size_t minimum_final_size() const override
secure_vector< uint8_t > m_offset