9#ifndef BOTAN_AEAD_CHACHA20_POLY1305_H_
10#define BOTAN_AEAD_CHACHA20_POLY1305_H_
12#include <botan/aead.h>
13#include <botan/stream_cipher.h>
34 std::string
name()
const override {
return "ChaCha20Poly1305"; }
43 size_t tag_size()
const override {
return 16; }
45 void clear()
override;
47 void reset()
override;
56 size_t m_nonce_len = 0;
57 size_t m_ctext_len = 0;
59 bool cfrg_version()
const {
return m_nonce_len == 12 || m_nonce_len == 24; }
60 void update_len(
size_t len);
62 void start_msg(
const uint8_t nonce[],
size_t nonce_len)
override;
64 void key_schedule(
const uint8_t key[],
size_t length)
override;
74 {
return input_length +
tag_size(); }
78 size_t process(uint8_t buf[],
size_t size)
override;
97 size_t process(uint8_t buf[],
size_t size)
override;
#define BOTAN_ASSERT(expr, assertion_made)
virtual void set_associated_data(const uint8_t ad[], size_t ad_len)=0
size_t output_length(size_t input_length) const override
size_t minimum_final_size() const override
size_t minimum_final_size() const override
size_t output_length(size_t input_length) const override
secure_vector< uint8_t > m_ad
std::string name() const override
std::unique_ptr< StreamCipher > m_chacha
size_t update_granularity() const override
bool cfrg_version() const
size_t tag_size() const override
bool associated_data_requires_key() const override
Key_Length_Specification key_spec() const override
std::unique_ptr< MessageAuthenticationCode > m_poly1305
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 bool valid_nonce_length(size_t nonce_len) 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