chacha20poly1305.h File Reference

Chacha20poly1305 functions. More...

Detailed Description

Chacha20poly1305 functions.

Author

Koen Zandberg koen@.nosp@m.berg.nosp@m.zand..nosp@m.net

Definition in file chacha20poly1305.h.

#include "crypto/poly1305.h"

Include dependency graph for chacha20poly1305.h:

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Data Structures
union	chacha20poly1305_ctx_t
	Chacha20poly1305 state struct. More...

Macros
#define	CHACHA20POLY1305_KEY_BYTES   (32U)
	Key length in bytes.
#define	CHACHA20POLY1305_NONCE_BYTES   (12U)
	Nonce length in bytes.
#define	CHACHA20POLY1305_TAG_BYTES   (16U)
	Tag length in bytes.

Functions
void	chacha20poly1305_encrypt (uint8_t *cipher, const uint8_t *msg, size_t msglen, const uint8_t *aad, size_t aadlen, const uint8_t *key, const uint8_t *nonce)
	Encrypt a plaintext to ciphertext and append a tag to protect the ciphertext and additional data.
int	chacha20poly1305_decrypt (const uint8_t *cipher, size_t cipherlen, uint8_t *msg, size_t *msglen, const uint8_t *aad, size_t aadlen, const uint8_t *key, const uint8_t *nonce)
	Verify the tag and decrypt a ciphertext to plaintext.
void	chacha20_encrypt_decrypt (const uint8_t *input, uint8_t *output, const uint8_t *key, const uint8_t *nonce, size_t inputlen)
	Encrypt a plaintext to ciphertext with the ChaCha20 algorithm.