Go to the documentation of this file.
59 #ifndef MBEDTLS_CHACHAPOLY_H
60 #define MBEDTLS_CHACHAPOLY_H
62 #if !defined(MBEDTLS_CONFIG_FILE)
65 #include MBEDTLS_CONFIG_FILE
71 #define MBEDTLS_ERR_CHACHAPOLY_BAD_STATE -0x0054
72 #define MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED -0x0056
85 #if !defined(MBEDTLS_CHACHAPOLY_ALT)
101 #include "chachapoly_alt.h"
169 const unsigned char key[32] );
197 const unsigned char nonce[12],
240 const unsigned char *aad,
276 const unsigned char *input,
277 unsigned char *output );
296 unsigned char mac[16] );
329 const unsigned char nonce[12],
330 const unsigned char *aad,
332 const unsigned char *input,
333 unsigned char *output,
334 unsigned char tag[16] );
363 const unsigned char nonce[12],
364 const unsigned char *aad,
366 const unsigned char tag[16],
367 const unsigned char *input,
368 unsigned char *output );
370 #if defined(MBEDTLS_SELF_TEST)
mbedtls_chachapoly_mode_t mode
@ MBEDTLS_CHACHAPOLY_DECRYPT
int mbedtls_chachapoly_setkey(mbedtls_chachapoly_context *ctx, const unsigned char key[32])
This function sets the ChaCha20-Poly1305 symmetric encryption key.
This file contains ChaCha20 definitions and functions.
mbedtls_chacha20_context chacha20_ctx
This file contains Poly1305 definitions and functions.
int mbedtls_chachapoly_update(mbedtls_chachapoly_context *ctx, size_t len, const unsigned char *input, unsigned char *output)
Thus function feeds data to be encrypted or decrypted into an on-going ChaCha20-Poly1305 operation.
mbedtls_poly1305_context poly1305_ctx
mbedtls_chachapoly_mode_t
struct mbedtls_chachapoly_context mbedtls_chachapoly_context
int mbedtls_chachapoly_self_test(int verbose)
The ChaCha20-Poly1305 checkup routine.
void mbedtls_chachapoly_free(mbedtls_chachapoly_context *ctx)
This function releases and clears the specified ChaCha20-Poly1305 context.
int mbedtls_chachapoly_encrypt_and_tag(mbedtls_chachapoly_context *ctx, size_t length, const unsigned char nonce[12], const unsigned char *aad, size_t aad_len, const unsigned char *input, unsigned char *output, unsigned char tag[16])
This function performs a complete ChaCha20-Poly1305 authenticated encryption with the previously-set ...
@ MBEDTLS_CHACHAPOLY_ENCRYPT
Configuration options (set of defines)
int mbedtls_chachapoly_update_aad(mbedtls_chachapoly_context *ctx, const unsigned char *aad, size_t aad_len)
This function feeds additional data to be authenticated into an ongoing ChaCha20-Poly1305 operation.
int mbedtls_chachapoly_auth_decrypt(mbedtls_chachapoly_context *ctx, size_t length, const unsigned char nonce[12], const unsigned char *aad, size_t aad_len, const unsigned char tag[16], const unsigned char *input, unsigned char *output)
This function performs a complete ChaCha20-Poly1305 authenticated decryption with the previously-set ...
int mbedtls_chachapoly_finish(mbedtls_chachapoly_context *ctx, unsigned char mac[16])
This function finished the ChaCha20-Poly1305 operation and generates the MAC (authentication tag).
int mbedtls_chachapoly_starts(mbedtls_chachapoly_context *ctx, const unsigned char nonce[12], mbedtls_chachapoly_mode_t mode)
This function starts a ChaCha20-Poly1305 encryption or decryption operation.
void mbedtls_chachapoly_init(mbedtls_chachapoly_context *ctx)
This function initializes the specified ChaCha20-Poly1305 context.