Lucas/lilcrypto
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

initial import

Browse source
This commit is contained in:
Lucas Gabriel Vuotto 2024-05-31 10:59:58 +00:00
commit 7bc527c769
28 changed files with 2071 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

106
lilcrypto.h Normal file
View file

@ -0,0 +1,106 @@
/*
* Copyright (c) 2024 Lucas Gabriel Vuotto <lucas@lgv5.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stddef.h>
#include <stdint.h>
/*
* Constants.
*/
/* Authentitcation. */
#define LC_POLY1305_KEYLEN 32
#define LC_POLY1305_TAGLEN 16
/* Ciphers. */
#define LC_CHACHA20_KEYLEN 32
#define LC_CHACHA20_IVLEN 12
/*
* Constant-time operations.
*/
uint32_t lc_ct_cmp(const uint8_t *, const uint8_t *, size_t);
/*
* Message authentication code.
*/
struct lc_auth_ctx;
struct lc_auth_impl;
int lc_auth_init(struct lc_auth_ctx *, const uint8_t *, size_t);
int lc_auth_update(struct lc_auth_ctx *, const uint8_t *, size_t);
int lc_auth_final(struct lc_auth_ctx *, uint8_t *, size_t *);
int lc_auth(const struct lc_auth_impl *, const uint8_t *, size_t,
uint8_t *, size_t *, const uint8_t *, size_t);
struct lc_auth_ctx *lc_auth_ctx_new(const struct lc_auth_impl *);
void lc_auth_ctx_free(struct lc_auth_ctx *);
const struct lc_auth_impl *lc_auth_impl_poly1305(void);
/*
* Ciphers.
*/
struct lc_cipher_ctx;
struct lc_cipher_impl;
int lc_cipher_encrypt_init(struct lc_cipher_ctx *, const uint8_t *, size_t,
const uint8_t *, size_t);
int lc_cipher_encrypt_update(struct lc_cipher_ctx *, uint8_t *, size_t *,
const uint8_t *, size_t);
int lc_cipher_encrypt_final(struct lc_cipher_ctx *, uint8_t *, size_t *);
int lc_cipher_encrypt(const struct lc_cipher_impl *, const uint8_t *,
size_t, const uint8_t *, size_t, uint8_t *, size_t *,
const uint8_t *, size_t);
int lc_cipher_decrypt_init(struct lc_cipher_ctx *, const uint8_t *, size_t,
const uint8_t *, size_t);
int lc_cipher_decrypt_update(struct lc_cipher_ctx *, uint8_t *, size_t *,
const uint8_t *, size_t);
int lc_cipher_decrypt_final(struct lc_cipher_ctx *, uint8_t *, size_t *);
int lc_cipher_decrypt(const struct lc_cipher_impl *, const uint8_t *,
size_t, const uint8_t *, size_t, uint8_t *, size_t *,
const uint8_t *, size_t);
struct lc_cipher_ctx *lc_cipher_ctx_new(const struct lc_cipher_impl *);
void lc_cipher_ctx_free(struct lc_cipher_ctx *);
const struct lc_cipher_impl *lc_cipher_impl_chacha20(void);
/*
* Authenticated encryption with additional data.
*/
struct lc_aead_impl;
int lc_aead_seal(const struct lc_aead_impl *, const uint8_t *, size_t,
const uint8_t *, size_t, uint8_t *, size_t *, const uint8_t *, size_t,
const uint8_t *, size_t);
int lc_aead_open(const struct lc_aead_impl *, const uint8_t *, size_t,
const uint8_t *, size_t, uint8_t *, size_t *, const uint8_t *, size_t,
const uint8_t *, size_t);
const struct lc_aead_impl *lc_aead_impl_chacha20_poly1305(void);