Nilorea Library
C utilities for networking, threading, graphics
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n_digest.h
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1/*
2 * Nilorea Library
3 * Copyright (C) 2005-2026 Castagnier Mickael
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
14 * implied. See the License for the specific language governing
15 * permissions and limitations under the License.
16 *
17 * SPDX-License-Identifier: Apache-2.0
18 */
19
27#ifndef __NILOREA_DIGEST_HEADER
28#define __NILOREA_DIGEST_HEADER
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
39#ifdef HAVE_OPENSSL
40
41#include "nilorea/n_str.h"
42
43#include <stddef.h>
44
46#define N_DIGEST_MD5_LEN 16
48#define N_DIGEST_SHA1_LEN 20
50#define N_DIGEST_SHA256_LEN 32
52#define N_DIGEST_SHA384_LEN 48
54#define N_DIGEST_SHA512_LEN 64
55
57int n_digest_md5(const unsigned char* data, size_t len, unsigned char* out);
59int n_digest_sha1(const unsigned char* data, size_t len, unsigned char* out);
61int n_digest_sha256(const unsigned char* data, size_t len, unsigned char* out);
63int n_digest_sha384(const unsigned char* data, size_t len, unsigned char* out);
65int n_digest_sha512(const unsigned char* data, size_t len, unsigned char* out);
66
68N_STR* n_digest_sha256_hex(const unsigned char* data, size_t len);
69
71int n_hmac_sha1(const unsigned char* key, size_t key_len, const unsigned char* data, size_t data_len, unsigned char* out);
73int n_hmac_sha256(const unsigned char* key, size_t key_len, const unsigned char* data, size_t data_len, unsigned char* out);
75int n_hmac_sha384(const unsigned char* key, size_t key_len, const unsigned char* data, size_t data_len, unsigned char* out);
77int n_hmac_sha512(const unsigned char* key, size_t key_len, const unsigned char* data, size_t data_len, unsigned char* out);
78
80int n_digest_consttime_equal(const unsigned char* a, const unsigned char* b, size_t len);
81
83int n_pbkdf2_hmac_sha1(const unsigned char* pass, size_t pass_len, const unsigned char* salt, size_t salt_len, unsigned int iterations, unsigned char* out, size_t out_len);
85int n_pbkdf2_hmac_sha256(const unsigned char* pass, size_t pass_len, const unsigned char* salt, size_t salt_len, unsigned int iterations, unsigned char* out, size_t out_len);
86
88#define N_AEAD_AES256GCM_KEY_LEN 32
90#define N_AEAD_AES256GCM_TAG_LEN 16
91
93int n_aead_aes256gcm_encrypt(const unsigned char* key, const unsigned char* iv, size_t iv_len, const unsigned char* aad, size_t aad_len, const unsigned char* pt, size_t pt_len, unsigned char* out_ct, unsigned char* out_tag);
95int n_aead_aes256gcm_decrypt(const unsigned char* key, const unsigned char* iv, size_t iv_len, const unsigned char* aad, size_t aad_len, const unsigned char* ct, size_t ct_len, const unsigned char* tag, unsigned char* out_pt);
96
97#endif /* HAVE_OPENSSL */
98
103#ifdef __cplusplus
104}
105#endif
106
107#endif /* __NILOREA_DIGEST_HEADER */
key
char * key
Definition ex_network_ssl.c:39
n_digest_sha256
int n_digest_sha256(const unsigned char *data, size_t len, unsigned char *out)
compute the SHA-256 digest of len bytes of data into out (N_DIGEST_SHA256_LEN bytes).
Definition n_digest.c:66
n_digest_sha512
int n_digest_sha512(const unsigned char *data, size_t len, unsigned char *out)
compute the SHA-512 digest of len bytes of data into out (N_DIGEST_SHA512_LEN bytes).
Definition n_digest.c:74
n_pbkdf2_hmac_sha1
int n_pbkdf2_hmac_sha1(const unsigned char *pass, size_t pass_len, const unsigned char *salt, size_t salt_len, unsigned int iterations, unsigned char *out, size_t out_len)
derive out_len key bytes from pass and salt with PBKDF2-HMAC-SHA1 over iterations rounds (RFC 2898).
Definition n_digest.c:149
n_hmac_sha256
int n_hmac_sha256(const unsigned char *key, size_t key_len, const unsigned char *data, size_t data_len, unsigned char *out)
compute HMAC-SHA256 of data under key into out (N_DIGEST_SHA256_LEN bytes).
Definition n_digest.c:112
n_aead_aes256gcm_encrypt
int n_aead_aes256gcm_encrypt(const unsigned char *key, const unsigned char *iv, size_t iv_len, const unsigned char *aad, size_t aad_len, const unsigned char *pt, size_t pt_len, unsigned char *out_ct, unsigned char *out_tag)
AES-256-GCM authenticated encryption.
Definition n_digest.c:157
n_hmac_sha1
int n_hmac_sha1(const unsigned char *key, size_t key_len, const unsigned char *data, size_t data_len, unsigned char *out)
compute HMAC-SHA1 of data under key into out (N_DIGEST_SHA1_LEN bytes).
Definition n_digest.c:108
n_digest_sha1
int n_digest_sha1(const unsigned char *data, size_t len, unsigned char *out)
compute the SHA-1 digest of len bytes of data into out (N_DIGEST_SHA1_LEN bytes).
Definition n_digest.c:62
n_pbkdf2_hmac_sha256
int n_pbkdf2_hmac_sha256(const unsigned char *pass, size_t pass_len, const unsigned char *salt, size_t salt_len, unsigned int iterations, unsigned char *out, size_t out_len)
derive out_len key bytes from pass and salt with PBKDF2-HMAC-SHA256 over iterations rounds (RFC 2898)...
Definition n_digest.c:153
n_digest_consttime_equal
int n_digest_consttime_equal(const unsigned char *a, const unsigned char *b, size_t len)
constant-time comparison of two equal-length byte buffers (for verifying MACs/signatures without a ti...
Definition n_digest.c:124
n_hmac_sha512
int n_hmac_sha512(const unsigned char *key, size_t key_len, const unsigned char *data, size_t data_len, unsigned char *out)
compute HMAC-SHA512 of data under key into out (N_DIGEST_SHA512_LEN bytes).
Definition n_digest.c:120
n_digest_sha384
int n_digest_sha384(const unsigned char *data, size_t len, unsigned char *out)
compute the SHA-384 digest of len bytes of data into out (N_DIGEST_SHA384_LEN bytes).
Definition n_digest.c:70
n_hmac_sha384
int n_hmac_sha384(const unsigned char *key, size_t key_len, const unsigned char *data, size_t data_len, unsigned char *out)
compute HMAC-SHA384 of data under key into out (N_DIGEST_SHA384_LEN bytes).
Definition n_digest.c:116
n_aead_aes256gcm_decrypt
int n_aead_aes256gcm_decrypt(const unsigned char *key, const unsigned char *iv, size_t iv_len, const unsigned char *aad, size_t aad_len, const unsigned char *ct, size_t ct_len, const unsigned char *tag, unsigned char *out_pt)
AES-256-GCM authenticated decryption.
Definition n_digest.c:195
n_digest_md5
int n_digest_md5(const unsigned char *data, size_t len, unsigned char *out)
compute the MD5 digest of len bytes of data into out (N_DIGEST_MD5_LEN bytes).
Definition n_digest.c:58
n_digest_sha256_hex
N_STR * n_digest_sha256_hex(const unsigned char *data, size_t len)
compute the SHA-256 digest of data and return it as a lowercase hex N_STR; free with free_nstr.
Definition n_digest.c:78
N_STR
A box including a string and his lenght.
Definition n_str.h:61
n_str.h
N_STR and string function declaration.