From a8a6efb2319f739e5faae550561dc27d9dd1e88d Mon Sep 17 00:00:00 2001 From: vnugent Date: Sun, 26 May 2024 17:39:40 -0400 Subject: chore: Update libs, reorder files, internalize private headers --- src/nc-crypto.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 src/nc-crypto.h (limited to 'src/nc-crypto.h') diff --git a/src/nc-crypto.h b/src/nc-crypto.h new file mode 100644 index 0000000..f04ebe0 --- /dev/null +++ b/src/nc-crypto.h @@ -0,0 +1,59 @@ + +/* +* Copyright (c) 2024 Vaughn Nugent +* +* Package: noscrypt +* File: nc-crypto.h +* +* This library is free software; you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public License +* as published by the Free Software Foundation; either version 2.1 +* of the License, or (at your option) any later version. +* +* This library is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public License +* along with noscrypt. If not, see http://www.gnu.org/licenses/. +*/ + +#pragma once + +#ifndef _NC_CRYPTO_H +#define _NC_CRYPTO_H + +#include + +#define CHACHA_NONCE_SIZE 0x0cu /* Size of 12 is set by the cipher spec */ +#define CHACHA_KEY_SIZE 0x20u /* Size of 32 is set by the cipher spec */ +#define SHA256_DIGEST_SIZE 0x20u /* Size of 32 is set by the cipher spec */ + +typedef uint8_t cstatus_t; +#define CSTATUS_OK ((cstatus_t)0x01u) +#define CSTATUS_FAIL ((cstatus_t)0x00u) + +typedef uint8_t sha256_t[SHA256_DIGEST_SIZE]; + +uint32_t ncCryptoFixedTimeComp(const uint8_t* a, const uint8_t* b, uint32_t size); + +void ncCryptoSecureZero(void* ptr, uint32_t size); + +cstatus_t ncCryptoDigestSha256(const cspan_t* data, sha256_t digestOut32); + +cstatus_t ncCryptoHmacSha256(const cspan_t* key, const cspan_t* data, sha256_t hmacOut32); + +cstatus_t ncCryptoSha256HkdfExpand(const cspan_t* prk, const cspan_t* info, span_t* okm); + +cstatus_t ncCryptoSha256HkdfExtract(const cspan_t* salt, const cspan_t* ikm, sha256_t prk); + +cstatus_t ncCryptoChacha20( + const uint8_t key[CHACHA_KEY_SIZE], + const uint8_t nonce[CHACHA_NONCE_SIZE], + const uint8_t* input, + uint8_t* output, + uint32_t dataSize +); + +#endif /* !_NC_CRYPTO_H */ -- cgit