From 8fe93b8e1d1d968bdf0b8a35335b060d92a9d7d7 Mon Sep 17 00:00:00 2001 From: joe Date: Sat, 8 Jul 2017 22:10:40 -0400 Subject: WIP: Tox encryption. --- cbits/cryptonite_salsa.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 cbits/cryptonite_salsa.h (limited to 'cbits/cryptonite_salsa.h') diff --git a/cbits/cryptonite_salsa.h b/cbits/cryptonite_salsa.h new file mode 100644 index 00000000..33e9cda9 --- /dev/null +++ b/cbits/cryptonite_salsa.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2014 Vincent Hanquez + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the author nor the names of his contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#ifndef CRYPTONITE_SALSA +#define CRYPTONITE_SALSA + +typedef union { + uint64_t q[8]; + uint32_t d[16]; + uint8_t b[64]; +} block; + +typedef block cryptonite_salsa_state; + +typedef struct { + cryptonite_salsa_state st; + uint8_t prev[64]; + uint8_t prev_ofs; + uint8_t prev_len; + uint8_t nb_rounds; +} cryptonite_salsa_context; + +/* for scrypt */ +void cryptonite_salsa_core_xor(int rounds, block *out, block *in); + +void cryptonite_salsa_init_core(cryptonite_salsa_state *st, uint32_t keylen, const uint8_t *key, uint32_t ivlen, const uint8_t *iv); +void cryptonite_salsa_init(cryptonite_salsa_context *ctx, uint8_t nb_rounds, uint32_t keylen, const uint8_t *key, uint32_t ivlen, const uint8_t *iv); +void cryptonite_salsa_combine(uint8_t *dst, cryptonite_salsa_context *st, const uint8_t *src, uint32_t bytes); +void cryptonite_salsa_generate(uint8_t *dst, cryptonite_salsa_context *st, uint32_t bytes); + +#endif -- cgit v1.2.3