mirror of
https://repo.dactyloidae.xyz/Dactyloidae/UXP.git
synced 2026-08-30 19:28:40 +09:00
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* Copyright 2016-2017 INRIA and Microsoft Corporation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "kremlib.h"
|
|
#ifndef __Hacl_Chacha20_H
|
|
#define __Hacl_Chacha20_H
|
|
|
|
typedef uint32_t Hacl_Impl_Xor_Lemmas_u32;
|
|
|
|
typedef uint8_t Hacl_Impl_Xor_Lemmas_u8;
|
|
|
|
typedef uint8_t *Hacl_Lib_LoadStore32_uint8_p;
|
|
|
|
typedef uint32_t Hacl_Impl_Chacha20_u32;
|
|
|
|
typedef uint32_t Hacl_Impl_Chacha20_h32;
|
|
|
|
typedef uint8_t *Hacl_Impl_Chacha20_uint8_p;
|
|
|
|
typedef uint32_t *Hacl_Impl_Chacha20_state;
|
|
|
|
typedef uint32_t Hacl_Impl_Chacha20_idx;
|
|
|
|
typedef struct
|
|
{
|
|
void *k;
|
|
void *n;
|
|
} Hacl_Impl_Chacha20_log_t_;
|
|
|
|
typedef void *Hacl_Impl_Chacha20_log_t;
|
|
|
|
typedef uint32_t Hacl_Lib_Create_h32;
|
|
|
|
typedef uint8_t *Hacl_Chacha20_uint8_p;
|
|
|
|
typedef uint32_t Hacl_Chacha20_uint32_t;
|
|
|
|
void Hacl_Chacha20_chacha20_key_block(uint8_t *block, uint8_t *k, uint8_t *n1, uint32_t ctr);
|
|
|
|
/*
|
|
This function implements Chacha20
|
|
|
|
val chacha20 :
|
|
output:uint8_p ->
|
|
plain:uint8_p{ disjoint output plain } ->
|
|
len:uint32_t{ v len = length output /\ v len = length plain } ->
|
|
key:uint8_p{ length key = 32 } ->
|
|
nonce:uint8_p{ length nonce = 12 } ->
|
|
ctr:uint32_t{ v ctr + length plain / 64 < pow2 32 } ->
|
|
Stack unit
|
|
(requires
|
|
fun h -> live h output /\ live h plain /\ live h nonce /\ live h key)
|
|
(ensures
|
|
fun h0 _ h1 ->
|
|
live h1 output /\ live h0 plain /\ modifies_1 output h0 h1 /\
|
|
live h0 nonce /\
|
|
live h0 key /\
|
|
h1.[ output ] ==
|
|
chacha20_encrypt_bytes h0.[ key ] h0.[ nonce ] (v ctr) h0.[ plain ])
|
|
*/
|
|
void
|
|
Hacl_Chacha20_chacha20(
|
|
uint8_t *output,
|
|
uint8_t *plain,
|
|
uint32_t len,
|
|
uint8_t *k,
|
|
uint8_t *n1,
|
|
uint32_t ctr);
|
|
#endif
|