mirror of
https://github.com/irungentoo/toxcore.git
synced 2024-03-22 13:30:51 +08:00
Properly ported a toxencryptsave function to NaCl.
removed now useless files.
This commit is contained in:
irungentoo
parent
cbb526e83f
commit
331efce602
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@ -20,10 +20,6 @@ libtoxencryptsave_la_SOURCES = ../toxencryptsave/crypto_pwhash_scryptsalsa208sha
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../toxencryptsave/crypto_pwhash_scryptsalsa208sha256/utils.h \
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../toxencryptsave/crypto_pwhash_scryptsalsa208sha256/nosse/pwhash_scryptsalsa208sha256_nosse.c \
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../toxencryptsave/crypto_pwhash_scryptsalsa208sha256/sse/pwhash_scryptsalsa208sha256_sse.c \
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../toxencryptsave/crypto_pwhash_scryptsalsa208sha256/hmac_hmacsha256.c \
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../toxencryptsave/crypto_pwhash_scryptsalsa208sha256/crypto_auth_hmacsha256.h \
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../toxencryptsave/crypto_pwhash_scryptsalsa208sha256/crypto_hash_sha256.h \
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../toxencryptsave/crypto_pwhash_scryptsalsa208sha256/hash_sha256.c \
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../toxencryptsave/toxencryptsave.h \
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../toxencryptsave/toxencryptsave.c
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@ -1,65 +0,0 @@
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef VANILLA_NACL /* toxcore only uses this when libsodium is unavailable */
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#ifndef crypto_auth_hmacsha256_H
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#define crypto_auth_hmacsha256_H
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#include <stddef.h>
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#include "crypto_hash_sha256.h"
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#include "export.h"
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#ifdef __cplusplus
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# if __GNUC__
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# pragma GCC diagnostic ignored "-Wlong-long"
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# endif
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extern "C" {
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#endif
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typedef struct crypto_auth_hmacsha256_state {
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crypto_hash_sha256_state ictx;
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crypto_hash_sha256_state octx;
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} crypto_auth_hmacsha256_state;
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#define crypto_auth_hmacsha256_BYTES 32U
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SODIUM_EXPORT
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size_t crypto_auth_hmacsha256_bytes(void);
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#define crypto_auth_hmacsha256_KEYBYTES 32U
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SODIUM_EXPORT
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size_t crypto_auth_hmacsha256_keybytes(void);
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SODIUM_EXPORT
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int crypto_auth_hmacsha256(unsigned char *out,
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const unsigned char *in,
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unsigned long long inlen,
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const unsigned char *k);
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SODIUM_EXPORT
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int crypto_auth_hmacsha256_verify(const unsigned char *h,
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const unsigned char *in,
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unsigned long long inlen,
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const unsigned char *k);
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SODIUM_EXPORT
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int crypto_auth_hmacsha256_init(crypto_auth_hmacsha256_state *state,
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const unsigned char *key,
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size_t keylen);
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SODIUM_EXPORT
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int crypto_auth_hmacsha256_update(crypto_auth_hmacsha256_state *state,
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const unsigned char *in,
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unsigned long long inlen);
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SODIUM_EXPORT
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int crypto_auth_hmacsha256_final(crypto_auth_hmacsha256_state *state,
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unsigned char *out);
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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@ -1,61 +0,0 @@
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef VANILLA_NACL /* toxcore only uses this when libsodium is unavailable */
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#ifndef crypto_hash_sha256_H
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#define crypto_hash_sha256_H
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/*
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* WARNING: Unless you absolutely need to use SHA256 for interoperatibility,
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* purposes, you might want to consider crypto_generichash() instead.
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* Unlike SHA256, crypto_generichash() is not vulnerable to length
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* extension attacks.
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "export.h"
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#ifdef __cplusplus
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# if __GNUC__
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# pragma GCC diagnostic ignored "-Wlong-long"
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# endif
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extern "C" {
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#endif
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typedef struct crypto_hash_sha256_state {
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uint32_t state[8];
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uint32_t count[2];
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unsigned char buf[64];
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} crypto_hash_sha256_state;
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#define crypto_hash_sha256_BYTES 32U
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SODIUM_EXPORT
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size_t crypto_hash_sha256_bytes(void);
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SODIUM_EXPORT
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int crypto_hash_sha256(unsigned char *out, const unsigned char *in,
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unsigned long long inlen);
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SODIUM_EXPORT
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int crypto_hash_sha256_init(crypto_hash_sha256_state *state);
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SODIUM_EXPORT
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int crypto_hash_sha256_update(crypto_hash_sha256_state *state,
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const unsigned char *in,
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unsigned long long inlen);
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SODIUM_EXPORT
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int crypto_hash_sha256_final(crypto_hash_sha256_state *state,
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unsigned char *out);
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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@ -1,300 +0,0 @@
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef VANILLA_NACL /* toxcore only uses this when libsodium is unavailable */
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/*-
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* Copyright 2005,2007,2009 Colin Percival
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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//#include "api.h"
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#include "crypto_hash_sha256.h"
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#include "utils.h"
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#include <sys/types.h>
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#include <limits.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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/* Avoid namespace collisions with BSD <sys/endian.h>. */
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#define be32dec _sha256_be32dec
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#define be32enc _sha256_be32enc
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static inline uint32_t
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be32dec(const void *pp)
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{
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const uint8_t *p = (uint8_t const *)pp;
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return ((uint32_t)(p[3]) + ((uint32_t)(p[2]) << 8) +
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((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24));
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}
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static inline void
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be32enc(void *pp, uint32_t x)
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{
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uint8_t * p = (uint8_t *)pp;
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p[3] = x & 0xff;
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p[2] = (x >> 8) & 0xff;
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p[1] = (x >> 16) & 0xff;
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p[0] = (x >> 24) & 0xff;
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}
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static void
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be32enc_vect(unsigned char *dst, const uint32_t *src, size_t len)
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{
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size_t i;
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for (i = 0; i < len / 4; i++) {
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be32enc(dst + i * 4, src[i]);
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}
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}
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static void
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be32dec_vect(uint32_t *dst, const unsigned char *src, size_t len)
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{
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size_t i;
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for (i = 0; i < len / 4; i++) {
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dst[i] = be32dec(src + i * 4);
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}
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}
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#define Ch(x, y, z) ((x & (y ^ z)) ^ z)
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#define Maj(x, y, z) ((x & (y | z)) | (y & z))
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#define SHR(x, n) (x >> n)
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#define ROTR(x, n) ((x >> n) | (x << (32 - n)))
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#define S0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
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#define S1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
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#define s0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3))
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#define s1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10))
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#define RND(a, b, c, d, e, f, g, h, k) \
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t0 = h + S1(e) + Ch(e, f, g) + k; \
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t1 = S0(a) + Maj(a, b, c); \
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d += t0; \
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h = t0 + t1;
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#define RNDr(S, W, i, k) \
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RND(S[(64 - i) % 8], S[(65 - i) % 8], \
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S[(66 - i) % 8], S[(67 - i) % 8], \
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S[(68 - i) % 8], S[(69 - i) % 8], \
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S[(70 - i) % 8], S[(71 - i) % 8], \
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W[i] + k)
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static void
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SHA256_Transform(uint32_t *state, const unsigned char block[64])
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{
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uint32_t W[64];
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uint32_t S[8];
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uint32_t t0, t1;
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int i;
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be32dec_vect(W, block, 64);
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for (i = 16; i < 64; i++) {
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W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16];
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}
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memcpy(S, state, 32);
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RNDr(S, W, 0, 0x428a2f98);
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RNDr(S, W, 1, 0x71374491);
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RNDr(S, W, 2, 0xb5c0fbcf);
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RNDr(S, W, 3, 0xe9b5dba5);
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RNDr(S, W, 4, 0x3956c25b);
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RNDr(S, W, 5, 0x59f111f1);
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RNDr(S, W, 6, 0x923f82a4);
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RNDr(S, W, 7, 0xab1c5ed5);
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RNDr(S, W, 8, 0xd807aa98);
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RNDr(S, W, 9, 0x12835b01);
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RNDr(S, W, 10, 0x243185be);
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RNDr(S, W, 11, 0x550c7dc3);
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RNDr(S, W, 12, 0x72be5d74);
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RNDr(S, W, 13, 0x80deb1fe);
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RNDr(S, W, 14, 0x9bdc06a7);
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RNDr(S, W, 15, 0xc19bf174);
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RNDr(S, W, 16, 0xe49b69c1);
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RNDr(S, W, 17, 0xefbe4786);
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RNDr(S, W, 18, 0x0fc19dc6);
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RNDr(S, W, 19, 0x240ca1cc);
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RNDr(S, W, 20, 0x2de92c6f);
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RNDr(S, W, 21, 0x4a7484aa);
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RNDr(S, W, 22, 0x5cb0a9dc);
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RNDr(S, W, 23, 0x76f988da);
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RNDr(S, W, 24, 0x983e5152);
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RNDr(S, W, 25, 0xa831c66d);
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RNDr(S, W, 26, 0xb00327c8);
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RNDr(S, W, 27, 0xbf597fc7);
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RNDr(S, W, 28, 0xc6e00bf3);
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RNDr(S, W, 29, 0xd5a79147);
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RNDr(S, W, 30, 0x06ca6351);
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RNDr(S, W, 31, 0x14292967);
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RNDr(S, W, 32, 0x27b70a85);
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RNDr(S, W, 33, 0x2e1b2138);
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RNDr(S, W, 34, 0x4d2c6dfc);
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RNDr(S, W, 35, 0x53380d13);
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RNDr(S, W, 36, 0x650a7354);
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RNDr(S, W, 37, 0x766a0abb);
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RNDr(S, W, 38, 0x81c2c92e);
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RNDr(S, W, 39, 0x92722c85);
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RNDr(S, W, 40, 0xa2bfe8a1);
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RNDr(S, W, 41, 0xa81a664b);
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RNDr(S, W, 42, 0xc24b8b70);
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RNDr(S, W, 43, 0xc76c51a3);
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RNDr(S, W, 44, 0xd192e819);
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RNDr(S, W, 45, 0xd6990624);
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RNDr(S, W, 46, 0xf40e3585);
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RNDr(S, W, 47, 0x106aa070);
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RNDr(S, W, 48, 0x19a4c116);
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RNDr(S, W, 49, 0x1e376c08);
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RNDr(S, W, 50, 0x2748774c);
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RNDr(S, W, 51, 0x34b0bcb5);
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RNDr(S, W, 52, 0x391c0cb3);
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RNDr(S, W, 53, 0x4ed8aa4a);
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RNDr(S, W, 54, 0x5b9cca4f);
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RNDr(S, W, 55, 0x682e6ff3);
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RNDr(S, W, 56, 0x748f82ee);
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RNDr(S, W, 57, 0x78a5636f);
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RNDr(S, W, 58, 0x84c87814);
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RNDr(S, W, 59, 0x8cc70208);
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RNDr(S, W, 60, 0x90befffa);
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RNDr(S, W, 61, 0xa4506ceb);
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RNDr(S, W, 62, 0xbef9a3f7);
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RNDr(S, W, 63, 0xc67178f2);
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for (i = 0; i < 8; i++) {
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state[i] += S[i];
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}
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sodium_memzero((void *) W, sizeof W);
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sodium_memzero((void *) S, sizeof S);
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sodium_memzero((void *) &t0, sizeof t0);
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sodium_memzero((void *) &t1, sizeof t1);
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}
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static unsigned char PAD[64] = {
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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static void
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SHA256_Pad(crypto_hash_sha256_state *state)
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{
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unsigned char len[8];
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uint32_t r, plen;
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be32enc_vect(len, state->count, 8);
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r = (state->count[1] >> 3) & 0x3f;
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plen = (r < 56) ? (56 - r) : (120 - r);
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crypto_hash_sha256_update(state, PAD, (unsigned long long) plen);
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crypto_hash_sha256_update(state, len, 8);
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}
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int
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crypto_hash_sha256_init(crypto_hash_sha256_state *state)
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{
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state->count[0] = state->count[1] = 0;
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state->state[0] = 0x6A09E667;
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state->state[1] = 0xBB67AE85;
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state->state[2] = 0x3C6EF372;
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state->state[3] = 0xA54FF53A;
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state->state[4] = 0x510E527F;
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state->state[5] = 0x9B05688C;
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state->state[6] = 0x1F83D9AB;
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state->state[7] = 0x5BE0CD19;
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return 0;
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}
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int
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crypto_hash_sha256_update(crypto_hash_sha256_state *state,
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const unsigned char *in,
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unsigned long long inlen)
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{
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uint32_t bitlen[2];
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uint32_t r;
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r = (state->count[1] >> 3) & 0x3f;
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bitlen[1] = ((uint32_t)inlen) << 3;
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bitlen[0] = (uint32_t)(inlen >> 29);
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if ((state->count[1] += bitlen[1]) < bitlen[1]) {
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state->count[0]++;
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}
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state->count[0] += bitlen[0];
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if (inlen < 64 - r) {
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memcpy(&state->buf[r], in, inlen);
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return 0;
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}
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memcpy(&state->buf[r], in, 64 - r);
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SHA256_Transform(state->state, state->buf);
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in += 64 - r;
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inlen -= 64 - r;
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while (inlen >= 64) {
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SHA256_Transform(state->state, in);
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in += 64;
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inlen -= 64;
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}
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memcpy(state->buf, in, inlen);
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return 0;
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}
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int
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crypto_hash_sha256_final(crypto_hash_sha256_state *state,
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unsigned char *out)
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{
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SHA256_Pad(state);
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be32enc_vect(out, state->state, 32);
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sodium_memzero((void *) state, sizeof *state);
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return 0;
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}
|
||||
|
||||
int
|
||||
crypto_hash(unsigned char *out, const unsigned char *in,
|
||||
unsigned long long inlen)
|
||||
{
|
||||
crypto_hash_sha256_state state;
|
||||
|
||||
crypto_hash_sha256_init(&state);
|
||||
crypto_hash_sha256_update(&state, in, inlen);
|
||||
crypto_hash_sha256_final(&state, out);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -1,115 +0,0 @@
|
|||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
#ifdef VANILLA_NACL /* toxcore only uses this when libsodium is unavailable */
|
||||
|
||||
/*-
|
||||
* Copyright 2005,2007,2009 Colin Percival
|
||||
* 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.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
||||
*
|
||||
*/
|
||||
|
||||
//#include "api.h"
|
||||
#include "crypto_auth_hmacsha256.h"
|
||||
#include "crypto_hash_sha256.h"
|
||||
#include "utils.h"
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
|
||||
int
|
||||
crypto_auth_hmacsha256_init(crypto_auth_hmacsha256_state *state,
|
||||
const unsigned char *key,
|
||||
size_t keylen)
|
||||
{
|
||||
unsigned char pad[64];
|
||||
unsigned char khash[32];
|
||||
size_t i;
|
||||
|
||||
if (keylen > 64) {
|
||||
crypto_hash_sha256_init(&state->ictx);
|
||||
crypto_hash_sha256_update(&state->ictx, key, keylen);
|
||||
crypto_hash_sha256_final(&state->ictx, khash);
|
||||
key = khash;
|
||||
keylen = 32;
|
||||
}
|
||||
crypto_hash_sha256_init(&state->ictx);
|
||||
memset(pad, 0x36, 64);
|
||||
for (i = 0; i < keylen; i++) {
|
||||
pad[i] ^= key[i];
|
||||
}
|
||||
crypto_hash_sha256_update(&state->ictx, pad, 64);
|
||||
|
||||
crypto_hash_sha256_init(&state->octx);
|
||||
memset(pad, 0x5c, 64);
|
||||
for (i = 0; i < keylen; i++) {
|
||||
pad[i] ^= key[i];
|
||||
}
|
||||
crypto_hash_sha256_update(&state->octx, pad, 64);
|
||||
|
||||
sodium_memzero((void *) khash, sizeof khash);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
crypto_auth_hmacsha256_update(crypto_auth_hmacsha256_state *state,
|
||||
const unsigned char *in,
|
||||
unsigned long long inlen)
|
||||
{
|
||||
crypto_hash_sha256_update(&state->ictx, in, inlen);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
crypto_auth_hmacsha256_final(crypto_auth_hmacsha256_state *state,
|
||||
unsigned char *out)
|
||||
{
|
||||
unsigned char ihash[32];
|
||||
|
||||
crypto_hash_sha256_final(&state->ictx, ihash);
|
||||
crypto_hash_sha256_update(&state->octx, ihash, 32);
|
||||
crypto_hash_sha256_final(&state->octx, out);
|
||||
|
||||
sodium_memzero((void *) ihash, sizeof ihash);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
crypto_auth(unsigned char *out, const unsigned char *in,
|
||||
unsigned long long inlen, const unsigned char *k)
|
||||
{
|
||||
crypto_auth_hmacsha256_state state;
|
||||
|
||||
crypto_auth_hmacsha256_init(&state, k, crypto_auth_hmacsha256_KEYBYTES);
|
||||
crypto_auth_hmacsha256_update(&state, in, inlen);
|
||||
crypto_auth_hmacsha256_final(&state, out);
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
|
@ -35,7 +35,9 @@
|
|||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "crypto_auth_hmacsha256.h"
|
||||
#include <crypto_hash_sha256.h>
|
||||
#include <crypto_auth_hmacsha256.h>
|
||||
|
||||
#include "pbkdf2-sha256.h"
|
||||
#include "sysendian.h"
|
||||
#include "utils.h"
|
||||
|
|
@ -49,30 +51,34 @@ void
|
|||
PBKDF2_SHA256(const uint8_t * passwd, size_t passwdlen, const uint8_t * salt,
|
||||
size_t saltlen, uint64_t c, uint8_t * buf, size_t dkLen)
|
||||
{
|
||||
crypto_auth_hmacsha256_state PShctx, hctx;
|
||||
uint8_t key[32] = {0};
|
||||
size_t i;
|
||||
uint8_t ivec[4];
|
||||
uint8_t salt_and_ivec[saltlen + 4];
|
||||
uint8_t U[32];
|
||||
uint8_t T[32];
|
||||
uint64_t j;
|
||||
int k;
|
||||
size_t clen;
|
||||
|
||||
crypto_auth_hmacsha256_init(&PShctx, passwd, passwdlen);
|
||||
crypto_auth_hmacsha256_update(&PShctx, salt, saltlen);
|
||||
if (passwdlen > 32) {
|
||||
/* For some reason libsodium allows 64byte keys meaning keys
|
||||
* between 32byte and 64bytes are not compatible with libsodium.
|
||||
toxencryptsave should only give 32byte passwds so this isn't an issue here.*/
|
||||
crypto_hash_sha256(key, passwd, passwdlen);
|
||||
} else {
|
||||
memcpy(key, passwd, passwdlen);
|
||||
}
|
||||
|
||||
memcpy(salt_and_ivec, salt, saltlen);
|
||||
|
||||
for (i = 0; i * 32 < dkLen; i++) {
|
||||
be32enc(ivec, (uint32_t)(i + 1));
|
||||
memcpy(&hctx, &PShctx, sizeof(crypto_auth_hmacsha256_state));
|
||||
crypto_auth_hmacsha256_update(&hctx, ivec, 4);
|
||||
crypto_auth_hmacsha256_final(&hctx, U);
|
||||
be32enc(salt_and_ivec + saltlen, (uint32_t)(i + 1));
|
||||
crypto_auth_hmacsha256(U, salt_and_ivec, sizeof(salt_and_ivec), key);
|
||||
|
||||
memcpy(T, U, 32);
|
||||
|
||||
for (j = 2; j <= c; j++) {
|
||||
crypto_auth_hmacsha256_init(&hctx, passwd, passwdlen);
|
||||
crypto_auth_hmacsha256_update(&hctx, U, 32);
|
||||
crypto_auth_hmacsha256_final(&hctx, U);
|
||||
crypto_auth_hmacsha256(U, U, 32, key);
|
||||
|
||||
for (k = 0; k < 32; k++) {
|
||||
T[k] ^= U[k];
|
||||
|
|
@ -85,7 +91,7 @@ PBKDF2_SHA256(const uint8_t * passwd, size_t passwdlen, const uint8_t * salt,
|
|||
}
|
||||
memcpy(&buf[i * 32], T, clen);
|
||||
}
|
||||
sodium_memzero((void *) &PShctx, sizeof PShctx);
|
||||
sodium_memzero((void *) key, sizeof(key));
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -31,6 +31,7 @@
|
|||
#ifdef VANILLA_NACL
|
||||
#include "crypto_pwhash_scryptsalsa208sha256/crypto_pwhash_scryptsalsa208sha256.h"
|
||||
#include "crypto_pwhash_scryptsalsa208sha256/utils.h" /* sodium_memzero */
|
||||
#include <crypto_hash_sha256.h>
|
||||
#endif
|
||||
|
||||
/* This "module" provides functions analogous to tox_load and tox_save in toxcore
|
||||
|
|
@ -57,6 +58,8 @@ int tox_encrypted_save(const Tox *tox, uint8_t *data, uint8_t *passphrase, uint3
|
|||
if (pplength == 0)
|
||||
return -1;
|
||||
|
||||
uint8_t passkey[crypto_hash_sha256_BYTES];
|
||||
crypto_hash_sha256(passkey, passphrase, pplength);
|
||||
/* First derive a key from the password */
|
||||
/* http://doc.libsodium.org/key_derivation/README.html */
|
||||
/* note that, according to the documentation, a generic pwhash interface will be created
|
||||
|
|
@ -66,16 +69,14 @@ int tox_encrypted_save(const Tox *tox, uint8_t *data, uint8_t *passphrase, uint3
|
|||
randombytes(salt, sizeof salt);
|
||||
|
||||
if (crypto_pwhash_scryptsalsa208sha256(
|
||||
key, sizeof(key), passphrase, pplength, salt,
|
||||
key, sizeof(key), passkey, sizeof(passkey), salt,
|
||||
crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE * 2, /* slightly stronger */
|
||||
crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVE) != 0) {
|
||||
/* out of memory most likely */
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* calling sodium_memzero segfaults, but printing passphrase works, so... libsodium bug?
|
||||
* ...eh, it's not segfaulting anywhere else, so I'll assume pebkac...
|
||||
sodium_memzero(passphrase, pplength); /* wipe plaintext pw */
|
||||
sodium_memzero(passkey, crypto_hash_sha256_BYTES); /* wipe plaintext pw */
|
||||
|
||||
/* next get plain save data */
|
||||
uint32_t temp_size = tox_size(tox);
|
||||
|
|
@ -131,6 +132,9 @@ int tox_encrypted_load(Tox *tox, const uint8_t *data, uint32_t length, uint8_t *
|
|||
uint8_t salt[crypto_pwhash_scryptsalsa208sha256_SALTBYTES];
|
||||
uint8_t nonce[crypto_box_NONCEBYTES];
|
||||
|
||||
uint8_t passkey[crypto_hash_sha256_BYTES];
|
||||
crypto_hash_sha256(passkey, passphrase, pplength);
|
||||
|
||||
memcpy(salt, data, crypto_pwhash_scryptsalsa208sha256_SALTBYTES);
|
||||
data += crypto_pwhash_scryptsalsa208sha256_SALTBYTES;
|
||||
memcpy(nonce, data, crypto_box_NONCEBYTES);
|
||||
|
|
@ -140,14 +144,14 @@ int tox_encrypted_load(Tox *tox, const uint8_t *data, uint32_t length, uint8_t *
|
|||
uint8_t key[crypto_box_KEYBYTES];
|
||||
|
||||
if (crypto_pwhash_scryptsalsa208sha256(
|
||||
key, sizeof(key), passphrase, pplength, salt,
|
||||
key, sizeof(key), passkey, sizeof(passkey), salt,
|
||||
crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE * 2, /* slightly stronger */
|
||||
crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVE) != 0) {
|
||||
/* out of memory most likely */
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* sodium_memzero(passphrase, pplength); /* wipe plaintext pw */
|
||||
sodium_memzero(passkey, crypto_hash_sha256_BYTES); /* wipe plaintext pw */
|
||||
|
||||
/* decrypt the data */
|
||||
uint8_t temp_data[decrypt_length];
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user