627 lines
14 KiB
C
627 lines
14 KiB
C
/* bmw_large.c */
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/*
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This file is part of the ARM-Crypto-Lib.
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Copyright (C) 2006-2010 Daniel Otte (daniel.otte@rub.de)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* \file bmw_large.c
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* \author Daniel Otte
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* \email daniel.otte@rub.de
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* \date 2009-04-27
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* \license GPLv3 or later
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*
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*/
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#include <stdint.h>
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#include <string.h>
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#include "bmw_large.h"
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#define SHL64(a,n) shiftl64(a,n)
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#define SHR64(a,n) shiftr64(a,n)
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#define ROTL64(a,n) rotl64(a,n)
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#define ROTR64(a,n) rotr64(a,n)
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#define TWEAK 1
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#define BUG24 0
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#define F0_HACK 2
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#define DEBUG 0
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#if DEBUG
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#include "cli.h"
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void ctx_dump(const bmw_large_ctx_t* ctx){
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uint8_t i;
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cli_putstr("\r\n==== ctx dump ====");
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for(i=0; i<16;++i){
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cli_putstr("\r\n h[");
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cli_hexdump(&i, 1);
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cli_putstr("] = ");
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cli_hexdump_rev(&(ctx->h[i]), 8);
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}
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cli_putstr("\r\n counter = ");
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cli_hexdump(&(ctx->counter), 4);
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}
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void dump_x(const uint64_t* q, uint8_t elements, char x){
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uint8_t i;
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cli_putstr("\r\n==== ");
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cli_putc(x);
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cli_putstr(" dump ====");
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for(i=0; i<elements;++i){
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cli_putstr("\r\n ");
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cli_putc(x);
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cli_putstr("[");
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cli_hexdump(&i, 1);
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cli_putstr("] = ");
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cli_hexdump_rev(&(q[i]), 8);
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}
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}
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#else
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#define ctx_dump(x)
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#define dump_x(a,b,c)
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#endif
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static
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uint64_t rotl64(uint64_t a, uint8_t r){
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return (a<<r)|(a>>(64-r));
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}
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static
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uint64_t rotr64(uint64_t a, uint8_t r){
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return (a>>r)|(a<<(64-r));
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}
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static
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uint64_t shiftl64(uint64_t a, uint8_t r){
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return (a<<r);
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}
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static
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uint64_t shiftr64(uint64_t a, uint8_t r){
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return (a>>r);
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}
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static
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uint64_t bmw_large_s0(uint64_t x){
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uint64_t r;
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r = SHR64(x, 1)
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^ SHL64(x, 3)
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^ ROTL64(x, 4)
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^ ROTR64(x, 64-37);
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return r;
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}
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static
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uint64_t bmw_large_s1(uint64_t x){
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uint64_t r;
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r = SHR64(x, 1)
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^ SHL64(x, 2)
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^ ROTL64(x,13)
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^ ROTR64(x,64-43);
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return r;
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}
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static
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uint64_t bmw_large_s2(uint64_t x){
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uint64_t r;
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r = SHR64(x, 2)
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^ SHL64(x, 1)
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^ ROTL64(x, 19)
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^ ROTR64(x, 64-53);
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return r;
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}
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static
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uint64_t bmw_large_s3(uint64_t x){
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uint64_t r;
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r = SHR64(x, 2)
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^ SHL64(x, 2)
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^ ROTL64(x, 28)
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^ ROTR64(x, 64-59);
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return r;
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}
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static
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uint64_t bmw_large_s4(uint64_t x){
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uint64_t r;
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r = SHR64(x, 1)
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^ x;
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return r;
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}
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static
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uint64_t bmw_large_s5(uint64_t x){
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uint64_t r;
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r = SHR64(x, 2)
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^ x;
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return r;
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}
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static
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uint64_t bmw_large_r1(uint64_t x){
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uint64_t r;
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r = ROTL64(x, 5);
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return r;
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}
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static
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uint64_t bmw_large_r2(uint64_t x){
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uint64_t r;
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r = ROTL64(x, 11);
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return r;
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}
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static
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uint64_t bmw_large_r3(uint64_t x){
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uint64_t r;
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r = ROTL64(x, 27);
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return r;
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}
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static
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uint64_t bmw_large_r4(uint64_t x){
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uint64_t r;
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r = ROTL64(x, 32);
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return r;
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}
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static
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uint64_t bmw_large_r5(uint64_t x){
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uint64_t r;
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r = ROTR64(x, 64-37);
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return r;
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}
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static
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uint64_t bmw_large_r6(uint64_t x){
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uint64_t r;
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r = ROTR64(x, 64-43);
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return r;
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}
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static
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uint64_t bmw_large_r7(uint64_t x){
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uint64_t r;
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r = ROTR64(x, 64-53);
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return r;
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}
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/*
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#define K 0x0555555555555555LL
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#define MASK 0xFFFFFFFFFFFFFFFFLL
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static
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uint64_t k_lut[] PROGMEM = {
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16LL*K, 17LL*K, 18LL*K, 19LL*K,
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20LL*K, 21LL*K, 22LL*K, 23LL*K,
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24LL*K, 25LL*K, 26LL*K, 27LL*K,
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28LL*K, 29LL*K, 30LL*K, 31LL*K };
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*/
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/* the same as above but precomputed to avoid compiler warnings */
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static const
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uint64_t k_lut[] = {
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0x5555555555555550LL, 0x5aaaaaaaaaaaaaa5LL, 0x5ffffffffffffffaLL,
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0x655555555555554fLL, 0x6aaaaaaaaaaaaaa4LL, 0x6ffffffffffffff9LL,
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0x755555555555554eLL, 0x7aaaaaaaaaaaaaa3LL, 0x7ffffffffffffff8LL,
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0x855555555555554dLL, 0x8aaaaaaaaaaaaaa2LL, 0x8ffffffffffffff7LL,
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0x955555555555554cLL, 0x9aaaaaaaaaaaaaa1LL, 0x9ffffffffffffff6LL,
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0xa55555555555554bLL };
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static
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uint64_t bmw_large_expand1(uint8_t j, const uint64_t* q, const void* m, const void* h){
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uint64_t(*s[])(uint64_t) = {bmw_large_s1, bmw_large_s2, bmw_large_s3, bmw_large_s0};
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uint64_t a = 0;
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union{
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uint64_t v64;
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uint32_t v32[2];
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} r;
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uint8_t i;
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/* r = 0x0555555555555555LL*(j+16); */
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r.v64 = k_lut[j];
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for(i=0; i<16; ++i){
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a += s[i%4](q[j+i]);
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}
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#if TWEAK
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a += ( ROTL64(((uint64_t*)m)[(j)&0xf], ((j+ 0)&0xf)+1)
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+ ROTL64(((uint64_t*)m)[(j+3)&0xf], ((j+ 3)&0xf)+1)
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+ r.v64
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- ROTL64(((uint64_t*)m)[(j+10)&0xf],((j+10)&0xf)+1)
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) ^ ((uint64_t*)h)[(j+7)&0xf];
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#else
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a += ((uint64_t*)m)[j&0xf];
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a += ((uint64_t*)m)[(j+3)&0xf];
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a -= ((uint64_t*)m)[(j+10)&0xf];
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a += r.v64;
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#endif
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return a;
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}
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static
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uint64_t bmw_large_expand2(uint8_t j, const uint64_t* q, const void* m, const void* h){
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uint64_t(*rf[])(uint64_t) = {bmw_large_r1, bmw_large_r2, bmw_large_r3,
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bmw_large_r4, bmw_large_r5, bmw_large_r6,
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bmw_large_r7};
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uint64_t a=0;
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union{
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uint64_t v64;
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uint32_t v32[2];
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} r;
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uint8_t i;
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/* r = 0x0555555555555555LL*(j+16); */
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r.v64 = k_lut[j];
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for(i=0; i<14; i+=2){
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a += q[j+i];
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}
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for(i=0; i<14; i+=2){
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a += rf[i/2](q[j+i+1]);
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}
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#if TWEAK
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a += bmw_large_s4(q[j+14]);
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a += bmw_large_s5(q[j+15]);
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#else
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a += bmw_large_s5(q[j+14]);
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a += bmw_large_s4(q[j+15]);
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#endif
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#if TWEAK
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/*
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if(j==(22-16)){
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uint64_t t;
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cli_putstr("\n+++++++++ expand_2 ++++++++++++");
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dump_x(&a, 1, 'a');
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dump_x(&r, 1, 'r');
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t=ROTL64(((uint64_t*)m)[j], ((j+ 0)&0xf)+1);
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dump_x(&t, 1, '0');
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t=ROTL64(((uint64_t*)m)[j], ((j+ 3)&0xf)+1);
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dump_x(&t, 1, '0');
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t=ROTL64(((uint64_t*)m)[j], ((j+ 0)&0xf)+1);
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dump_x(&t, 1, '0');
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}
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*/
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a += ( ROTL64(((uint64_t*)m)[(j)&0xf], ((j+ 0)&0xf)+1)
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+ ROTL64(((uint64_t*)m)[(j+3)&0xf], ((j+ 3)&0xf)+1)
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+ r.v64
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- ROTL64(((uint64_t*)m)[(j+10)&0xf],((j+10)&0xf)+1)
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) ^ ((uint64_t*)h)[(j+7)&0xf];
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#else
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a += ((uint64_t*)m)[j&0xf];
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a += ((uint64_t*)m)[(j+3)&0xf];
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a -= ((uint64_t*)m)[(j+10)&0xf];
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a += r.v64;
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#endif
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return a;
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}
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#if F0_HACK==2
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/* to understand this implementation take a look at f0-opt-table.txt */
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static uint16_t hack_table[5] = { 0x0311, 0xDDB3, 0x2A79, 0x07AA, 0x51C2 };
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static uint8_t offset_table[5] = { 4+16, 6+16, 9+16, 12+16, 13+16 };
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static
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void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
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uint16_t hack_reg;
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uint8_t i,j,c;
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uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
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bmw_large_s3, bmw_large_s4 };
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for(i=0; i<16; ++i){
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((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
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}
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dump_x(h, 16, 'T');
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memset(q, 0, 8*16);
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c=4;
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do{
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i=15;
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j = offset_table[c];
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hack_reg = hack_table[c];
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do{
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if(hack_reg&1){
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q[i]-= h[j&15];
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}else{
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q[i]+= h[j&15];
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}
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--j;
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hack_reg>>= 1;
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}while(i--!=0);
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}while(c--!=0);
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dump_x(q, 16, 'W');
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for(i=0; i<16; ++i){
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q[i] = s[i%5](q[i]);
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}
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#if TWEAK
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for(i=0; i<16; ++i){
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((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
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}
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for(i=0; i<16; ++i){
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q[i] += h[(i+1)&0xf];
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}
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#endif /* TWEAK */
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}
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#endif /* F0_HACK==2 */
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#if F0_HACK==1
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static
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uint8_t f0_lut[] PROGMEM ={
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5<<1, ( 7<<1)+1, (10<<1)+0, (13<<1)+0, (14<<1)+0,
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6<<1, ( 8<<1)+1, (11<<1)+0, (14<<1)+0, (15<<1)+1,
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0<<1, ( 7<<1)+0, ( 9<<1)+0, (12<<1)+1, (15<<1)+0,
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0<<1, ( 1<<1)+1, ( 8<<1)+0, (10<<1)+1, (13<<1)+0,
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1<<1, ( 2<<1)+0, ( 9<<1)+0, (11<<1)+1, (14<<1)+1,
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3<<1, ( 2<<1)+1, (10<<1)+0, (12<<1)+1, (15<<1)+0,
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4<<1, ( 0<<1)+1, ( 3<<1)+1, (11<<1)+1, (13<<1)+0,
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1<<1, ( 4<<1)+1, ( 5<<1)+1, (12<<1)+1, (14<<1)+1,
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2<<1, ( 5<<1)+1, ( 6<<1)+1, (13<<1)+0, (15<<1)+1,
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0<<1, ( 3<<1)+1, ( 6<<1)+0, ( 7<<1)+1, (14<<1)+0,
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8<<1, ( 1<<1)+1, ( 4<<1)+1, ( 7<<1)+1, (15<<1)+0,
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8<<1, ( 0<<1)+1, ( 2<<1)+1, ( 5<<1)+1, ( 9<<1)+0,
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1<<1, ( 3<<1)+0, ( 6<<1)+1, ( 9<<1)+1, (10<<1)+0,
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2<<1, ( 4<<1)+0, ( 7<<1)+0, (10<<1)+0, (11<<1)+0,
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3<<1, ( 5<<1)+1, ( 8<<1)+0, (11<<1)+1, (12<<1)+1,
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12<<1, ( 4<<1)+1, ( 6<<1)+1, ( 9<<1)+1, (13<<1)+0
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};
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static
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void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
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uint8_t i,j=-1,v,sign,l=0;
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uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
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bmw_large_s3, bmw_large_s4 };
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for(i=0; i<16; ++i){
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((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
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}
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dump_x(h, 16, 'T');
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// memset(q, 0, 4*16);
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for(i=0; i<5*16; ++i){
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v = pgm_read_byte(f0_lut+i);
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sign = v&1;
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v >>=1;
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if(i==l){
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j++;
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l+=5;
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q[j] = h[v];
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continue;
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}
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if(sign){
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q[j] -= h[v];
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}else{
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q[j] += h[v];
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}
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}
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dump_x(q, 16, 'W');
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for(i=0; i<16; ++i){
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q[i] = s[i%5](q[i]);
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}
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#if TWEAK
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for(i=0; i<16; ++i){
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((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
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}
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for(i=0; i<16; ++i){
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q[i] += h[(i+1)&0xf];
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}
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#endif /* TWEAK */
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}
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#endif /* F0_HACK==1 */
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#if F0_HACK==0
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static
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void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
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uint8_t i;
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uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
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bmw_large_s3, bmw_large_s4 };
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for(i=0; i<16; ++i){
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((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
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}
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// dump_x(t, 16, 'T');
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q[ 0] = (h[ 5] - h[ 7] + h[10] + h[13] + h[14]);
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q[ 1] = (h[ 6] - h[ 8] + h[11] + h[14] - h[15]);
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q[ 2] = (h[ 0] + h[ 7] + h[ 9] - h[12] + h[15]);
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q[ 3] = (h[ 0] - h[ 1] + h[ 8] - h[10] + h[13]);
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q[ 4] = (h[ 1] + h[ 2] + h[ 9] - h[11] - h[14]);
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q[ 5] = (h[ 3] - h[ 2] + h[10] - h[12] + h[15]);
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q[ 6] = (h[ 4] - h[ 0] - h[ 3] - h[11] + h[13]);
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q[ 7] = (h[ 1] - h[ 4] - h[ 5] - h[12] - h[14]);
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q[ 8] = (h[ 2] - h[ 5] - h[ 6] + h[13] - h[15]);
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q[ 9] = (h[ 0] - h[ 3] + h[ 6] - h[ 7] + h[14]);
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q[10] = (h[ 8] - h[ 1] - h[ 4] - h[ 7] + h[15]);
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q[11] = (h[ 8] - h[ 0] - h[ 2] - h[ 5] + h[ 9]);
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q[12] = (h[ 1] + h[ 3] - h[ 6] - h[ 9] + h[10]);
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q[13] = (h[ 2] + h[ 4] + h[ 7] + h[10] + h[11]);
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q[14] = (h[ 3] - h[ 5] + h[ 8] - h[11] - h[12]);
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q[15] = (h[12] - h[ 4] - h[ 6] - h[ 9] + h[13]);
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dump_x(q, 16, 'W');
|
|
for(i=0; i<16; ++i){
|
|
q[i] = s[i%5](q[i]);
|
|
}
|
|
#if TWEAK
|
|
for(i=0; i<16; ++i){
|
|
((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
|
|
}
|
|
for(i=0; i<16; ++i){
|
|
q[i] += h[(i+1)&0xf];
|
|
}
|
|
#endif /* TWEAK */
|
|
|
|
}
|
|
#endif /* F0_HACK==0 */
|
|
|
|
static
|
|
void bmw_large_f1(uint64_t* q, const void* m, const uint64_t* h){
|
|
uint8_t i;
|
|
q[16] = bmw_large_expand1(0, q, m, h);
|
|
q[17] = bmw_large_expand1(1, q, m, h);
|
|
for(i=2; i<16; ++i){
|
|
q[16+i] = bmw_large_expand2(i, q, m, h);
|
|
}
|
|
}
|
|
|
|
static
|
|
void bmw_large_f2(uint64_t* h, const uint64_t* q, const void* m){
|
|
uint64_t xl=0, xh;
|
|
uint8_t i;
|
|
for(i=16;i<24;++i){
|
|
xl ^= q[i];
|
|
}
|
|
xh = xl;
|
|
for(i=24;i<32;++i){
|
|
xh ^= q[i];
|
|
}
|
|
#if DEBUG
|
|
cli_putstr("\r\n XL = ");
|
|
cli_hexdump_rev(&xl, 4);
|
|
cli_putstr("\r\n XH = ");
|
|
cli_hexdump_rev(&xh, 4);
|
|
#endif
|
|
memcpy(h, m, 16*8);
|
|
h[0] ^= SHL64(xh, 5) ^ SHR64(q[16], 5);
|
|
h[1] ^= SHR64(xh, 7) ^ SHL64(q[17], 8);
|
|
h[2] ^= SHR64(xh, 5) ^ SHL64(q[18], 5);
|
|
h[3] ^= SHR64(xh, 1) ^ SHL64(q[19], 5);
|
|
h[4] ^= SHR64(xh, 3) ^ q[20];
|
|
h[5] ^= SHL64(xh, 6) ^ SHR64(q[21], 6);
|
|
h[6] ^= SHR64(xh, 4) ^ SHL64(q[22], 6);
|
|
h[7] ^= SHR64(xh,11) ^ SHL64(q[23], 2);
|
|
for(i=0; i<8; ++i){
|
|
h[i] += xl ^ q[24+i] ^ q[i];
|
|
}
|
|
for(i=0; i<8; ++i){
|
|
h[8+i] ^= xh ^ q[24+i];
|
|
h[8+i] += ROTL64(h[(4+i)%8],i+9);
|
|
}
|
|
h[ 8] += SHL64(xl, 8) ^ q[23] ^ q[ 8];
|
|
h[ 9] += SHR64(xl, 6) ^ q[16] ^ q[ 9];
|
|
h[10] += SHL64(xl, 6) ^ q[17] ^ q[10];
|
|
h[11] += SHL64(xl, 4) ^ q[18] ^ q[11];
|
|
h[12] += SHR64(xl, 3) ^ q[19] ^ q[12];
|
|
h[13] += SHR64(xl, 4) ^ q[20] ^ q[13];
|
|
h[14] += SHR64(xl, 7) ^ q[21] ^ q[14];
|
|
h[15] += SHR64(xl, 2) ^ q[22] ^ q[15];
|
|
}
|
|
|
|
void bmw_large_nextBlock(bmw_large_ctx_t* ctx, const void* block){
|
|
uint64_t q[32];
|
|
dump_x(block, 16, 'M');
|
|
bmw_large_f0(q, ctx->h, block);
|
|
dump_x(q, 16, 'Q');
|
|
bmw_large_f1(q, block, ctx->h);
|
|
dump_x(q, 32, 'Q');
|
|
bmw_large_f2(ctx->h, q, block);
|
|
ctx->counter += 1;
|
|
ctx_dump(ctx);
|
|
}
|
|
|
|
void bmw_large_lastBlock(bmw_large_ctx_t* ctx, const void* block, uint16_t length_b){
|
|
union {
|
|
uint8_t v8[128];
|
|
uint64_t v64[ 16];
|
|
} buffer;
|
|
while(length_b >= BMW_LARGE_BLOCKSIZE){
|
|
bmw_large_nextBlock(ctx, block);
|
|
length_b -= BMW_LARGE_BLOCKSIZE;
|
|
block = (uint8_t*)block + BMW_LARGE_BLOCKSIZE_B;
|
|
}
|
|
memset(buffer.v8, 0, 128);
|
|
memcpy(buffer.v8, block, (length_b+7)/8);
|
|
buffer.v8[length_b>>3] |= 0x80 >> (length_b&0x07);
|
|
if(length_b+1>128*8-64){
|
|
bmw_large_nextBlock(ctx, buffer.v8);
|
|
memset(buffer.v8, 0, 128-8);
|
|
ctx->counter -= 1;
|
|
}
|
|
buffer.v64[15] = (uint64_t)(ctx->counter*1024LL)+(uint64_t)length_b;
|
|
bmw_large_nextBlock(ctx, buffer.v8);
|
|
#if TWEAK
|
|
uint8_t i;
|
|
uint64_t q[32];
|
|
memset(buffer.v8, 0xaa, 128);
|
|
for(i=0; i<16; ++i){
|
|
buffer.v8[8*i] = i + 0xa0;
|
|
}
|
|
bmw_large_f0(q, buffer.v64, ctx->h);
|
|
bmw_large_f1(q, ctx->h, buffer.v64);
|
|
bmw_large_f2(buffer.v64, q, ctx->h);
|
|
memcpy(ctx->h, buffer.v8, 128);
|
|
#endif
|
|
}
|
|
|
|
void bmw384_init(bmw384_ctx_t* ctx){
|
|
uint8_t i;
|
|
ctx->h[0] = 0x0001020304050607LL;
|
|
for(i=1; i<16; ++i){
|
|
ctx->h[i] = ctx->h[i-1]+ 0x0808080808080808LL;
|
|
}
|
|
#if BUG24
|
|
ctx->h[6] = 0x3031323324353637LL;
|
|
#endif
|
|
ctx->counter=0;
|
|
ctx_dump(ctx);
|
|
}
|
|
|
|
void bmw512_init(bmw512_ctx_t* ctx){
|
|
uint8_t i;
|
|
ctx->h[0] = 0x8081828384858687LL;
|
|
for(i=1; i<16; ++i){
|
|
ctx->h[i] = ctx->h[i-1]+ 0x0808080808080808LL;
|
|
}
|
|
ctx->counter=0;
|
|
ctx_dump(ctx);
|
|
}
|
|
|
|
void bmw384_nextBlock(bmw384_ctx_t* ctx, const void* block){
|
|
bmw_large_nextBlock(ctx, block);
|
|
}
|
|
|
|
void bmw512_nextBlock(bmw512_ctx_t* ctx, const void* block){
|
|
bmw_large_nextBlock(ctx, block);
|
|
}
|
|
|
|
void bmw384_lastBlock(bmw384_ctx_t* ctx, const void* block, uint16_t length_b){
|
|
bmw_large_lastBlock(ctx, block, length_b);
|
|
}
|
|
|
|
void bmw512_lastBlock(bmw512_ctx_t* ctx, const void* block, uint16_t length_b){
|
|
bmw_large_lastBlock(ctx, block, length_b);
|
|
}
|
|
|
|
void bmw384_ctx2hash(void* dest, const bmw384_ctx_t* ctx){
|
|
memcpy(dest, &(ctx->h[10]), 384/8);
|
|
}
|
|
|
|
void bmw512_ctx2hash(void* dest, const bmw512_ctx_t* ctx){
|
|
memcpy(dest, &(ctx->h[8]), 512/8);
|
|
}
|
|
|
|
void bmw384(void* dest, const void* msg, uint32_t length_b){
|
|
bmw_large_ctx_t ctx;
|
|
bmw384_init(&ctx);
|
|
while(length_b>=BMW_LARGE_BLOCKSIZE){
|
|
bmw_large_nextBlock(&ctx, msg);
|
|
length_b -= BMW_LARGE_BLOCKSIZE;
|
|
msg = (uint8_t*)msg + BMW_LARGE_BLOCKSIZE_B;
|
|
}
|
|
bmw_large_lastBlock(&ctx, msg, length_b);
|
|
bmw384_ctx2hash(dest, &ctx);
|
|
}
|
|
|
|
void bmw512(void* dest, const void* msg, uint32_t length_b){
|
|
bmw_large_ctx_t ctx;
|
|
bmw512_init(&ctx);
|
|
while(length_b>=BMW_LARGE_BLOCKSIZE){
|
|
bmw_large_nextBlock(&ctx, msg);
|
|
length_b -= BMW_LARGE_BLOCKSIZE;
|
|
msg = (uint8_t*)msg + BMW_LARGE_BLOCKSIZE_B;
|
|
}
|
|
bmw_large_lastBlock(&ctx, msg, length_b);
|
|
bmw512_ctx2hash(dest, &ctx);
|
|
}
|
|
|