1/*- 2 * Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
28__FBSDID("$FreeBSD: head/sys/geom/eli/pkcs5v2.c 293306 2016-01-07 05:47:34Z allanjude $"); |
29 30#include <sys/param.h> 31#ifdef _KERNEL 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#else 35#include <sys/resource.h> 36#include <stdint.h> --- 41 unchanged lines hidden (view full) --- 78 g_eli_crypto_hmac(passphrase, passlen, md, sizeof(md), 79 md, 0); 80 xor(keyp, md, bsize); 81 } 82 } 83} 84 85#ifndef _KERNEL |
86#ifndef _STAND |
87/* 88 * Return the number of microseconds needed for 'interations' iterations. 89 */ 90static int 91pkcs5v2_probe(int iterations) 92{ 93 uint8_t key[G_ELI_USERKEYLEN], salt[G_ELI_SALTLEN]; 94 uint8_t passphrase[] = "passphrase"; --- 21 unchanged lines hidden (view full) --- 116 117 for (iterations = 1; ; iterations <<= 1) { 118 v = pkcs5v2_probe(iterations); 119 if (v > 2000000) 120 break; 121 } 122 return (((intmax_t)iterations * (intmax_t)usecs) / v); 123} |
124#endif /* !_STAND */ |
125#endif /* !_KERNEL */ |