1 /* $OpenBSD: xform.c,v 1.16 2001/08/28 12:20:43 ben Exp $ */ 2 /*- 3 * The authors of this code are John Ioannidis (ji@tla.org), 4 * Angelos D. Keromytis (kermit@csd.uch.gr), 5 * Niels Provos (provos@physnet.uni-hamburg.de) and 6 * Damien Miller (djm@mindrot.org). 7 * 8 * This code was written by John Ioannidis for BSD/OS in Athens, Greece, 9 * in November 1995. 10 * 11 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, 12 * by Angelos D. Keromytis. 13 * 14 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis 15 * and Niels Provos. 16 * 17 * Additional features in 1999 by Angelos D. Keromytis. 18 * 19 * AES XTS implementation in 2008 by Damien Miller 20 * 21 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis, 22 * Angelos D. Keromytis and Niels Provos. 23 * 24 * Copyright (C) 2001, Angelos D. Keromytis. 25 * 26 * Copyright (C) 2008, Damien Miller 27 * Copyright (c) 2014 The FreeBSD Foundation 28 * All rights reserved. 29 * 30 * Portions of this software were developed by John-Mark Gurney 31 * under sponsorship of the FreeBSD Foundation and 32 * Rubicon Communications, LLC (Netgate). 33 * 34 * Permission to use, copy, and modify this software with or without fee 35 * is hereby granted, provided that this entire notice is included in 36 * all copies of any software which is or includes a copy or 37 * modification of this software. 38 * You may use this code under the GNU public license if you so wish. Please 39 * contribute changes back to the authors under this freer than GPL license 40 * so that we may further the use of strong encryption without limitations to 41 * all. 42 * 43 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR 44 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY 45 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE 46 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR 47 * PURPOSE. 48 */ 49 50 #include <sys/cdefs.h> 51 __FBSDID("$FreeBSD$"); 52 53 #include <crypto/sha2/sha256.h> 54 #include <crypto/sha2/sha384.h> 55 #include <crypto/sha2/sha512.h> 56 #include <opencrypto/xform_auth.h> 57 58 static int SHA256Update_int(void *, const u_int8_t *, u_int16_t); 59 static int SHA384Update_int(void *, const u_int8_t *, u_int16_t); 60 static int SHA512Update_int(void *, const u_int8_t *, u_int16_t); 61 62 /* Authentication instances */ 63 struct auth_hash auth_hash_hmac_sha2_256 = { 64 CRYPTO_SHA2_256_HMAC, "HMAC-SHA2-256", 65 SHA2_256_HMAC_KEY_LEN, SHA2_256_HASH_LEN, sizeof(SHA256_CTX), 66 SHA2_256_HMAC_BLOCK_LEN, 67 (void (*)(void *)) SHA256_Init, NULL, NULL, SHA256Update_int, 68 (void (*)(u_int8_t *, void *)) SHA256_Final 69 }; 70 71 struct auth_hash auth_hash_hmac_sha2_384 = { 72 CRYPTO_SHA2_384_HMAC, "HMAC-SHA2-384", 73 SHA2_384_HMAC_KEY_LEN, SHA2_384_HASH_LEN, sizeof(SHA384_CTX), 74 SHA2_384_HMAC_BLOCK_LEN, 75 (void (*)(void *)) SHA384_Init, NULL, NULL, SHA384Update_int, 76 (void (*)(u_int8_t *, void *)) SHA384_Final 77 }; 78 79 struct auth_hash auth_hash_hmac_sha2_512 = { 80 CRYPTO_SHA2_512_HMAC, "HMAC-SHA2-512", 81 SHA2_512_HMAC_KEY_LEN, SHA2_512_HASH_LEN, sizeof(SHA512_CTX), 82 SHA2_512_HMAC_BLOCK_LEN, 83 (void (*)(void *)) SHA512_Init, NULL, NULL, SHA512Update_int, 84 (void (*)(u_int8_t *, void *)) SHA512_Final 85 }; 86 87 /* 88 * And now for auth. 89 */ 90 static int 91 SHA256Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 92 { 93 SHA256_Update(ctx, buf, len); 94 return 0; 95 } 96 97 static int 98 SHA384Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 99 { 100 SHA384_Update(ctx, buf, len); 101 return 0; 102 } 103 104 static int 105 SHA512Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 106 { 107 SHA512_Update(ctx, buf, len); 108 return 0; 109 } 110