1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SOFTDSA_H 27 #define _SOFTDSA_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #include <sys/types.h> 36 #include <security/pkcs11t.h> 37 #include <bignum.h> 38 #include "softObject.h" 39 #include "softSession.h" 40 41 /* DSA Signature is always 40 bytes */ 42 #define DSA_SIGNATURE_LENGTH 40 43 #define MAX_DSA_KEY_LEN (1024 >> 3) 44 #define MIN_DSA_KEY_LEN (512 >> 3) 45 46 #define DSA_SUBPRIME_BITS 160 47 #define DSA_SUBPRIME_BYTES (DSA_SUBPRIME_BITS >> 3) 48 49 typedef struct soft_dsa_ctx { 50 soft_object_t *key; 51 } soft_dsa_ctx_t; 52 53 typedef struct { 54 int size; /* key size in bits */ 55 BIGNUM q; /* q (160-bit prime) */ 56 BIGNUM p; /* p (<size-bit> prime) */ 57 BIGNUM g; /* g (the base) */ 58 BIGNUM x; /* private key (< q) */ 59 BIGNUM y; /* = g^x mod p */ 60 BIGNUM k; /* k (random number < q) */ 61 BIGNUM r; /* r (signiture 1st part) */ 62 BIGNUM s; /* s (signiture 2nd part) */ 63 BIGNUM v; /* v (verification value - should be = r ) */ 64 BIGNUM p_rr; /* 2^(2*(32*p->len)) mod p */ 65 BIGNUM q_rr; /* 2^(2*(32*q->len)) mod q */ 66 } DSAkey; 67 68 69 /* 70 * Function Prototypes. 71 */ 72 73 /* DSA */ 74 75 CK_RV soft_dsa_sign_verify_init_common(soft_session_t *, CK_MECHANISM_PTR, 76 soft_object_t *, boolean_t); 77 78 CK_RV soft_dsa_verify(soft_session_t *, CK_BYTE_PTR, CK_ULONG, 79 CK_BYTE_PTR, CK_ULONG); 80 81 CK_RV soft_dsa_sign(soft_session_t *, CK_BYTE_PTR, CK_ULONG, 82 CK_BYTE_PTR, CK_ULONG_PTR); 83 84 BIG_ERR_CODE DSA_key_init(DSAkey *, int); 85 86 void DSA_key_finish(DSAkey *); 87 88 CK_RV soft_dsa_genkey_pair(soft_object_t *, soft_object_t *); 89 90 CK_RV soft_dsa_digest_sign_common(soft_session_t *, CK_BYTE_PTR, 91 CK_ULONG, CK_BYTE_PTR, CK_ULONG_PTR, boolean_t); 92 93 CK_RV soft_dsa_digest_verify_common(soft_session_t *, CK_BYTE_PTR, 94 CK_ULONG, CK_BYTE_PTR, CK_ULONG, boolean_t); 95 96 #ifdef __cplusplus 97 } 98 #endif 99 100 #endif /* _SOFTDSA_H */ 101