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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/fcntl.h>
#include <sys/time.h>
#include <sys/unistd.h>
#include <sys/kmem.h>
#include <sys/systm.h>
#include <sys/sysmacros.h>
#include <sys/sha1.h>
#define _SHA2_IMPL
#include <sys/sha2.h>
#include <sys/crypto/common.h>
#include <modes/modes.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <stdio.h>
#include <security/cryptoki.h>
#include <cryptoutil.h>
#include "softCrypt.h"
#include "softGlobal.h"
#include "softRSA.h"
#include "softDSA.h"
#include "softOps.h"
#include "softMAC.h"
#include <fips_post.h>
#define MAX_ECKEY_LEN 72
/*
* FIPS 140-2 pairwise consistency check utilized to validate key pair.
*
* This function returns
* CKR_OK if pairwise consistency check passed
* CKR_GENERAL_ERROR if pairwise consistency check failed
* other error codes if pairwise consistency check could not be
* performed, for example, CKR_HOST_MEMORY.
*
* Key type Mechanism type
* --------------------------------
*
* For sign/verify: CKK_RSA => CKM_SHA1_RSA_PKCS
* CKK_DSA => CKM_DSA_SHA1
* CKK_EC => CKM_ECDSA_SHA1
* others => CKM_INVALID_MECHANISM
*
* None of these mechanisms has a parameter.
*/
CK_RV
fips_pairwise_check(soft_session_t *session_p,
soft_object_t *publicKey, soft_object_t *privateKey,
CK_KEY_TYPE keyType)
{
CK_MECHANISM mech = {0, NULL, 0};
uchar_t modulus[MAX_KEY_ATTR_BUFLEN];
uint32_t modulus_len = sizeof (modulus);
boolean_t can_sign_verify = B_FALSE;
CK_RV rv;
/* Variables used for Signature/Verification functions. */
/* always uses SHA-1 digest */
unsigned char *known_digest = (unsigned char *)"OpenSolarisCommunity";
unsigned char *signature;
CK_ULONG signature_length;
if (keyType == CKK_RSA) {
/* Get modulus length of private key. */
rv = soft_get_private_value(privateKey, CKA_MODULUS,
modulus, &modulus_len);
if (rv != CKR_OK) {
return (CKR_DEVICE_ERROR);
}
}
/*
* Pairwise Consistency Check of Sign/Verify
*/
/* Check to see if key object supports signature. */
can_sign_verify = (privateKey->bool_attr_mask & SIGN_BOOL_ON);
if (can_sign_verify) {
/* Determine length of signature. */
switch (keyType) {
case CKK_RSA:
signature_length = modulus_len;
mech.mechanism = CKM_SHA1_RSA_PKCS;
break;
case CKK_DSA:
signature_length = FIPS_DSA_SIGNATURE_LENGTH;
mech.mechanism = CKM_DSA_SHA1;
break;
case CKK_EC:
signature_length = MAX_ECKEY_LEN * 2;
mech.mechanism = CKM_ECDSA_SHA1;
break;
default:
return (CKR_DEVICE_ERROR);
}
/* Allocate space for signature data. */
signature = (unsigned char *) calloc(1, signature_length);
if (signature == NULL) {
return (CKR_HOST_MEMORY);
}
/* Sign the known hash using the private key. */
rv = soft_sign_init(session_p, &mech, privateKey);
if (rv != CKR_OK) {
free(signature);
return (rv);
}
rv = soft_sign(session_p, known_digest, PAIRWISE_DIGEST_LENGTH,
signature, &signature_length);
if (rv != CKR_OK) {
free(signature);
return (rv);
}
/* Verify the known hash using the public key. */
rv = soft_verify_init(session_p, &mech, publicKey);
if (rv != CKR_OK) {
free(signature);
return (rv);
}
rv = soft_verify(session_p, known_digest,
PAIRWISE_DIGEST_LENGTH, signature,
signature_length);
/* Free signature data. */
free(signature);
if ((rv == CKR_SIGNATURE_LEN_RANGE) ||
(rv == CKR_SIGNATURE_INVALID)) {
return (CKR_GENERAL_ERROR);
}
if (rv != CKR_OK) {
return (rv);
}
}
return (CKR_OK);
}
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