softSignUtil.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdlib.h>
#include <strings.h>
#include <sys/types.h>
#include <security/cryptoki.h>
#include "softObject.h"
#include "softOps.h"
#include "softSession.h"
#include "softMAC.h"
#include "softRSA.h"
#include "softDSA.h"
#include "softCrypt.h"
/*
* soft_sign_init()
*
* Arguments:
* session_p: pointer to soft_session_t struct
* pMechanism: pointer to CK_MECHANISM struct provided by application
* key_p: pointer to key soft_object_t struct
*
* Description:
* called by C_SignInit(). This function calls the corresponding
* sign init routine based on the mechanism.
*
*/
CK_RV
soft_sign_init(soft_session_t *session_p, CK_MECHANISM_PTR pMechanism,
soft_object_t *key_p)
{
switch (pMechanism->mechanism) {
case CKM_SSL3_MD5_MAC:
case CKM_SSL3_SHA1_MAC:
case CKM_MD5_HMAC_GENERAL:
case CKM_MD5_HMAC:
case CKM_SHA_1_HMAC_GENERAL:
case CKM_SHA_1_HMAC:
return (soft_hmac_sign_verify_init_common(session_p,
pMechanism, key_p, B_TRUE));
case CKM_RSA_X_509:
case CKM_RSA_PKCS:
case CKM_MD5_RSA_PKCS:
case CKM_SHA1_RSA_PKCS:
return (soft_rsa_sign_verify_init_common(session_p, pMechanism,
key_p, B_TRUE));
case CKM_DSA:
case CKM_DSA_SHA1:
return (soft_dsa_sign_verify_init_common(session_p, pMechanism,
key_p, B_TRUE));
case CKM_DES_MAC_GENERAL:
case CKM_DES_MAC:
return (soft_des_sign_verify_init_common(session_p, pMechanism,
key_p, B_TRUE));
default:
return (CKR_MECHANISM_INVALID);
}
}
/*
* soft_sign()
*
* Arguments:
* session_p: pointer to soft_session_t struct
* pData: pointer to the input data to be signed
* ulDataLen: length of the input data
* pSignature: pointer to the signature after signing
* pulSignatureLen: pointer to the length of the signature
*
* Description:
* called by C_Sign(). This function calls the corresponding
* sign routine based on the mechanism.
*
*/
CK_RV
soft_sign(soft_session_t *session_p, CK_BYTE_PTR pData,
CK_ULONG ulDataLen, CK_BYTE_PTR pSignature,
CK_ULONG_PTR pulSignatureLen)
{
CK_MECHANISM_TYPE mechanism = session_p->sign.mech.mechanism;
CK_RV rv = CKR_OK;
switch (mechanism) {
case CKM_SSL3_MD5_MAC:
case CKM_SSL3_SHA1_MAC:
case CKM_MD5_HMAC_GENERAL:
case CKM_MD5_HMAC:
case CKM_SHA_1_HMAC_GENERAL:
case CKM_SHA_1_HMAC:
{
CK_BYTE hmac[SHA1_HASH_SIZE]; /* use the maximum size */
if (pSignature != NULL) {
/* Pass local buffer to avoid overflow. */
rv = soft_hmac_sign_verify_common(session_p, pData,
ulDataLen, hmac, pulSignatureLen, B_TRUE);
} else {
/* Pass original pSignature, let callee to handle it. */
rv = soft_hmac_sign_verify_common(session_p, pData,
ulDataLen, pSignature, pulSignatureLen, B_TRUE);
}
if ((rv == CKR_OK) && (pSignature != NULL))
(void) memcpy(pSignature, hmac, *pulSignatureLen);
return (rv);
}
case CKM_DES_MAC_GENERAL:
case CKM_DES_MAC:
{
CK_BYTE signature[DES_BLOCK_LEN]; /* use the maximum size */
if (pSignature != NULL) {
/* Pass local buffer to avoid overflow. */
rv = soft_des_sign_verify_common(session_p, pData,
ulDataLen, signature, pulSignatureLen, B_TRUE,
B_FALSE);
} else {
/* Pass NULL, let callee to handle it. */
rv = soft_des_sign_verify_common(session_p, pData,
ulDataLen, NULL, pulSignatureLen, B_TRUE,
B_FALSE);
}
if ((rv == CKR_OK) && (pSignature != NULL))
(void) memcpy(pSignature, signature, *pulSignatureLen);
return (rv);
}
case CKM_RSA_X_509:
case CKM_RSA_PKCS:
return (soft_rsa_sign_common(session_p, pData, ulDataLen,
pSignature, pulSignatureLen, mechanism));
case CKM_MD5_RSA_PKCS:
case CKM_SHA1_RSA_PKCS:
return (soft_rsa_digest_sign_common(session_p, pData, ulDataLen,
pSignature, pulSignatureLen, mechanism, B_FALSE));
case CKM_DSA:
return (soft_dsa_sign(session_p, pData, ulDataLen,
pSignature, pulSignatureLen));
case CKM_DSA_SHA1:
return (soft_dsa_digest_sign_common(session_p, pData, ulDataLen,
pSignature, pulSignatureLen, B_FALSE));
default:
return (CKR_MECHANISM_INVALID);
}
}
/*
* soft_sign_update()
*
* Arguments:
* session_p: pointer to soft_session_t struct
* pPart: pointer to the input data to be signed
* ulPartLen: length of the input data
*
* Description:
* called by C_SignUpdate(). This function calls the corresponding
* sign update routine based on the mechanism.
*
*/
CK_RV
soft_sign_update(soft_session_t *session_p, CK_BYTE_PTR pPart,
CK_ULONG ulPartLen)
{
CK_MECHANISM_TYPE mechanism = session_p->sign.mech.mechanism;
switch (mechanism) {
case CKM_SSL3_MD5_MAC:
case CKM_SSL3_SHA1_MAC:
case CKM_MD5_HMAC_GENERAL:
case CKM_MD5_HMAC:
case CKM_SHA_1_HMAC_GENERAL:
case CKM_SHA_1_HMAC:
return (soft_hmac_sign_verify_update(session_p, pPart,
ulPartLen, B_TRUE));
case CKM_DES_MAC_GENERAL:
case CKM_DES_MAC:
return (soft_des_mac_sign_verify_update(session_p, pPart,
ulPartLen));
case CKM_MD5_RSA_PKCS:
case CKM_SHA1_RSA_PKCS:
/*
* The MD5/SHA1 digest value is accumulated in the context
* of the multiple-part digesting operation. In the final
* operation, the digest is encoded and then perform RSA
* signing.
*/
case CKM_DSA_SHA1:
return (soft_digest_update(session_p, pPart, ulPartLen));
default:
/* PKCS11: The mechanism only supports single-part operation. */
return (CKR_MECHANISM_INVALID);
}
}
/*
* soft_sign_final()
*
* Arguments:
* session_p: pointer to soft_session_t struct
* pSignature: pointer to the signature after signing
* pulSignatureLen: pointer to the length of the signature
*
* Description:
* called by C_SignFinal(). This function calls the corresponding
* sign final routine based on the mechanism.
*
*/
CK_RV
soft_sign_final(soft_session_t *session_p, CK_BYTE_PTR pSignature,
CK_ULONG_PTR pulSignatureLen)
{
CK_MECHANISM_TYPE mechanism = session_p->sign.mech.mechanism;
CK_RV rv = CKR_OK;
switch (mechanism) {
case CKM_SSL3_MD5_MAC:
case CKM_SSL3_SHA1_MAC:
case CKM_MD5_HMAC_GENERAL:
case CKM_MD5_HMAC:
case CKM_SHA_1_HMAC_GENERAL:
case CKM_SHA_1_HMAC:
{
CK_BYTE hmac[SHA1_HASH_SIZE]; /* use the maximum size */
if (pSignature != NULL) {
/* Pass local buffer to avoid overflow */
rv = soft_hmac_sign_verify_common(session_p, NULL,
0, hmac, pulSignatureLen, B_TRUE);
} else {
/* Pass original pSignature, let callee to handle it. */
rv = soft_hmac_sign_verify_common(session_p, NULL,
0, pSignature, pulSignatureLen, B_TRUE);
}
if ((rv == CKR_OK) && (pSignature != NULL))
(void) memcpy(pSignature, hmac, *pulSignatureLen);
return (rv);
}
case CKM_DES_MAC_GENERAL:
case CKM_DES_MAC:
{
CK_BYTE signature[DES_BLOCK_LEN]; /* use the maximum size */
if (pSignature != NULL) {
/* Pass local buffer to avoid overflow. */
rv = soft_des_sign_verify_common(session_p, NULL, 0,
signature, pulSignatureLen, B_TRUE, B_TRUE);
} else {
/* Pass NULL, let callee to handle it. */
rv = soft_des_sign_verify_common(session_p, NULL, 0,
NULL, pulSignatureLen, B_TRUE, B_TRUE);
}
if ((rv == CKR_OK) && (pSignature != NULL))
(void) memcpy(pSignature, signature, *pulSignatureLen);
return (rv);
}
case CKM_MD5_RSA_PKCS:
case CKM_SHA1_RSA_PKCS:
return (soft_rsa_digest_sign_common(session_p, NULL, 0,
pSignature, pulSignatureLen, mechanism, B_TRUE));
case CKM_DSA_SHA1:
return (soft_dsa_digest_sign_common(session_p, NULL, 0,
pSignature, pulSignatureLen, B_TRUE));
default:
/* PKCS11: The mechanism only supports single-part operation. */
return (CKR_MECHANISM_INVALID);
}
}
CK_RV
soft_sign_recover_init(soft_session_t *session_p, CK_MECHANISM_PTR pMechanism,
soft_object_t *key_p)
{
switch (pMechanism->mechanism) {
case CKM_RSA_X_509:
case CKM_RSA_PKCS:
return (soft_rsa_sign_verify_init_common(session_p, pMechanism,
key_p, B_TRUE));
default:
return (CKR_MECHANISM_INVALID);
}
}
CK_RV
soft_sign_recover(soft_session_t *session_p, CK_BYTE_PTR pData,
CK_ULONG ulDataLen, CK_BYTE_PTR pSignature,
CK_ULONG_PTR pulSignatureLen)
{
CK_MECHANISM_TYPE mechanism = session_p->sign.mech.mechanism;
switch (mechanism) {
case CKM_RSA_X_509:
case CKM_RSA_PKCS:
return (soft_rsa_sign_common(session_p, pData, ulDataLen,
pSignature, pulSignatureLen, mechanism));
default:
return (CKR_MECHANISM_INVALID);
}
}
/*
* This function frees the allocated active crypto context.
* It is only called by the first tier of sign/verify routines
* and the caller of this function may or may not hold the session mutex.
*/
void
soft_sign_verify_cleanup(soft_session_t *session_p, boolean_t sign,
boolean_t lock_held)
{
crypto_active_op_t *active_op;
boolean_t lock_true = B_TRUE;
if (!lock_held)
(void) pthread_mutex_lock(&session_p->session_mutex);
active_op = (sign) ? &(session_p->sign) : &(session_p->verify);
switch (active_op->mech.mechanism) {
case CKM_MD5_RSA_PKCS:
case CKM_SHA1_RSA_PKCS:
case CKM_DSA_SHA1:
if (session_p->digest.context != NULL) {
free(session_p->digest.context);
session_p->digest.context = NULL;
session_p->digest.flags = 0;
}
break;
case CKM_RSA_PKCS:
case CKM_RSA_X_509:
case CKM_DSA:
break;
case CKM_SSL3_MD5_MAC:
case CKM_SSL3_SHA1_MAC:
case CKM_MD5_HMAC_GENERAL:
case CKM_MD5_HMAC:
case CKM_SHA_1_HMAC_GENERAL:
case CKM_SHA_1_HMAC:
if (active_op->context != NULL)
bzero(active_op->context, sizeof (soft_hmac_ctx_t));
break;
case CKM_DES_MAC_GENERAL:
case CKM_DES_MAC:
if (session_p->encrypt.context != NULL) {
free(session_p->encrypt.context);
session_p->encrypt.context = NULL;
session_p->encrypt.flags = 0;
}
if (active_op->context != NULL)
bzero(active_op->context, sizeof (soft_des_ctx_t));
break;
}
if (active_op->context != NULL) {
free(active_op->context);
active_op->context = NULL;
}
active_op->flags = 0;
if (!lock_held)
SES_REFRELE(session_p, lock_true);
}