gecko-dev/security/nss/lib/softoken/lowkey.c

379 lines
12 KiB
C

/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1994-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
#include "lowkeyi.h"
#include "secoid.h"
#include "secitem.h"
#include "secder.h"
#include "base64.h"
#include "secasn1.h"
#include "pcert.h"
#include "secerr.h"
const SEC_ASN1Template nsslowkey_PQGParamsTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(PQGParams) },
{ SEC_ASN1_INTEGER, offsetof(PQGParams,prime) },
{ SEC_ASN1_INTEGER, offsetof(PQGParams,subPrime) },
{ SEC_ASN1_INTEGER, offsetof(PQGParams,base) },
{ 0, }
};
const SEC_ASN1Template nsslowkey_RSAPrivateKeyTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(NSSLOWKEYPrivateKey) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.version) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.modulus) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.publicExponent) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.privateExponent) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.prime1) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.prime2) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.exponent1) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.exponent2) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.rsa.coefficient) },
{ 0 }
};
const SEC_ASN1Template nsslowkey_DSAPrivateKeyTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(NSSLOWKEYPrivateKey) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dsa.publicValue) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dsa.privateValue) },
{ 0, }
};
const SEC_ASN1Template nsslowkey_DSAPrivateKeyExportTemplate[] = {
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dsa.privateValue) },
};
const SEC_ASN1Template nsslowkey_DHPrivateKeyTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(NSSLOWKEYPrivateKey) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.publicValue) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.privateValue) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.base) },
{ SEC_ASN1_INTEGER, offsetof(NSSLOWKEYPrivateKey,u.dh.prime) },
{ 0, }
};
/*
* See bugzilla bug 125359
* Since NSS (via PKCS#11) wants to handle big integers as unsigned ints,
* all of the templates above that en/decode into integers must be converted
* from ASN.1's signed integer type. This is done by marking either the
* source or destination (encoding or decoding, respectively) type as
* siUnsignedInteger.
*/
void
prepare_low_rsa_priv_key_for_asn1(NSSLOWKEYPrivateKey *key)
{
key->u.rsa.modulus.type = siUnsignedInteger;
key->u.rsa.publicExponent.type = siUnsignedInteger;
key->u.rsa.privateExponent.type = siUnsignedInteger;
key->u.rsa.prime1.type = siUnsignedInteger;
key->u.rsa.prime2.type = siUnsignedInteger;
key->u.rsa.exponent1.type = siUnsignedInteger;
key->u.rsa.exponent2.type = siUnsignedInteger;
key->u.rsa.coefficient.type = siUnsignedInteger;
}
void
prepare_low_pqg_params_for_asn1(PQGParams *params)
{
params->prime.type = siUnsignedInteger;
params->subPrime.type = siUnsignedInteger;
params->base.type = siUnsignedInteger;
}
void
prepare_low_dsa_priv_key_for_asn1(NSSLOWKEYPrivateKey *key)
{
key->u.dsa.publicValue.type = siUnsignedInteger;
key->u.dsa.privateValue.type = siUnsignedInteger;
key->u.dsa.params.prime.type = siUnsignedInteger;
key->u.dsa.params.subPrime.type = siUnsignedInteger;
key->u.dsa.params.base.type = siUnsignedInteger;
}
void
prepare_low_dsa_priv_key_export_for_asn1(NSSLOWKEYPrivateKey *key)
{
key->u.dsa.privateValue.type = siUnsignedInteger;
}
void
prepare_low_dh_priv_key_for_asn1(NSSLOWKEYPrivateKey *key)
{
key->u.dh.prime.type = siUnsignedInteger;
key->u.dh.base.type = siUnsignedInteger;
key->u.dh.publicValue.type = siUnsignedInteger;
key->u.dh.privateValue.type = siUnsignedInteger;
}
void
nsslowkey_DestroyPrivateKey(NSSLOWKEYPrivateKey *privk)
{
if (privk && privk->arena) {
PORT_FreeArena(privk->arena, PR_TRUE);
}
}
void
nsslowkey_DestroyPublicKey(NSSLOWKEYPublicKey *pubk)
{
if (pubk && pubk->arena) {
PORT_FreeArena(pubk->arena, PR_FALSE);
}
}
unsigned
nsslowkey_PublicModulusLen(NSSLOWKEYPublicKey *pubk)
{
unsigned char b0;
/* interpret modulus length as key strength... in
* fortezza that's the public key length */
switch (pubk->keyType) {
case NSSLOWKEYRSAKey:
b0 = pubk->u.rsa.modulus.data[0];
return b0 ? pubk->u.rsa.modulus.len : pubk->u.rsa.modulus.len - 1;
default:
break;
}
return 0;
}
unsigned
nsslowkey_PrivateModulusLen(NSSLOWKEYPrivateKey *privk)
{
unsigned char b0;
switch (privk->keyType) {
case NSSLOWKEYRSAKey:
b0 = privk->u.rsa.modulus.data[0];
return b0 ? privk->u.rsa.modulus.len : privk->u.rsa.modulus.len - 1;
default:
break;
}
return 0;
}
NSSLOWKEYPublicKey *
nsslowkey_ConvertToPublicKey(NSSLOWKEYPrivateKey *privk)
{
NSSLOWKEYPublicKey *pubk;
PLArenaPool *arena;
arena = PORT_NewArena (DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
PORT_SetError (SEC_ERROR_NO_MEMORY);
return NULL;
}
switch(privk->keyType) {
case NSSLOWKEYRSAKey:
case NSSLOWKEYNullKey:
pubk = (NSSLOWKEYPublicKey *)PORT_ArenaZAlloc(arena,
sizeof (NSSLOWKEYPublicKey));
if (pubk != NULL) {
SECStatus rv;
pubk->arena = arena;
pubk->keyType = privk->keyType;
if (privk->keyType == NSSLOWKEYNullKey) return pubk;
rv = SECITEM_CopyItem(arena, &pubk->u.rsa.modulus,
&privk->u.rsa.modulus);
if (rv == SECSuccess) {
rv = SECITEM_CopyItem (arena, &pubk->u.rsa.publicExponent,
&privk->u.rsa.publicExponent);
if (rv == SECSuccess)
return pubk;
}
nsslowkey_DestroyPublicKey (pubk);
} else {
PORT_SetError (SEC_ERROR_NO_MEMORY);
}
break;
case NSSLOWKEYDSAKey:
pubk = (NSSLOWKEYPublicKey *)PORT_ArenaZAlloc(arena,
sizeof(NSSLOWKEYPublicKey));
if (pubk != NULL) {
SECStatus rv;
pubk->arena = arena;
pubk->keyType = privk->keyType;
rv = SECITEM_CopyItem(arena, &pubk->u.dsa.publicValue,
&privk->u.dsa.publicValue);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &pubk->u.dsa.params.prime,
&privk->u.dsa.params.prime);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &pubk->u.dsa.params.subPrime,
&privk->u.dsa.params.subPrime);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &pubk->u.dsa.params.base,
&privk->u.dsa.params.base);
if (rv == SECSuccess) return pubk;
}
break;
case NSSLOWKEYDHKey:
pubk = (NSSLOWKEYPublicKey *)PORT_ArenaZAlloc(arena,
sizeof(NSSLOWKEYPublicKey));
if (pubk != NULL) {
SECStatus rv;
pubk->arena = arena;
pubk->keyType = privk->keyType;
rv = SECITEM_CopyItem(arena, &pubk->u.dh.publicValue,
&privk->u.dh.publicValue);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &pubk->u.dh.prime,
&privk->u.dh.prime);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &pubk->u.dh.base,
&privk->u.dh.base);
if (rv == SECSuccess) return pubk;
}
break;
/* No Fortezza in Low Key implementations (Fortezza keys aren't
* stored in our data base */
default:
break;
}
PORT_FreeArena (arena, PR_FALSE);
return NULL;
}
NSSLOWKEYPrivateKey *
nsslowkey_CopyPrivateKey(NSSLOWKEYPrivateKey *privKey)
{
NSSLOWKEYPrivateKey *returnKey = NULL;
SECStatus rv = SECFailure;
PLArenaPool *poolp;
if(!privKey) {
return NULL;
}
poolp = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if(!poolp) {
return NULL;
}
returnKey = (NSSLOWKEYPrivateKey*)PORT_ArenaZAlloc(poolp, sizeof(NSSLOWKEYPrivateKey));
if(!returnKey) {
rv = SECFailure;
goto loser;
}
returnKey->keyType = privKey->keyType;
returnKey->arena = poolp;
switch(privKey->keyType) {
case NSSLOWKEYRSAKey:
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.modulus),
&(privKey->u.rsa.modulus));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.version),
&(privKey->u.rsa.version));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.publicExponent),
&(privKey->u.rsa.publicExponent));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.privateExponent),
&(privKey->u.rsa.privateExponent));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.prime1),
&(privKey->u.rsa.prime1));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.prime2),
&(privKey->u.rsa.prime2));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.exponent1),
&(privKey->u.rsa.exponent1));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.exponent2),
&(privKey->u.rsa.exponent2));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.rsa.coefficient),
&(privKey->u.rsa.coefficient));
if(rv != SECSuccess) break;
break;
case NSSLOWKEYDSAKey:
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.publicValue),
&(privKey->u.dsa.publicValue));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.privateValue),
&(privKey->u.dsa.privateValue));
if(rv != SECSuccess) break;
returnKey->u.dsa.params.arena = poolp;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.params.prime),
&(privKey->u.dsa.params.prime));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.params.subPrime),
&(privKey->u.dsa.params.subPrime));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dsa.params.base),
&(privKey->u.dsa.params.base));
if(rv != SECSuccess) break;
break;
case NSSLOWKEYDHKey:
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.publicValue),
&(privKey->u.dh.publicValue));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.privateValue),
&(privKey->u.dh.privateValue));
if(rv != SECSuccess) break;
returnKey->u.dsa.params.arena = poolp;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.prime),
&(privKey->u.dh.prime));
if(rv != SECSuccess) break;
rv = SECITEM_CopyItem(poolp, &(returnKey->u.dh.base),
&(privKey->u.dh.base));
if(rv != SECSuccess) break;
break;
default:
rv = SECFailure;
}
loser:
if(rv != SECSuccess) {
PORT_FreeArena(poolp, PR_TRUE);
returnKey = NULL;
}
return returnKey;
}