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471 lines
15 KiB
C
471 lines
15 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1994-2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* Thse functions are stub functions which will get replaced with calls through
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* PKCS #11.
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*/
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#include "pk11func.h"
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#include "secmod.h"
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#include "secmodi.h"
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#include "secmodti.h"
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#include "pkcs11t.h"
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#include "pk11pqg.h"
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#include "secerr.h"
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/* Generate PQGParams and PQGVerify structs.
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* Length of P specified by j. Length of h will match length of P.
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* Length of SEED in bytes specified in seedBytes.
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* seedBbytes must be in the range [20..255] or an error will result.
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*/
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extern SECStatus
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PK11_PQG_ParamGenSeedLen( unsigned int j, unsigned int seedBytes,
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PQGParams **pParams, PQGVerify **pVfy)
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{
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PK11SlotInfo *slot = NULL;
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CK_ATTRIBUTE genTemplate[5];
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CK_ATTRIBUTE *attrs = genTemplate;
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int count = sizeof(genTemplate)/sizeof(genTemplate[0]);
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CK_MECHANISM mechanism;
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CK_OBJECT_HANDLE objectID = CK_INVALID_HANDLE;
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CK_RV crv;
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CK_ATTRIBUTE pTemplate[] = {
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{ CKA_PRIME, NULL, 0 },
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{ CKA_SUBPRIME, NULL, 0 },
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{ CKA_BASE, NULL, 0 },
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};
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CK_ATTRIBUTE vTemplate[] = {
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{ CKA_NETSCAPE_PQG_COUNTER, NULL, 0 },
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{ CKA_NETSCAPE_PQG_SEED, NULL, 0 },
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{ CKA_NETSCAPE_PQG_H, NULL, 0 },
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};
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int pTemplateCount = sizeof(pTemplate)/sizeof(pTemplate[0]);
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int vTemplateCount = sizeof(vTemplate)/sizeof(vTemplate[0]);
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PRArenaPool *parena = NULL;
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PRArenaPool *varena = NULL;
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PQGParams *params = NULL;
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PQGVerify *verify = NULL;
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CK_ULONG primeBits = PQG_INDEX_TO_PBITS(j);
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CK_ULONG seedBits = seedBytes*8;
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*pParams = NULL;
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*pVfy = NULL;
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if (primeBits == (CK_ULONG)-1) {
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PORT_SetError(SEC_ERROR_INVALID_ARGS);
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goto loser;
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}
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PK11_SETATTRS(attrs, CKA_PRIME_BITS,&primeBits,sizeof(primeBits)); attrs++;
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if (seedBits != 0) {
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PK11_SETATTRS(attrs, CKA_NETSCAPE_PQG_SEED_BITS,
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&seedBits, sizeof(seedBits)); attrs++;
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}
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count = attrs - genTemplate;
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PR_ASSERT(count <= sizeof(genTemplate)/sizeof(CK_ATTRIBUTE));
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slot = PK11_GetInternalSlot();
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if (slot == NULL) {
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/* set error */
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goto loser;
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}
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/* Initialize the Key Gen Mechanism */
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mechanism.mechanism = CKM_DSA_PARAMETER_GEN;
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mechanism.pParameter = NULL;
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mechanism.ulParameterLen = 0;
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PK11_EnterSlotMonitor(slot);
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crv = PK11_GETTAB(slot)->C_GenerateKey(slot->session,
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&mechanism, genTemplate, count, &objectID);
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PK11_ExitSlotMonitor(slot);
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if (crv != CKR_OK) {
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PORT_SetError( PK11_MapError(crv) );
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goto loser;
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}
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parena = PORT_NewArena(60);
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if (!parena) {
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goto loser;
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}
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crv = PK11_GetAttributes(parena, slot, objectID, pTemplate, pTemplateCount);
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if (crv != CKR_OK) {
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PORT_SetError( PK11_MapError(crv) );
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goto loser;
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}
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params = (PQGParams *)PORT_ArenaAlloc(parena,sizeof(PQGParams));
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if (params == NULL) {
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goto loser;
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}
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/* fill in Params */
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params->arena = parena;
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params->prime.type = siUnsignedInteger;
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params->prime.data = pTemplate[0].pValue;
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params->prime.len = pTemplate[0].ulValueLen;
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params->subPrime.type = siUnsignedInteger;
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params->subPrime.data = pTemplate[1].pValue;
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params->subPrime.len = pTemplate[1].ulValueLen;
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params->base.type = siUnsignedInteger;
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params->base.data = pTemplate[2].pValue;
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params->base.len = pTemplate[2].ulValueLen;
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varena = PORT_NewArena(60);
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if (!varena) {
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goto loser;
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}
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crv = PK11_GetAttributes(varena, slot, objectID, vTemplate, vTemplateCount);
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if (crv != CKR_OK) {
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PORT_SetError( PK11_MapError(crv) );
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goto loser;
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}
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verify = (PQGVerify *)PORT_ArenaAlloc(varena,sizeof(PQGVerify));
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if (verify == NULL) {
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goto loser;
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}
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/* fill in Params */
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verify->arena = varena;
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verify->counter = (unsigned int)(*(CK_ULONG*)vTemplate[0].pValue);
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verify->seed.type = siUnsignedInteger;
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verify->seed.data = vTemplate[1].pValue;
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verify->seed.len = vTemplate[1].ulValueLen;
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verify->h.type = siUnsignedInteger;
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verify->h.data = vTemplate[2].pValue;
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verify->h.len = vTemplate[2].ulValueLen;
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PK11_DestroyObject(slot,objectID);
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PK11_FreeSlot(slot);
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*pParams = params;
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*pVfy = verify;
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return SECSuccess;
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loser:
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if (objectID != CK_INVALID_HANDLE) {
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PK11_DestroyObject(slot,objectID);
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}
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if (parena != NULL) {
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PORT_FreeArena(parena,PR_FALSE);
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}
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if (varena != NULL) {
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PORT_FreeArena(varena,PR_FALSE);
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}
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if (slot) {
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PK11_FreeSlot(slot);
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}
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return SECFailure;
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}
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/* Generate PQGParams and PQGVerify structs.
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* Length of seed and length of h both equal length of P.
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* All lengths are specified by "j", according to the table above.
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*/
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extern SECStatus
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PK11_PQG_ParamGen(unsigned int j, PQGParams **pParams, PQGVerify **pVfy)
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{
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return PK11_PQG_ParamGenSeedLen(j, 0, pParams, pVfy);
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}
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/* Test PQGParams for validity as DSS PQG values.
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* If vfy is non-NULL, test PQGParams to make sure they were generated
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* using the specified seed, counter, and h values.
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*
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* Return value indicates whether Verification operation ran successfully
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* to completion, but does not indicate if PQGParams are valid or not.
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* If return value is SECSuccess, then *pResult has these meanings:
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* SECSuccess: PQGParams are valid.
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* SECFailure: PQGParams are invalid.
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*/
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extern SECStatus
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PK11_PQG_VerifyParams(const PQGParams *params, const PQGVerify *vfy,
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SECStatus *result)
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{
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CK_ATTRIBUTE keyTempl[] = {
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{ CKA_CLASS, NULL, 0 },
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{ CKA_KEY_TYPE, NULL, 0 },
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{ CKA_PRIME, NULL, 0 },
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{ CKA_SUBPRIME, NULL, 0 },
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{ CKA_BASE, NULL, 0 },
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{ CKA_TOKEN, NULL, 0 },
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{ CKA_NETSCAPE_PQG_COUNTER, NULL, 0 },
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{ CKA_NETSCAPE_PQG_SEED, NULL, 0 },
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{ CKA_NETSCAPE_PQG_H, NULL, 0 },
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};
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CK_ATTRIBUTE *attrs;
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CK_BBOOL ckfalse = CK_FALSE;
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CK_OBJECT_CLASS class = CKO_KG_PARAMETERS;
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CK_KEY_TYPE keyType = CKK_DSA;
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SECStatus rv = SECSuccess;
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PK11SlotInfo *slot;
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int keyCount;
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CK_OBJECT_HANDLE objectID;
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CK_ULONG counter;
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CK_RV crv;
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attrs = keyTempl;
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PK11_SETATTRS(attrs, CKA_CLASS, &class, sizeof(class)); attrs++;
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PK11_SETATTRS(attrs, CKA_KEY_TYPE, &keyType, sizeof(keyType)); attrs++;
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PK11_SETATTRS(attrs, CKA_PRIME, params->prime.data,
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params->prime.len); attrs++;
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PK11_SETATTRS(attrs, CKA_SUBPRIME, params->subPrime.data,
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params->subPrime.len); attrs++;
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PK11_SETATTRS(attrs, CKA_BASE,params->base.data,params->base.len); attrs++;
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PK11_SETATTRS(attrs, CKA_TOKEN, &ckfalse, sizeof(ckfalse)); attrs++;
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if (vfy) {
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counter = vfy->counter;
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PK11_SETATTRS(attrs, CKA_NETSCAPE_PQG_COUNTER,
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&counter, sizeof(counter)); attrs++;
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PK11_SETATTRS(attrs, CKA_NETSCAPE_PQG_SEED,
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vfy->seed.data, vfy->seed.len); attrs++;
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PK11_SETATTRS(attrs, CKA_NETSCAPE_PQG_H,
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vfy->h.data, vfy->h.len); attrs++;
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}
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keyCount = attrs - keyTempl;
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PORT_Assert(keyCount <= sizeof(keyTempl)/sizeof(keyTempl[0]));
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slot = PK11_GetInternalSlot();
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if (slot == NULL) {
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return SECFailure;
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}
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PK11_EnterSlotMonitor(slot);
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crv = PK11_GETTAB(slot)->C_CreateObject(slot->session, keyTempl, keyCount,
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&objectID);
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PK11_ExitSlotMonitor(slot);
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/* throw away the keys, we only wanted the return code */
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PK11_DestroyObject(slot,objectID);
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PK11_FreeSlot(slot);
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*result = SECSuccess;
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if (crv == CKR_ATTRIBUTE_VALUE_INVALID) {
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*result = SECFailure;
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} else if (crv != CKR_OK) {
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PORT_SetError( PK11_MapError(crv) );
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rv = SECFailure;
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}
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return rv;
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}
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/**************************************************************************
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* Free the PQGParams struct and the things it points to. *
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**************************************************************************/
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extern void
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PK11_PQG_DestroyParams(PQGParams *params) {
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if (params == NULL)
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return;
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if (params->arena != NULL) {
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PORT_FreeArena(params->arena, PR_FALSE); /* don't zero it */
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} else {
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SECITEM_FreeItem(¶ms->prime, PR_FALSE); /* don't free prime */
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SECITEM_FreeItem(¶ms->subPrime, PR_FALSE); /* don't free subPrime */
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SECITEM_FreeItem(¶ms->base, PR_FALSE); /* don't free base */
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PORT_Free(params);
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}
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}
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/**************************************************************************
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* Free the PQGVerify struct and the things it points to. *
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**************************************************************************/
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extern void
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PK11_PQG_DestroyVerify(PQGVerify *vfy) {
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if (vfy == NULL)
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return;
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if (vfy->arena != NULL) {
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PORT_FreeArena(vfy->arena, PR_FALSE); /* don't zero it */
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} else {
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SECITEM_FreeItem(&vfy->seed, PR_FALSE); /* don't free seed */
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SECITEM_FreeItem(&vfy->h, PR_FALSE); /* don't free h */
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PORT_Free(vfy);
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}
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}
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#define PQG_DEFAULT_CHUNKSIZE 2048 /* bytes */
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/**************************************************************************
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* Return a pointer to a new PQGParams struct that is constructed from *
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* copies of the arguments passed in. *
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* Return NULL on failure. *
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**************************************************************************/
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extern PQGParams *
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PK11_PQG_NewParams(const SECItem * prime, const SECItem * subPrime,
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const SECItem * base) {
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PRArenaPool *arena;
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PQGParams *dest;
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SECStatus status;
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arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE);
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if (arena == NULL)
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goto loser;
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dest = (PQGParams*)PORT_ArenaZAlloc(arena, sizeof(PQGParams));
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if (dest == NULL)
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goto loser;
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dest->arena = arena;
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status = SECITEM_CopyItem(arena, &dest->prime, prime);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->subPrime, subPrime);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->base, base);
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if (status != SECSuccess)
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goto loser;
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return dest;
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loser:
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if (arena != NULL)
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PORT_FreeArena(arena, PR_FALSE);
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return NULL;
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}
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/**************************************************************************
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* Fills in caller's "prime" SECItem with the prime value in params.
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* Contents can be freed by calling SECITEM_FreeItem(prime, PR_FALSE);
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**************************************************************************/
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extern SECStatus
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PK11_PQG_GetPrimeFromParams(const PQGParams *params, SECItem * prime) {
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return SECITEM_CopyItem(NULL, prime, ¶ms->prime);
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}
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/**************************************************************************
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* Fills in caller's "subPrime" SECItem with the prime value in params.
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* Contents can be freed by calling SECITEM_FreeItem(subPrime, PR_FALSE);
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**************************************************************************/
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extern SECStatus
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PK11_PQG_GetSubPrimeFromParams(const PQGParams *params, SECItem * subPrime) {
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return SECITEM_CopyItem(NULL, subPrime, ¶ms->subPrime);
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}
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/**************************************************************************
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* Fills in caller's "base" SECItem with the base value in params.
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* Contents can be freed by calling SECITEM_FreeItem(base, PR_FALSE);
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**************************************************************************/
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extern SECStatus
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PK11_PQG_GetBaseFromParams(const PQGParams *params, SECItem *base) {
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return SECITEM_CopyItem(NULL, base, ¶ms->base);
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}
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/**************************************************************************
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* Return a pointer to a new PQGVerify struct that is constructed from *
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* copies of the arguments passed in. *
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* Return NULL on failure. *
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**************************************************************************/
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extern PQGVerify *
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PK11_PQG_NewVerify(unsigned int counter, const SECItem * seed,
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const SECItem * h) {
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PRArenaPool *arena;
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PQGVerify * dest;
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SECStatus status;
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arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE);
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if (arena == NULL)
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goto loser;
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dest = (PQGVerify*)PORT_ArenaZAlloc(arena, sizeof(PQGVerify));
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if (dest == NULL)
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goto loser;
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dest->arena = arena;
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dest->counter = counter;
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status = SECITEM_CopyItem(arena, &dest->seed, seed);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->h, h);
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if (status != SECSuccess)
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goto loser;
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return dest;
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loser:
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if (arena != NULL)
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PORT_FreeArena(arena, PR_FALSE);
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return NULL;
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}
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/**************************************************************************
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* Returns "counter" value from the PQGVerify.
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**************************************************************************/
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extern unsigned int
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PK11_PQG_GetCounterFromVerify(const PQGVerify *verify) {
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return verify->counter;
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}
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/**************************************************************************
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* Fills in caller's "seed" SECItem with the seed value in verify.
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* Contents can be freed by calling SECITEM_FreeItem(seed, PR_FALSE);
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**************************************************************************/
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extern SECStatus
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PK11_PQG_GetSeedFromVerify(const PQGVerify *verify, SECItem *seed) {
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return SECITEM_CopyItem(NULL, seed, &verify->seed);
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}
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/**************************************************************************
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* Fills in caller's "h" SECItem with the h value in verify.
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* Contents can be freed by calling SECITEM_FreeItem(h, PR_FALSE);
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**************************************************************************/
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extern SECStatus
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PK11_PQG_GetHFromVerify(const PQGVerify *verify, SECItem * h) {
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return SECITEM_CopyItem(NULL, h, &verify->h);
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}
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