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688 lines
19 KiB
C
688 lines
19 KiB
C
/*
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* ***** 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 Elliptic Curve Cryptography library.
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*
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* The Initial Developer of the Original Code is
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* Sun Microsystems, Inc.
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* Portions created by the Initial Developer are Copyright (C) 2003
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Dr Vipul Gupta <vipul.gupta@sun.com> and
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* Douglas Stebila <douglas@stebila.ca>, Sun Microsystems Laboratories
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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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#ifdef NSS_ENABLE_ECC
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#include "blapi.h"
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#include "secoid.h"
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#include "secitem.h"
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#include "secerr.h"
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#include "ec.h"
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#include "ecl-curve.h"
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#define CHECK_OK(func) if (func == NULL) goto cleanup
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#define CHECK_SEC_OK(func) if (SECSuccess != (rv = func)) goto cleanup
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/* Initializes a SECItem from a hexadecimal string */
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static SECItem *
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hexString2SECItem(PRArenaPool *arena, SECItem *item, const char *str)
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{
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int i = 0;
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int byteval = 0;
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int tmp = PORT_Strlen(str);
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if ((tmp % 2) != 0) return NULL;
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item->data = (unsigned char *) PORT_ArenaAlloc(arena, tmp/2);
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if (item->data == NULL) return NULL;
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item->len = tmp/2;
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while (str[i]) {
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if ((str[i] >= '0') && (str[i] <= '9'))
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tmp = str[i] - '0';
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else if ((str[i] >= 'a') && (str[i] <= 'f'))
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tmp = str[i] - 'a' + 10;
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else if ((str[i] >= 'A') && (str[i] <= 'F'))
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tmp = str[i] - 'A' + 10;
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else
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return NULL;
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byteval = byteval * 16 + tmp;
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if ((i % 2) != 0) {
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item->data[i/2] = byteval;
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byteval = 0;
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}
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i++;
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}
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return item;
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}
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/* Copy all of the fields from srcParams into dstParams
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*/
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SECStatus
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EC_CopyParams(PRArenaPool *arena, ECParams *dstParams,
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const ECParams *srcParams)
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{
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SECStatus rv = SECFailure;
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dstParams->arena = arena;
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dstParams->type = srcParams->type;
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dstParams->fieldID.size = srcParams->fieldID.size;
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dstParams->fieldID.type = srcParams->fieldID.type;
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if (srcParams->fieldID.type == ec_field_GFp) {
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->fieldID.u.prime,
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&srcParams->fieldID.u.prime));
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} else {
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->fieldID.u.poly,
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&srcParams->fieldID.u.poly));
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}
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dstParams->fieldID.k1 = srcParams->fieldID.k1;
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dstParams->fieldID.k2 = srcParams->fieldID.k2;
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dstParams->fieldID.k3 = srcParams->fieldID.k3;
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curve.a,
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&srcParams->curve.a));
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curve.b,
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&srcParams->curve.b));
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curve.seed,
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&srcParams->curve.seed));
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->base,
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&srcParams->base));
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->order,
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&srcParams->order));
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->DEREncoding,
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&srcParams->DEREncoding));
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dstParams->name = srcParams->name;
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CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curveOID,
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&srcParams->curveOID));
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dstParams->cofactor = srcParams->cofactor;
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return SECSuccess;
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cleanup:
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return SECFailure;
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}
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SECStatus
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EC_FillParams(PRArenaPool *arena, const SECItem *encodedParams,
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ECParams *params)
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{
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SECOidTag tag;
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SECItem oid = { siBuffer, NULL, 0};
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const ECCurveParams *curveParams;
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char genenc[2 + 2 * 2 * MAX_ECKEY_LEN];
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#if EC_DEBUG
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int i;
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printf("Encoded params in EC_DecodeParams: ");
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for (i = 0; i < encodedParams->len; i++) {
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printf("%02x:", encodedParams->data[i]);
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}
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printf("\n");
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#endif
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if ((encodedParams->len != ANSI_X962_CURVE_OID_TOTAL_LEN) &&
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(encodedParams->len != SECG_CURVE_OID_TOTAL_LEN)) {
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PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
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return SECFailure;
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};
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oid.len = encodedParams->len - 2;
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oid.data = encodedParams->data + 2;
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if ((encodedParams->data[0] != SEC_ASN1_OBJECT_ID) ||
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((tag = SECOID_FindOIDTag(&oid)) == SEC_OID_UNKNOWN)) {
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PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
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return SECFailure;
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}
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params->arena = arena;
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params->cofactor = 0;
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params->type = ec_params_named;
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params->name = ECCurve_noName;
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/* For named curves, fill out curveOID */
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params->curveOID.len = oid.len;
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params->curveOID.data = (unsigned char *) PORT_ArenaAlloc(arena, oid.len);
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if (params->curveOID.data == NULL) goto cleanup;
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memcpy(params->curveOID.data, oid.data, oid.len);
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#if EC_DEBUG
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printf("Curve: %s\n", SECOID_FindOIDTagDescription(tag));
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#endif
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switch (tag) {
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#define GF2M_POPULATE \
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if ((params->name < ECCurve_noName) || \
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(params->name > ECCurve_pastLastCurve)) goto cleanup; \
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CHECK_OK(curveParams); \
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params->fieldID.size = curveParams->size; \
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params->fieldID.type = ec_field_GF2m; \
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CHECK_OK(hexString2SECItem(params->arena, ¶ms->fieldID.u.poly, \
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curveParams->irr)); \
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CHECK_OK(hexString2SECItem(params->arena, ¶ms->curve.a, \
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curveParams->curvea)); \
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CHECK_OK(hexString2SECItem(params->arena, ¶ms->curve.b, \
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curveParams->curveb)); \
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genenc[0] = '0'; \
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genenc[1] = '4'; \
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genenc[2] = '\0'; \
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CHECK_OK(strcat(genenc, curveParams->genx)); \
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CHECK_OK(strcat(genenc, curveParams->geny)); \
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CHECK_OK(hexString2SECItem(params->arena, ¶ms->base, \
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genenc)); \
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CHECK_OK(hexString2SECItem(params->arena, ¶ms->order, \
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curveParams->order)); \
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params->cofactor = curveParams->cofactor;
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case SEC_OID_ANSIX962_EC_C2PNB163V1:
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/* Populate params for c2pnb163v1 */
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params->name = ECCurve_X9_62_CHAR2_PNB163V1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2PNB163V2:
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/* Populate params for c2pnb163v2 */
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params->name = ECCurve_X9_62_CHAR2_PNB163V2;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2PNB163V3:
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/* Populate params for c2pnb163v3 */
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params->name = ECCurve_X9_62_CHAR2_PNB163V3;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2PNB176V1:
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/* Populate params for c2pnb176v1 */
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params->name = ECCurve_X9_62_CHAR2_PNB176V1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB191V1:
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/* Populate params for c2tnb191v1 */
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params->name = ECCurve_X9_62_CHAR2_TNB191V1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB191V2:
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/* Populate params for c2tnb191v2 */
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params->name = ECCurve_X9_62_CHAR2_TNB191V2;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB191V3:
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/* Populate params for c2tnb191v3 */
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params->name = ECCurve_X9_62_CHAR2_TNB191V3;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2PNB208W1:
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/* Populate params for c2pnb208w1 */
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params->name = ECCurve_X9_62_CHAR2_PNB208W1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB239V1:
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/* Populate params for c2tnb239v1 */
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params->name = ECCurve_X9_62_CHAR2_TNB239V1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB239V2:
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/* Populate params for c2tnb239v2 */
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params->name = ECCurve_X9_62_CHAR2_TNB239V2;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB239V3:
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/* Populate params for c2tnb239v3 */
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params->name = ECCurve_X9_62_CHAR2_TNB239V3;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2PNB272W1:
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/* Populate params for c2pnb272w1 */
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params->name = ECCurve_X9_62_CHAR2_PNB272W1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2PNB304W1:
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/* Populate params for c2pnb304w1 */
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params->name = ECCurve_X9_62_CHAR2_PNB304W1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB359V1:
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/* Populate params for c2tnb359v1 */
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params->name = ECCurve_X9_62_CHAR2_TNB359V1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2PNB368W1:
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/* Populate params for c2pnb368w1 */
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params->name = ECCurve_X9_62_CHAR2_PNB368W1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_ANSIX962_EC_C2TNB431R1:
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/* Populate params for c2tnb431r1 */
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params->name = ECCurve_X9_62_CHAR2_TNB431R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT113R1:
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/* Populate params for sect113r1 */
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params->name = ECCurve_SECG_CHAR2_113R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT113R2:
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/* Populate params for sect113r2 */
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params->name = ECCurve_SECG_CHAR2_113R2;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT131R1:
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/* Populate params for sect131r1 */
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params->name = ECCurve_SECG_CHAR2_131R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT131R2:
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/* Populate params for sect131r2 */
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params->name = ECCurve_SECG_CHAR2_131R2;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT163K1:
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/* Populate params for sect163k1
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* (the NIST K-163 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_163K1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT163R1:
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/* Populate params for sect163r1 */
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params->name = ECCurve_SECG_CHAR2_163R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT163R2:
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/* Populate params for sect163r2
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* (the NIST B-163 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_163R2;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT193R1:
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/* Populate params for sect193r1 */
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params->name = ECCurve_SECG_CHAR2_193R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT193R2:
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/* Populate params for sect193r2 */
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params->name = ECCurve_SECG_CHAR2_193R2;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT233K1:
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/* Populate params for sect233k1
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* (the NIST K-233 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_233K1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT233R1:
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/* Populate params for sect233r1
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* (the NIST B-233 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_233R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT239K1:
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/* Populate params for sect239k1 */
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params->name = ECCurve_SECG_CHAR2_239K1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT283K1:
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/* Populate params for sect283k1
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* (the NIST K-283 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_283K1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT283R1:
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/* Populate params for sect283r1
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* (the NIST B-283 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_283R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT409K1:
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/* Populate params for sect409k1
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* (the NIST K-409 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_409K1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT409R1:
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/* Populate params for sect409r1
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* (the NIST B-409 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_409R1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT571K1:
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/* Populate params for sect571k1
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* (the NIST K-571 curve)
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*/
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params->name = ECCurve_SECG_CHAR2_571K1;
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curveParams = ecCurve_map[params->name];
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GF2M_POPULATE
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break;
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case SEC_OID_SECG_EC_SECT571R1:
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/* Populate params for sect571r1
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|
* (the NIST B-571 curve)
|
|
*/
|
|
params->name = ECCurve_SECG_CHAR2_571R1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GF2M_POPULATE
|
|
break;
|
|
|
|
#define GFP_POPULATE \
|
|
if ((params->name < ECCurve_noName) || \
|
|
(params->name > ECCurve_pastLastCurve)) goto cleanup; \
|
|
CHECK_OK(curveParams); \
|
|
params->fieldID.size = curveParams->size; \
|
|
params->fieldID.type = ec_field_GFp; \
|
|
CHECK_OK(hexString2SECItem(params->arena, ¶ms->fieldID.u.prime, \
|
|
curveParams->irr)); \
|
|
CHECK_OK(hexString2SECItem(params->arena, ¶ms->curve.a, \
|
|
curveParams->curvea)); \
|
|
CHECK_OK(hexString2SECItem(params->arena, ¶ms->curve.b, \
|
|
curveParams->curveb)); \
|
|
genenc[0] = '0'; \
|
|
genenc[1] = '4'; \
|
|
genenc[2] = '\0'; \
|
|
CHECK_OK(strcat(genenc, curveParams->genx)); \
|
|
CHECK_OK(strcat(genenc, curveParams->geny)); \
|
|
CHECK_OK(hexString2SECItem(params->arena, ¶ms->base, \
|
|
genenc)); \
|
|
CHECK_OK(hexString2SECItem(params->arena, ¶ms->order, \
|
|
curveParams->order)); \
|
|
params->cofactor = curveParams->cofactor;
|
|
|
|
case SEC_OID_ANSIX962_EC_PRIME192V1:
|
|
/* Populate params for prime192v1 aka secp192r1
|
|
* (the NIST P-192 curve)
|
|
*/
|
|
params->name = ECCurve_X9_62_PRIME_192V1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_ANSIX962_EC_PRIME192V2:
|
|
/* Populate params for prime192v2 */
|
|
params->name = ECCurve_X9_62_PRIME_192V2;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_ANSIX962_EC_PRIME192V3:
|
|
/* Populate params for prime192v3 */
|
|
params->name = ECCurve_X9_62_PRIME_192V3;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_ANSIX962_EC_PRIME239V1:
|
|
/* Populate params for prime239v1 */
|
|
params->name = ECCurve_X9_62_PRIME_239V1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_ANSIX962_EC_PRIME239V2:
|
|
/* Populate params for prime239v2 */
|
|
params->name = ECCurve_X9_62_PRIME_239V2;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_ANSIX962_EC_PRIME239V3:
|
|
/* Populate params for prime239v3 */
|
|
params->name = ECCurve_X9_62_PRIME_239V3;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_ANSIX962_EC_PRIME256V1:
|
|
/* Populate params for prime256v1 aka secp256r1
|
|
* (the NIST P-256 curve)
|
|
*/
|
|
params->name = ECCurve_X9_62_PRIME_256V1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP112R1:
|
|
/* Populate params for secp112r1 */
|
|
params->name = ECCurve_SECG_PRIME_112R1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP112R2:
|
|
/* Populate params for secp112r2 */
|
|
params->name = ECCurve_SECG_PRIME_112R2;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP128R1:
|
|
/* Populate params for secp128r1 */
|
|
params->name = ECCurve_SECG_PRIME_128R1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP128R2:
|
|
/* Populate params for secp128r2 */
|
|
params->name = ECCurve_SECG_PRIME_128R2;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP160K1:
|
|
/* Populate params for secp160k1 */
|
|
params->name = ECCurve_SECG_PRIME_160K1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP160R1:
|
|
/* Populate params for secp160r1 */
|
|
params->name = ECCurve_SECG_PRIME_160R1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP160R2:
|
|
/* Populate params for secp160r1 */
|
|
params->name = ECCurve_SECG_PRIME_160R2;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP192K1:
|
|
/* Populate params for secp192k1 */
|
|
params->name = ECCurve_SECG_PRIME_192K1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP224K1:
|
|
/* Populate params for secp224k1 */
|
|
params->name = ECCurve_SECG_PRIME_224K1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP224R1:
|
|
/* Populate params for secp224r1
|
|
* (the NIST P-224 curve)
|
|
*/
|
|
params->name = ECCurve_SECG_PRIME_224R1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP256K1:
|
|
/* Populate params for secp256k1 */
|
|
params->name = ECCurve_SECG_PRIME_256K1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP384R1:
|
|
/* Populate params for secp384r1
|
|
* (the NIST P-384 curve)
|
|
*/
|
|
params->name = ECCurve_SECG_PRIME_384R1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
case SEC_OID_SECG_EC_SECP521R1:
|
|
/* Populate params for secp521r1
|
|
* (the NIST P-521 curve)
|
|
*/
|
|
params->name = ECCurve_SECG_PRIME_521R1;
|
|
curveParams = ecCurve_map[params->name];
|
|
GFP_POPULATE
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
};
|
|
|
|
cleanup:
|
|
if (!params->cofactor) {
|
|
PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
|
|
#if EC_DEBUG
|
|
printf("Unrecognized curve, returning NULL params\n");
|
|
#endif
|
|
return SECFailure;
|
|
}
|
|
|
|
return SECSuccess;
|
|
}
|
|
|
|
SECStatus
|
|
EC_DecodeParams(const SECItem *encodedParams, ECParams **ecparams)
|
|
{
|
|
PRArenaPool *arena;
|
|
ECParams *params;
|
|
SECStatus rv = SECFailure;
|
|
|
|
/* Initialize an arena for the ECParams structure */
|
|
if (!(arena = PORT_NewArena(NSS_FREEBL_DEFAULT_CHUNKSIZE)))
|
|
return SECFailure;
|
|
|
|
params = (ECParams *)PORT_ArenaZAlloc(arena, sizeof(ECParams));
|
|
if (!params) {
|
|
PORT_FreeArena(arena, PR_TRUE);
|
|
return SECFailure;
|
|
}
|
|
|
|
/* Copy the encoded params */
|
|
SECITEM_AllocItem(arena, &(params->DEREncoding),
|
|
encodedParams->len);
|
|
memcpy(params->DEREncoding.data, encodedParams->data, encodedParams->len);
|
|
|
|
/* Fill out the rest of the ECParams structure based on
|
|
* the encoded params
|
|
*/
|
|
rv = EC_FillParams(arena, encodedParams, params);
|
|
if (rv == SECFailure) {
|
|
PORT_FreeArena(arena, PR_TRUE);
|
|
return SECFailure;
|
|
} else {
|
|
*ecparams = params;;
|
|
return SECSuccess;
|
|
}
|
|
}
|
|
|
|
#endif /* NSS_ENABLE_ECC */
|