andre@0: /* This Source Code Form is subject to the terms of the Mozilla Public
andre@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
andre@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
andre@0: 
andre@0: #ifndef NSS_DISABLE_ECC
andre@0: 
andre@0: #ifdef FREEBL_NO_DEPEND
andre@0: #include "stubs.h"
andre@0: #endif
andre@0: 
andre@0: #include "blapi.h"
andre@0: #include "secoid.h"
andre@0: #include "secitem.h"
andre@0: #include "secerr.h"
andre@0: #include "ec.h"
andre@0: #include "ecl-curve.h"
andre@0: 
andre@0: #define CHECK_OK(func) if (func == NULL) goto cleanup
andre@0: #define CHECK_SEC_OK(func) if (SECSuccess != (rv = func)) goto cleanup
andre@0: 
andre@0: /*
andre@0:  * Initializes a SECItem from a hexadecimal string
andre@0:  *
andre@0:  * Warning: This function ignores leading 00's, so any leading 00's
andre@0:  * in the hexadecimal string must be optional.
andre@0:  */
andre@0: static SECItem *
andre@0: hexString2SECItem(PLArenaPool *arena, SECItem *item, const char *str)
andre@0: {
andre@0:     int i = 0;
andre@0:     int byteval = 0;
andre@0:     int tmp = PORT_Strlen(str);
andre@0: 
andre@0:     if ((tmp % 2) != 0) return NULL;
andre@0:     
andre@0:     /* skip leading 00's unless the hex string is "00" */
andre@0:     while ((tmp > 2) && (str[0] == '0') && (str[1] == '0')) {
andre@0:         str += 2;
andre@0:         tmp -= 2;
andre@0:     }
andre@0: 
andre@0:     item->data = (unsigned char *) PORT_ArenaAlloc(arena, tmp/2);
andre@0:     if (item->data == NULL) return NULL;
andre@0:     item->len = tmp/2;
andre@0: 
andre@0:     while (str[i]) {
andre@0:         if ((str[i] >= '0') && (str[i] <= '9'))
andre@0: 	    tmp = str[i] - '0';
andre@0: 	else if ((str[i] >= 'a') && (str[i] <= 'f'))
andre@0: 	    tmp = str[i] - 'a' + 10;
andre@0: 	else if ((str[i] >= 'A') && (str[i] <= 'F'))
andre@0: 	    tmp = str[i] - 'A' + 10;
andre@0: 	else
andre@0: 	    return NULL;
andre@0: 
andre@0: 	byteval = byteval * 16 + tmp;
andre@0: 	if ((i % 2) != 0) {
andre@0: 	    item->data[i/2] = byteval;
andre@0: 	    byteval = 0;
andre@0: 	}
andre@0: 	i++;
andre@0:     }
andre@0: 
andre@0:     return item;
andre@0: }
andre@0: 
andre@0: /* Copy all of the fields from srcParams into dstParams
andre@0:  */
andre@0: SECStatus
andre@0: EC_CopyParams(PLArenaPool *arena, ECParams *dstParams,
andre@0: 	      const ECParams *srcParams)
andre@0: {
andre@0:     SECStatus rv = SECFailure;
andre@0: 
andre@0:     dstParams->arena = arena;
andre@0:     dstParams->type = srcParams->type;
andre@0:     dstParams->fieldID.size = srcParams->fieldID.size;
andre@0:     dstParams->fieldID.type = srcParams->fieldID.type;
andre@0:     if (srcParams->fieldID.type == ec_field_GFp) {
andre@0: 	CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->fieldID.u.prime,
andre@0: 	    &srcParams->fieldID.u.prime));
andre@0:     } else {
andre@0: 	CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->fieldID.u.poly,
andre@0: 	    &srcParams->fieldID.u.poly));
andre@0:     }
andre@0:     dstParams->fieldID.k1 = srcParams->fieldID.k1;
andre@0:     dstParams->fieldID.k2 = srcParams->fieldID.k2;
andre@0:     dstParams->fieldID.k3 = srcParams->fieldID.k3;
andre@0:     CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curve.a,
andre@0: 	&srcParams->curve.a));
andre@0:     CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curve.b,
andre@0: 	&srcParams->curve.b));
andre@0:     CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curve.seed,
andre@0: 	&srcParams->curve.seed));
andre@0:     CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->base,
andre@0: 	&srcParams->base));
andre@0:     CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->order,
andre@0: 	&srcParams->order));
andre@0:     CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->DEREncoding,
andre@0: 	&srcParams->DEREncoding));
andre@0: 	dstParams->name = srcParams->name;
andre@0:     CHECK_SEC_OK(SECITEM_CopyItem(arena, &dstParams->curveOID,
andre@0:  	&srcParams->curveOID));
andre@0:     dstParams->cofactor = srcParams->cofactor;
andre@0: 
andre@0:     return SECSuccess;
andre@0: 
andre@0: cleanup:
andre@0:     return SECFailure;
andre@0: }
andre@0: 
andre@0: static SECStatus
andre@0: gf_populate_params(ECCurveName name, ECFieldType field_type, ECParams *params)
andre@0: {
andre@0:     SECStatus rv = SECFailure;
andre@0:     const ECCurveParams *curveParams;
andre@0:     /* 2 ['0'+'4'] + MAX_ECKEY_LEN * 2 [x,y] * 2 [hex string] + 1 ['\0'] */
andre@0:     char genenc[3 + 2 * 2 * MAX_ECKEY_LEN];
andre@0: 
andre@0:     if ((name < ECCurve_noName) || (name > ECCurve_pastLastCurve)) goto cleanup;
andre@0:     params->name = name;
andre@0:     curveParams = ecCurve_map[params->name];
andre@0:     CHECK_OK(curveParams);
andre@0:     params->fieldID.size = curveParams->size;
andre@0:     params->fieldID.type = field_type;
andre@0:     if (field_type == ec_field_GFp) {
andre@0: 	CHECK_OK(hexString2SECItem(params->arena, &params->fieldID.u.prime, 
andre@0: 	    curveParams->irr));
andre@0:     } else {
andre@0: 	CHECK_OK(hexString2SECItem(params->arena, &params->fieldID.u.poly, 
andre@0: 	    curveParams->irr));
andre@0:     }
andre@0:     CHECK_OK(hexString2SECItem(params->arena, &params->curve.a, 
andre@0: 	curveParams->curvea));
andre@0:     CHECK_OK(hexString2SECItem(params->arena, &params->curve.b, 
andre@0: 	curveParams->curveb));
andre@0:     genenc[0] = '0';
andre@0:     genenc[1] = '4';
andre@0:     genenc[2] = '\0';
andre@0:     strcat(genenc, curveParams->genx);
andre@0:     strcat(genenc, curveParams->geny);
andre@0:     CHECK_OK(hexString2SECItem(params->arena, &params->base, genenc));
andre@0:     CHECK_OK(hexString2SECItem(params->arena, &params->order, 
andre@0:     	curveParams->order));
andre@0:     params->cofactor = curveParams->cofactor;
andre@0: 
andre@0:     rv = SECSuccess;
andre@0: 
andre@0: cleanup:
andre@0:     return rv;
andre@0: }
andre@0: 
andre@0: SECStatus
andre@0: EC_FillParams(PLArenaPool *arena, const SECItem *encodedParams,
andre@0:     ECParams *params)
andre@0: {
andre@0:     SECStatus rv = SECFailure;
andre@0:     SECOidTag tag;
andre@0:     SECItem oid = { siBuffer, NULL, 0};
andre@0: 
andre@0: #if EC_DEBUG
andre@0:     int i;
andre@0: 
andre@0:     printf("Encoded params in EC_DecodeParams: ");
andre@0:     for (i = 0; i < encodedParams->len; i++) {
andre@0: 	    printf("%02x:", encodedParams->data[i]);
andre@0:     }
andre@0:     printf("\n");
andre@0: #endif
andre@0: 
andre@0:     if ((encodedParams->len != ANSI_X962_CURVE_OID_TOTAL_LEN) &&
andre@0: 	(encodedParams->len != SECG_CURVE_OID_TOTAL_LEN)) {
andre@0: 	    PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
andre@0: 	    return SECFailure;
andre@0:     };
andre@0: 
andre@0:     oid.len = encodedParams->len - 2;
andre@0:     oid.data = encodedParams->data + 2;
andre@0:     if ((encodedParams->data[0] != SEC_ASN1_OBJECT_ID) ||
andre@0: 	((tag = SECOID_FindOIDTag(&oid)) == SEC_OID_UNKNOWN)) { 
andre@0: 	    PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
andre@0: 	    return SECFailure;
andre@0:     }
andre@0: 
andre@0:     params->arena = arena;
andre@0:     params->cofactor = 0;
andre@0:     params->type = ec_params_named;
andre@0:     params->name = ECCurve_noName;
andre@0: 
andre@0:     /* For named curves, fill out curveOID */
andre@0:     params->curveOID.len = oid.len;
andre@0:     params->curveOID.data = (unsigned char *) PORT_ArenaAlloc(arena, oid.len);
andre@0:     if (params->curveOID.data == NULL) goto cleanup;
andre@0:     memcpy(params->curveOID.data, oid.data, oid.len);
andre@0: 
andre@0: #if EC_DEBUG
andre@0:     printf("Curve: %s\n", SECOID_FindOIDTagDescription(tag));
andre@0: #endif
andre@0: 
andre@0:     switch (tag) {
andre@0: 
andre@0:     /* Binary curves */
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB163V1:
andre@0: 	/* Populate params for c2pnb163v1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB163V1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB163V2:
andre@0: 	/* Populate params for c2pnb163v2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB163V2, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB163V3:
andre@0: 	/* Populate params for c2pnb163v3 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB163V3, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB176V1:
andre@0: 	/* Populate params for c2pnb176v1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB176V1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB191V1:
andre@0: 	/* Populate params for c2tnb191v1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB191V1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB191V2:
andre@0: 	/* Populate params for c2tnb191v2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB191V2, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB191V3:
andre@0: 	/* Populate params for c2tnb191v3 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB191V3, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB208W1:
andre@0: 	/* Populate params for c2pnb208w1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB208W1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB239V1:
andre@0: 	/* Populate params for c2tnb239v1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB239V1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB239V2:
andre@0: 	/* Populate params for c2tnb239v2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB239V2, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB239V3:
andre@0: 	/* Populate params for c2tnb239v3 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB239V3, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB272W1:
andre@0: 	/* Populate params for c2pnb272w1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB272W1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB304W1:
andre@0: 	/* Populate params for c2pnb304w1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB304W1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB359V1:
andre@0: 	/* Populate params for c2tnb359v1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB359V1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2PNB368W1:
andre@0: 	/* Populate params for c2pnb368w1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_PNB368W1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_C2TNB431R1:
andre@0: 	/* Populate params for c2tnb431r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_CHAR2_TNB431R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 	
andre@0:     case SEC_OID_SECG_EC_SECT113R1:
andre@0: 	/* Populate params for sect113r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_113R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT113R2:
andre@0: 	/* Populate params for sect113r2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_113R2, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT131R1:
andre@0: 	/* Populate params for sect131r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_131R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT131R2:
andre@0: 	/* Populate params for sect131r2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_131R2, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT163K1:
andre@0: 	/* Populate params for sect163k1
andre@0: 	 * (the NIST K-163 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_163K1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT163R1:
andre@0: 	/* Populate params for sect163r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_163R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT163R2:
andre@0: 	/* Populate params for sect163r2
andre@0: 	 * (the NIST B-163 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_163R2, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT193R1:
andre@0: 	/* Populate params for sect193r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_193R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT193R2:
andre@0: 	/* Populate params for sect193r2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_193R2, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT233K1:
andre@0: 	/* Populate params for sect233k1
andre@0: 	 * (the NIST K-233 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_233K1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT233R1:
andre@0: 	/* Populate params for sect233r1
andre@0: 	 * (the NIST B-233 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_233R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT239K1:
andre@0: 	/* Populate params for sect239k1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_239K1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT283K1:
andre@0:         /* Populate params for sect283k1
andre@0: 	 * (the NIST K-283 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_283K1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT283R1:
andre@0: 	/* Populate params for sect283r1
andre@0: 	 * (the NIST B-283 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_283R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT409K1:
andre@0: 	/* Populate params for sect409k1
andre@0: 	 * (the NIST K-409 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_409K1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT409R1:
andre@0: 	/* Populate params for sect409r1
andre@0: 	 * (the NIST B-409 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_409R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT571K1:
andre@0: 	/* Populate params for sect571k1
andre@0: 	 * (the NIST K-571 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_571K1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECT571R1:
andre@0: 	/* Populate params for sect571r1
andre@0: 	 * (the NIST B-571 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_CHAR2_571R1, ec_field_GF2m,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     /* Prime curves */
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_PRIME192V1:
andre@0: 	/* Populate params for prime192v1 aka secp192r1 
andre@0: 	 * (the NIST P-192 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_192V1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_PRIME192V2:
andre@0: 	/* Populate params for prime192v2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_192V2, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_PRIME192V3:
andre@0: 	/* Populate params for prime192v3 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_192V3, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 	
andre@0:     case SEC_OID_ANSIX962_EC_PRIME239V1:
andre@0: 	/* Populate params for prime239v1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_239V1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_PRIME239V2:
andre@0: 	/* Populate params for prime239v2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_239V2, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_PRIME239V3:
andre@0: 	/* Populate params for prime239v3 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_239V3, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_ANSIX962_EC_PRIME256V1:
andre@0: 	/* Populate params for prime256v1 aka secp256r1
andre@0: 	 * (the NIST P-256 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_X9_62_PRIME_256V1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP112R1:
andre@0:         /* Populate params for secp112r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_112R1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP112R2:
andre@0:         /* Populate params for secp112r2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_112R2, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP128R1:
andre@0:         /* Populate params for secp128r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_128R1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP128R2:
andre@0:         /* Populate params for secp128r2 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_128R2, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 	
andre@0:     case SEC_OID_SECG_EC_SECP160K1:
andre@0:         /* Populate params for secp160k1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_160K1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP160R1:
andre@0:         /* Populate params for secp160r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_160R1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP160R2:
andre@0: 	/* Populate params for secp160r1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_160R2, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP192K1:
andre@0: 	/* Populate params for secp192k1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_192K1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP224K1:
andre@0: 	/* Populate params for secp224k1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_224K1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP224R1:
andre@0: 	/* Populate params for secp224r1 
andre@0: 	 * (the NIST P-224 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_224R1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP256K1:
andre@0: 	/* Populate params for secp256k1 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_256K1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP384R1:
andre@0: 	/* Populate params for secp384r1
andre@0: 	 * (the NIST P-384 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_384R1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     case SEC_OID_SECG_EC_SECP521R1:
andre@0: 	/* Populate params for secp521r1 
andre@0: 	 * (the NIST P-521 curve)
andre@0: 	 */
andre@0: 	CHECK_SEC_OK( gf_populate_params(ECCurve_SECG_PRIME_521R1, ec_field_GFp,
andre@0: 	    params) );
andre@0: 	break;
andre@0: 
andre@0:     default:
andre@0: 	break;
andre@0:     };
andre@0: 
andre@0: cleanup:
andre@0:     if (!params->cofactor) {
andre@0: 	PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
andre@0: #if EC_DEBUG
andre@0: 	printf("Unrecognized curve, returning NULL params\n");
andre@0: #endif
andre@0:     }
andre@0: 
andre@0:     return rv;
andre@0: }
andre@0: 
andre@0: SECStatus
andre@0: EC_DecodeParams(const SECItem *encodedParams, ECParams **ecparams)
andre@0: {
andre@0:     PLArenaPool *arena;
andre@0:     ECParams *params;
andre@0:     SECStatus rv = SECFailure;
andre@0: 
andre@0:     /* Initialize an arena for the ECParams structure */
andre@0:     if (!(arena = PORT_NewArena(NSS_FREEBL_DEFAULT_CHUNKSIZE)))
andre@0: 	return SECFailure;
andre@0: 
andre@0:     params = (ECParams *)PORT_ArenaZAlloc(arena, sizeof(ECParams));
andre@0:     if (!params) {
andre@0: 	PORT_FreeArena(arena, PR_TRUE);
andre@0: 	return SECFailure;
andre@0:     }
andre@0: 
andre@0:     /* Copy the encoded params */
andre@0:     SECITEM_AllocItem(arena, &(params->DEREncoding),
andre@0: 	encodedParams->len);
andre@0:     memcpy(params->DEREncoding.data, encodedParams->data, encodedParams->len);
andre@0: 
andre@0:     /* Fill out the rest of the ECParams structure based on 
andre@0:      * the encoded params 
andre@0:      */
andre@0:     rv = EC_FillParams(arena, encodedParams, params);
andre@0:     if (rv == SECFailure) {
andre@0: 	PORT_FreeArena(arena, PR_TRUE);	
andre@0: 	return SECFailure;
andre@0:     } else {
andre@0: 	*ecparams = params;;
andre@0: 	return SECSuccess;
andre@0:     }
andre@0: }
andre@0: 
andre@0: #endif /* NSS_DISABLE_ECC */