diff options
Diffstat (limited to 'mozilla/security/nss/lib/freebl/ecl/ecl_curve.c')
| -rw-r--r-- | mozilla/security/nss/lib/freebl/ecl/ecl_curve.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/mozilla/security/nss/lib/freebl/ecl/ecl_curve.c b/mozilla/security/nss/lib/freebl/ecl/ecl_curve.c new file mode 100644 index 0000000..a0a7bd3 --- /dev/null +++ b/mozilla/security/nss/lib/freebl/ecl/ecl_curve.c @@ -0,0 +1,123 @@ +/* + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the elliptic curve math library. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 2003 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Douglas Stebila <douglas@stebila.ca>, Sun Microsystems Laboratories + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "ecl.h" +#include "ecl-curve.h" +#include "ecl-priv.h" +#include <stdlib.h> +#include <string.h> + +#define CHECK(func) if ((func) == NULL) { res = 0; goto CLEANUP; } + +/* Duplicates an ECCurveParams */ +ECCurveParams * +ECCurveParams_dup(const ECCurveParams * params) +{ + int res = 1; + ECCurveParams *ret = NULL; + + CHECK(ret = (ECCurveParams *) calloc(1, sizeof(ECCurveParams))); + if (params->text != NULL) { + CHECK(ret->text = strdup(params->text)); + } + ret->field = params->field; + ret->size = params->size; + if (params->irr != NULL) { + CHECK(ret->irr = strdup(params->irr)); + } + if (params->curvea != NULL) { + CHECK(ret->curvea = strdup(params->curvea)); + } + if (params->curveb != NULL) { + CHECK(ret->curveb = strdup(params->curveb)); + } + if (params->genx != NULL) { + CHECK(ret->genx = strdup(params->genx)); + } + if (params->geny != NULL) { + CHECK(ret->geny = strdup(params->geny)); + } + if (params->order != NULL) { + CHECK(ret->order = strdup(params->order)); + } + ret->cofactor = params->cofactor; + + CLEANUP: + if (res != 1) { + EC_FreeCurveParams(ret); + return NULL; + } + return ret; +} + +#undef CHECK + +/* Construct ECCurveParams from an ECCurveName */ +ECCurveParams * +EC_GetNamedCurveParams(const ECCurveName name) +{ + if ((name <= ECCurve_noName) || (ECCurve_pastLastCurve <= name) || + (ecCurve_map[name] == NULL)) { + return NULL; + } else { + return ECCurveParams_dup(ecCurve_map[name]); + } +} + +/* Free the memory allocated (if any) to an ECCurveParams object. */ +void +EC_FreeCurveParams(ECCurveParams * params) +{ + if (params == NULL) + return; + if (params->text != NULL) + free(params->text); + if (params->irr != NULL) + free(params->irr); + if (params->curvea != NULL) + free(params->curvea); + if (params->curveb != NULL) + free(params->curveb); + if (params->genx != NULL) + free(params->genx); + if (params->geny != NULL) + free(params->geny); + if (params->order != NULL) + free(params->order); + free(params); +} |