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lightning-sunbird  0.9+nobinonly
nsskea.c
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00001 /*
00002  * Return SSLKEAType derived from cert's Public Key algorithm info.
00003  *
00004  * ***** BEGIN LICENSE BLOCK *****
00005  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00006  *
00007  * The contents of this file are subject to the Mozilla Public License Version
00008  * 1.1 (the "License"); you may not use this file except in compliance with
00009  * the License. You may obtain a copy of the License at
00010  * http://www.mozilla.org/MPL/
00011  *
00012  * Software distributed under the License is distributed on an "AS IS" basis,
00013  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00014  * for the specific language governing rights and limitations under the
00015  * License.
00016  *
00017  * The Original Code is the Netscape security libraries.
00018  *
00019  * The Initial Developer of the Original Code is
00020  * Netscape Communications Corporation.
00021  * Portions created by the Initial Developer are Copyright (C) 1994-2000
00022  * the Initial Developer. All Rights Reserved.
00023  *
00024  * Contributor(s):
00025  *   Dr Vipul Gupta <vipul.gupta@sun.com>, Sun Microsystems Laboratories
00026  *
00027  * Alternatively, the contents of this file may be used under the terms of
00028  * either the GNU General Public License Version 2 or later (the "GPL"), or
00029  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00030  * in which case the provisions of the GPL or the LGPL are applicable instead
00031  * of those above. If you wish to allow use of your version of this file only
00032  * under the terms of either the GPL or the LGPL, and not to allow others to
00033  * use your version of this file under the terms of the MPL, indicate your
00034  * decision by deleting the provisions above and replace them with the notice
00035  * and other provisions required by the GPL or the LGPL. If you do not delete
00036  * the provisions above, a recipient may use your version of this file under
00037  * the terms of any one of the MPL, the GPL or the LGPL.
00038  *
00039  * ***** END LICENSE BLOCK ***** */
00040 /* $Id: nsskea.c,v 1.7 2005/08/16 03:42:26 nelsonb%netscape.com Exp $ */
00041 
00042 #include "cert.h"
00043 #include "ssl.h"     /* for SSLKEAType */
00044 #include "secoid.h"
00045 
00046 SSLKEAType
00047 NSS_FindCertKEAType(CERTCertificate * cert)
00048 {
00049   SSLKEAType keaType = kt_null; 
00050   int tag;
00051   
00052   if (!cert) goto loser;
00053   
00054   tag = SECOID_GetAlgorithmTag(&(cert->subjectPublicKeyInfo.algorithm));
00055   
00056   switch (tag) {
00057   case SEC_OID_X500_RSA_ENCRYPTION:
00058   case SEC_OID_PKCS1_RSA_ENCRYPTION:
00059     keaType = kt_rsa;
00060     break;
00061   case SEC_OID_X942_DIFFIE_HELMAN_KEY:
00062     keaType = kt_dh;
00063     break;
00064 #ifdef NSS_ENABLE_ECC
00065   case SEC_OID_ANSIX962_EC_PUBLIC_KEY:
00066     keaType = kt_ecdh;
00067     break;
00068 #endif /* NSS_ENABLE_ECC */
00069   default:
00070     keaType = kt_null;
00071   }
00072   
00073  loser:
00074   
00075   return keaType;
00076 
00077 }
00078