1/* 2 * The contents of this file are subject to the Mozilla Public 3 * License Version 1.1 (the "License"); you may not use this file 4 * except in compliance with the License. You may obtain a copy of 5 * the License at http://www.mozilla.org/MPL/ 6 * 7 * Software distributed under the License is distributed on an "AS 8 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 9 * implied. See the License for the specific language governing 10 * rights and limitations under the License. 11 * 12 * The Original Code is the Netscape security libraries. 13 * 14 * The Initial Developer of the Original Code is Netscape 15 * Communications Corporation. Portions created by Netscape are 16 * Copyright (C) 1994-2000 Netscape Communications Corporation. All 17 * Rights Reserved. 18 * 19 * Contributor(s): 20 * 21 * Alternatively, the contents of this file may be used under the 22 * terms of the GNU General Public License Version 2 or later (the 23 * "GPL"), in which case the provisions of the GPL are applicable 24 * instead of those above. If you wish to allow use of your 25 * version of this file only under the terms of the GPL and not to 26 * allow others to use your version of this file under the MPL, 27 * indicate your decision by deleting the provisions above and 28 * replace them with the notice and other provisions required by 29 * the GPL. If you do not delete the provisions above, a recipient 30 * may use your version of this file under either the MPL or the 31 * GPL. 32 */ 33 34#include "secoid.h" 35#include "secitem.h" 36#include <security_asn1/secasn1.h> 37#include <security_asn1/secerr.h> 38 39const SecAsn1Template SECOID_AlgorithmIDTemplate[] = { 40 { SEC_ASN1_SEQUENCE, 41 0, NULL, sizeof(SECAlgorithmID) }, 42 { SEC_ASN1_OBJECT_ID, 43 offsetof(SECAlgorithmID,algorithm), }, 44 { SEC_ASN1_OPTIONAL | SEC_ASN1_ANY, 45 offsetof(SECAlgorithmID,parameters), }, 46 { 0 } 47}; 48 49SECOidTag 50SECOID_GetAlgorithmTag(const SECAlgorithmID *id) 51{ 52 if (id == NULL || id->algorithm.Data == NULL) 53 return SEC_OID_UNKNOWN; 54 55 return SECOID_FindOIDTag (&(id->algorithm)); 56} 57 58SECStatus 59SECOID_SetAlgorithmID(PRArenaPool *arena, SECAlgorithmID *id, SECOidTag which, 60 SECItem *params) 61{ 62 SECOidData *oiddata; 63 Boolean add_null_param; 64 65 oiddata = SECOID_FindOIDByTag(which); 66 if ( !oiddata ) 67 { 68 PORT_SetError(SEC_ERROR_INVALID_ALGORITHM); 69 return SECFailure; 70 } 71 72 if (SECITEM_CopyItem(arena, &id->algorithm, &oiddata->oid)) 73 return SECFailure; 74 75 switch (which) 76 { 77 case SEC_OID_MD2: 78 case SEC_OID_MD4: 79 case SEC_OID_MD5: 80 case SEC_OID_SHA1: 81 case SEC_OID_SHA256: 82 case SEC_OID_SHA384: 83 case SEC_OID_SHA512: 84 case SEC_OID_PKCS1_RSA_ENCRYPTION: 85 case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION: 86 case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION: 87 case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION: 88 case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION: 89 case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION: 90 case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION: 91 case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION: 92 add_null_param = PR_TRUE; 93 break; 94 default: 95 add_null_param = PR_FALSE; 96 break; 97 } 98 99 if (params) { 100 /* 101 * I am specifically *not* enforcing the following assertion 102 * (by following it up with an error and a return of failure) 103 * because I do not want to introduce any change in the current 104 * behavior. But I do want for us to notice if the following is 105 * ever true, because I do not think it should be so and probably 106 * signifies an error/bug somewhere. 107 * This assertion removed Sep 9 2008 by dmitch, we really do need 108 * to be able to do this for an odd SEC_OID_EC_PUBLIC_KEY case. 109 * 110 PORT_Assert(!add_null_param || (params->Length == 2 111 && params->Data[0] == SEC_ASN1_NULL 112 && params->Data[1] == 0)); 113 */ 114 if (SECITEM_CopyItem(arena, &id->parameters, params)) { 115 return SECFailure; 116 } 117 } else { 118 /* 119 * Again, this is not considered an error. But if we assume 120 * that nobody tries to set the parameters field themselves 121 * (but always uses this routine to do that), then we should 122 * not hit the following assertion. Unless they forgot to zero 123 * the structure, which could also be a bad (and wrong) thing. 124 */ 125 PORT_Assert(id->parameters.Data == NULL); 126 127 if (add_null_param) { 128 (void) SECITEM_AllocItem(arena, &id->parameters, 2); 129 if (id->parameters.Data == NULL) { 130 return SECFailure; 131 } 132 id->parameters.Data[0] = SEC_ASN1_NULL; 133 id->parameters.Data[1] = 0; 134 } 135 } 136 137 return SECSuccess; 138} 139 140SECStatus 141SECOID_CopyAlgorithmID(PRArenaPool *arena, SECAlgorithmID *to, const SECAlgorithmID *from) 142{ 143 SECStatus rv; 144 145 rv = SECITEM_CopyItem(arena, &to->algorithm, &from->algorithm); 146 if (rv) return rv; 147 rv = SECITEM_CopyItem(arena, &to->parameters, &from->parameters); 148 return rv; 149} 150 151void SECOID_DestroyAlgorithmID(SECAlgorithmID *algid, Boolean freeit) 152{ 153 SECITEM_FreeItem(&algid->parameters, PR_FALSE); 154 SECITEM_FreeItem(&algid->algorithm, PR_FALSE); 155 if(freeit == PR_TRUE) 156 PORT_Free(algid); 157} 158 159SECComparison 160SECOID_CompareAlgorithmID(const SECAlgorithmID *a, const SECAlgorithmID *b) 161{ 162 SECComparison rv; 163 164 rv = SECITEM_CompareItem(&a->algorithm, &b->algorithm); 165 if (rv) return rv; 166 rv = SECITEM_CompareItem(&a->parameters, &b->parameters); 167 return rv; 168} 169 170/* This functions simply returns the address of the above-declared template. */ 171SEC_ASN1_CHOOSER_IMPLEMENT(SECOID_AlgorithmIDTemplate) 172 173