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Diffstat (limited to 'security/nss/lib/util/secalgid.c')
| -rw-r--r-- | security/nss/lib/util/secalgid.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/security/nss/lib/util/secalgid.c b/security/nss/lib/util/secalgid.c new file mode 100644 index 000000000..7b04941a1 --- /dev/null +++ b/security/nss/lib/util/secalgid.c @@ -0,0 +1,169 @@ +/* + * 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 Netscape security libraries. + * + * The Initial Developer of the Original Code is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1994-2000 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the + * terms of the GNU General Public License Version 2 or later (the + * "GPL"), in which case the provisions of the GPL are applicable + * instead of those above. If you wish to allow use of your + * version of this file only under the terms of the GPL and not to + * allow others to use your version of this file under the MPL, + * indicate your decision by deleting the provisions above and + * replace them with the notice and other provisions required by + * the GPL. If you do not delete the provisions above, a recipient + * may use your version of this file under either the MPL or the + * GPL. + */ + +#include "secoid.h" +#include "secder.h" /* XXX remove this when remove the DERTemplate */ +#include "secasn1.h" +#include "secitem.h" +#include "secerr.h" + +/* XXX Old template; want to expunge it eventually. */ +DERTemplate SECAlgorithmIDTemplate[] = { + { DER_SEQUENCE, + 0, NULL, sizeof(SECAlgorithmID) }, + { DER_OBJECT_ID, + offsetof(SECAlgorithmID,algorithm), }, + { DER_OPTIONAL | DER_ANY, + offsetof(SECAlgorithmID,parameters), }, + { 0, } +}; + +const SEC_ASN1Template SECOID_AlgorithmIDTemplate[] = { + { SEC_ASN1_SEQUENCE, + 0, NULL, sizeof(SECAlgorithmID) }, + { SEC_ASN1_OBJECT_ID, + offsetof(SECAlgorithmID,algorithm), }, + { SEC_ASN1_OPTIONAL | SEC_ASN1_ANY, + offsetof(SECAlgorithmID,parameters), }, + { 0, } +}; + +SECOidTag +SECOID_GetAlgorithmTag(SECAlgorithmID *id) +{ + if (id == NULL || id->algorithm.data == NULL) + return SEC_OID_UNKNOWN; + + return SECOID_FindOIDTag (&(id->algorithm)); +} + +SECStatus +SECOID_SetAlgorithmID(PRArenaPool *arena, SECAlgorithmID *id, SECOidTag which, + SECItem *params) +{ + SECOidData *oiddata; + PRBool add_null_param; + + oiddata = SECOID_FindOIDByTag(which); + if ( !oiddata ) { + PORT_SetError(SEC_ERROR_INVALID_ALGORITHM); + return SECFailure; + } + + if (SECITEM_CopyItem(arena, &id->algorithm, &oiddata->oid)) + return SECFailure; + + switch (which) { + case SEC_OID_MD2: + case SEC_OID_MD4: + case SEC_OID_MD5: + case SEC_OID_SHA1: + case SEC_OID_PKCS1_RSA_ENCRYPTION: + case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION: + case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION: + case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION: + case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION: + add_null_param = PR_TRUE; + break; + default: + add_null_param = PR_FALSE; + break; + } + + if (params) { + /* + * I am specifically *not* enforcing the following assertion + * (by following it up with an error and a return of failure) + * because I do not want to introduce any change in the current + * behavior. But I do want for us to notice if the following is + * ever true, because I do not think it should be so and probably + * signifies an error/bug somewhere. + */ + PORT_Assert(!add_null_param || (params->len == 2 + && params->data[0] == SEC_ASN1_NULL + && params->data[1] == 0)); + if (SECITEM_CopyItem(arena, &id->parameters, params)) { + return SECFailure; + } + } else { + /* + * Again, this is not considered an error. But if we assume + * that nobody tries to set the parameters field themselves + * (but always uses this routine to do that), then we should + * not hit the following assertion. Unless they forgot to zero + * the structure, which could also be a bad (and wrong) thing. + */ + PORT_Assert(id->parameters.data == NULL); + + if (add_null_param) { + (void) SECITEM_AllocItem(arena, &id->parameters, 2); + if (id->parameters.data == NULL) { + return SECFailure; + } + id->parameters.data[0] = SEC_ASN1_NULL; + id->parameters.data[1] = 0; + } + } + + return SECSuccess; +} + +SECStatus +SECOID_CopyAlgorithmID(PRArenaPool *arena, SECAlgorithmID *to, SECAlgorithmID *from) +{ + SECStatus rv; + + rv = SECITEM_CopyItem(arena, &to->algorithm, &from->algorithm); + if (rv) return rv; + rv = SECITEM_CopyItem(arena, &to->parameters, &from->parameters); + return rv; +} + +void SECOID_DestroyAlgorithmID(SECAlgorithmID *algid, PRBool freeit) +{ + SECITEM_FreeItem(&algid->parameters, PR_FALSE); + SECITEM_FreeItem(&algid->algorithm, PR_FALSE); + if(freeit == PR_TRUE) + PORT_Free(algid); +} + +SECComparison +SECOID_CompareAlgorithmID(SECAlgorithmID *a, SECAlgorithmID *b) +{ + SECComparison rv; + + rv = SECITEM_CompareItem(&a->algorithm, &b->algorithm); + if (rv) return rv; + rv = SECITEM_CompareItem(&a->parameters, &b->parameters); + return rv; +} |