зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
4.0 KiB
C
130 строки
4.0 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "secoid.h"
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#include "secder.h" /* XXX remove this when remove the DERTemplate */
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#include "secasn1.h"
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#include "secitem.h"
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#include "secerr.h"
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SECOidTag
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SECOID_GetAlgorithmTag(const SECAlgorithmID *id)
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{
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if (id == NULL || id->algorithm.data == NULL)
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return SEC_OID_UNKNOWN;
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return SECOID_FindOIDTag(&(id->algorithm));
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}
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SECStatus
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SECOID_SetAlgorithmID(PLArenaPool *arena, SECAlgorithmID *id, SECOidTag which,
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SECItem *params)
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{
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SECOidData *oiddata;
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PRBool add_null_param;
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oiddata = SECOID_FindOIDByTag(which);
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if (!oiddata) {
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PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
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return SECFailure;
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}
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if (SECITEM_CopyItem(arena, &id->algorithm, &oiddata->oid))
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return SECFailure;
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switch (which) {
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case SEC_OID_MD2:
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case SEC_OID_MD4:
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case SEC_OID_MD5:
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case SEC_OID_SHA1:
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case SEC_OID_SHA224:
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case SEC_OID_SHA256:
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case SEC_OID_SHA384:
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case SEC_OID_SHA512:
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case SEC_OID_PKCS1_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION:
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case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION:
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add_null_param = PR_TRUE;
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break;
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default:
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add_null_param = PR_FALSE;
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break;
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}
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if (params) {
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/*
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* I am specifically *not* enforcing the following assertion
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* (by following it up with an error and a return of failure)
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* because I do not want to introduce any change in the current
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* behavior. But I do want for us to notice if the following is
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* ever true, because I do not think it should be so and probably
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* signifies an error/bug somewhere.
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*/
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PORT_Assert(!add_null_param || (params->len == 2 && params->data[0] == SEC_ASN1_NULL && params->data[1] == 0));
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if (SECITEM_CopyItem(arena, &id->parameters, params)) {
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return SECFailure;
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}
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} else {
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/*
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* Again, this is not considered an error. But if we assume
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* that nobody tries to set the parameters field themselves
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* (but always uses this routine to do that), then we should
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* not hit the following assertion. Unless they forgot to zero
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* the structure, which could also be a bad (and wrong) thing.
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*/
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PORT_Assert(id->parameters.data == NULL);
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if (add_null_param) {
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(void)SECITEM_AllocItem(arena, &id->parameters, 2);
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if (id->parameters.data == NULL) {
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return SECFailure;
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}
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id->parameters.data[0] = SEC_ASN1_NULL;
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id->parameters.data[1] = 0;
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}
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}
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return SECSuccess;
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}
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SECStatus
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SECOID_CopyAlgorithmID(PLArenaPool *arena, SECAlgorithmID *to,
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const SECAlgorithmID *from)
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{
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SECStatus rv;
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rv = SECITEM_CopyItem(arena, &to->algorithm, &from->algorithm);
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if (rv)
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return rv;
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rv = SECITEM_CopyItem(arena, &to->parameters, &from->parameters);
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return rv;
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}
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void
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SECOID_DestroyAlgorithmID(SECAlgorithmID *algid, PRBool freeit)
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{
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SECITEM_FreeItem(&algid->parameters, PR_FALSE);
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SECITEM_FreeItem(&algid->algorithm, PR_FALSE);
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if (freeit == PR_TRUE)
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PORT_Free(algid);
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}
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SECComparison
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SECOID_CompareAlgorithmID(SECAlgorithmID *a, SECAlgorithmID *b)
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{
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SECComparison rv;
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rv = SECITEM_CompareItem(&a->algorithm, &b->algorithm);
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if (rv)
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return rv;
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rv = SECITEM_CompareItem(&a->parameters, &b->parameters);
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return rv;
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}
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