1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/nss/lib/util/secalgid.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,128 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "secoid.h"
1.9 +#include "secder.h" /* XXX remove this when remove the DERTemplate */
1.10 +#include "secasn1.h"
1.11 +#include "secitem.h"
1.12 +#include "secerr.h"
1.13 +
1.14 +SECOidTag
1.15 +SECOID_GetAlgorithmTag(const SECAlgorithmID *id)
1.16 +{
1.17 + if (id == NULL || id->algorithm.data == NULL)
1.18 + return SEC_OID_UNKNOWN;
1.19 +
1.20 + return SECOID_FindOIDTag (&(id->algorithm));
1.21 +}
1.22 +
1.23 +SECStatus
1.24 +SECOID_SetAlgorithmID(PLArenaPool *arena, SECAlgorithmID *id, SECOidTag which,
1.25 + SECItem *params)
1.26 +{
1.27 + SECOidData *oiddata;
1.28 + PRBool add_null_param;
1.29 +
1.30 + oiddata = SECOID_FindOIDByTag(which);
1.31 + if ( !oiddata ) {
1.32 + PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
1.33 + return SECFailure;
1.34 + }
1.35 +
1.36 + if (SECITEM_CopyItem(arena, &id->algorithm, &oiddata->oid))
1.37 + return SECFailure;
1.38 +
1.39 + switch (which) {
1.40 + case SEC_OID_MD2:
1.41 + case SEC_OID_MD4:
1.42 + case SEC_OID_MD5:
1.43 + case SEC_OID_SHA1:
1.44 + case SEC_OID_SHA224:
1.45 + case SEC_OID_SHA256:
1.46 + case SEC_OID_SHA384:
1.47 + case SEC_OID_SHA512:
1.48 + case SEC_OID_PKCS1_RSA_ENCRYPTION:
1.49 + case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION:
1.50 + case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION:
1.51 + case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION:
1.52 + case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION:
1.53 + case SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION:
1.54 + case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION:
1.55 + case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION:
1.56 + case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION:
1.57 + add_null_param = PR_TRUE;
1.58 + break;
1.59 + default:
1.60 + add_null_param = PR_FALSE;
1.61 + break;
1.62 + }
1.63 +
1.64 + if (params) {
1.65 + /*
1.66 + * I am specifically *not* enforcing the following assertion
1.67 + * (by following it up with an error and a return of failure)
1.68 + * because I do not want to introduce any change in the current
1.69 + * behavior. But I do want for us to notice if the following is
1.70 + * ever true, because I do not think it should be so and probably
1.71 + * signifies an error/bug somewhere.
1.72 + */
1.73 + PORT_Assert(!add_null_param || (params->len == 2
1.74 + && params->data[0] == SEC_ASN1_NULL
1.75 + && params->data[1] == 0));
1.76 + if (SECITEM_CopyItem(arena, &id->parameters, params)) {
1.77 + return SECFailure;
1.78 + }
1.79 + } else {
1.80 + /*
1.81 + * Again, this is not considered an error. But if we assume
1.82 + * that nobody tries to set the parameters field themselves
1.83 + * (but always uses this routine to do that), then we should
1.84 + * not hit the following assertion. Unless they forgot to zero
1.85 + * the structure, which could also be a bad (and wrong) thing.
1.86 + */
1.87 + PORT_Assert(id->parameters.data == NULL);
1.88 +
1.89 + if (add_null_param) {
1.90 + (void) SECITEM_AllocItem(arena, &id->parameters, 2);
1.91 + if (id->parameters.data == NULL) {
1.92 + return SECFailure;
1.93 + }
1.94 + id->parameters.data[0] = SEC_ASN1_NULL;
1.95 + id->parameters.data[1] = 0;
1.96 + }
1.97 + }
1.98 +
1.99 + return SECSuccess;
1.100 +}
1.101 +
1.102 +SECStatus
1.103 +SECOID_CopyAlgorithmID(PLArenaPool *arena, SECAlgorithmID *to,
1.104 + const SECAlgorithmID *from)
1.105 +{
1.106 + SECStatus rv;
1.107 +
1.108 + rv = SECITEM_CopyItem(arena, &to->algorithm, &from->algorithm);
1.109 + if (rv) return rv;
1.110 + rv = SECITEM_CopyItem(arena, &to->parameters, &from->parameters);
1.111 + return rv;
1.112 +}
1.113 +
1.114 +void SECOID_DestroyAlgorithmID(SECAlgorithmID *algid, PRBool freeit)
1.115 +{
1.116 + SECITEM_FreeItem(&algid->parameters, PR_FALSE);
1.117 + SECITEM_FreeItem(&algid->algorithm, PR_FALSE);
1.118 + if(freeit == PR_TRUE)
1.119 + PORT_Free(algid);
1.120 +}
1.121 +
1.122 +SECComparison
1.123 +SECOID_CompareAlgorithmID(SECAlgorithmID *a, SECAlgorithmID *b)
1.124 +{
1.125 + SECComparison rv;
1.126 +
1.127 + rv = SECITEM_CompareItem(&a->algorithm, &b->algorithm);
1.128 + if (rv) return rv;
1.129 + rv = SECITEM_CompareItem(&a->parameters, &b->parameters);
1.130 + return rv;
1.131 +}
