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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*/
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <LongBow/runtime.h>
#include <parc/algol/parc_Object.h>
#include <parc/security/parc_Signature.h>
#include <parc/algol/parc_Memory.h>
struct parc_signature {
PARCSigningAlgorithm signingAlgorithm;
PARCCryptoHashType hashType;
PARCBuffer *signatureBits;
};
static void
_parcSignature_FinalRelease(PARCSignature **signatureP)
{
parcBuffer_Release(&(*signatureP)->signatureBits);
}
parcObject_ExtendPARCObject(PARCSignature, _parcSignature_FinalRelease, NULL, NULL, NULL, NULL, NULL, NULL);
PARCSignature *
parcSignature_Create(PARCSigningAlgorithm signingAlgorithm, PARCCryptoHashType hashType, PARCBuffer *signatureBits)
{
assertNotNull(signatureBits, "SignatureBits Parameter cannot be null");
PARCSignature *signature = parcObject_CreateInstance(PARCSignature);
assertNotNull(signature, "parcObject_CreateInstance(%zu) returned NULL", sizeof(PARCSignature));
signature->signingAlgorithm = signingAlgorithm;
signature->hashType = hashType;
signature->signatureBits = parcBuffer_Acquire(signatureBits);
return signature;
}
parcObject_ImplementAcquire(parcSignature, PARCSignature);
parcObject_ImplementRelease(parcSignature, PARCSignature);
PARCSigningAlgorithm
parcSignature_GetSigningAlgorithm(const PARCSignature *signature)
{
assertNotNull(signature, "Parameter must be non-null");
return signature->signingAlgorithm;
}
PARCCryptoHashType
parcSignature_GetHashType(const PARCSignature *signature)
{
assertNotNull(signature, "Parameter must be non-null");
return signature->hashType;
}
PARCBuffer *
parcSignature_GetSignature(const PARCSignature *signature)
{
assertNotNull(signature, "Parameter must be non-null");
return signature->signatureBits;
}
char *
parcSignature_ToString(const PARCSignature *signature)
{
assertNotNull(signature, "Parameter must be a non-null CCNxSignature pointer");
char *bits = parcBuffer_ToString(signature->signatureBits);
char *string;
int nwritten = asprintf(&string, "CCNxSignedInfo { .signingAlg=%d, .digestAlg=%d, .signature=%s }",
signature->signingAlgorithm,
signature->hashType,
bits);
assertTrue(nwritten >= 0, "Error calling asprintf");
parcMemory_Deallocate((void **) &bits);
char *result = parcMemory_StringDuplicate(string, strlen(string));
free(string);
return result;
}
bool
parcSignature_Equals(const PARCSignature *x, const PARCSignature *y)
{
if (x == y) {
return true;
}
if (x == NULL || y == NULL) {
return false;
}
if (x->signingAlgorithm == y->signingAlgorithm) {
if (x->hashType == y->hashType) {
if (parcBuffer_Equals(x->signatureBits, y->signatureBits)) {
return true;
}
}
}
return false;
}
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