1 files changed, 123 insertions, 0 deletions
diff --git a/libparc/parc/security/parc_Signature.c b/libparc/parc/security/parc_Signature.c
new file mode 100755
index 00000000..1021b2a4
--- /dev/null
+++ b/libparc/parc/security/parc_Signature.c
@@ -0,0 +1,123 @@
+/*
+ * 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;
+}