Initial commit: cframework. Longbow and Libparc

Change-Id: I90378dbd30da6033b20fb1f829b3b822cf366c59
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>

1 files changed, 160 insertions, 0 deletions

diff --git a/libparc/parc/security/parc_Signer.c b/libparc/parc/security/parc_Signer.c
new file mode 100644
index 00000000..2135070c
--- /dev/null
+++ b/libparc/parc/security/parc_Signer.c
@@ -0,0 +1,160 @@
+/*
+ * 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 <LongBow/runtime.h>
+
+#include <parc/algol/parc_Memory.h>
+#include <parc/algol/parc_Object.h>
+
+#include <parc/security/parc_Signer.h>
+#include <parc/security/parc_KeyStore.h>
+
+struct parc_signer {
+    PARCObject *instance;
+    PARCSigningInterface *interface;
+};
+
+static bool
+_parcSigner_FinalRelease(PARCSigner **signerPtr)
+{
+    PARCSigner *signer = *signerPtr;
+    if (signer->instance != NULL) {
+        parcObject_Release(&(signer->instance));
+    }
+    return true;
+}
+
+void
+parcSigner_AssertValid(const PARCSigner *signer)
+{
+    assertNotNull(signer, "Parameter must be non-null PARCSigner");
+}
+
+parcObject_ImplementAcquire(parcSigner, PARCSigner);
+parcObject_ImplementRelease(parcSigner, PARCSigner);
+
+parcObject_Override(PARCSigner, PARCObject,
+                    .destructor = (PARCObjectDestructor *) _parcSigner_FinalRelease);
+
+PARCSigner *
+parcSigner_Create(PARCObject *instance, PARCSigningInterface *interfaceContext)
+{
+    assertNotNull(interfaceContext, "Parameter must be non-null implementation pointer");
+
+    PARCSigner *signer = parcObject_CreateInstance(PARCSigner);
+    if (signer != NULL) {
+        signer->instance = parcObject_Acquire(instance);
+        signer->interface = interfaceContext;
+    }
+    return signer;
+}
+
+PARCKey *
+parcSigner_CreatePublicKey(PARCSigner *signer)
+{
+    PARCKeyStore *keyStore = parcSigner_GetKeyStore(signer);
+
+    PARCCryptoHash *hash = parcKeyStore_GetVerifierKeyDigest(keyStore);
+
+    PARCKeyId *keyid = parcKeyId_Create(parcCryptoHash_GetDigest(hash));
+    parcCryptoHash_Release(&hash);
+
+    PARCBuffer *derEncodedKey = parcKeyStore_GetDEREncodedPublicKey(keyStore);
+
+    PARCKey *key = parcKey_CreateFromDerEncodedPublicKey(keyid,
+                                                         parcSigner_GetSigningAlgorithm(signer),
+                                                         derEncodedKey);
+
+    parcBuffer_Release(&derEncodedKey);
+    parcKeyId_Release(&keyid);
+
+    return key;
+}
+
+PARCKeyId *
+parcSigner_CreateKeyId(const PARCSigner *signer)
+{
+    PARCCryptoHash *hash = parcKeyStore_GetVerifierKeyDigest(parcSigner_GetKeyStore(signer));
+    PARCBuffer *keyidBytes = parcCryptoHash_GetDigest(hash);
+    PARCKeyId *result = parcKeyId_Create(keyidBytes);
+
+    parcCryptoHash_Release(&hash);
+    return result;
+}
+
+PARCCryptoHasher *
+parcSigner_GetCryptoHasher(const PARCSigner *signer)
+{
+    parcSigner_OptionalAssertValid(signer);
+
+    return signer->interface->GetCryptoHasher(signer->instance);
+}
+
+PARCSignature *
+parcSigner_SignDigest(const PARCSigner *signer, const PARCCryptoHash *parcDigest)
+{
+    parcSigner_OptionalAssertValid(signer);
+
+    assertNotNull(parcDigest, "parcDigest to sign must not be null");
+    return signer->interface->SignDigest(signer->instance, parcDigest);
+}
+
+PARCSignature *
+parcSigner_SignBuffer(const PARCSigner *signer, const PARCBuffer *buffer)
+{
+    parcSigner_OptionalAssertValid(signer);
+    assertNotNull(buffer, "buffer to sign must not be null");
+
+    PARCCryptoHashType hashType = parcSigner_GetCryptoHashType(signer);
+    PARCCryptoHasher *hasher = parcCryptoHasher_Create(hashType);
+    parcCryptoHasher_Init(hasher);
+    parcCryptoHasher_UpdateBuffer(hasher, buffer);
+    PARCCryptoHash *hash = parcCryptoHasher_Finalize(hasher);
+    parcCryptoHasher_Release(&hasher);
+
+    PARCSignature *signature = parcSigner_SignDigest(signer, hash);
+    parcCryptoHash_Release(&hash);
+
+    return signature;
+}
+
+PARCSigningAlgorithm
+parcSigner_GetSigningAlgorithm(PARCSigner *signer)
+{
+    parcSigner_OptionalAssertValid(signer);
+
+    return signer->interface->GetSigningAlgorithm(signer->instance);
+}
+
+PARCCryptoHashType
+parcSigner_GetCryptoHashType(const PARCSigner *signer)
+{
+    parcSigner_OptionalAssertValid(signer);
+
+    return signer->interface->GetCryptoHashType(signer->instance);
+}
+
+PARCKeyStore *
+parcSigner_GetKeyStore(const PARCSigner *signer)
+{
+    parcSigner_OptionalAssertValid(signer);
+
+    return signer->interface->GetKeyStore(signer->instance);
+}