Initial commit: cframework. Longbow and Libparc

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

1 files changed, 81 insertions, 0 deletions

diff --git a/libparc/parc/security/parc_SigningAlgorithm.c b/libparc/parc/security/parc_SigningAlgorithm.c
new file mode 100755
index 00000000..d0dadd4a
--- /dev/null
+++ b/libparc/parc/security/parc_SigningAlgorithm.c
@@ -0,0 +1,81 @@
+/*
+ * 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/security/parc_SigningAlgorithm.h>
+
+static struct {
+    PARCSigningAlgorithm alg;
+    char *name;
+} _signingAlgorithm_ToString[] = {
+    { PARCSigningAlgortihm_NULL, "PARCSigningAlgortihm_NULL" },
+    { PARCSigningAlgorithm_RSA,  "PARCSigningAlgorithm_RSA"  },
+    { PARCSigningAlgorithm_DSA,  "PARCSigningAlgorithm_DSA"  },
+    { PARCSigningAlgorithm_HMAC, "PARCSigningAlgorithm_HMAC" },
+    { 0,                         NULL                        }
+};
+
+const char *
+parcSigningAlgorithm_ToString(PARCSigningAlgorithm alg)
+{
+    for (int i = 0; _signingAlgorithm_ToString[i].name != NULL; i++) {
+        if (_signingAlgorithm_ToString[i].alg == alg) {
+            return _signingAlgorithm_ToString[i].name;
+        }
+    }
+    return NULL;
+}
+
+PARCSigningAlgorithm
+parcSigningAlgorithm_FromString(const char *name)
+{
+    for (int i = 0; _signingAlgorithm_ToString[i].name != NULL; i++) {
+        if (strcmp(_signingAlgorithm_ToString[i].name, name) == 0) {
+            return _signingAlgorithm_ToString[i].alg;
+        }
+    }
+    return PARCSigningAlgorithm_UNKNOWN;
+}
+
+PARCSigningAlgorithm
+parcSigningAlgorithm_GetSigningAlgorithm(PARCCryptoSuite suite)
+{
+    switch (suite) {
+        case PARCCryptoSuite_DSA_SHA256:
+            return PARCSigningAlgorithm_DSA;
+
+        case PARCCryptoSuite_RSA_SHA256:      // fallthrough
+        case PARCCryptoSuite_RSA_SHA512:
+            return PARCSigningAlgorithm_RSA;
+
+        case PARCCryptoSuite_HMAC_SHA256:     // fallthrough
+        case PARCCryptoSuite_HMAC_SHA512:
+            return PARCSigningAlgorithm_HMAC;
+
+        case PARCCryptoSuite_NULL_CRC32C:
+            return PARCSigningAlgortihm_NULL;
+
+        default:
+            trapIllegalValue(suit, "Unknown crypto suite: %d", suite);
+    }
+}