[Assignment-7] add SGX sample code from VM

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/Sealing/Enclave/Enclave.config.xml

@@ -0,0 +1,12 @@
+<!-- Please refer to User's Guide for the explanation of each field -->
+<EnclaveConfiguration>
+  <ProdID>0</ProdID>
+  <ISVSVN>0</ISVSVN>
+  <StackMaxSize>0x40000</StackMaxSize>
+  <HeapMaxSize>0x100000</HeapMaxSize>
+  <TCSNum>10</TCSNum>
+  <TCSPolicy>1</TCSPolicy>
+  <DisableDebug>0</DisableDebug>
+  <MiscSelect>0</MiscSelect>
+  <MiscMask>0xFFFFFFFF</MiscMask>
+</EnclaveConfiguration>

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/Sealing/Enclave/Enclave.cpp

@@ -0,0 +1,6 @@
+#include "Enclave_t.h"
+
+int generate_random_number() {
+    ocall_print("Processing random number generation...");
+    return 42;
+}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/Sealing/Enclave/Enclave.edl

@@ -0,0 +1,13 @@
+enclave {
+    from "Sealing/Sealing.edl" import *;
+
+    trusted {
+        /* define ECALLs here. */
+        public int generate_random_number(void);
+    };
+
+    untrusted {
+        /* define OCALLs here. */
+        void ocall_print([in, string]const char* str);
+    };
+};

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/Sealing/Enclave/Enclave_private.pem

@@ -0,0 +1,39 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/Sealing/Enclave/Sealing/Sealing.cpp

@@ -0,0 +1,48 @@
+#include "sgx_trts.h"
+#include "sgx_tseal.h"
+#include "string.h"
+#include "Enclave_t.h"
+
+/**
+ * @brief      Seals the plaintext given into the sgx_sealed_data_t structure
+ *             given.
+ *
+ * @details    The plaintext can be any data. uint8_t is used to represent a
+ *             byte. The sealed size can be determined by computing
+ *             sizeof(sgx_sealed_data_t) + plaintext_len, since it is using
+ *             AES-GCM which preserves length of plaintext. The size needs to be
+ *             specified, otherwise SGX will assume the size to be just
+ *             sizeof(sgx_sealed_data_t), not taking into account the sealed
+ *             payload.
+ *
+ * @param      plaintext      The data to be sealed
+ * @param[in]  plaintext_len  The plaintext length
+ * @param      sealed_data    The pointer to the sealed data structure
+ * @param[in]  sealed_size    The size of the sealed data structure supplied
+ *
+ * @return     Truthy if seal successful, falsy otherwise.
+ */
+sgx_status_t seal(uint8_t* plaintext, size_t plaintext_len, sgx_sealed_data_t* sealed_data, size_t sealed_size) {
+    sgx_status_t status = sgx_seal_data(0, NULL, plaintext_len, plaintext, sealed_size, sealed_data);
+    return status;
+}
+
+/**
+ * @brief      Unseal the sealed_data given into c-string
+ *
+ * @details    The resulting plaintext is of type uint8_t to represent a byte.
+ *             The sizes/length of pointers need to be specified, otherwise SGX
+ *             will assume a count of 1 for all pointers.
+ *
+ * @param      sealed_data        The sealed data
+ * @param[in]  sealed_size        The size of the sealed data
+ * @param      plaintext          A pointer to buffer to store the plaintext
+ * @param[in]  plaintext_max_len  The size of buffer prepared to store the
+ *                                plaintext
+ *
+ * @return     Truthy if unseal successful, falsy otherwise.
+ */
+sgx_status_t unseal(sgx_sealed_data_t* sealed_data, size_t sealed_size, uint8_t* plaintext, uint32_t plaintext_len) {
+    sgx_status_t status = sgx_unseal_data(sealed_data, NULL, NULL, (uint8_t*)plaintext, &plaintext_len);
+    return status;
+}

Assignment 7 - SGX Hands-on/SGX101_sample_code-master/Sealing/Enclave/Sealing/Sealing.edl

@@ -0,0 +1,9 @@
+enclave {
+    include "sgx_tseal.h"
+
+    trusted {
+        public sgx_status_t seal([in, size=plaintext_len]uint8_t* plaintext, size_t plaintext_len, [out, size=sealed_size]sgx_sealed_data_t* sealed_data, size_t sealed_size);
+
+        public sgx_status_t unseal([in, size=sealed_size]sgx_sealed_data_t* sealed_data, size_t sealed_size, [out, size=plaintext_len]uint8_t* plaintext, uint32_t plaintext_len);
+    };
+};