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RA_SGXserver.cpp
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/*!
*
* RA_SGXserver.cpp
*
* Copyright (c) 2020 IWATA Daiki
*
* This software is released under the MIT License.
* see http://opensource.org/licenses/mit-license
*
* Some function are released from Intel Corporation.
* LIENSE: https://github.com/intel/sgx-ra-sample/blob/master/LICENSE
*/
// IWATA
#include "RA_SGXserver.hpp"
// IWATA
/*
#ifdef _WIN32
#pragma comment(lib, "crypt32.lib")
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#else
#include "config.h"
#endif
#ifdef _WIN32
// *sigh*
# include "vs/client/Enclave_u.h"
#else
# include "Enclave_u.h"
#endif
#if !defined(SGX_HW_SIM)&&!defined(_WIN32)
#include "sgx_stub.h"
#endif
#include <stdlib.h>
#include <limits.h>
#include <stdio.h>
#include <time.h>
#include <sgx_urts.h>
#include <sys/stat.h>
#ifdef _WIN32
#include <intrin.h>
#include <wincrypt.h>
#include "win32/getopt.h"
#else
#include <openssl/evp.h>
#include <getopt.h>
#include <unistd.h>
#endif
#include <sgx_uae_service.h>
#include <sgx_ukey_exchange.h>
#include <string>
#include "common.h"
#include "protocol.h"
#include "sgx_detect.h"
#include "hexutil.h"
#include "fileio.h"
#include "base64.h"
#include "crypto.h"
#include "msgio.h"
#include "logfile.h"
#include "quote_size.h"
*/
#define MAX_LEN 80
//KS
// #include <sqlite3.h>
// int chkdb(unsigned char* id, unsigned char* pwhash);
int print_resp( void * , int , char ** , char ** );
int cbflg; // global variable.
# define PWHASH_LEN 3
#ifdef _WIN32
# define strdup(x) _strdup(x)
#else
# define _rdrand64_step(x) ({ unsigned char err; asm volatile("rdrand %0; setc %1":"=r"(*x), "=qm"(err)); err; })
#endif
#ifdef __x86_64__
#define DEF_LIB_SEARCHPATH "/lib:/lib64:/usr/lib:/usr/lib64"
#else
#define DEF_LIB_SEARCHPATH "/lib:/usr/lib"
#endif
// IWATA
/*
typedef struct config_struct {
char mode;
uint32_t flags;
sgx_spid_t spid;
sgx_ec256_public_t pubkey;
sgx_quote_nonce_t nonce;
char *server;
char *port;
} config_t;
*/
int file_in_searchpath (const char *file, const char *search, char *fullpath,
size_t len);
// IWATA
/*
sgx_status_t sgx_create_enclave_search (
const char *filename,
const int edebug,
sgx_launch_token_t *token,
int *updated,
sgx_enclave_id_t *eid,
sgx_misc_attribute_t *attr
);
*/
void usage();
int do_quote(sgx_enclave_id_t eid, config_t *config);
// IWATA
// int do_attestation(sgx_enclave_id_t eid, config_t *config);
// int repeat_attestation(sgx_enclave_id_t eid, config_t *config);
// int repeat_attestation(sgx_enclave_id_t eid, config_t *config, MsgIO *msgio);
char debug= 0;
char verbose= 0;
#define MODE_ATTEST 0x0
#define MODE_EPID 0x1
#define MODE_QUOTE 0x2
#define OPT_PSE 0x01
#define OPT_NONCE 0x02
#define OPT_LINK 0x04
#define OPT_PUBKEY 0x08
/* Macros to set, clear, and get the mode and options */
#define SET_OPT(x,y) x|=y
#define CLEAR_OPT(x,y) x=x&~y
#define OPT_ISSET(x,y) x&y
#ifdef _WIN32
# define ENCLAVE_NAME "Enclave.signed.dll"
#else
# define ENCLAVE_NAME "Enclave.signed.so"
#endif
// IWATA add
/*
int init_RA(int argc, char **argv, sgx_enclave_id_t& eid, config_t& config);
MsgIO* prepare_MsgIO(config_t *config);
MsgIO* handshake_RA(sgx_enclave_id_t eid, config_t *config, sgx_ra_context_t& ra_ctx, MsgIO *msgio);
*/
// IWATA edit
// int main (int argc, char *argv[])
int init_RA(int argc, char **argv, sgx_enclave_id_t& eid, config_t& config)
{
sgx_launch_token_t token= { 0 };
sgx_status_t status;
int updated= 0;
int sgx_support;
uint32_t i;
EVP_PKEY *service_public_key= NULL;
char have_spid= 0;
char flag_stdio= 0;
/* Create a logfile to capture debug output and actual msg data */
fplog = create_logfile("client.log");
dividerWithText(fplog, "Client Log Timestamp");
const time_t timeT = time(NULL);
struct tm lt, *ltp;
#ifndef _WIN32
ltp = localtime(&timeT);
if ( ltp == NULL ) {
perror("localtime");
// IWATA
// return 1;
return -1;
}
lt= *ltp;
#else
localtime_s(<, &timeT);
#endif
fprintf(fplog, "%4d-%02d-%02d %02d:%02d:%02d\n",
lt.tm_year + 1900,
lt.tm_mon + 1,
lt.tm_mday,
lt.tm_hour,
lt.tm_min,
lt.tm_sec);
divider(fplog);
memset(&config, 0, sizeof(config));
config.mode= MODE_ATTEST;
static struct option long_opt[] =
{
{"help", no_argument, 0, 'h'},
{"debug", no_argument, 0, 'd'},
{"epid-gid", no_argument, 0, 'e'},
{"pse-manifest",
no_argument, 0, 'm'},
{"nonce", required_argument, 0, 'n'},
{"nonce-file", required_argument, 0, 'N'},
{"rand-nonce", no_argument, 0, 'r'},
{"spid", required_argument, 0, 's'},
{"spid-file", required_argument, 0, 'S'},
{"linkable", no_argument, 0, 'l'},
{"pubkey", optional_argument, 0, 'p'},
{"pubkey-file", required_argument, 0, 'P'},
{"quote", no_argument, 0, 'q'},
{"verbose", no_argument, 0, 'v'},
{"stdio", no_argument, 0, 'z'},
{ 0, 0, 0, 0 }
};
/* Parse our options */
while (1) {
int c;
int opt_index= 0;
unsigned char keyin[64];
c= getopt_long(argc, argv, "N:P:S:dehlmn:p:qrs:vz", long_opt,
&opt_index);
if ( c == -1 ) break;
switch(c) {
case 0:
break;
case 'N':
if ( ! from_hexstring_file((unsigned char *) &config.nonce,
optarg, 16)) {
fprintf(stderr, "nonce must be 32-byte hex string\n");
exit(1);
}
SET_OPT(config.flags, OPT_NONCE);
break;
case 'P':
if ( ! key_load_file(&service_public_key, optarg, KEY_PUBLIC) ) {
fprintf(stderr, "%s: ", optarg);
crypto_perror("key_load_file");
exit(1);
}
if ( ! key_to_sgx_ec256(&config.pubkey, service_public_key) ) {
fprintf(stderr, "%s: ", optarg);
crypto_perror("key_to_sgx_ec256");
exit(1);
}
SET_OPT(config.flags, OPT_PUBKEY);
break;
case 'S':
if ( ! from_hexstring_file((unsigned char *) &config.spid,
optarg, 16)) {
fprintf(stderr, "SPID must be 32-byte hex string\n");
exit(1);
}
++have_spid;
break;
case 'd':
debug= 1;
break;
case 'e':
config.mode= MODE_EPID;
break;
case 'l':
SET_OPT(config.flags, OPT_LINK);
break;
case 'm':
SET_OPT(config.flags, OPT_PSE);
break;
case 'n':
if ( strlen(optarg) < 32 ) {
fprintf(stderr, "nonce must be 32-byte hex string\n");
exit(1);
}
if ( ! from_hexstring((unsigned char *) &config.nonce,
(unsigned char *) optarg, 16) ) {
fprintf(stderr, "nonce must be 32-byte hex string\n");
exit(1);
}
SET_OPT(config.flags, OPT_NONCE);
break;
case 'p':
if ( ! from_hexstring((unsigned char *) keyin,
(unsigned char *) optarg, 64)) {
fprintf(stderr, "key must be 128-byte hex string\n");
exit(1);
}
/* Reverse the byte stream to make a little endien style value */
for(i= 0; i< 32; ++i) config.pubkey.gx[i]= keyin[31-i];
for(i= 0; i< 32; ++i) config.pubkey.gy[i]= keyin[63-i];
SET_OPT(config.flags, OPT_PUBKEY);
break;
case 'q':
config.mode = MODE_QUOTE;
break;
case 'r':
for(i= 0; i< 2; ++i) {
int retry= 10;
unsigned char ok= 0;
uint64_t *np= (uint64_t *) &config.nonce;
while ( !ok && retry ) ok= _rdrand64_step(&np[i]);
if ( ok == 0 ) {
fprintf(stderr, "nonce: RDRAND underflow\n");
exit(1);
}
}
SET_OPT(config.flags, OPT_NONCE);
break;
case 's':
if ( strlen(optarg) < 32 ) {
fprintf(stderr, "SPID must be 32-byte hex string\n");
exit(1);
}
if ( ! from_hexstring((unsigned char *) &config.spid,
(unsigned char *) optarg, 16) ) {
fprintf(stderr, "SPID must be 32-byte hex string\n");
exit(1);
}
++have_spid;
break;
case 'v':
verbose= 1;
break;
case 'z':
flag_stdio= 1;
break;
case 'h':
case '?':
default:
usage();
}
}
argc-= optind;
if ( argc > 1 ) usage();
/* Remaining argument is host[:port] */
if ( flag_stdio && argc ) usage();
else if ( !flag_stdio && ! argc ) {
// Default to localhost
config.server= strdup("localhost");
if ( config.server == NULL ) {
perror("malloc");
// IWATA
// return 1;
return -1;
}
} else if ( argc ) {
char *cp;
config.server= strdup(argv[optind]);
if ( config.server == NULL ) {
perror("malloc");
// IWATA
// return 1;
return -1;
}
/* If there's a : then we have a port, too */
cp= strchr(config.server, ':');
if ( cp != NULL ) {
*cp++= '\0';
config.port= cp;
}
}
if ( ! have_spid && config.mode != MODE_EPID ) {
fprintf(stderr, "SPID required. Use one of --spid or --spid-file \n");
// IWATA
// return 1;
return -1;
}
/* Can we run SGX? */
#ifndef SGX_HW_SIM
sgx_support = get_sgx_support();
if (sgx_support & SGX_SUPPORT_NO) {
fprintf(stderr, "This system does not support Intel SGX.\n");
// IWATA
// return 1;
return -1;
} else {
if (sgx_support & SGX_SUPPORT_ENABLE_REQUIRED) {
fprintf(stderr, "Intel SGX is supported on this system but disabled in the BIOS\n");
// IWATA
// return 1;
return -1;
}
else if (sgx_support & SGX_SUPPORT_REBOOT_REQUIRED) {
fprintf(stderr, "Intel SGX will be enabled after the next reboot\n");
// IWATA
// return 1;
return -1;
}
else if (!(sgx_support & SGX_SUPPORT_ENABLED)) {
fprintf(stderr, "Intel SGX is supported on this sytem but not available for use\n");
fprintf(stderr, "The system may lock BIOS support, or the Platform Software is not available\n");
// IWATA
// return 1;
return -1;
}
}
#endif
/* Launch the enclave */
#ifdef _WIN32
status = sgx_create_enclave(ENCLAVE_NAME, SGX_DEBUG_FLAG,
&token, &updated, &eid, 0);
if (status != SGX_SUCCESS) {
fprintf(stderr, "sgx_create_enclave: %s: %08x\n",
ENCLAVE_NAME, status);
// IWATA
// return 1;
return -1;
}
#else
status = sgx_create_enclave_search(ENCLAVE_NAME,
SGX_DEBUG_FLAG, &token, &updated, &eid, 0);
if ( status != SGX_SUCCESS ) {
fprintf(stderr, "sgx_create_enclave: %s: %08x\n",
ENCLAVE_NAME, status);
if ( status == SGX_ERROR_ENCLAVE_FILE_ACCESS )
fprintf(stderr, "Did you forget to set LD_LIBRARY_PATH?\n");
// IWATA
// return 1;
return -1;
}
#endif
/* Are we attesting, or just spitting out a quote? */
// IWATA
if ( config.mode == MODE_ATTEST ) {
//KS do_attestation(eid, &config);
// IWATA repeat_attestation(eid, &config);
// repeat_attestation(eid, &config, msgio);
return 1;
}
else if ( config.mode == MODE_EPID || config.mode == MODE_QUOTE ) {
do_quote(eid, &config);
return 2;
} else {
fprintf(stderr, "Unknown operation mode.\n");
return -1;
}
// IWATA
// close_logfile(fplog);
return 0;
}
// IWATA
MsgIO* prepare_MsgIO(config_t *config)
{
MsgIO *msgio;
if ( config->server == NULL ) {
msgio = new MsgIO();
} else {
try {
msgio = new MsgIO(NULL, (config->port == NULL) ?
DEFAULT_PORT : config->port);
}
catch(...) {
cerr << "Fail to prepare MsgIO socket..." << endl;
return NULL;
}
}
return msgio;
}
// IWATA
// edit do_attestation(sgx_enclave_id_t eid, config_t *config);
MsgIO* handshake_RA(sgx_enclave_id_t eid, config_t *config, sgx_ra_context_t& ra_ctx, MsgIO *msgio)
{
sgx_status_t status, sgxrv, pse_status;
sgx_ra_msg1_t msg1;
sgx_ra_msg2_t *msg2 = NULL;
sgx_ra_msg3_t *msg3 = NULL;
ra_msg4_t *msg4 = NULL;
uint32_t msg0_extended_epid_group_id = 0;
uint32_t msg3_sz;
uint32_t flags= config->flags;
// IWATA sgx_ra_context_t ra_ctx= 0xdeadbeef;
int rv;
//KS MsgIO *msgio;
size_t msg4sz = 0;
int enclaveTrusted = NotTrusted; // Not Trusted
int b_pse= OPT_ISSET(flags, OPT_PSE);
//KS
/**
if ( config->server == NULL ) {
msgio = new MsgIO();
} else {
try {
msgio = new MsgIO(config->server, (config->port == NULL) ?
DEFAULT_PORT : config->port);
}
catch(...) {
exit(1);
}
}
**/
/*
* WARNING! Normally, the public key would be hardcoded into the
* enclave, not passed in as a parameter. Hardcoding prevents
* the enclave using an unauthorized key.
*
* This is diagnostic/test application, however, so we have
* the flexibility of a dynamically assigned key.
*/
/* Executes an ECALL that runs sgx_ra_init() */
if ( OPT_ISSET(flags, OPT_PUBKEY) ) {
if ( debug ) fprintf(stderr, "+++ using supplied public key\n");
status= enclave_ra_init(eid, &sgxrv, config->pubkey, b_pse,
&ra_ctx, &pse_status);
} else {
if ( debug ) fprintf(stderr, "+++ using default public key\n");
status= enclave_ra_init_def(eid, &sgxrv, b_pse, &ra_ctx,
&pse_status);
}
/* Did the ECALL succeed? */
if ( status != SGX_SUCCESS ) {
fprintf(stderr, "enclave_ra_init: %08x\n", status);
// IWATA
// delete msgio;
// return 1;
return NULL;
}
/* If we asked for a PSE session, did that succeed? */
if (b_pse) {
if ( pse_status != SGX_SUCCESS ) {
fprintf(stderr, "pse_session: %08x\n", sgxrv);
// IWATA
// delete msgio;
// return 1;
return NULL;
}
}
/* Did sgx_ra_init() succeed? */
if ( sgxrv != SGX_SUCCESS ) {
fprintf(stderr, "sgx_ra_init: %08x\n", sgxrv);
// IWATA
// delete msgio;
// return 1;
return NULL;
}
/* Generate msg0 */
status = sgx_get_extended_epid_group_id(&msg0_extended_epid_group_id);
if ( status != SGX_SUCCESS ) {
enclave_ra_close(eid, &sgxrv, ra_ctx);
fprintf(stderr, "sgx_get_extended_epid_group_id: %08x\n", status);
// IWATA
// delete msgio;
// return 1;
return NULL;
}
if ( verbose ) {
dividerWithText(stderr, "Msg0 Details");
dividerWithText(fplog, "Msg0 Details");
fprintf(stderr, "Extended Epid Group ID: ");
fprintf(fplog, "Extended Epid Group ID: ");
print_hexstring(stderr, &msg0_extended_epid_group_id,
sizeof(uint32_t));
print_hexstring(fplog, &msg0_extended_epid_group_id,
sizeof(uint32_t));
fprintf(stderr, "\n");
fprintf(fplog, "\n");
divider(stderr);
divider(fplog);
}
/* Generate msg1 */
status= sgx_ra_get_msg1(ra_ctx, eid, sgx_ra_get_ga, &msg1);
if ( status != SGX_SUCCESS ) {
enclave_ra_close(eid, &sgxrv, ra_ctx);
fprintf(stderr, "sgx_ra_get_msg1: %08x\n", status);
fprintf(fplog, "sgx_ra_get_msg1: %08x\n", status);
// IWATA
// delete msgio;
// return 1;
return NULL;
}
if ( verbose ) {
dividerWithText(stderr,"Msg1 Details");
dividerWithText(fplog,"Msg1 Details");
fprintf(stderr, "msg1.g_a.gx = ");
fprintf(fplog, "msg1.g_a.gx = ");
print_hexstring(stderr, msg1.g_a.gx, 32);
print_hexstring(fplog, msg1.g_a.gx, 32);
fprintf(stderr, "\nmsg1.g_a.gy = ");
fprintf(fplog, "\nmsg1.g_a.gy = ");
print_hexstring(stderr, msg1.g_a.gy, 32);
print_hexstring(fplog, msg1.g_a.gy, 32);
fprintf(stderr, "\nmsg1.gid = ");
fprintf(fplog, "\nmsg1.gid = ");
print_hexstring(stderr, msg1.gid, 4);
print_hexstring(fplog, msg1.gid, 4);
fprintf(stderr, "\n");
fprintf(fplog, "\n");
divider(stderr);
divider(fplog);
}
/*
* Send msg0 and msg1 concatenated together (msg0||msg1). We do
* this for efficiency, to eliminate an additional round-trip
* between client and server. The assumption here is that most
* clients have the correct extended_epid_group_id so it's
* a waste to send msg0 separately when the probability of a
* rejection is astronomically small.
*
* If it /is/ rejected, then the client has only wasted a tiny
* amount of time generating keys that won't be used.
*/
dividerWithText(fplog, "Msg0||Msg1 ==> SP");
fsend_msg_partial(fplog, &msg0_extended_epid_group_id,
sizeof(msg0_extended_epid_group_id));
fsend_msg(fplog, &msg1, sizeof(msg1));
divider(fplog);
dividerWithText(stderr, "Copy/Paste Msg0||Msg1 Below to SP");
msgio->send_partial(&msg0_extended_epid_group_id,
sizeof(msg0_extended_epid_group_id));
msgio->send(&msg1, sizeof(msg1));
divider(stderr);
fprintf(stderr, "Waiting for msg2\n");
/* Read msg2
*
* msg2 is variable length b/c it includes the revocation list at
* the end. msg2 is malloc'd in readZ_msg do free it when done.
*/
rv= msgio->read((void **) &msg2, NULL);
if ( rv == 0 ) {
enclave_ra_close(eid, &sgxrv, ra_ctx);
fprintf(stderr, "protocol error reading msg2\n");
// IWATA
// delete msgio;
// return 1;
return NULL;
} else if ( rv == -1 ) {
enclave_ra_close(eid, &sgxrv, ra_ctx);
fprintf(stderr, "system error occurred while reading msg2\n");
// IWATA
// delete msgio;
// return 1;
return NULL;
}
if ( verbose ) {
dividerWithText(stderr, "Msg2 Details");
dividerWithText(fplog, "Msg2 Details (Received from SP)");
fprintf(stderr, "msg2.g_b.gx = ");
fprintf(fplog, "msg2.g_b.gx = ");
print_hexstring(stderr, &msg2->g_b.gx, sizeof(msg2->g_b.gx));
print_hexstring(fplog, &msg2->g_b.gx, sizeof(msg2->g_b.gx));
fprintf(stderr, "\nmsg2.g_b.gy = ");
fprintf(fplog, "\nmsg2.g_b.gy = ");
print_hexstring(stderr, &msg2->g_b.gy, sizeof(msg2->g_b.gy));
print_hexstring(fplog, &msg2->g_b.gy, sizeof(msg2->g_b.gy));
fprintf(stderr, "\nmsg2.spid = ");
fprintf(fplog, "\nmsg2.spid = ");
print_hexstring(stderr, &msg2->spid, sizeof(msg2->spid));
print_hexstring(fplog, &msg2->spid, sizeof(msg2->spid));
fprintf(stderr, "\nmsg2.quote_type = ");
fprintf(fplog, "\nmsg2.quote_type = ");
print_hexstring(stderr, &msg2->quote_type, sizeof(msg2->quote_type));
print_hexstring(fplog, &msg2->quote_type, sizeof(msg2->quote_type));
fprintf(stderr, "\nmsg2.kdf_id = ");
fprintf(fplog, "\nmsg2.kdf_id = ");
print_hexstring(stderr, &msg2->kdf_id, sizeof(msg2->kdf_id));
print_hexstring(fplog, &msg2->kdf_id, sizeof(msg2->kdf_id));
fprintf(stderr, "\nmsg2.sign_ga_gb = ");
fprintf(fplog, "\nmsg2.sign_ga_gb = ");
print_hexstring(stderr, &msg2->sign_gb_ga, sizeof(msg2->sign_gb_ga));
print_hexstring(fplog, &msg2->sign_gb_ga, sizeof(msg2->sign_gb_ga));
fprintf(stderr, "\nmsg2.mac = ");
fprintf(fplog, "\nmsg2.mac = ");
print_hexstring(stderr, &msg2->mac, sizeof(msg2->mac));
print_hexstring(fplog, &msg2->mac, sizeof(msg2->mac));
fprintf(stderr, "\nmsg2.sig_rl_size = ");
fprintf(fplog, "\nmsg2.sig_rl_size = ");
print_hexstring(stderr, &msg2->sig_rl_size, sizeof(msg2->sig_rl_size));
print_hexstring(fplog, &msg2->sig_rl_size, sizeof(msg2->sig_rl_size));
fprintf(stderr, "\nmsg2.sig_rl = ");
fprintf(fplog, "\nmsg2.sig_rl = ");
print_hexstring(stderr, &msg2->sig_rl, msg2->sig_rl_size);
print_hexstring(fplog, &msg2->sig_rl, msg2->sig_rl_size);
fprintf(stderr, "\n");
fprintf(fplog, "\n");
divider(stderr);
divider(fplog);
}
if ( debug ) {
fprintf(stderr, "+++ msg2_size = %zu\n",
sizeof(sgx_ra_msg2_t)+msg2->sig_rl_size);
fprintf(fplog, "+++ msg2_size = %zu\n",
sizeof(sgx_ra_msg2_t)+msg2->sig_rl_size);
}
/* Process Msg2, Get Msg3 */
/* object msg3 is malloc'd by SGX SDK, so remember to free when finished */
msg3 = NULL;
status = sgx_ra_proc_msg2(ra_ctx, eid,
sgx_ra_proc_msg2_trusted, sgx_ra_get_msg3_trusted, msg2,
sizeof(sgx_ra_msg2_t) + msg2->sig_rl_size,
&msg3, &msg3_sz);
free(msg2);
if ( status != SGX_SUCCESS ) {
enclave_ra_close(eid, &sgxrv, ra_ctx);
fprintf(stderr, "sgx_ra_proc_msg2: %08x\n", status);
fprintf(fplog, "sgx_ra_proc_msg2: %08x\n", status);
// IWATA
// delete msgio;
// return 1;
return NULL;
}
if ( debug ) {
fprintf(stderr, "+++ msg3_size = %u\n", msg3_sz);
fprintf(fplog, "+++ msg3_size = %u\n", msg3_sz);
}
if ( verbose ) {
dividerWithText(stderr, "Msg3 Details");
dividerWithText(fplog, "Msg3 Details");
fprintf(stderr, "msg3.mac = ");
fprintf(fplog, "msg3.mac = ");
print_hexstring(stderr, msg3->mac, sizeof(msg3->mac));
print_hexstring(fplog, msg3->mac, sizeof(msg3->mac));
fprintf(stderr, "\nmsg3.g_a.gx = ");
fprintf(fplog, "\nmsg3.g_a.gx = ");
print_hexstring(stderr, msg3->g_a.gx, sizeof(msg3->g_a.gx));
print_hexstring(fplog, msg3->g_a.gx, sizeof(msg3->g_a.gx));
fprintf(stderr, "\nmsg3.g_a.gy = ");
fprintf(fplog, "\nmsg3.g_a.gy = ");
print_hexstring(stderr, msg3->g_a.gy, sizeof(msg3->g_a.gy));
print_hexstring(fplog, msg3->g_a.gy, sizeof(msg3->g_a.gy));
fprintf(stderr, "\nmsg3.ps_sec_prop.sgx_ps_sec_prop_desc = ");
fprintf(fplog, "\nmsg3.ps_sec_prop.sgx_ps_sec_prop_desc = ");
print_hexstring(stderr, msg3->ps_sec_prop.sgx_ps_sec_prop_desc,
sizeof(msg3->ps_sec_prop.sgx_ps_sec_prop_desc));
print_hexstring(fplog, msg3->ps_sec_prop.sgx_ps_sec_prop_desc,
sizeof(msg3->ps_sec_prop.sgx_ps_sec_prop_desc));
fprintf(fplog, "\n");
fprintf(stderr, "\nmsg3.quote = ");
fprintf(fplog, "\nmsg3.quote = ");
print_hexstring(stderr, msg3->quote, msg3_sz-sizeof(sgx_ra_msg3_t));
print_hexstring(fplog, msg3->quote, msg3_sz-sizeof(sgx_ra_msg3_t));
fprintf(fplog, "\n");
fprintf(stderr, "\n");
fprintf(fplog, "\n");
divider(stderr);
divider(fplog);
}
dividerWithText(stderr, "Copy/Paste Msg3 Below to SP");
msgio->send(msg3, msg3_sz);
divider(stderr);
dividerWithText(fplog, "Msg3 ==> SP");
fsend_msg(fplog, msg3, msg3_sz);
divider(fplog);
if ( msg3 ) {
free(msg3);
msg3 = NULL;
}
/* Read Msg4 provided by Service Provider, then process */
rv= msgio->read((void **)&msg4, &msg4sz);
if ( rv == 0 ) {
enclave_ra_close(eid, &sgxrv, ra_ctx);
fprintf(stderr, "protocol error reading msg4\n");
// IWATA
// delete msgio;
// return 1;
return NULL;
} else if ( rv == -1 ) {
enclave_ra_close(eid, &sgxrv, ra_ctx);
fprintf(stderr, "system error occurred while reading msg4\n");
// IWATA
// delete msgio;
// return 1;
return NULL;
}
edividerWithText("Enclave Trust Status from Service Provider");
enclaveTrusted= msg4->status;
if ( enclaveTrusted == Trusted ) {
eprintf("Enclave TRUSTED\n");
}
else if ( enclaveTrusted == NotTrusted ) {
eprintf("Enclave NOT TRUSTED\n");
}
else if ( enclaveTrusted == Trusted_ItsComplicated ) {
// Trusted, but client may be untrusted in the future unless it
// takes action.
eprintf("Enclave Trust is TRUSTED and COMPLICATED. The client is out of date and\nmay not be trusted in the future depending on the service provider's policy.\n");
} else {
// Not Trusted, but client may be able to take action to become
// trusted.
eprintf("Enclave Trust is NOT TRUSTED and COMPLICATED. The client is out of date.\n");
}
/* check to see if we have a PIB by comparing to empty PIB */
sgx_platform_info_t emptyPIB;
memset(&emptyPIB, 0, sizeof (sgx_platform_info_t));
int retPibCmp = memcmp(&emptyPIB, (void *)(&msg4->platformInfoBlob), sizeof (sgx_platform_info_t));
if (retPibCmp == 0 ) {
if ( verbose ) eprintf("A Platform Info Blob (PIB) was NOT provided by the IAS\n");
} else {
if ( verbose ) eprintf("A Platform Info Blob (PIB) was provided by the IAS\n");
if ( debug ) {
eprintf("+++ PIB: " );
print_hexstring(stderr, &msg4->platformInfoBlob, sizeof (sgx_platform_info_t));
print_hexstring(fplog, &msg4->platformInfoBlob, sizeof (sgx_platform_info_t));
eprintf("\n");
}
/* We have a PIB, so check to see if there are actions to take */
sgx_update_info_bit_t update_info;
sgx_status_t ret = sgx_report_attestation_status(&msg4->platformInfoBlob,
enclaveTrusted, &update_info);
if ( debug ) eprintf("+++ sgx_report_attestation_status ret = 0x%04x\n", ret);
edivider();
/* Check to see if there is an update needed */
if ( ret == SGX_ERROR_UPDATE_NEEDED ) {
edividerWithText("Platform Update Required");
eprintf("The following Platform Update(s) are required to bring this\n");
eprintf("platform's Trusted Computing Base (TCB) back into compliance:\n\n");
if( update_info.pswUpdate ) {
eprintf(" * Intel SGX Platform Software needs to be updated to the latest version.\n");
}
if( update_info.csmeFwUpdate ) {
eprintf(" * The Intel Management Engine Firmware Needs to be Updated. Contact your\n");
eprintf(" OEM for a BIOS Update.\n");
}
if( update_info.ucodeUpdate ) {
eprintf(" * The CPU Microcode needs to be updated. Contact your OEM for a platform\n");
eprintf(" BIOS Update.\n");
}
eprintf("\n");
edivider();
}
}
/*
* If the enclave is trusted, fetch a hash of the the MK and SK from
* the enclave to show proof of a shared secret with the service
* provider.
*/
// KS
enclaveTrusted = Trusted;
if ( enclaveTrusted == Trusted ) {
sgx_status_t key_status, sha_status;
sgx_sha256_hash_t mkhash, skhash;
// First the MK
if ( debug ) eprintf("+++ fetching SHA256(MK)\n");
status= enclave_ra_get_key_hash(eid, &sha_status, &key_status, ra_ctx,
SGX_RA_KEY_MK, &mkhash);
if ( debug ) eprintf("+++ ECALL enclage_ra_get_key_hash (MK) ret= 0x%04x\n",
status);
if ( debug ) eprintf("+++ sgx_ra_get_keys (MK) ret= 0x%04x\n", key_status);
// Then the SK
if ( debug ) eprintf("+++ fetching SHA256(SK)\n");
status= enclave_ra_get_key_hash(eid, &sha_status, &key_status, ra_ctx,
SGX_RA_KEY_SK, &skhash);
if ( debug ) eprintf("+++ ECALL enclage_ra_get_key_hash (MK) ret= 0x%04x\n",
status);
if ( debug ) eprintf("+++ sgx_ra_get_keys (MK) ret= 0x%04x\n", key_status);
if ( verbose ) {
eprintf("SHA256(MK) = ");
print_hexstring(stderr, mkhash, sizeof(mkhash));
print_hexstring(fplog, mkhash, sizeof(mkhash));
eprintf("\n");
eprintf("SHA256(SK) = ");
print_hexstring(stderr, skhash, sizeof(skhash));
print_hexstring(fplog, skhash, sizeof(skhash));
eprintf("\n");
}
}
free (msg4);
/**
// IWATA
//KS add
unsigned char *user_sk = NULL;
unsigned char *enc_user_sk = NULL;
unsigned char *iv = NULL;
sgx_aes_gcm_128bit_tag_t *tag = NULL;
sgx_status_t ret, get_key_status;
//for pwck
unsigned char *id = NULL;
unsigned char *pwhash =NULL;
msgio->read((void **) &id, NULL);
msgio->read((void **) &pwhash, NULL);
chkdb(id, pwhash);
if(cbflg!=0){
printf("Password check is failed\n");
// IWATA