int main(void)
{
unsigned char buffer[1024];
unsigned int i = 0;
unsigned int ones = 0, zeroes = 0;
unsigned int pattern2[4] = {0,0,0,0};
TPM_setlog(0);
printf("Counting number of '1's and '0's of the rng.\n");
while (i < 10) {
uint32_t bufferSize = sizeof(buffer);
unsigned int j = 0;
uint32_t ret;
ret = TPM_GetRandom(bufferSize,
buffer, &bufferSize);
if (0 != ret) {
printf("Error %s from TPM_GetRandom.\n",
TPM_GetErrMsg(ret));
exit (ret);
}
while (j < bufferSize) {
unsigned int c = countOnes(buffer[j]);
ones += c;
zeroes += (8-c);
pattern2[0] += matchPattern(buffer[j], 0x0, 2);
pattern2[1] += matchPattern(buffer[j], 0x1, 2);
pattern2[2] += matchPattern(buffer[j], 0x2, 2);
pattern2[3] += matchPattern(buffer[j], 0x3, 2);
j++;
}
ret = TPM_StirRandom(buffer, 10);
if (0 != ret) {
printf("Error %s from TPM_StirRandom.\n",
TPM_GetErrMsg(ret));
exit(ret);
}
i++;
}
printf("Percentage of '1': %d percent.\n", (ones*100)/(ones+zeroes));
printf("Percentage of '00' bits: %d percent\n",
(pattern2[0]*200)/(ones+zeroes));
printf("Percentage of '01' bits: %d percent\n",
(pattern2[1]*200)/(ones+zeroes));
printf("Percentage of '10' bits: %d percent\n",
(pattern2[2]*200)/(ones+zeroes));
printf("Percentage of '11' bits: %d percent\n",
(pattern2[3]*200)/(ones+zeroes));
return 0;
}
int main(int argc, char *argv[])
{
int ret = 0;
int i; /* argc iterator */
TPM_setlog(0); /* turn off verbose output */
for (i=1 ; i<argc ; i++) {
if (!strcmp(argv[i], "-h")) {
printUsage();
}
else if (!strcmp(argv[i], "-v")) {
TPM_setlog(1);
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
if (ret == 0) {
ret = TPM_Init();
if (ret != 0) {
printf("Error %s from TPM_Init.\n",
TPM_GetErrMsg(ret));
}
}
exit(ret);
}
static int prepare_subcap(uint32_t cap,
struct tpm_buffer *subcap,
uint32_t scap)
{
int handled = 0;
uint32_t ret;
if (TPM_CAP_CHECK_LOADED == cap) {
struct keydata k;
memset(&k, 0, sizeof(k));
handled = 1;
k.keyFlags = 0;
k.keyUsage = TPM_KEY_LEGACY;
k.pub.algorithmParms.algorithmID = scap;
k.pub.algorithmParms.encScheme = TPM_ES_NONE;
k.pub.algorithmParms.sigScheme = TPM_SS_RSASSAPKCS1v15_INFO;
k.pub.algorithmParms.u.rsaKeyParms.keyLength = 2048 ; /* RSA modulus size 2048 bits */
k.pub.algorithmParms.u.rsaKeyParms.numPrimes = 2; /* required */
k.pub.algorithmParms.u.rsaKeyParms.exponentSize = 0; /* RSA exponent - default 0x010001 */
k.pub.pubKey.keyLength = 0; /* key not specified here */
k.pub.pcrInfo.size = 0; /* no PCR's used at this time */
ret = TPM_WriteKeyInfo(subcap, &k);
if (ret & ERR_MASK) {
printf("Error from writing key info: %s\n",
TPM_GetErrMsg(ret));
}
}
return handled;
}
static long getPhysicalCMDEnable(TPM_BOOL *physicalPresenceCMDEnable)
{
uint32_t ret = 0;
STACK_TPM_BUFFER( subcap );
STACK_TPM_BUFFER( resp );
STACK_TPM_BUFFER( tb );
TPM_PERMANENT_FLAGS permanentFlags;
if (ret == 0) {
STORE32(subcap.buffer, 0, TPM_CAP_FLAG_PERMANENT );
subcap.used = 4;
ret = TPM_GetCapability(TPM_CAP_FLAG,
&subcap,
&resp);
if (ret != 0) {
printf("Error %s from TPM_GetCapability\n",
TPM_GetErrMsg(ret));
}
}
if (ret == 0) {
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
ret = TPM_ReadPermanentFlags(&tb, 0, &permanentFlags, resp.used);
if ( ( ret & ERR_MASK ) != 0 || ret > resp.used) {
printf("TPM_ReadPermanentFlags: ret %08x, responselen %d\n", ret, resp.used);
printf("TPM_ReadPermanentFlags: Error parsing response!\n");
}
else {
ret = 0;
}
}
if (ret == 0) {
*physicalPresenceCMDEnable = permanentFlags.physicalPresenceCMDEnable;
}
return ret;
}
int main(int argc, char *argv[])
{
int ret;
int i; /* argc iterator */
TPM_setlog(0); /* turn off verbose output */
for (i=1 ; i<argc ; i++) {
if (!strcmp(argv[i], "-h")) {
printUsage();
}
else if (!strcmp(argv[i], "-v")) {
TPM_setlog(1);
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
ret = TPM_DisableForceClear();
if (0 != ret) {
printf("DisableForceClear returned error '%s' (%d).\n",
TPM_GetErrMsg(ret),
ret);
}
exit(ret);
}
int main(int argc, char *argv[])
{
int ret = 0;
int i = 1;
TPM_setlog(0); /* turn off verbose output */
for (i=1 ; i<argc ; i++) {
if (!strcmp(argv[i], "-h")) {
printUsage();
}
else if (!strcmp(argv[i], "-v")) {
TPM_setlog(1);
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
ret = TPM_SetOwnerInstall(1);
if (ret != 0) {
printf(" ERROR: %s from TPM_SetOwnerInstall\n",
TPM_GetErrMsg(ret));
}
exit(ret);
}
int main(int argc, char *argv[])
{
int ret;
struct stat sbuf;
uint32_t parhandle; /* handle of parent key */
unsigned char blob[4096]; /* resulting sealed blob */
unsigned int bloblen; /* blob length */
unsigned char passptr1[20] = {0};
int fd, outlen;
char totp[7];
parhandle = 0x40000000;
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
perror("Unable to open file");
return -1;
}
ret = fstat(fd, &sbuf);
if (ret) {
perror("Unable to stat file");
return -1;
}
bloblen = sbuf.st_size;
ret = read(fd, blob, bloblen);
if (ret != bloblen) {
fprintf(stderr, "Unable to read data\n");
return -1;
}
ret = TPM_Unseal(parhandle, /* KEY Entity Value */
passptr1, /* Key Password */
NULL,
blob, bloblen,
key, &outlen);
if (ret == 24) {
fprintf(stderr, "TPM refused to decrypt key - boot process attests that it is modified\n");
return -1;
}
if (ret != 0) {
printf("Error %s from TPM_Unseal\n", TPM_GetErrMsg(ret));
exit(6);
}
if (outlen != keylen) {
fprintf(stderr, "Returned buffer is incorrect length\n");
return -1;
}
ret = oath_totp_generate(key, keylen, time(NULL), 30, 0, 6, totp);
if (ret != 0) {
fprintf(stderr, "Error generating totp value\n");
return -1;
}
printf("%s\n", totp);
}
int main(int argc, char *argv[])
{
int ret;
unsigned char passhash[TPM_HASH_SIZE]; /* hash of parent key password */
unsigned char datahash[TPM_HASH_SIZE]; /* hash of data file */
unsigned char sig[4096]; /* resulting signature */
uint32_t siglen; /* signature length */
unsigned char *passptr;
FILE *sigfile;
TPM_setlog(0); /* turn off verbose output */
ParseArgs(argc, argv);
if ((keyhandle == 0) ||
(message == NULL) ||
(sigfilename == NULL)) {
printf("Missing parameter\n");
printUsage();
}
/*
** use the SHA1 hash of the password string as the Key Authorization Data
*/
if (keypass != NULL)
{
TSS_sha1(keypass,strlen(keypass),passhash);
passptr = passhash;
}
else passptr = NULL;
/*
** hash the message
*/
TSS_sha1(message,strlen(message),datahash);
ret = TPM_Sign(keyhandle, /* Key Handle */
passptr, /* key Password */
datahash,sizeof (datahash), /* data to be signed, length */
sig,&siglen); /* buffer to receive sig, int to receive sig length */
if (ret != 0)
{
printf("Error %s from TPM_Sign\n",TPM_GetErrMsg(ret));
exit(1);
}
sigfile = fopen(sigfilename, "wb");
if (sigfile == NULL)
{
printf("Unable to open output file '%s'\n", sigfilename);
exit(4);
}
ret = fwrite(sig,1,siglen,sigfile);
if (ret != (int)siglen)
{
printf("I/O Error while writing output file '%s'\n", sigfilename);
exit(5);
}
fclose(sigfile);
exit(0);
}
int main(int argc, char *argv[])
{
unsigned char data[TPM_HASH_SIZE];
int ret;
int index = -1;
int j = 0;
int i = 1;
TPM_setlog(0);
while (i < argc) {
if (!strcmp("-ix",argv[i])) {
i++;
if (i < argc) {
if (1 != sscanf(argv[i],"%x",&index)) {
printf("Could not parse the index number.\n");
exit(-1);
}
} else {
printf("Missing parameter for -ix.\n");
usage();
}
}
else if (!strcmp("-v",argv[i])) {
TPM_setlog(1);
}
else if (!strcmp("-h",argv[i])) {
usage();
}
else {
printf("\n%s is not a valid option\n",argv[i]);
usage();
}
i++;
}
if (index == -1) {
printf("Missing -ix parameter\n");
usage();
}
ret = TPM_DirRead(index, data);
if (0 != ret) {
printf("DirRead returned error '%s'.\n",
TPM_GetErrMsg(ret));
} else {
printf("Content of DIR %d: ",index);
while (j < (int)sizeof(data)) {
printf("%02x",data[j]);
j++;
}
printf("\n");
}
exit(ret);
}
static uint32_t swapInKey(uint32_t handle)
{
char *filename = createKeyFilename(handle);
STACK_TPM_BUFFER(context);
unsigned char * mycontext = NULL;
uint32_t contextSize;
uint32_t newhandle;
uint32_t ret;
if (NULL == filename) {
ret = ERR_MEM_ERR;
}
ret = TPM_ReadFile(filename,&mycontext,&contextSize);
if ((ret & ERR_MASK)) {
#if 0
printf("level: %d\n",g_num_transports);
#endif
printf("Could not read from keyfile %s.\n",filename);
return ret;
}
SET_TPM_BUFFER(&context, mycontext, contextSize);
free(mycontext);
ret = TPM_LoadContext(handle,
1,
&context,
&newhandle);
if (ret != 0) {
printf("Got error '%s' while swapping in key 0x%08x.\n",
TPM_GetErrMsg(ret),
handle);
}
if (handle != newhandle) {
printf("keyswap: "
"new handle 0x%08x not the same as old one 0x%08x.\n",
newhandle, handle);
}
if (ret == 0) {
unlink(filename);
}
free(filename);
#if 0
if (ret == 0) {
printf("Swapped in key with handle %08x.\n",handle);
} else {
printf("Could NOT swap in key with handle %08x.\n",handle);
}
#endif
return ret;
}
int main(int argc, char *argv[])
{
int ret = 0;
unsigned char *passptr1;
char * password = NULL;
unsigned char passhash1[20]; /* hash of password */
int i = 1;
TPM_setlog(0);
while (i < argc) {
if (!strcmp(argv[i],"-pwdk")) {
i++;
if (i >= argc) {
printf("Parameter missing!\n");
usage();
}
password = argv[i];
} else
if (!strcmp(argv[i],"-v")) {
TPM_setlog(1);
} else
if (!strcmp(argv[i],"-h")) {
usage();
} else {
printf("\n%s is not a valid option\n", argv[i]);
usage();
}
i++;
}
if (password != NULL) {
TSS_sha1(password,strlen(password),passhash1);
passptr1 = passhash1;
} else {
printf("Missing parameter -pwdk\n");
exit(-1);
}
ret = TPM_RevokeTrust(passptr1);
if (0 != ret) {
printf("Error %s from TPM_RevokeTrust\n",
TPM_GetErrMsg(ret));
}
exit(ret);
}
int main(int argc, char *argv[])
{
int ret;
(void)argc;
(void)argv;
TPM_setlog(0);
ret = TPM_ResetEstablishmentBit();
if (0 != ret) {
printf("ResetEstablishmentBit returned error '%s' (%d).\n",
TPM_GetErrMsg(ret),
ret);
}
exit(ret);
}
static int addKeyToMSAList(TPM_MSA_COMPOSITE * msalist, char * filename)
{
int ret = 0;
int len = strlen(filename);
if (!strcmp(&filename[len-4],".pem")) {
printf("Cannot deal with .pem files, yet.\n");
ret = -1;
} else
if (!strcmp(&filename[len-4],".key") ||
!strcmp(&filename[len-4],".pub")) {
struct keydata key;
memset(&key, 0x0, sizeof(key));
ret = TPM_ReadKeyfile(filename, &key);
if ((ret & ERR_MASK)) {
memset(&key, 0x0, sizeof(key));
ret = TPM_ReadPubKeyfile(filename, &key.pub);
if ((ret & ERR_MASK)) {
printf("Error reading keyfile: %s\n",
TPM_GetErrMsg(ret));
return ret;
}
}
if (ret == 0) {
msalist->MSAlist++;
msalist->migAuthDigest =
realloc(msalist->migAuthDigest,
msalist->MSAlist * TPM_HASH_SIZE);
TPM_HashPubKey(&key,
(unsigned char *)msalist->migAuthDigest +
(msalist->MSAlist-1)* TPM_DIGEST_SIZE);
}
} else {
printf("File '%s' in unknown format. Not .key or .pem.\n",
filename);
ret = -1;
}
return ret;
}
int main(int argc, char *argv[])
{
int ret = 0;
uint32_t handle;
int listsize;
int offset;
int i; /* argc iterator */
TPM_setlog(0); /* turn off verbose output */
for (i=1 ; i<argc ; i++) {
if (!strcmp(argv[i], "-h")) {
printUsage();
}
else if (!strcmp(argv[i], "-v")) {
TPM_setlog(1);
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
STACK_TPM_BUFFER(response);
if (ret == 0) {
ret = TPM_GetCapability(0x0000007,NULL,&response);
if (ret != 0)
{
printf("Error %s from TPM_GetCapability\n",TPM_GetErrMsg(ret));
exit(1);
}
listsize = LOAD16(response.buffer,0);
offset = 2;
for (i = 0; i < listsize; ++i)
{
handle = LOAD32(response.buffer,offset);
printf("Key handle %02d %08x\n",i,handle);
offset += 4;
}
}
exit(0);
}
int main(int argc, char *argv[])
{
int ret = 0;
int i; /* argc iterator */
TPM_BOOL state = TRUE;
TPM_setlog(0); /* turn off verbose output */
for (i=1 ; (i<argc) && (ret == 0) ; i++) {
if (strcmp(argv[i],"-c") == 0) {
state = FALSE;
}
else if (strcmp(argv[i],"-s") == 0) {
state = TRUE;
}
else if (strcmp(argv[i],"-h") == 0) {
ret = ERR_BAD_ARG;
print_usage();
}
else if (strcmp(argv[i],"-v") == 0) {
TPM_setlog(1);
}
else {
printf("\n%s is not a valid option\n", argv[i]);
ret = ERR_BAD_ARG;
print_usage();
}
}
if (ret == 0) {
ret = TPM_PhysicalSetDeactivated(state);
if (ret != 0) {
printf("TPM_PhysicalSetDeactivated returned '%s' (%d).\n",
TPM_GetErrMsg(ret),
ret);
}
}
return ret;
}
int main(int argc, char *argv[])
{
int ret;
struct stat sbuf;
uint32_t parhandle; /* handle of parent key */
unsigned char blob[4096]; /* resulting sealed blob */
unsigned int bloblen = 322; /* blob length */
unsigned char passptr1[20] = {0};
int fd, outlen, i;
char totp[7];
parhandle = 0x40000000;
ret = TPM_NV_ReadValue(0x00004d47, 0, 322, blob, &bloblen, NULL);
if (ret) {
for (i=1; i<argc; i++) {
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
argv++;
}
}
if (fd < 0) {
perror("Unable to open file");
return -1;
}
ret = fstat(fd, &sbuf);
if (ret) {
perror("Unable to stat file");
return -1;
}
bloblen = sbuf.st_size;
ret = read(fd, blob, bloblen);
if (ret != bloblen) {
fprintf(stderr, "Unable to read data\n");
return -1;
}
if (strncmp(argv[1], efivarfs, strlen(efivarfs)) == 0) {
bloblen -= sizeof(int);
memmove (blob, blob + sizeof(int), bloblen);
}
}
ret = TPM_Unseal(parhandle, /* KEY Entity Value */
passptr1, /* Key Password */
NULL,
blob, bloblen,
key, &outlen);
if (ret == 24) {
fprintf(stderr, "TPM refused to decrypt key - boot process attests that it is modified\n");
return -1;
}
if (ret != 0) {
printf("Error %s from TPM_Unseal\n", TPM_GetErrMsg(ret));
exit(6);
}
if (outlen != keylen) {
fprintf(stderr, "Returned buffer is incorrect length\n");
return -1;
}
if (0)
{
printf("Decrypted secret:");
for(int i = 0 ; i < outlen ; i++)
printf(" %02x", key[i]);
printf("\n");
}
uint32_t token = oauth_calc(time(NULL), key, keylen); //, time(NULL), 30, 0, 6, totp);
printf("%06d\n", token);
}
int main(int argc, char * argv[]) {
char * ownerpass = NULL;
char * counterpass = NULL;
uint32_t parhandle; /* handle of parent key */
unsigned char * passptr1 = NULL;
unsigned char * passptr2 = NULL;
unsigned char passhash1[20];
unsigned char passhash2[20];
uint32_t ret;
int i = 0;
uint32_t label = 0xffffffff;
uint32_t counterId = 0;
unsigned char counterValue[TPM_COUNTER_VALUE_SIZE];
i = 1;
TPM_setlog(0);
while (i < argc) {
if (!strcmp("-pwdo",argv[i])) {
i++;
if (i < argc) {
ownerpass = argv[i];
} else {
printf("Missing parameter for -pwdo\n");
usage();
}
}
else if (!strcmp("-la",argv[i])) {
i++;
if (i < argc) {
label = atoi(argv[i]);
} else {
printf("Missing parameter for -la\n");
usage();
}
}
else if (!strcmp("-pwdc",argv[i])) {
i++;
if (i < argc) {
counterpass = argv[i];
} else {
printf("Missing parameter for -pwdc\n");
usage();
}
}
else if (!strcmp("-v",argv[i])) {
TPM_setlog(1);
}
else if (!strcmp(argv[i], "-h")) {
usage();
}
else {
printf("\n%s is not a valid option\n",argv[i]);
usage();
}
i++;
}
if ((ownerpass == NULL) ||
(counterpass == NULL) ||
(label == 0xffffffff)) {
printf("Input parameters wrong or missing!\n");
usage();
}
printf("Using ownerpass : %s\n",ownerpass);
printf("Using counterpass: %s\n",counterpass);
/*
* convert parent key handle from hex
*/
parhandle = 0x00000000;
TSS_sha1(ownerpass,strlen(ownerpass),passhash1);
passptr1 = passhash1;
TSS_sha1(counterpass,strlen(counterpass),passhash2);
passptr2 = passhash2;
/*
* Create a counter
*/
ret = TPM_CreateCounter(parhandle,
passptr1,
label,
passptr2,
&counterId,
counterValue);
if (0 != ret) {
printf("Got error %s (0x%x) from TPM_CreateCounter.\n",
TPM_GetErrMsg(ret),
ret);
} else {
printf("New counter id: %d\n",counterId);
i = 0;
printf("Counter start value: ");
while (i < TPM_COUNTER_VALUE_SIZE) {
printf("%02X",counterValue[i]);
i++;
}
printf("\n");
}
return ret;
}
int main(int argc, char *argv[])
{
unsigned char nonce[TPM_NONCE_SIZE];
unsigned char digest[TPM_DIGEST_SIZE];
unsigned char calcdigest[TPM_DIGEST_SIZE];
uint32_t ret;
struct keydata key;
STACK_TPM_BUFFER(serKeyData)
uint32_t serKeySize;
char * pubKeyFile = NULL;
uint32_t buffersize;
char * buffer = NULL;
int index = 1;
if (argc >= 3 && 0 == strcmp(argv[index],"-v")) {
TPM_setlog(1);
index++;
} else {
TPM_setlog(0);
}
if (index >= argc) {
usage();
exit(-1);
}
pubKeyFile = argv[index];
if (NULL == pubKeyFile) {
usage();
exit(-1);
}
TSS_gennonce(nonce);
ret = TPM_ReadKeyfile(pubKeyFile, &key);
if ( ( ret & ERR_MASK ) != 0 ) {
printf("Error - could not read key file.\n");
exit (-1);
}
ret = TPM_WriteKeyPub(&serKeyData, &key);
if ( ( ret & ERR_MASK ) != 0 ) {
exit (-1);
}
serKeySize = ret;
ret = TPM_ReadManuMaintPub(nonce, digest);
if ( 0 != ret ) {
printf("Error %s from ReadManuMainPub.\n",
TPM_GetErrMsg(ret));
exit(ret);
}
/*
* Now check the digest against the serialized public key
* and the hash.
*/
buffersize = serKeySize + sizeof(nonce);
buffer = malloc(buffersize);
if (NULL == buffer) {
exit (-1);
}
memcpy(buffer,
serKeyData.buffer,
serKeySize);
memcpy(&buffer[serKeySize],
nonce,
sizeof(nonce));
TSS_sha1(buffer, buffersize, calcdigest);
free(buffer);
if (0 == memcmp(calcdigest, digest, sizeof(digest))) {
printf("The same public key is in the TPM.\n");
ret = 0;
} else {
printf("Another public key is in the TPM.\n");
ret = -1;
}
exit(ret);
}
int main(int argc, char * argv[]) {
char * counterpass = NULL;
unsigned char * passptr1 = NULL;
unsigned char passhash1[20];
uint32_t ret;
int i = 0;
uint32_t id = 0xffffffff;
unsigned char buffer[10];
i = 1;
TPM_setlog(0);
while (i < argc) {
if (!strcmp("-ix",argv[i])) {
i++;
if (i < argc) {
id = atoi(argv[i]);
} else {
printf("Missing mandatory parameter for -ix.\n");
usage();
exit(-1);
}
} else
if (!strcmp("-pwdc",argv[i])) {
i++;
if (i < argc) {
counterpass = argv[i];
} else {
printf("Missing parameter for -pwdc.\n");
usage();
exit(-1);
}
} else
if (!strcmp("-v",argv[i])) {
TPM_setlog(1);
} else
if (!strcmp("-h",argv[i])) {
usage();
exit(-1);
} else {
printf("\n%s is not a valid option\n",argv[i]);
usage();
exit(-1);
}
i++;
}
if (NULL == counterpass || id == 0xffffffff) {
printf("Input parameters wrong or missing!\n");
usage();
exit(-1);
}
printf("Using counterpass: %s\n",counterpass);
TSS_sha1(counterpass,strlen(counterpass),passhash1);
passptr1 = passhash1;
/*
* increment a counter
*/
for (i = 0 , ret = TPM_RETRY ; (ret == TPM_RETRY) && (i < 7) ; i++) {
ret = TPM_IncrementCounter(id,
passptr1,
buffer);
/* must be able to increment once every 5 seconds */
if (ret == TPM_RETRY) {
#ifdef TPM_POSIX
sleep(1);
#endif
#ifdef TPM_WINDOWS
Sleep(1000);
#endif
}
}
if (0 != ret) {
printf("Got error '%s' (0x%x) from TPM_IncrementCounter.\n",
TPM_GetErrMsg(ret),
ret);
} else {
printf("Value of the counter: ");
i = 0;
while (i < (int)sizeof(buffer)){
printf("%02x",buffer[i]);
i++;
}
printf("\n");
}
if (ret > 255) {
ret = -1;
}
return ret;
}
static int check_tpm(void)
{
unsigned char keybuf[TPM_MAX_KEY_SIZE];
unsigned char pcrvalue[TPM_AUTH_SIZE];
unsigned char srkauth[TPM_AUTH_SIZE];
uint32_t ret, srk_handle;
unsigned int keylen;
keydata k, key;
int tpmfp;
/* check /dev/tpm0 */
if ((tpmfp = open("/dev/tpm0", O_RDWR)) < 0) {
printf("Unable to open /dev/tpm0\n");
exit(-1);
}
close(tpmfp);
/* try a TPM_Reset (should work even if TPM disabled) */
if((ret=TPM_Reset())){
printf("TPM_Reset failed, error %s\n", TPM_GetErrMsg(ret));
exit(-2);
}
/* check if TPM enabled with TPM_PcrRead */
if((ret=TPM_PcrRead(0L,pcrvalue))){
printf("TPM_PcrRead failed, error %s\n", TPM_GetErrMsg(ret));
exit(-3);
}
/* check if TPM already has default IBM CSS owner */
srk_handle=TPM_SRK_HANDLE;
TSS_sha1((unsigned char *)SRKPASS,8,srkauth);
k.keyflags = 0;
k.authdatausage = 0; /* key requires no password */
k.privkeylen = 0; /* no private key specified here */
k.pub.algorithm = 0x00000099; /* BOGUS ALG */
k.keyusage = 0x0014; /* key Usage - 0x0014 = bind */
k.pub.encscheme = 0x0003; /* encryption scheme 3 RSA */
k.pub.sigscheme = 0x0001; /* signature scheme none */
k.pub.keybitlen = 2048; /* RSA modulus size 2048 bits */
k.pub.numprimes = 2; /* required */
k.pub.expsize = 0; /* RSA exponent - default 0x010001 */
k.pub.keylength = 0; /* key not specified here */
k.pub.pcrinfolen = 0; /* no PCR's used at this time */
ret=TPM_CreateWrapKey(srk_handle,srkauth,
NULL,NULL, &k,&key,keybuf,&keylen);
if(ret==TPM_AUTHFAIL){
printf("TPM already has unknown owner\n"),
exit(-4);
}
if(ret==TPM_BAD_KEY_PROPS){
printf("TPM is already IBM CSS managed\n");
return(0);
}
if(ret==TPM_NOSRK){
printf("TPM is already owned\n");
return(1);
}
printf("Unexpected return code %d\n",ret);
exit(-5);
}
int main(int argc, char *argv[])
{
int ret;
struct stat sbuf;
unsigned char keyblob[4096];
unsigned int keyblen;
unsigned char outblob[4096];
unsigned int outblen;
unsigned int handle;
unsigned char filename[256];
unsigned char filename2[256];
unsigned char parphash[20];
unsigned char newphash[20];
unsigned char keyphash[20];
unsigned char *passptr1;
FILE *outfile;
FILE *ainfile;
keydata key;
unsigned char *keypass;
unsigned char *newpass;
unsigned char *keyname;
unsigned char *parhndl;
int nxtarg;
nxtarg = ParseArgs(argc, argv);
if (argc < (nxtarg + 4))
usage();
TPM_setlog(0);
parhndl = argv[nxtarg + 0];
keyname = argv[nxtarg + 1];
keypass = argv[nxtarg + 2];
newpass = argv[nxtarg + 3];
/*
** convert parent key handle from hex
*/
ret = sscanf(parhndl, "%x", &handle);
if (ret != 1) {
fprintf(stderr, "Invalid argument '%s'\n", parhndl);
exit(2);
}
/*
* use SHA1 hash of password string as Parent Key Authorization
*/
if (parpass != NULL) {
TSS_sha1(parpass, strlen(parpass), parphash);
passptr1 = parphash;
} else
passptr1 = NULL;
/*
** use SHA1 hash of password string as Key Authorization Data
*/
TSS_sha1(keypass, strlen(keypass), keyphash);
/*
** use SHA1 hash of password string as New Authorization Data
*/
TSS_sha1(newpass, strlen(newpass), newphash);
/*
** read the key blob
*/
ainfile = fopen(keyname, "r");
if (ainfile == NULL) {
fprintf(stderr, "Unable to open key file\n");
exit(3);
}
stat(keyname, &sbuf);
keyblen = (int) sbuf.st_size;
ret = fread(keyblob, 1, keyblen, ainfile);
if (ret != keyblen) {
fprintf(stderr, "Unable to read key file\n");
exit(4);
}
fclose(ainfile);
TSS_KeyExtract(keyblob, &key);
ret = TPM_ChangeAuth(handle, passptr1, keyphash, newphash, &key);
if (ret != 0) {
fprintf(stderr, "Error %s from TPM_ChangeAuth\n",
TPM_GetErrMsg(ret));
exit(5);
}
ret = TPM_BuildKey(outblob, &key);
if ((ret & ERR_MASK) != 0)
return ret;
outblen = ret;
sprintf(filename2, "%s.save", keyname);
sprintf(filename, "%s", keyname);
ret = rename(filename, filename2);
if (ret != 0) {
fprintf(stderr, "Unable to rename old key file\n");
exit(6);
}
outfile = fopen(filename, "w");
if (outfile == NULL) {
fprintf(stderr, "Unable to create new key file\n");
exit(7);
}
ret = fwrite(outblob, 1, outblen, outfile);
if (ret != outblen) {
fprintf(stderr, "Unable to write new key file\n");
exit(8);
}
fclose(outfile);
exit(0);
}
int main(int argc, char *argv[])
{
int ret; /* general return value */
uint32_t keyhandle = 0; /* handle of quote key */
unsigned int pcrmask = 0; /* pcr register mask */
unsigned char passhash1[TPM_HASH_SIZE]; /* hash of key password */
unsigned char data[TPM_HASH_SIZE];/* nonce data */
STACK_TPM_BUFFER(signature);
pubkeydata pubkey; /* public key structure */
RSA *rsa; /* openssl RSA public key */
unsigned char *passptr;
TPM_PCR_SELECTION selection;
TPM_PCR_INFO_SHORT s1;
TPM_QUOTE_INFO2 quoteinfo;
STACK_TPM_BUFFER( serQuoteInfo )
uint32_t pcrs;
int i;
uint16_t sigscheme = TPM_SS_RSASSAPKCS1v15_SHA1;
TPM_BOOL addVersion = FALSE;
STACK_TPM_BUFFER(versionblob);
static char *keypass = NULL;
TPM_setlog(0); /* turn off verbose output from TPM driver */
for (i=1 ; i<argc ; i++) {
if (strcmp(argv[i],"-hk") == 0) {
i++;
if (i < argc) {
/* convert key handle from hex */
if (1 != sscanf(argv[i], "%x", &keyhandle)) {
printf("Invalid -hk argument '%s'\n",argv[i]);
exit(2);
}
}
else {
printf("-hk option needs a value\n");
printUsage();
}
}
else if (!strcmp(argv[i], "-pwdk")) {
i++;
if (i < argc) {
keypass = argv[i];
}
else {
printf("Missing parameter to -pwdk\n");
printUsage();
}
}
else if (strcmp(argv[i],"-bm") == 0) {
i++;
if (i < argc) {
/* convert key handle from hex */
if (1 != sscanf(argv[i], "%x", &pcrmask)) {
printf("Invalid -bm argument '%s'\n",argv[i]);
exit(2);
}
}
else {
printf("-bm option needs a value\n");
printUsage();
}
}
else if (!strcmp(argv[i], "-vinfo")) {
addVersion = TRUE;
printf("Adding version info.\n");
}
else if (!strcmp(argv[i], "-h")) {
printUsage();
}
else if (!strcmp(argv[i], "-v")) {
TPM_setlog(1);
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
if ((keyhandle == 0) ||
(pcrmask == 0)) {
printf("Missing argument\n");
printUsage();
}
memset(&s1, 0x0, sizeof(s1));
/*
** Parse and process the command line arguments
*/
/* get the SHA1 hash of the password string for use as the Key Authorization Data */
if (keypass != NULL) {
TSS_sha1((unsigned char *)keypass,strlen(keypass),passhash1);
passptr = passhash1;
} else {
passptr = NULL;
}
/* for testing, use the password hash as the test nonce */
memcpy(data,passhash1,TPM_HASH_SIZE);
ret = TPM_GetNumPCRRegisters(&pcrs);
if (ret != 0) {
printf("Error reading number of PCR registers.\n");
exit(-1);
}
if (pcrs > TPM_NUM_PCR) {
printf("Library does not support that many PCRs.\n");
exit(-1);
}
memset(&selection, 0x0, sizeof(selection));
selection.sizeOfSelect = pcrs / 8;
for (i = 0; i < selection.sizeOfSelect; i++) {
selection.pcrSelect[i] = (pcrmask & 0xff);
pcrmask >>= 8;
}
/*
** perform the TPM Quote function
*/
ret = TPM_Quote2(keyhandle, /* key handle */
&selection, /* specify PCR registers */
addVersion, /* add Version */
passptr, /* Key Password (hashed), or null */
data, /* nonce data */
&s1, /* pointer to pcr info */
&versionblob, /* pointer to TPM_CAP_VERSION_INFO */
&signature); /* buffer to receive result, int to receive result length */
if (ret != 0) {
printf("Error '%s' from TPM_Quote2\n",TPM_GetErrMsg(ret));
exit(ret);
}
/*
** Get the public key and convert to an OpenSSL RSA public key
*/
ret = TPM_GetPubKey(keyhandle,passptr,&pubkey);
if (ret != 0) {
printf("Error '%s' from TPM_GetPubKey\n",TPM_GetErrMsg(ret));
exit(ret);
}
rsa = TSS_convpubkey(&pubkey);
/*
** fill the quote info structure and calculate the hashes needed for verification
*/
quoteinfo.tag = TPM_TAG_QUOTE_INFO2;
memcpy(&(quoteinfo.fixed),"QUT2",4);
quoteinfo.infoShort = s1;
memcpy(&(quoteinfo.externalData),data,TPM_NONCE_SIZE);
unsigned char *corey_ptr = (unsigned char *)"einfo;
unsigned int x;
printf("quote info: \n");
for (x=0;x<128;x++)
{
if (x != 0 && x % 16 == 0)
printf("\n");
printf("%02x ", corey_ptr[x]);
}
printf("\n");
/* create the hash of the quoteinfo structure for signature verification */
ret = TPM_WriteQuoteInfo2(&serQuoteInfo, "einfo);
if ( ( ret & ERR_MASK ) != 0) {
exit(-1);
}
printf("serquoteinfo: \n");
for (x=0;x<128;x++)
{
if (x != 0 && x % 16 == 0)
printf("\n");
printf("%02x ", serQuoteInfo.buffer[x]);
}
printf("\n");
/* append version information if given in response */
if (addVersion) {
printf("addversion is called\n");
memcpy(serQuoteInfo.buffer + serQuoteInfo.used,
versionblob.buffer,
versionblob.used);
serQuoteInfo.used += versionblob.used;
}
ret = TPM_ValidateSignature(sigscheme,
&serQuoteInfo,
&signature,
rsa);
if (ret != 0) {
printf("Verification failed\n");
} else {
printf("Verification succeeded\n");
}
RSA_free(rsa);
exit(ret);
}
int main(int argc, char *argv[])
{
int ret;
struct stat sbuf;
uint32_t parhandle; /* handle of parent key */
unsigned char blob[4096]; /* resulting sealed blob */
unsigned int bloblen = 322; /* blob length */
unsigned char passptr1[20] = {0};
int fd, outlen, i;
time_t t, delay;
parhandle = 0x40000000;
ret = TPM_NV_ReadValue(0x10004d47, 0, 322, blob, &bloblen, NULL);
if (ret != 0) {
for (i=1; i<argc; i++) {
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
argv++;
}
}
if (fd < 0) {
perror("Unable to open file");
return -1;
}
ret = fstat(fd, &sbuf);
if (ret) {
perror("Unable to stat file");
return -1;
}
bloblen = sbuf.st_size;
ret = read(fd, blob, bloblen);
if (ret != bloblen) {
fprintf(stderr, "Unable to read data\n");
return -1;
}
if (strncmp(argv[1], efivarfs, strlen(efivarfs)) == 0) {
bloblen -= sizeof(int);
memmove (blob, blob + sizeof(int), bloblen);
}
}
ret = TPM_Unseal(parhandle, /* KEY Entity Value */
passptr1, /* Key Password */
NULL,
blob, bloblen,
key, &outlen);
if (ret == 24) {
fprintf(stderr, "TPM refused to decrypt key - boot process attests that it is modified\n");
return -1;
}
if (ret != 0) {
printf("Error %s from TPM_Unseal\n", TPM_GetErrMsg(ret));
exit(6);
}
if (outlen != keylen) {
fprintf(stderr, "Returned buffer is incorrect length\n");
return -1;
}
ply_client = ply_boot_client_new();
ply_loop = ply_event_loop_new();
if (!ply_boot_client_connect (ply_client, (ply_boot_client_disconnect_handler_t) on_disconnect, NULL)) {
fprintf(stderr, "Plymouth not running\n");
return -1;
}
ply_boot_client_attach_to_event_loop(ply_client, ply_loop);
display_totp();
t = time(NULL);
delay = 30 - (t % 30);
ply_event_loop_watch_for_timeout(ply_loop, delay, on_timeout, NULL);
ply_event_loop_run(ply_loop);
return 0;
}
int main(int argc, char **argv)
{
int fd, size, i, ret;
uint32_t kh, pcrs;
unsigned char buf[1024], hash[20], pass[20];
char *srkpass, *keyfile, ch;
/* SHA1 hash of TPM's SRK password */
char *tpmhash = "\x71\x10\xed\xa4\xd0\x9e\x06\x2a\xa5\xe4\xa3"
"\x90\xb0\xa5\x72\xac\x0d\x2c\x02\x20";
char *nonce = "\x80\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0"
"\x0\x0\x0\x0\x1";
keydata k;
RSA *rpub;
srkpass = keyfile = NULL;
while ((ch = getopt(argc, argv, "hs:f:")) != -1) {
switch (ch) {
case 's':
srkpass = optarg;
break;
case 'f':
keyfile = optarg;
break;
case 'h':
default:
usage(argv[0]);
break;
}
}
if (!srkpass)
usage(argv[0]);
if (!keyfile)
keyfile = "key.blob";
SHA1(srkpass, strlen(srkpass), pass);
fd = open(keyfile, O_RDONLY);
if (fd == -1)
errx(1, "couldn't open %s\n", keyfile);
size = read(fd, buf, 1024);
if (size == -1)
errx(1, "couldn't read\n");
size = TSS_KeyExtract(buf, &k);
printf("keybuf size: %d\n", size);
close(fd);
printf("loading . . .\n");
/* 0x40000000 is the UID for the SRK */
if (ret = TPM_LoadKey(0x40000000, pass, &k, &kh)) {
printf("%s\n", TPM_GetErrMsg(ret));
errx(1, "TPM_LoadKey\n");
}
/* Quote PCR 0 */
printf("quoting . . .\n");
if (ret = TPM_Quote(kh, (0x00000001 << 0), pass, nonce, &pcomp, buf,
&size)) {
printf("%s\n", TPM_GetErrMsg(ret));
errx(1, "TPM_Quote\n");
}
/* TPM will run out of memory if you forget to evict keys. This can be
* fixed with a good ol' reboot.*/
printf("evicting. . .\n");
if (ret = TPM_EvictKey(kh)) {
printf("%s\n", TPM_GetErrMsg(ret));
errx(1, "TPM_EvictKey\n");
}
/* Compute composite hash */
SHA1((char*)&pcomp, sizeof(pcomp), hash);
printf("slen: %d\n", ntohs(pcomp.slen));
printf("select: 0x%x\n", pcomp.s);
printf("plen %d\n", ntohl(pcomp.plen));
printf("pcr hash: ");
for (i = 0; i < 20; i++)
printf("%02x ", pcomp.p[i]);
printf("\n");
printf("composite hash: ");
for (i = 0; i < 20; i++)
printf("%02x ", hash[i]);
printf("\n");
printf("signed blob len: %d\n", size);
printf("signed blob: ");
for (i = 0; i < size; i++)
printf("%02x ", buf[i]);
printf("\n");
/* See if the signed object matches the composite hash concatenated
* with the nonce */
signedhash.fixed[0] = 1; signedhash.fixed[1] = 1;
signedhash.fixed[2] = 0; signedhash.fixed[3] = 0;
signedhash.fixed[4] = 'Q'; signedhash.fixed[5] = 'U';
signedhash.fixed[6] = 'O'; signedhash.fixed[7] = 'T';
memcpy(&signedhash.comphash, hash, 20);
memcpy(&signedhash.nonce, nonce, 20);
SHA1((char*)&signedhash, sizeof(signedhash), hash);
/* Gives us an RSA public key from the TPM key */
rpub = TSS_convpubkey(&k.pub);
if (!rpub)
errx(1, "TSS_convpubkey\n");
if (!RSA_verify(NID_sha1, hash, 20, buf, size, rpub))
printf("SIGNATURE FAILED\n");
else
printf("Signature is correct\n");
return 0;
}
int main(int argc, char *argv[])
{
uint32_t startOrdinal = -1;
int ret;
int verbose = FALSE;
TPM_COUNTER_VALUE counter;
int i = 1;
char * keypass = NULL;
unsigned char keyAuth[TPM_HASH_SIZE];
unsigned char * keyAuthPtr = NULL;
uint32_t keyhandle = -1;
STACK_TPM_BUFFER(signature);
unsigned char digest[TPM_DIGEST_SIZE];
unsigned char ordinalDigest[TPM_DIGEST_SIZE];
unsigned char antiReplay[TPM_NONCE_SIZE];
TPM_setlog(0);
TSS_gennonce(antiReplay);
while (i < argc) {
if (!strcmp("-s",argv[i])) {
i++;
if (i < argc) {
sscanf(argv[i],"%d",&startOrdinal);
} else {
printf("Missing parameter for -s.\n");
usage();
}
} else
if (!strcmp("-h",argv[i])) {
i++;
if (i < argc) {
sscanf(argv[i],"%x",&keyhandle);
} else {
printf("Missing parameter for -h.\n");
usage();
}
} else
if (!strcmp("-p",argv[i])) {
i++;
if (i < argc) {
keypass = argv[i];
} else {
printf("Missing parameter for -p.\n");
usage();
}
} else
if (!strcmp("-v",argv[i])) {
verbose = TRUE;
TPM_setlog(1);
} else {
printf("\n%s is not a valid option\n", argv[i]);
usage();
}
i++;
}
(void)verbose;
if (-1 == (int)startOrdinal ||
-1 == (int)keyhandle) {
printf("Missing command line parameter.\n");
usage();
}
if (NULL != keypass) {
TSS_sha1(keypass,strlen(keypass),keyAuth);
keyAuthPtr = keyAuth;
}
ret = TPM_GetAuditDigestSigned(keyhandle,
FALSE,
keyAuthPtr,
antiReplay,
&counter,
digest,
ordinalDigest,
&signature);
if (0 != ret) {
printf("Error %s from GetAuditDigestSigned.\n",
TPM_GetErrMsg(ret));
} else {
TPM_SIGN_INFO tsi;
STACK_TPM_BUFFER(tsi_ser);
STACK_TPM_BUFFER(serial);
STACK_TPM_BUFFER(ctr_ser);
pubkeydata pubkey;
RSA *rsa;
i = 0;
printf("AuditDigest : ");
while (i < (int)sizeof(digest)) {
printf("%02X",digest[i]);
i++;
}
printf("\n");
i = 0;
printf("OrdinalDigest : ");
while (i < (int)sizeof(digest)) {
printf("%02X",ordinalDigest[i]);
i++;
}
printf("\n");
ret = TPM_GetPubKey(keyhandle, keyAuthPtr, &pubkey);
if (ret != 0) {
printf("Could not get public key of signing key.\n");
exit(-1);
}
rsa = TSS_convpubkey(&pubkey);
if (!rsa) {
printf("Could not convert public key.\n");
exit(-1);
}
tsi.tag = TPM_TAG_SIGNINFO;
memcpy(tsi.fixed, "ADIG", 4);
memcpy(tsi.replay, antiReplay, sizeof(antiReplay));
/* D4=ordinalDigest */
TPM_WriteCounterValue(&ctr_ser, &counter);
memcpy(&serial.buffer[0], digest, sizeof(digest));
memcpy(&serial.buffer[sizeof(digest)],
ctr_ser.buffer, ctr_ser.used);
memcpy(&serial.buffer[sizeof(digest)+ctr_ser.used],
ordinalDigest, sizeof(ordinalDigest));
serial.used = sizeof(digest) + ctr_ser.used + sizeof(ordinalDigest);
tsi.data.size = serial.used;
tsi.data.buffer = serial.buffer;
ret = TPM_WriteSignInfo(&tsi_ser, &tsi);
if ((ret & ERR_MASK)) {
printf("Error serializing TPM_SIGN_INFO.\n");
exit(-1);
}
ret = TPM_ValidateSignature(TPM_SS_RSASSAPKCS1v15_SHA1,
&tsi_ser,
&signature,
rsa);
if (ret != 0) {
printf("Error validating signature.\n");
exit(-1);
}
printf("Signature verification successful.\n");
}
exit(ret);
}
int main(int argc, char *argv[])
{
int ret;
char base32_key[BASE32_LEN(keylen)+1];
unsigned char uefiblob[4100];
unsigned char blob[4096]; /* resulting sealed blob */
unsigned int bloblen; /* blob length */
unsigned char wellknown[20] = {0};
unsigned char totpstring[64];
uint32_t pcrmask = 0x000003BF; // PCRs 0-5 and 7-9
const char * hostname = "TPMTOTP";
char *outfile_name;
FILE *infile;
FILE *outfile;
QRcode *qrcode;
#ifdef CONFIG_TSS
TSS_HCONTEXT context;
#endif
if (generate_key()) {
return -1;
}
pcrvals = malloc(NUM_PCRS * sizeof(uint8_t*));
CHECK_MALLOC(pcrvals);
static int base32_flag = 0;
static int qr_flag = 1;
static int nvram_flag = 0;
int option_index = 0;
static struct option long_options[] = {
{"pcrs", required_argument, 0, 'p'},
{"nvram", no_argument, &nvram_flag, 1},
{"no-qrcode", no_argument, &qr_flag, 0},
{"base32", no_argument, &base32_flag, 1},
{"help", no_argument, 0, 'h'},
{0,0,0,0}
};
if (argc == 1) {
print_help();
return -1;
}
int c;
while ((c = getopt_long(argc, argv, "p:nbh", long_options, &option_index)) != -1) {
switch (c) {
case 0: // Flag only
break;
case 'p':
pcrmask = parse_pcrs(optarg);
if (pcrmask == (uint32_t) -1)
return -1;
break;
case 'h':
print_help();
return 0;
case 'b':
base32_flag = 1;
break;
case 'n':
nvram_flag = 1;
break;
case 's':
qr_flag = 0;
break;
case '?': // Unrecognized Option
print_help();
return -1;
default:
print_help();
}
}
if (!nvram_flag) {
if (optind == argc) {
fprintf(stderr, "Output name required!\n");
print_help();
return -1;
} else {
outfile_name = argv[optind];
}
}
base32_encode(key, keylen, base32_key);
base32_key[BASE32_LEN(keylen)] = NULL;
#ifdef CONFIG_TSS
ret = Tspi_Context_Create(&context);
if (ret != TSS_SUCCESS) {
fprintf(stderr, "Unable to create TPM context\n");
return -1;
}
ret = Tspi_Context_Connect(context, NULL);
if (ret != TSS_SUCCESS) {
fprintf(stderr, "Unable to connect to TPM\n");
return -1;
}
ret = TSPI_SealCurrPCR(context, // context
0x40000000, // SRK
pcrmask,
wellknown, // Well-known SRK secret
wellknown, // Well-known SEAL secret
key, keylen, /* data to be sealed */
blob, &bloblen); /* buffer to receive result */
#else
ret = TPM_SealCurrPCR(
0x40000000, // SRK
pcrmask,
wellknown, // Well-known SRK secret
wellknown, // Well-known SEAL secret
key, keylen, /* data to be sealed */
blob, &bloblen); /* buffer to receive result */
#endif
if (ret != 0) {
fprintf(stderr, "Error %s from TPM_Seal\n",
TPM_GetErrMsg(ret));
//goto out;
}
sprintf(totpstring, "otpauth://totp/%s?secret=%s", hostname, base32_key);
//sprintf(totpstring, "%s", base32_key);
if (base32_flag) {
printf("%s\n", base32_key);
}
printf("%s\n", totpstring);
if (qr_flag) {
qrcode = QRcode_encodeString(totpstring, 0, QR_ECLEVEL_L,
QR_MODE_8, 1);
writeANSI(qrcode);
}
if (nvram_flag) {
uint32_t nvindex = 0x00004d47;
uint32_t permissions = TPM_NV_PER_OWNERREAD|TPM_NV_PER_OWNERWRITE;
#ifdef CONFIG_TSS
TSS_HNVSTORE nvObject;
TSS_FLAG nvattrs = 0;
ret = Tspi_Context_CreateObject(context, TSS_OBJECT_TYPE_NV,
nvattrs, &nvObject);
if (ret != TSS_SUCCESS) {
fprintf(stderr, "Unable to create nvram object: %x\n",
ret);
goto out;
}
ret = Tspi_SetAttribUint32(nvObject, TSS_TSPATTRIB_NV_INDEX, 0,
nvindex);
if (ret != TSS_SUCCESS) {
fprintf(stderr, "Unable to set index\n");
goto out;
}
ret = Tspi_SetAttribUint32(nvObject,
TSS_TSPATTRIB_NV_PERMISSIONS, 0,
permissions);
if (ret != TSS_SUCCESS) {
fprintf(stderr, "Unable to set permissions\n");
goto out;
}
ret = Tspi_SetAttribUint32(nvObject, TSS_TSPATTRIB_NV_DATASIZE,
0, bloblen);
if (ret != TSS_SUCCESS) {
fprintf(stderr, "Unable to set size\n");
goto out;
}
ret = Tspi_NV_DefineSpace(nvObject, NULL, NULL);
if (ret != TSS_SUCCESS && ret != (0x3000 | TSS_E_NV_AREA_EXIST)) {
fprintf(stderr, "Unable to define space: %x\n", ret);
goto out;
}
ret = Tspi_NV_WriteValue(nvObject, 0, bloblen, blob);
if (ret != TSS_SUCCESS) {
fprintf(stderr, "Unable to write to nvram\n");
goto out;
}
#else
unsigned char * ownauth = wellknown;
unsigned char * areaauth = wellknown;
TPM_PCR_INFO_SHORT *pcrInfoRead = NULL;
TPM_PCR_INFO_SHORT *pcrInfoWrite = NULL;
ret = TPM_NV_DefineSpace2(
ownauth,
nvindex,
bloblen,
permissions,
areaauth,
pcrInfoRead,
pcrInfoWrite);
//if (ret != TPM_SUCCESS && ret != (0x3000 | TSS_E_NV_AREA_EXIST)) {
if (ret != TPM_SUCCESS) {
fprintf(stderr, "Unable to define space: %x\n", ret);
goto out;
}
ret = TPM_NV_WriteValue(
nvindex,
0,
blob,
bloblen,
ownauth
);
if (ret != TPM_SUCCESS) {
fprintf(stderr, "Unable to write to nvram\n");
goto out;
}
#endif
} else {
outfile = fopen(outfile_name, "w");
if (outfile == NULL) {
fprintf(stderr, "Unable to open output file '%s'\n",
outfile_name);
goto out;
}
if (strncmp(outfile_name, efivarfs, strlen(efivarfs)) == 0) {
int attributes = 7; // NV, RT, BS
memcpy(uefiblob, &attributes, sizeof(int));
memcpy(uefiblob + sizeof(int), blob, bloblen);
bloblen += sizeof(int);
ret = fwrite(uefiblob, 1, bloblen, outfile);
} else {
ret = fwrite(blob, 1, bloblen, outfile);
}
if (ret != bloblen) {
fprintf(stderr,
"I/O Error while writing output file '%s'\n",
outfile_name);
goto out;
}
}
out:
#ifdef CONFIG_TSS
Tspi_Context_FreeMemory(context, NULL);
Tspi_Context_Close(context);
#endif
exit(ret);
}
int main(int argc, char *argv[])
{
uint32_t ret;
STACK_TPM_BUFFER(resp);
int index = 0;
STACK_TPM_BUFFER( subcap );;
TPM_setlog(0); /* turn off verbose output */
ParseArgs(argc, argv);
while ((int)matrx[index].cap != -1) {
if (cap == matrx[index].cap) {
break;
}
index++;
}
if (-1 == (int)matrx[index].cap) {
printf("Unknown or unsupported capability!\n");
exit(-1);
}
subcap.used = 0;
if (matrx[index].subcap_size > 0) {
if ((int)scap == -1) {
printf("Need subcap parameter for this capability!\n");
exit(-1);
}
if (0 == prepare_subcap(cap, &subcap, scap)) {
if (2 == matrx[index].subcap_size) {
STORE16(subcap.buffer,0,scap);
subcap.used = 2;
} else
if (matrx[index].subcap_size >= 4) {
STORE32(subcap.buffer,0,scap);
subcap.used = 4;
}
}
}
#if 0
/* This was for VTPM extensions and needs retest */
if (cap == TPM_CAP_MFR) {
int idx2 = 0;
while ((int)mfr_matrix[idx2].cap != -1) {
if (mfr_matrix[idx2].cap == scap) {
break;
}
idx2++;
}
if (mfr_matrix[idx2].subcap_size > 0) {
uint32_t used = subcap.used +
mfr_matrix[idx2].subcap_size;
while (subcap.used < used) {
if (argc <= nxtarg) {
printf("Need one more parameter for this "
"capability!\n");
exit(-1);
}
if (!strncmp("0x",argv[nxtarg],2)) {
sscanf(argv[nxtarg],"%x",&sscap);
} else {
sscanf(argv[nxtarg],"%d",&sscap);
}
nxtarg++;
if (2 == matrx[index].subcap_size) {
STORE16(subcap.buffer,
subcap.used,sscap);
subcap.used += 2;
} else
if (matrx[index].subcap_size >= 4) {
STORE32(subcap.buffer,
subcap.used,sscap);
subcap.used += 4;
}
}
}
}
#endif
if (0 == sikeyhandle) {
ret = TPM_GetCapability(cap,
&subcap,
&resp);
if (0 != ret) {
printf("TPM_GetCapability returned %s.\n",
TPM_GetErrMsg(ret));
exit(ret);
}
} else {
unsigned char antiReplay[TPM_HASH_SIZE];
unsigned char signature[2048];
uint32_t signaturelen = sizeof(signature);
pubkeydata pubkey;
RSA * rsa;
unsigned char sighash[TPM_HASH_SIZE];
unsigned char * buffer = NULL;
unsigned char * sigkeyhashptr = NULL;
unsigned char sigkeypasshash[TPM_HASH_SIZE];
if (NULL != sikeypass) {
TSS_sha1(sikeypass,strlen(sikeypass),sigkeypasshash);
sigkeyhashptr = sigkeypasshash;
}
TSS_gennonce(antiReplay);
ret = TPM_GetPubKey(sikeyhandle,
sigkeyhashptr,
&pubkey);
if (0 != ret) {
printf("Error while trying to access the signing key's public key.\n");
exit(-1);
}
rsa = TSS_convpubkey(&pubkey);
ret = TPM_GetCapabilitySigned(sikeyhandle,
sigkeyhashptr,
antiReplay,
cap,
&subcap,
&resp,
signature, &signaturelen);
if (0 != ret) {
printf("TPM_GetCapabilitySigned returned %s.\n",
TPM_GetErrMsg(ret));
exit(ret);
}
buffer = malloc(resp.used+TPM_NONCE_SIZE);
if (NULL == buffer) {
printf("Could not allocate buffer.\n");
exit(-1);
}
memcpy(&buffer[0], resp.buffer, resp.used);
memcpy(&buffer[resp.used], antiReplay, TPM_NONCE_SIZE);
TSS_sha1(buffer,
resp.used+TPM_NONCE_SIZE,
sighash);
free(buffer);
ret = RSA_verify(NID_sha1,
sighash,TPM_HASH_SIZE,
signature,signaturelen,
rsa);
if (1 != ret) {
printf("Error: Signature verification failed.\n");
exit(-1);
}
}
if (0 == resp.used) {
printf("Empty response.\n");
} else {
if (-1 == (int)scap) {
printf("Result for capability 0x%x is : ",cap);
} else {
printf("Result for capability 0x%x, subcapability 0x%x is : ",cap,scap);
}
if (TYPE_BOOL == matrx[index].result_size) {
if (resp.buffer[0] == 0) {
printf("FALSE\n");
} else {
printf("TRUE\n");
}
} else
if (TYPE_UINT32 == matrx[index].result_size) {
uint32_t rsp;
rsp = LOAD32(resp.buffer,0);
printf("0x%08X = %d\n",rsp,rsp);
} else
if (TYPE_UINT32_ARRAY == matrx[index].result_size) {
int i = 0;
printf("\n");
while (i+3 < (int)resp.used) {
uint32_t rsp = LOAD32(resp.buffer,i);
i+=4;
if (TPM_CAP_NV_LIST == cap) {
/* don't zero extend, grep needs the exact value for test suite */
printf("%d. Index : %d = 0x%x.\n",
i/4,
rsp,
rsp);
} else
if (TPM_CAP_KEY_HANDLE == cap) {
printf("%d. keyhandle : %d.\n",
i/4,
rsp);
} else {
printf("%d. item : %d.\n",
i/4,
rsp);
}
}
} else
if (TYPE_STRUCTURE == matrx[index].result_size) {
switch(cap) {
case TPM_CAP_FLAG:
{
if (scap == TPM_CAP_FLAG_PERMANENT) {
TPM_PERMANENT_FLAGS pf;
STACK_TPM_BUFFER(tb)
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
ret = TPM_ReadPermanentFlags(&tb, 0, &pf, resp.used);
if ( ( ret & ERR_MASK ) != 0 || ret > resp.used) {
printf("ret=%x, responselen=%d\n",ret,resp.used);
printf("Error parsing response!\n");
exit(-1);
}
printf("\n");
showPermanentFlags(&pf, resp.used);
} else
if (scap == TPM_CAP_FLAG_VOLATILE) {
TPM_STCLEAR_FLAGS sf;
STACK_TPM_BUFFER(tb);
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
ret = TPM_ReadSTClearFlags(&tb, 0, &sf);
if ( ( ret & ERR_MASK ) != 0 || ret > resp.used) {
printf("ret=%x, responselen=%d\n",ret,resp.used);
printf("Error parsing response!\n");
exit(-1);
}
printf("\n");
showVolatileFlags(&sf);
}
}
break;
case TPM_CAP_KEY_HANDLE:
{
uint16_t num = LOAD16(resp.buffer, 0);
uint32_t i = 0;
uint32_t handle;
printf("\n");
while (i < num) {
handle = LOAD32(resp.buffer,2+i*4);
printf("%d. handle: 0x%08X\n",
i,
handle);
i++;
}
}
break;
case TPM_CAP_NV_INDEX:
{
//char scratch_info[256];
unsigned char scratch_info[256];
uint32_t scratch_info_len;
TPM_NV_DATA_PUBLIC ndp;
uint32_t i, c;
STACK_TPM_BUFFER(tb)
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
ret = TPM_ReadNVDataPublic(&tb,
0,
&ndp);
if ( ( ret & ERR_MASK) != 0) {
printf("Could not deserialize the TPM_NV_DATA_PUBLIC structure.\n");
exit(-1);
}
printf("permission.attributes : %08X\n",(unsigned int)ndp.permission.attributes);
printf("ReadSTClear : %02X\n",ndp.bReadSTClear);
printf("WriteSTClear : %02X\n",ndp.bWriteSTClear);
printf("WriteDefine : %02X\n",ndp.bWriteDefine);
printf("dataSize : %08X = %d",(unsigned int)ndp.dataSize,
(unsigned int)ndp.dataSize);
c = 0;
for (i = 0; i < ndp.pcrInfoRead.pcrSelection.sizeOfSelect*8; i++) {
if (ndp.pcrInfoRead.pcrSelection.pcrSelect[(i / 8)] & (1 << (i & 0x7))) {
if (!c)
printf("\nRead PCRs selected: ");
else
printf(", ");
printf("%d", i);
c++;
}
}
if (c) {
char pcrmap[4], *pf;
memcpy(pcrmap, ndp.pcrInfoRead.pcrSelection.pcrSelect,
ndp.pcrInfoRead.pcrSelection.sizeOfSelect);
// printf("\npcrmap: %02x%02x%02x%02x\n", pcrmap[0], pcrmap[1],
// pcrmap[2], pcrmap[3]);
ret = TSS_GenPCRInfo(*(uint32_t *)pcrmap,
scratch_info,
&scratch_info_len);
printf("\nRead PCR Composite: ");
for (i = 0; i < 20; i++)
printf("%02x", ndp.pcrInfoRead.digestAtRelease[i] & 0xff);
printf("\n");
#if 1
pf = &scratch_info[5];
printf("\nCurrent PCR composite: ");
for (i = 0; i < 20; i++)
//printf("%02x", scratch_info.digestAtRelease[i] & 0xff);
printf("%02x", pf[i] & 0xff);
printf("\n");
#endif
if (!ret) {
printf("Matches current TPM state: ");
if (!memcmp(&scratch_info[5],
&ndp.pcrInfoRead.digestAtRelease,
20)) {
printf("Yes\n");
} else {
printf("No\n");
}
}
}
c = 0;
for (i = 0; i < ndp.pcrInfoWrite.pcrSelection.sizeOfSelect*8; i++) {
if (ndp.pcrInfoWrite.pcrSelection.pcrSelect[(i / 8)] & (1 << (i & 0x7))) {
if (!c)
printf("\nWrite PCRs selected: ");
else
printf(", ");
printf("%d", i);
c++;
}
}
if (c) {
printf("\nWrite PCR Composite: ");
for (i = 0; i < 20; i++)
printf("%02x", ndp.pcrInfoWrite.digestAtRelease[i] & 0xff);
printf("\n");
}
}
break;
case TPM_CAP_HANDLE:
{
uint16_t num = LOAD16(resp.buffer, 0);
uint16_t x = 0;
while (x < num) {
uint32_t handle = LOAD32(resp.buffer,
sizeof(num)+4*x);
printf("%02d. 0x%08X\n",x,handle);
x++;
}
}
break;
case TPM_CAP_VERSION_VAL:
{
int i = 0;
TPM_CAP_VERSION_INFO cvi;
STACK_TPM_BUFFER(tb)
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
ret = TPM_ReadCapVersionInfo(&tb,
0,
&cvi);
if ( ( ret & ERR_MASK) != 0) {
printf("Could not read the version info structure.\n");
exit(-1);
}
printf("\n");
printf("major : 0x%02X\n",cvi.version.major);
printf("minor : 0x%02X\n",cvi.version.minor);
printf("revMajor : 0x%02X\n",cvi.version.revMajor);
printf("revMinor : 0x%02X\n",cvi.version.revMinor);
printf("specLevel : 0x%04X\n",cvi.specLevel);
printf("errataRev : 0x%02X\n",cvi.errataRev);
printf("VendorID : ");
while (i < 4) {
printf("%02X ",cvi.tpmVendorID[i]);
i++;
}
printf("\n");
/* Print vendor ID in text if printable */
for (i=0 ; i<4 ; i++) {
if (isprint(cvi.tpmVendorID[i])) {
if (i == 0) {
printf("VendorID : ");
}
printf("%c", cvi.tpmVendorID[i]);
}
else {
break;
}
}
printf("\n");
printf("[not displaying vendor specific information]\n");
}
break;
#if 0 /* kgold: I don't think these are valid cap values */
case TPM_CAP_FLAG_PERMANENT:
{
TPM_PERMANENT_FLAGS pf;
STACK_TPM_BUFFER(tb)
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
if (resp.used == 21) {
ret = TPM_ReadPermanentFlagsPre103(&tb, 0, &pf);
} else {
ret = TPM_ReadPermanentFlags(&tb, 0, &pf);
}
if ( ( ret & ERR_MASK ) != 0 || ret > resp.used) {
printf("ret=%x, responselen=%d\n",ret,resp.used);
printf("Error parsing response!\n");
exit(-1);
}
printf("\n");
showPermanentFlags(&pf, resp.used);
}
break;
case TPM_CAP_FLAG_VOLATILE:
{
TPM_STCLEAR_FLAGS sf;
STACK_TPM_BUFFER(tb);
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
ret = TPM_ReadSTClearFlags(&tb, 0, &sf);
if ( ( ret & ERR_MASK ) != 0 || ret > resp.used) {
printf("ret=%x, responselen=%d\n",ret,resp.used);
printf("Error parsing response!\n");
exit(-1);
}
printf("\n");
showVolatileFlags(&sf);
}
break;
#endif
case TPM_CAP_DA_LOGIC:
{
uint32_t ctr;
TPM_BOOL lim = FALSE;
TPM_DA_INFO dainfo;
TPM_DA_INFO_LIMITED dainfo_lim;
STACK_TPM_BUFFER(tb);
TSS_SetTPMBuffer(&tb, resp.buffer, resp.used);
ret = TPM_ReadDAInfo(&tb, 0, &dainfo);
if ( ( ret & ERR_MASK) != 0 || ret > resp.used) {
ret = TPM_ReadDAInfoLimited(&tb, 0, &dainfo_lim);
if ( (ret & ERR_MASK ) != 0 || ret > resp.used) {
printf("ret=%x, responselen=%d\n",ret,resp.used);
printf("Error parsing response!\n");
exit(-1);
} else {
lim = TRUE;
}
}
printf("\n");
if (lim) {
printf("State : %d\n",dainfo_lim.state);
printf("Actions : 0x%08x\n",dainfo_lim.actionAtThreshold.actions);
ctr = 0;
while (ctr < dainfo_lim.vendorData.size) {
printf("%02x ",(unsigned char)dainfo_lim.vendorData.buffer[ctr]);
ctr++;
}
} else {
printf("State : %d\n",dainfo.state);
printf("currentCount : %d\n",dainfo.currentCount);
printf("thresholdCount : %d\n",dainfo.thresholdCount);
printf("Actions : 0x%08x\n",dainfo.actionAtThreshold.actions);
printf("actionDependValue : %d\n",dainfo.actionDependValue);
#if 0
ctr = 0;
while (ctr < dainfo_lim.vendorData.size) {
printf("%02x ",(unsigned char)dainfo_lim.vendorData.buffer[ctr]);
ctr++;
}
#endif
}
}
break;
}
} else
if (TYPE_VARIOUS == matrx[index].result_size) {
switch(cap) {
case TPM_CAP_MFR:
switch (scap) {
case TPM_CAP_PROCESS_ID:
{
uint32_t rsp;
rsp = LOAD32(resp.buffer,0);
printf("%d\n",rsp);
}
break;
}
break; /* TPM_CAP_MFR */
default:
/* Show booleans */
if (scap == TPM_CAP_PROP_OWNER ||
scap == TPM_CAP_PROP_DAA_INTERRUPT
) {
if (0 == resp.buffer[0]) {
printf("FALSE\n");
} else {
printf("TRUE\n");
}
} else /* check for array of 4 UINTs */
if (scap == TPM_CAP_PROP_TIS_TIMEOUT /* ||
scap == TPM_CAP_PROP_TIMEOUTS */) {
int i = 0;
while (i < 4) {
uint32_t val = LOAD32(resp.buffer,i * 4);
printf("%d ",
val);
i++;
}
printf("\n");
} else /* check for TPM_STARTUP_EFFECTS */
if (scap == TPM_CAP_PROP_STARTUP_EFFECT) {
TPM_STARTUP_EFFECTS se = 0;
ret = TPM_ReadStartupEffects(resp.buffer,
&se);
if ( ( ret & ERR_MASK ) != 0 ) {
printf("Could not read startup effects structure.\n");
exit(-1);
}
printf("0x%08X=%d\n",
(unsigned int)se,
(unsigned int)se);
printf("\n");
printf("Startup effects:\n");
printf("Effect on audit digest: %s\n", (se & (1 << 7))
? "none"
: "active");
printf("Audit Digest on TPM_Startup(ST_CLEAR): %s\n", ( se & (1 << 6))
? "set to NULL"
: "not set to NULL" );
printf("Audit Digest on TPM_Startup(any) : %s\n", ( se & (1 << 5))
? "set to NULL"
: "not set to NULL" );
printf("TPM_RT_KEY resource initialized on TPM_Startup(ST_ANY) : %s\n", (se & ( 1 << 4))
? "yes"
: "no");
printf("TPM_RT_AUTH resource initialized on TPM_Startup(ST_STATE) : %s\n", (se & ( 1 << 3))
? "yes"
: "no");
printf("TPM_RT_HASH resource initialized on TPM_Startup(ST_STATE) : %s\n", (se & ( 1 << 2))
? "yes"
: "no");
printf("TPM_RT_TRANS resource initialized on TPM_Startup(ST_STATE) : %s\n", (se & ( 1 << 1))
? "yes"
: "no");
printf("TPM_RT_CONTEXT session initialized on TPM_Startup(ST_STATE): %s\n", (se & ( 1 << 0))
? "yes"
: "no");
} else /* check for array of 3 UINTs */
if (scap == TPM_CAP_PROP_DURATION) {
int i = 0;
while (i < 4*3) {
uint32_t val = LOAD32(resp.buffer,i);
printf("%d ",
val);
i+= 4;
}
printf("\n");
} else /* check for TPM_COUNT_ID */
if (scap == TPM_CAP_PROP_ACTIVE_COUNTER) {
uint32_t val = LOAD32(resp.buffer,0);
printf("0x%08X=%d",val,val);
if (0xffffffff == val) {
printf(" (no counter is active)");
}
printf("\n");
} else { /* just a single UINT32 */
printf("%ld=0x%08lX.\n",
(long)LOAD32(resp.buffer, 0),
(long)LOAD32(resp.buffer, 0));
}
}
}
}
printf("\n");
exit(0);
}
int main(int argc, char * argv[]) {
char * data = NULL;
char * filename = NULL;
int i = 1;
int offset = 0;
uint32_t len;
uint32_t ret = 0;
unsigned char hashbuffer[TPM_HASH_SIZE];
unsigned char pcrValue[TPM_HASH_SIZE];
int index = -1;
TPM_BOOL verbose = FALSE;
uint32_t maxNumBytes = 0; /* return from TPM_SHA1Start */
TPM_setlog(0);
while (i < argc) {
if (!strcmp("-ic",argv[i])) {
i++;
if (i < argc) {
data = argv[i];
} else {
printf("Missing mandatory parameter for -ic.\n");
usage();
}
} else
if (!strcmp("-if",argv[i])) {
i++;
if (i < argc) {
filename = argv[i];
} else {
printf("Missing mandatory parameter for -if.\n");
usage();
}
} else
if (!strcmp("-ix",argv[i])) {
i++;
if (i < argc) {
index = atoi(argv[i]);
} else {
printf("Missing mandatory parameter for -ix.\n");
usage();
}
} else
if (!strcmp("-v",argv[i])) {
TPM_setlog(1);
verbose = TRUE;
} else
if (!strcmp("-h",argv[i])) {
usage();
} else {
printf("\n%s is not a valid option\n", argv[i]);
usage();
}
i++;
}
if (NULL == data && filename == NULL) {
printf("Input parameters wrong or missing!\n");
usage();
}
/* Common processing, for data or file */
ret = TPM_SHA1Start(&maxNumBytes);
if (0 != ret) {
printf("Error from TPM_SHA1Start(): %d (0x%x)\n",
ret,
ret);
exit(-1);
}
if (maxNumBytes < 64) {
printf("The size parameter returned from SHA1Start() is bad.\n");
exit(-1);
}
/* If the connection is to a hardware device, the driver limits the buffer size to
2048, even if the TPM can support a larger size.
The -20 is presumably for the TPM command packet tag, paramSize, ordinal,
numBytes, although this only adds up to 14 bytes.
*/
#if defined TPM_USE_CHARDEV || defined XCRYPTO_USE_CCA
maxNumBytes = MIN(maxNumBytes, (2 * 1024) - 20);
maxNumBytes &= ~63;
#else
/* Even if the connection is to a socket, it may be then through a proxy to a
hardware device. Setting this env variable flag again limits the buffer to
2048. */
if (getenv("TPM_HW_DRIVER") != NULL) {
maxNumBytes = MIN(maxNumBytes, (2 * 1024) - 20);
maxNumBytes &= ~63;
}
#endif
if (NULL != data) {
len = strlen(data);
printf("SHA1 hash for '%s': ",data);
offset = 0;
while (len > 64) {
unsigned int chunksize;
chunksize = MIN(maxNumBytes, len & ~63);
if (verbose)
printf("Chunksize to hash: %d\n",chunksize);
ret = TPM_SHA1Update(&data[offset], chunksize);
if (ret != 0) {
printf("Error %s from SHA1Update.\n",
TPM_GetErrMsg(ret));
exit(ret);
}
offset += chunksize;
len -= chunksize;
}
if (index >= 0) {
ret = TPM_SHA1CompleteExtend(&data[offset],len,
index,
hashbuffer,
pcrValue);
} else {
ret = TPM_SHA1Complete(&data[offset],len,hashbuffer);
}
if (0 == ret) {
printf("Hash: ");
i = 0;
while (i < (int)sizeof(hashbuffer)) {
printf("%02x",hashbuffer[i]);
i++;
}
printf("\n");
if (index >= 0) {
printf("New value of PCR: ");
i = 0;
while (i < (int)sizeof(pcrValue)) {
printf("%02x",pcrValue[i]);
i++;
}
printf("\n");
}
} else {
printf("Error '%s' from SHA1Complete/SHA1CompleteExtend.\n",
TPM_GetErrMsg(ret));
}
}
if (NULL != filename) {
FILE * f = fopen(filename,"rb");
if (NULL != f) {
int n = 0;
uint32_t chunksize;
char *buf;
uint32_t total = 0;
printf("SHA1 hash for file '%s': \n",filename);
buf = malloc(maxNumBytes);
if (!buf) {
printf("Could not allocated buffer.\n");
exit(-1);
}
while ((n = fread(buf,1,maxNumBytes,f)) >= 64) {
chunksize = MIN(maxNumBytes,
(uint32_t)(n & ~63));
if (verbose)
printf("Chunksize to hash: %d\n",
chunksize);
ret = TPM_SHA1Update(buf,chunksize);
if (ret != 0) {
printf("Error %s from SHA1Update.\n",
TPM_GetErrMsg(ret));
exit(-1);
}
total += chunksize;
if ((chunksize - n)) {
offset = chunksize;
n &= 63;
break;
}
}
total += n;
if (index >= 0) {
ret = TPM_SHA1CompleteExtend(&buf[offset],n,
index,
hashbuffer,
pcrValue);
} else {
ret = TPM_SHA1Complete(&buf[offset],n,hashbuffer);
}
fclose(f);
free(buf);
if (0 == ret) {
printf("Hash: ");
i = 0;
while (i < (int)sizeof(hashbuffer)) {
printf("%02x",hashbuffer[i]);
i++;
}
printf("\n");
if (index >= 0) {
printf("New value of PCR: ");
i = 0;
while (i < (int)sizeof(pcrValue)) {
printf("%02x",pcrValue[i]);
i++;
}
printf("\n");
}
} else {
printf("Error '%s' from SHA1Complete/SHA1CompleteExtend.\n",
TPM_GetErrMsg(ret));
}
} else {
printf("Could not find file '%s'.\n",filename);
}
}
return 0;
}
int main(int argc, char *argv[])
{
int ret;
char *ownpass = NULL;
char *newpass = NULL;
unsigned char ownphash[TPM_HASH_SIZE];
unsigned char newphash[TPM_HASH_SIZE];
int i;
TPM_setlog(0);
for (i=1 ; i<argc ; i++) {
if (!strcmp(argv[i], "-pwdo")) {
i++;
if (i < argc) {
ownpass = argv[i];
}
else {
printf("Missing parameter to -pwdo\n");
printUsage();
}
}
else if (!strcmp(argv[i], "-pwdn")) {
i++;
if (i < argc) {
newpass = argv[i];
}
else {
printf("Missing parameter to -pwdn\n");
printUsage();
}
}
else if (strcmp(argv[i],"-own") == 0) {
ownflag = 1;
}
else if (!strcmp(argv[i], "-h")) {
printUsage();
}
else if (!strcmp(argv[i], "-v")) {
TPM_setlog(1);
}
else {
printf("\n%s is not a valid option\n", argv[i]);
printUsage();
}
}
if ((ownpass == NULL) ||
(newpass == NULL)) {
printf("Missing password argument\n");
exit(2);
}
/*
** use the SHA1 hash of the password string as the TPM Owner Password
*/
TSS_sha1((unsigned char*)ownpass,strlen(ownpass),ownphash);
/*
** use the SHA1 hash of the password string as the New Authorization Data
*/
TSS_sha1((unsigned char*)newpass,strlen(newpass),newphash);
if (ownflag)
{
ret = TPM_ChangeOwnAuth(ownphash,newphash);
if (ret != 0)
{
printf("Error %s from TPM_ChangeOwnAuth\n",TPM_GetErrMsg(ret));
exit(1);
}
}
else
{
ret = TPM_ChangeSRKAuth(ownphash,newphash);
if (ret != 0)
{
printf("Error %s from TPM_ChangeSRKAuth\n",TPM_GetErrMsg(ret));
exit(1);
}
}
exit(0);
}
int main(int argc, char *argv[])
{
int ret;
uint32_t parhandle; /* handle of parent key */
unsigned char passhash[TPM_HASH_SIZE]; /* hash of parent key password */
unsigned char datahash[TPM_HASH_SIZE]; /* hash of data file */
unsigned char sig[4096]; /* resulting signature */
uint32_t siglen; /* signature length */
unsigned char *passptr;
char *indata;
FILE *sigfile;
int nxtarg;
nxtarg = ParseArgs(argc, argv);
if (argc < (nxtarg + 3) ) usage();
TPM_setlog(0); /* turn off verbose output */
/*
** convert parent key handle from hex
*/
ret = sscanf(argv[nxtarg+0],"%x",&parhandle);
if (ret != 1)
{
printf("Invalid argument '%s'\n",argv[nxtarg+0]);
exit(2);
}
/*
** use the SHA1 hash of the password string as the Key Authorization Data
*/
if (keypass != NULL)
{
TSS_sha1(keypass,strlen(keypass),passhash);
passptr = passhash;
}
else passptr = NULL;
/*
** read and hash the message
*/
indata = argv[nxtarg+1];
if (indata == NULL)
{
printf("Unable to get input data'\n");
exit(-2);
}
TSS_sha1(indata,strlen(indata),datahash);
ret = TPM_Sign(parhandle, /* Key Handle */
passptr, /* key Password */
datahash,sizeof (datahash), /* data to be signed, length */
sig,&siglen); /* buffer to receive sig, int to receive sig length */
if (ret != 0)
{
printf("Error %s from TPM_Sign\n",TPM_GetErrMsg(ret));
exit(1);
}
sigfile = fopen(argv[nxtarg+2],"wb");
if (sigfile == NULL)
{
printf("Unable to open output file '%s'\n",argv[nxtarg+2]);
exit(4);
}
ret = fwrite(sig,1,siglen,sigfile);
if (ret != (int)siglen)
{
printf("I/O Error while writing output file '%s'\n",argv[nxtarg+2]);
exit(5);
}
fclose(sigfile);
exit(0);
}
