/*
* Validate the signature over a PCR composite structure.
* Returns '0' on success, an error code otherwise.
*/
uint32_t TPM_ValidatePCRCompositeSignature(TPM_PCR_COMPOSITE *tpc,
unsigned char *antiReplay,
pubkeydata *pk,
struct tpm_buffer *signature,
uint16_t sigscheme)
{
uint32_t ret;
RSA *rsa; /* openssl RSA public key */
TPM_QUOTE_INFO tqi;
STACK_TPM_BUFFER (ser_tqi);
STACK_TPM_BUFFER(response);
STACK_TPM_BUFFER (ser_tpc);
/*
** Convert to an OpenSSL RSA public key
*/
rsa = TSS_convpubkey(pk);
ret = TPM_GetCapability(TPM_CAP_VERSION, NULL,
&response);
if (ret != 0) {
RSA_free(rsa);
return ret;
}
memcpy(&(tqi.version), response.buffer, response.used);
memcpy(&(tqi.fixed), "QUOT", 4);
memcpy(&(tqi.externalData), antiReplay, TPM_NONCE_SIZE);
ret = TPM_WritePCRComposite(&ser_tpc, tpc);
if ((ret & ERR_MASK)) {
RSA_free(rsa);
return ret;
}
/* create the hash of the PCR_composite data for the quoteinfo structure */
TSS_sha1(ser_tpc.buffer, ser_tpc.used, tqi.digestValue);
ret = TPM_WriteQuoteInfo(&ser_tqi, &tqi);
if ((ret & ERR_MASK)) {
RSA_free(rsa);
return ret;
}
ret = TPM_ValidateSignature(sigscheme,
&ser_tqi,
signature,
rsa);
RSA_free(rsa);
return 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)
{
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; /* 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);
}
uint32_t TPM_TakeOwnership(unsigned char *ownpass, unsigned char *srkpass,
keydata * key)
{
unsigned char take_owner_fmt[] = "00 c2 T l s @ @ % l % 00 %";
/* required OAEP padding P parameter */
unsigned char tpm_oaep_pad_str[] = { 'T', 'C', 'P', 'A' };
uint32_t ret;
int iret;
unsigned char tpmdata[TPM_MAX_BUFF_SIZE];
pubkeydata tpmpubkey; /* public endorsement key data */
uint32_t srkparamsize; /* SRK parameter buffer size */
unsigned char nonceeven[TPM_HASH_SIZE]; /* even nonce (from OIAPopen) */
RSA *pubkey; /* PubEK converted to OpenSSL format */
unsigned char padded[RSA_MODULUS_BYTE_SIZE];
keydata srk; /* key info for SRK */
unsigned char dummypass[TPM_HASH_SIZE]; /* dummy srk password */
unsigned char *spass; /* pointer to srkpass or dummy */
unsigned int i;
/* data to be inserted into Take Owner Request Buffer */
/* the uint32_t and uint16_t values are stored in network byte order */
uint32_t command; /* command ordinal */
uint16_t protocol; /* protocol ID */
uint32_t oencdatasize; /* owner auth data encrypted size */
unsigned char ownerencr[RSA_MODULUS_BYTE_SIZE];
uint32_t sencdatasize; /* srk auth data encrypted size */
unsigned char srkencr[RSA_MODULUS_BYTE_SIZE];
unsigned char srk_param_buff[TPM_SRK_PARAM_BUFF_SIZE];
uint32_t authhandle; /* auth handle (from OIAPopen) */
unsigned char nonceodd[TPM_HASH_SIZE]; /* odd nonce */
unsigned char authdata[TPM_HASH_SIZE]; /* auth data */
/* check that parameters are valid */
if (ownpass == NULL)
return ERR_NULL_ARG;
if (srkpass == NULL) {
memset(dummypass, 0, sizeof dummypass);
spass = dummypass;
} else
spass = srkpass;
/* set up command and protocol values for TakeOwnership function */
command = htonl(0x0d);
protocol = htons(0x05);
/* get the TPM Endorsement Public Key */
ret = TPM_ReadPubek(&tpmpubkey);
if (ret)
return ret;
/* convert the public key to OpenSSL format */
pubkey = TSS_convpubkey(&tpmpubkey);
if (pubkey == NULL)
return ERR_CRYPT_ERR;
memset(ownerencr, 0, sizeof ownerencr);
memset(srkencr, 0, sizeof srkencr);
/* Pad and then encrypt the owner data using the RSA public key */
iret = RSA_padding_add_PKCS1_OAEP(padded, RSA_MODULUS_BYTE_SIZE,
ownpass, TPM_HASH_SIZE,
tpm_oaep_pad_str,
sizeof tpm_oaep_pad_str);
if (iret == 0)
return ERR_CRYPT_ERR;
iret =
RSA_public_encrypt(RSA_MODULUS_BYTE_SIZE, padded, ownerencr,
pubkey, RSA_NO_PADDING);
if (iret < 0)
return ERR_CRYPT_ERR;
oencdatasize = htonl(iret);
/* Pad and then encrypt the SRK data using the RSA public key */
iret = RSA_padding_add_PKCS1_OAEP(padded, RSA_MODULUS_BYTE_SIZE,
spass, TPM_HASH_SIZE,
tpm_oaep_pad_str,
sizeof tpm_oaep_pad_str);
if (iret == 0)
return ERR_CRYPT_ERR;
iret =
RSA_public_encrypt(RSA_MODULUS_BYTE_SIZE, padded, srkencr,
pubkey, RSA_NO_PADDING);
if (iret < 0)
return ERR_CRYPT_ERR;
sencdatasize = htonl(iret);
RSA_free(pubkey);
if (ntohl(oencdatasize) < 0)
return ERR_CRYPT_ERR;
if (ntohl(sencdatasize) < 0)
return ERR_CRYPT_ERR;
/* fill the SRK-params key structure */
/* get tpm version */
ret =
TPM_GetCapability(0x00000006, NULL, 0, &(srk.version[0]), &i);
if (ret != 0)
return ret;
srk.keyusage = 0x0011; /* Storage Key */
srk.keyflags = 0;
if (srkpass != NULL)
srk.authdatausage = 0x01;
else
srk.authdatausage = 0x00;
srk.privkeylen = 0; /* private key not specified here */
srk.pub.algorithm = 0x00000001; /* RSA */
srk.pub.encscheme = 0x0003; /* RSA OAEP SHA1 MGF1 */
srk.pub.sigscheme = 0x0001; /* NONE */
srk.pub.keybitlen = RSA_MODULUS_BIT_SIZE;
srk.pub.numprimes = 2;
srk.pub.expsize = 0; /* defaults to 0x010001 */
srk.pub.keylength = 0; /* not used here */
srk.pub.pcrinfolen = 0; /* not used here */
/* convert to a memory buffer */
srkparamsize = TPM_BuildKey(srk_param_buff, &srk);
/* generate the odd nonce */
ret = TSS_gennonce(nonceodd);
if (ret == 0)
return ret;
/* initiate the OIAP protocol */
ret = TSS_OIAPopen(&authhandle, nonceeven);
if (ret != 0)
return ret;
/* calculate the Authorization Data */
ret =
TSS_authhmac(authdata, ownpass, TPM_HASH_SIZE, nonceeven,
nonceodd, 0, TPM_U32_SIZE, &command, TPM_U16_SIZE,
&protocol, TPM_U32_SIZE, &oencdatasize,
ntohl(oencdatasize), ownerencr, TPM_U32_SIZE,
&sencdatasize, ntohl(sencdatasize), srkencr,
srkparamsize, srk_param_buff, 0, 0);
if (ret != 0) {
TSS_OIAPclose(authhandle);
return ret;
}
/* insert all the calculated fields into the request buffer */
ret = TSS_buildbuff(take_owner_fmt, tpmdata,
command,
protocol,
ntohl(oencdatasize),
ownerencr,
ntohl(sencdatasize),
srkencr,
srkparamsize,
srk_param_buff,
authhandle,
TPM_HASH_SIZE,
nonceodd, TPM_HASH_SIZE, authdata);
if ((ret & ERR_MASK) != 0) {
TSS_OIAPclose(authhandle);
return ret;
}
/* transmit the request buffer to the TPM device and read the reply */
ret = TPM_Transmit(tpmdata, "Take Ownership");
TSS_OIAPclose(authhandle);
if (ret != 0)
return ret;
/* check the response HMAC */
srkparamsize = TSS_KeySize(tpmdata + TPM_DATA_OFFSET);
ret =
TSS_checkhmac1(tpmdata, command, nonceodd, ownpass,
TPM_HASH_SIZE, srkparamsize, TPM_DATA_OFFSET, 0,
0);
if (ret != 0)
return ret;
/* convert the returned key to a structure */
if (key == NULL)
return 0;
TSS_KeyExtract(tpmdata + TPM_DATA_OFFSET, key);
return 0;
}
int main(int argc, char *argv[])
{
int ret;
unsigned char hashpass1[TPM_HASH_SIZE]; /* hash of new key password */
unsigned char hashpass2[TPM_HASH_SIZE]; /* hash of migration password */
keydata k; /* keydata structure for input key parameters */
keydata q; /* keydata structure for resulting key */
RSA *rsa; /* OpenSSL format Public Key */
FILE *keyfile; /* output file for public key */
FILE *blbfile; /* output file for encrypted blob */
EVP_PKEY *pkey = NULL; /* OpenSSL public key */
char filename[256]; /* file name string of public key file */
unsigned char blob[4096]; /* area to hold key blob */
uint32_t bloblen; /* key blob length */
unsigned char *aptr1 = NULL;
unsigned char *aptr2 = NULL;
int nxtarg;
TPM_setlog(0); /* turn off verbose output */
/*
** parse command line
*/
nxtarg = ParseArgs(argc, argv);
(void)nxtarg;
if ((digestfilename == NULL) ||
(keyname == NULL) ||
(parhandle == 0)) {
printf("Missing parameter\n");
printUsage();
}
if (-1 == readHMACandDigest(digestfilename, migAuthApproval, migAuthDigest)) {
printf("Error reading from file %s.\n", digestfilename);
exit(-1);
}
/*
** convert parent key handle from hex
*/
/*
** use the SHA1 hash of the password string as the Parent Key Authorization Data
*/
if (parpass != NULL) { TSS_sha1(parpass,strlen(parpass),hashpass1); aptr1 = hashpass1; }
/*
** use the SHA1 hash of the password string as the Key Authorization Data
*/
if (keypass != NULL) { TSS_sha1(keypass,strlen(keypass),hashpass2); aptr2 = hashpass2; }
/*
** initialize new key parameters
*/
k.v.tag = TPM_TAG_KEY12;
k.keyFlags = TPM_MIGRATABLE | TPM_MIGRATEAUTHORITY;
if (keypass != NULL)
k.authDataUsage = 1; /* key requires authorization (password) */
else
k.authDataUsage = 0; /* key requires no authorization (password) */
k.encData.size = 0; /* no private key specified here */
k.pub.algorithmParms.algorithmID = TPM_ALG_RSA; /* key algorithm 1 = RSA */
if (keytype == 's') {
k.keyUsage = TPM_KEY_SIGNING; /* key Usage - 0x0010 = signing */
k.pub.algorithmParms.encScheme = TPM_ES_NONE; /* encryption scheme 1 = NONE - signing key */
k.pub.algorithmParms.sigScheme = TPM_SS_RSASSAPKCS1v15_SHA1; /* signature scheme RSA/SHA1 */
}
else if (keytype == 'd') {
k.keyUsage = TPM_KEY_SIGNING; /* key Usage - 0x0010 = signing */
k.pub.algorithmParms.encScheme = TPM_ES_NONE; /* encryption scheme 1 = NONE - signing key */
k.pub.algorithmParms.sigScheme = TPM_SS_RSASSAPKCS1v15_DER; /* signature scheme RSA/DER */
}
else if (keytype == 'i') {
k.keyUsage = TPM_KEY_SIGNING; /* key Usage - 0x0010 = signing */
k.pub.algorithmParms.encScheme = TPM_ES_NONE; /* encryption scheme 1 = NONE - signing key */
k.pub.algorithmParms.sigScheme = TPM_SS_RSASSAPKCS1v15_INFO; /* signature scheme RSA/INFO */
}
else if (keytype == 'e') {
k.keyUsage = TPM_KEY_STORAGE; /* key Usage - 0x0011 = encryption */
k.pub.algorithmParms.encScheme = TPM_ES_RSAESOAEP_SHA1_MGF1; /* encryption scheme 3 RSA */
k.pub.algorithmParms.sigScheme = TPM_SS_NONE; /* signature scheme NONE */
}
else if (keytype == 'b') {
k.keyUsage = TPM_KEY_BIND; /* key Usage - 0x0014 = bind */
k.pub.algorithmParms.encScheme = TPM_ES_RSAESOAEP_SHA1_MGF1; /* encryption scheme 3 RSA */
k.pub.algorithmParms.sigScheme = TPM_SS_NONE; /* signature scheme none */
}
else if (keytype == 'l') {
k.keyUsage = TPM_KEY_LEGACY; /* key Usage - 0x0015 = legacy */
k.pub.algorithmParms.encScheme = TPM_ES_RSAESOAEP_SHA1_MGF1; /* encryption scheme 3 RSA */
k.pub.algorithmParms.sigScheme = TPM_SS_RSASSAPKCS1v15_SHA1; /* signature scheme RSA/SHA1 */
}
else if (keytype == 'm') {
k.keyUsage = TPM_KEY_MIGRATE; /* key Usage - 0x0016 = migration */
k.pub.algorithmParms.encScheme = TPM_ES_RSAESOAEP_SHA1_MGF1; /* encryption scheme 3 RSA */
k.pub.algorithmParms.sigScheme = TPM_SS_NONE; /* signature scheme RSA/SHA1 */
}
else {
printUsage();
}
k.pub.algorithmParms.u.rsaKeyParms.keyLength = keysize; /* 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 */
/*
** create and wrap an asymmetric key and get back the
** resulting keydata structure with the public and encrypted
** private keys filled in by the TPM
*/
bloblen = sizeof(blob);
ret = TPM_CMK_CreateKey(parhandle,
aptr1,
aptr2,
&k,
migAuthApproval,
migAuthDigest,
&q,
blob,
&bloblen);
if (ret != 0) {
printf("Error %s from TPM_CMK_CreateKey\n",
TPM_GetErrMsg(ret));
exit(-2);
}
sprintf(filename,"%s.key",keyname);
blbfile = fopen(filename,"wb+");
if (blbfile == NULL) {
printf("Unable to create key file\n");
exit(-3);
}
ret = fwrite(blob,1,bloblen,blbfile);
if (ret != (int)bloblen) {
printf("I/O Error writing key file\n");
exit(-4);
}
fclose(blbfile);
/*
** convert the returned public key to OpenSSL format and
** export it to a file
*/
rsa = TSS_convpubkey(&(q.pub));
if (rsa == NULL) {
printf("Error from TSS_convpubkey\n");
exit(-5);
}
OpenSSL_add_all_algorithms();
pkey = EVP_PKEY_new();
if (pkey == NULL) {
printf("Unable to create EVP_PKEY\n");
exit(-6);
}
ret = EVP_PKEY_assign_RSA(pkey,rsa);
if (ret == 0) {
printf("Unable to assign public key to EVP_PKEY\n");
exit(-7);
}
sprintf(filename,"%s.pem",keyname);
keyfile = fopen(filename,"wb");
if (keyfile == NULL) {
printf("Unable to create public key file\n");
exit(-8);
}
ret = PEM_write_PUBKEY(keyfile,pkey);
if (ret == 0) {
printf("I/O Error writing public key file\n");
exit(-9);
}
fclose(keyfile);
EVP_PKEY_free(pkey);
exit(0);
}
int main(int argc, char *argv[])
{
int ret;
unsigned char pass1hash[20];
unsigned char pass2hash[20];
keydata srk;
RSA *rsa; /* OpenSSL format Public Key */
FILE *keyfile; /* output file for public key */
EVP_PKEY *pkey = NULL; /* OpenSSL public key */
if (argc < 2)
{
printf("Usage: takeown <owner password> [<storage root key password>]\n");
exit(1);
}
TPM_setlog(0); /* turn off verbose output */
/*
** use the SHA1 hash of the password string as the Owner Authorization Data
*/
TSS_sha1((unsigned char*)argv[1],strlen(argv[1]),pass1hash);
/*
** use the SHA1 hash of the password string as the SRK Authorization Data
*/
if (argc > 2)
{
TSS_sha1((unsigned char *)argv[2],strlen(argv[2]),pass2hash);
ret = TPM_TakeOwnership12(pass1hash,pass2hash,&srk);
}
else
{
TSS_sha1((unsigned char *)"SRK PWD",8,pass2hash); /* hard code for tpmdiag */
ret = TPM_TakeOwnership12(pass1hash,pass2hash,&srk);
}
if (ret != 0)
{
printf("Error %s from TPM_TakeOwnership\n",TPM_GetErrMsg(ret));
exit(2);
}
/*
** convert the returned public key to OpenSSL format and
** export it to a file
*/
rsa = TSS_convpubkey(&(srk.pub));
if (rsa == NULL)
{
printf("Error from TSS_convpubkey\n");
exit(3);
}
OpenSSL_add_all_algorithms();
pkey = EVP_PKEY_new();
if (pkey == NULL) {
printf("Unable to create EVP_PKEY\n");
exit(4);
}
ret = EVP_PKEY_assign_RSA(pkey,rsa);
keyfile = fopen("srk.pem","wb");
if (keyfile == NULL)
{
printf("Unable to create public key file\n");
exit(5);
}
ret = PEM_write_PUBKEY(keyfile,pkey);
if (ret == 0)
{
printf("Unable to write public key file\n");
exit(6);
}
fclose(keyfile);
EVP_PKEY_free(pkey);
exit(0);
}
int main(int argc, char *argv[])
{
int ret = 0;
TPM_BOOL reset = TRUE;
unsigned char *passptr1;
char * password = NULL;
unsigned char passhash1[20]; /* hash of password */
pubkeydata pubek;
int i = 1;
TPM_setlog(0);
while (i < argc) {
if (!strcmp(argv[i],"-pwdk")) {
i++;
if (i >= argc) {
printf("Parameter missing for -pwdk option!\n");
usage();
}
reset = FALSE;
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 {
passptr1 = NULL;
}
ret = TPM_CreateRevocableEK(reset, passptr1, &pubek);
if (0 != ret) {
printf("Error %s from TPM_CreateRevocableEK\n",
TPM_GetErrMsg(ret));
} else {
EVP_PKEY *pkey = NULL; /* OpenSSL public key */
FILE * keyfile;
RSA * rsa;
/*
** convert the returned public key to OpenSSL format and
** export it to a file
*/
rsa = TSS_convpubkey(&pubek);
if (rsa == NULL) {
printf("Error from TSS_convpubkey\n");
exit(-3);
}
OpenSSL_add_all_algorithms();
pkey = EVP_PKEY_new();
if (pkey == NULL) {
printf("Unable to create EVP_PKEY\n");
exit(-4);
}
ret = EVP_PKEY_assign_RSA(pkey,rsa);
if (ret == 0) {
printf("Unable to assign public key to EVP_PKEY\n");
exit(-5);
}
keyfile = fopen("pubek.pem","wb");
if (keyfile == NULL) {
printf("Unable to create public key file\n");
exit(-6);
}
ret = PEM_write_PUBKEY(keyfile,pkey);
if (ret == 0) {
printf("Unable to write public key file\n");
exit(-7);
}
printf("pubek.pem successfully written\n");
printf("Pubek keylength %d\nModulus:",pubek.pubKey.keyLength);
for(i=0;i<(int)pubek.pubKey.keyLength;i++){
if(!(i%16))
printf("\n");
printf("%02X ",pubek.pubKey.modulus[i]);
}
printf("\n");
fclose(keyfile);
EVP_PKEY_free(pkey);
ret = 0;
}
exit(ret);
}
