| /********************************************************************************/ |
| /* */ |
| /* Sign */ |
| /* Written by Ken Goldman */ |
| /* IBM Thomas J. Watson Research Center */ |
| /* */ |
| /* (c) Copyright IBM Corporation 2015 - 2019. */ |
| /* */ |
| /* All rights reserved. */ |
| /* */ |
| /* Redistribution and use in source and binary forms, with or without */ |
| /* modification, are permitted provided that the following conditions are */ |
| /* met: */ |
| /* */ |
| /* Redistributions of source code must retain the above copyright notice, */ |
| /* this list of conditions and the following disclaimer. */ |
| /* */ |
| /* Redistributions in binary form must reproduce the above copyright */ |
| /* notice, this list of conditions and the following disclaimer in the */ |
| /* documentation and/or other materials provided with the distribution. */ |
| /* */ |
| /* Neither the names of the IBM Corporation nor the names of its */ |
| /* contributors may be used to endorse or promote products derived from */ |
| /* this software without specific prior written permission. */ |
| /* */ |
| /* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */ |
| /* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */ |
| /* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */ |
| /* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */ |
| /* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ |
| /* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ |
| /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */ |
| /* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY */ |
| /* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */ |
| /* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */ |
| /* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
| /********************************************************************************/ |
| |
| /* |
| |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdint.h> |
| |
| /* Windows 10 crypto API clashes with openssl */ |
| #ifdef TPM_WINDOWS |
| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #endif |
| #endif |
| |
| #include <ibmtss/tss.h> |
| #include <ibmtss/tssutils.h> |
| #include <ibmtss/tssresponsecode.h> |
| #include <ibmtss/tssmarshal.h> |
| #include <ibmtss/tsscryptoh.h> |
| #include <ibmtss/tsscrypto.h> |
| #include <ibmtss/Unmarshal_fp.h> |
| |
| #include "cryptoutils.h" |
| |
| static void printUsage(void); |
| |
| extern int tssUtilsVerbose; |
| |
| int main(int argc, char *argv[]) |
| { |
| TPM_RC rc = 0; |
| int i; /* argc iterator */ |
| TSS_CONTEXT *tssContext = NULL; |
| Sign_In in; |
| Sign_Out out; |
| TPMI_DH_OBJECT keyHandle = 0; |
| TPMI_ALG_HASH halg = TPM_ALG_SHA256; |
| TPMI_ALG_SIG_SCHEME scheme = TPM_ALG_RSASSA; |
| const char *messageFilename = NULL; |
| const char *counterFilename = NULL; |
| const char *ticketFilename = NULL; |
| const char *publicKeyFilename = NULL; |
| const char *signatureFilename = NULL; |
| const char *keyPassword = NULL; |
| TPMI_SH_AUTH_SESSION sessionHandle0 = TPM_RS_PW; |
| unsigned int sessionAttributes0 = 0; |
| TPMI_SH_AUTH_SESSION sessionHandle1 = TPM_RH_NULL; |
| unsigned int sessionAttributes1 = 0; |
| TPMI_SH_AUTH_SESSION sessionHandle2 = TPM_RH_NULL; |
| unsigned int sessionAttributes2 = 0; |
| |
| unsigned char *data = NULL; /* message */ |
| size_t length; |
| uint32_t sizeInBytes; /* hash algorithm mapped to size */ |
| TPMT_HA digest; /* digest of the message */ |
| |
| setvbuf(stdout, 0, _IONBF, 0); /* output may be going through pipe to log file */ |
| TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "1"); |
| tssUtilsVerbose = FALSE; |
| |
| /* command line argument defaults */ |
| for (i=1 ; (i<argc) && (rc == 0) ; i++) { |
| if (strcmp(argv[i],"-hk") == 0) { |
| i++; |
| if (i < argc) { |
| sscanf(argv[i],"%x",&keyHandle); |
| } |
| else { |
| printf("Missing parameter for -hk\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-pwdk") == 0) { |
| i++; |
| if (i < argc) { |
| keyPassword = argv[i]; |
| } |
| else { |
| printf("-pwdk option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-halg") == 0) { |
| i++; |
| if (i < argc) { |
| if (strcmp(argv[i],"sha1") == 0) { |
| halg = TPM_ALG_SHA1; |
| } |
| else if (strcmp(argv[i],"sha256") == 0) { |
| halg = TPM_ALG_SHA256; |
| } |
| else if (strcmp(argv[i],"sha384") == 0) { |
| halg = TPM_ALG_SHA384; |
| } |
| else if (strcmp(argv[i],"sha512") == 0) { |
| halg = TPM_ALG_SHA512; |
| } |
| else { |
| printf("Bad parameter %s for -halg\n", argv[i]); |
| printUsage(); |
| } |
| } |
| else { |
| printf("-halg option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-salg") == 0) { |
| i++; |
| if (i < argc) { |
| if (strcmp(argv[i],"rsa") == 0) { |
| scheme = TPM_ALG_RSASSA; |
| } |
| else if (strcmp(argv[i],"ecc") == 0) { |
| scheme = TPM_ALG_ECDSA; |
| } |
| else if (strcmp(argv[i],"hmac") == 0) { |
| scheme = TPM_ALG_HMAC; |
| } |
| else { |
| printf("Bad parameter %s for -salg\n", argv[i]); |
| printUsage(); |
| } |
| } |
| else { |
| printf("-salg option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-scheme") == 0) { |
| i++; |
| if (i < argc) { |
| if (strcmp(argv[i],"rsassa") == 0) { |
| scheme = TPM_ALG_RSASSA; |
| } |
| else if (strcmp(argv[i],"rsapss") == 0) { |
| scheme = TPM_ALG_RSAPSS; |
| } |
| else if (strcmp(argv[i],"ecdsa") == 0) { |
| scheme = TPM_ALG_ECDSA; |
| } |
| else if (strcmp(argv[i],"ecdaa") == 0) { |
| scheme = TPM_ALG_ECDAA; |
| } |
| else if (strcmp(argv[i],"hmac") == 0) { |
| scheme = TPM_ALG_HMAC; |
| } |
| else { |
| printf("Bad parameter %s for -scheme\n", argv[i]); |
| printUsage(); |
| } |
| } |
| } |
| else if (strcmp(argv[i],"-cf") == 0) { |
| i++; |
| if (i < argc) { |
| counterFilename = argv[i]; |
| } |
| else { |
| printf("-cf option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-if") == 0) { |
| i++; |
| if (i < argc) { |
| messageFilename = argv[i]; |
| } |
| else { |
| printf("-if option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-ipu") == 0) { |
| i++; |
| if (i < argc) { |
| publicKeyFilename = argv[i]; |
| } |
| else { |
| printf("-ipu option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-tk") == 0) { |
| i++; |
| if (i < argc) { |
| ticketFilename = argv[i]; |
| } |
| else { |
| printf("-tk option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-os") == 0) { |
| i++; |
| if (i < argc) { |
| signatureFilename = argv[i]; |
| } |
| else { |
| printf("-os option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-se0") == 0) { |
| i++; |
| if (i < argc) { |
| sscanf(argv[i],"%x", &sessionHandle0); |
| } |
| else { |
| printf("Missing parameter for -se0\n"); |
| printUsage(); |
| } |
| i++; |
| if (i < argc) { |
| sscanf(argv[i],"%x", &sessionAttributes0); |
| if (sessionAttributes0 > 0xff) { |
| printf("Out of range session attributes for -se0\n"); |
| printUsage(); |
| } |
| } |
| else { |
| printf("Missing parameter for -se0\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-se1") == 0) { |
| i++; |
| if (i < argc) { |
| sscanf(argv[i],"%x", &sessionHandle1); |
| } |
| else { |
| printf("Missing parameter for -se1\n"); |
| printUsage(); |
| } |
| i++; |
| if (i < argc) { |
| sscanf(argv[i],"%x", &sessionAttributes1); |
| if (sessionAttributes1 > 0xff) { |
| printf("Out of range session attributes for -se1\n"); |
| printUsage(); |
| } |
| } |
| else { |
| printf("Missing parameter for -se1\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-se2") == 0) { |
| i++; |
| if (i < argc) { |
| sscanf(argv[i],"%x", &sessionHandle2); |
| } |
| else { |
| printf("Missing parameter for -se2\n"); |
| printUsage(); |
| } |
| i++; |
| if (i < argc) { |
| sscanf(argv[i],"%x", &sessionAttributes2); |
| if (sessionAttributes2 > 0xff) { |
| printf("Out of range session attributes for -se2\n"); |
| printUsage(); |
| } |
| } |
| else { |
| printf("Missing parameter for -se2\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-h") == 0) { |
| printUsage(); |
| } |
| else if (strcmp(argv[i],"-v") == 0) { |
| tssUtilsVerbose = TRUE; |
| TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "2"); |
| } |
| else { |
| printf("\n%s is not a valid option\n", argv[i]); |
| printUsage(); |
| } |
| } |
| if (messageFilename == NULL) { |
| printf("Missing message file name -if\n"); |
| printUsage(); |
| } |
| if (keyHandle == 0) { |
| printf("Missing handle parameter -hk\n"); |
| printUsage(); |
| } |
| if ((scheme == TPM_ALG_ECDAA) && (counterFilename == NULL)) { |
| printf("Missing counter file name -cf for ECDAA algorithm\n"); |
| printUsage(); |
| } |
| if (rc == 0) { |
| rc = TSS_File_ReadBinaryFile(&data, /* freed @1 */ |
| &length, |
| messageFilename); |
| } |
| /* hash the file */ |
| if (rc == 0) { |
| digest.hashAlg = halg; |
| sizeInBytes = TSS_GetDigestSize(digest.hashAlg); |
| rc = TSS_Hash_Generate(&digest, |
| length, data, |
| 0, NULL); |
| } |
| if (rc == 0) { |
| /* Handle of key that will perform signing */ |
| in.keyHandle = keyHandle; |
| |
| /* digest to be signed */ |
| in.digest.t.size = sizeInBytes; |
| memcpy(&in.digest.t.buffer, (uint8_t *)&digest.digest, sizeInBytes); |
| /* Table 145 - Definition of TPMT_SIG_SCHEME inScheme */ |
| in.inScheme.scheme = scheme; |
| /* Table 144 - Definition of TPMU_SIG_SCHEME details > */ |
| /* Table 142 - Definition of {RSA} Types for RSA Signature Schemes */ |
| /* Table 135 - Definition of TPMS_SCHEME_HASH Structure */ |
| /* Table 59 - Definition of (TPM_ALG_ID) TPMI_ALG_HASH Type */ |
| if ((scheme == TPM_ALG_RSASSA) || |
| (scheme == TPM_ALG_RSAPSS)) { |
| in.inScheme.details.rsassa.hashAlg = halg; |
| } |
| else if (scheme == TPM_ALG_ECDAA) { |
| in.inScheme.details.ecdaa.hashAlg = halg; |
| rc = TSS_File_ReadStructure(&in.inScheme.details.ecdaa.count, |
| (UnmarshalFunction_t)TSS_UINT16_Unmarshalu, |
| counterFilename); |
| } |
| else { /* scheme TPM_ALG_ECDSA */ |
| in.inScheme.details.ecdsa.hashAlg = halg; |
| } |
| } |
| if (rc == 0) { |
| if (ticketFilename == NULL) { |
| /* proof that digest was created by the TPM (NULL ticket) */ |
| /* Table 91 - Definition of TPMT_TK_HASHCHECK Structure */ |
| in.validation.tag = TPM_ST_HASHCHECK; |
| in.validation.hierarchy = TPM_RH_NULL; |
| in.validation.digest.t.size = 0; |
| } |
| else { |
| rc = TSS_File_ReadStructure(&in.validation, |
| (UnmarshalFunction_t)TSS_TPMT_TK_HASHCHECK_Unmarshalu, |
| ticketFilename); |
| } |
| } |
| /* Start a TSS context */ |
| if (rc == 0) { |
| rc = TSS_Create(&tssContext); |
| } |
| /* call TSS to execute the command */ |
| if (rc == 0) { |
| rc = TSS_Execute(tssContext, |
| (RESPONSE_PARAMETERS *)&out, |
| (COMMAND_PARAMETERS *)&in, |
| NULL, |
| TPM_CC_Sign, |
| sessionHandle0, keyPassword, sessionAttributes0, |
| sessionHandle1, NULL, sessionAttributes1, |
| sessionHandle2, NULL, sessionAttributes2, |
| TPM_RH_NULL, NULL, 0); |
| } |
| { |
| TPM_RC rc1 = TSS_Delete(tssContext); |
| if (rc == 0) { |
| rc = rc1; |
| } |
| } |
| if ((rc == 0) && (signatureFilename != NULL)) { |
| rc = TSS_File_WriteStructure(&out.signature, |
| (MarshalFunction_t)TSS_TPMT_SIGNATURE_Marshalu, |
| signatureFilename); |
| } |
| /* if a public key was specified, use openssl to verify the signature using an openssl RSA |
| format key token */ |
| if (publicKeyFilename != NULL) { |
| TPM2B_PUBLIC public; |
| void *rsaPubKey = NULL; |
| if (rc == 0) { |
| rc = TSS_File_ReadStructureFlag(&public, |
| (UnmarshalFunctionFlag_t)TSS_TPM2B_PUBLIC_Unmarshalu, |
| TRUE, /* NULL permitted */ |
| publicKeyFilename); |
| } |
| /* construct the OpenSSL RSA public key token */ |
| if (rc == 0) { |
| unsigned char earr[3] = {0x01, 0x00, 0x01}; |
| rc = TSS_RSAGeneratePublicTokenI |
| (&rsaPubKey, /* freed @2 */ |
| public.publicArea.unique.rsa.t.buffer, /* public modulus */ |
| public.publicArea.unique.rsa.t.size, |
| earr, /* public exponent */ |
| sizeof(earr)); |
| } |
| /* |
| verify the TPM signature |
| */ |
| if (rc == 0) { |
| rc = verifyRSASignatureFromRSA((uint8_t *)&in.digest.t.buffer, |
| in.digest.t.size, |
| &out.signature, |
| halg, |
| rsaPubKey); |
| |
| } |
| TSS_RsaFree(rsaPubKey); /* @2 */ |
| } |
| free(data); /* @1 */ |
| if (rc == 0) { |
| if (tssUtilsVerbose) printf("sign: success\n"); |
| } |
| else { |
| const char *msg; |
| const char *submsg; |
| const char *num; |
| printf("sign: failed, rc %08x\n", rc); |
| TSS_ResponseCode_toString(&msg, &submsg, &num, rc); |
| printf("%s%s%s\n", msg, submsg, num); |
| rc = EXIT_FAILURE; |
| } |
| return rc; |
| } |
| |
| static void printUsage(void) |
| { |
| printf("\n"); |
| printf("sign\n"); |
| printf("\n"); |
| printf("Runs TPM2_Sign\n"); |
| printf("\n"); |
| printf("\t-hk\tkey handle\n"); |
| printf("\t-if\tinput message to hash and sign\n"); |
| printf("\t[-pwdk\tpassword for key (default empty)]\n"); |
| printf("\t[-halg\t(sha1, sha256, sha384, sha512) (default sha256)]\n"); |
| printf("\t[-salg\tsignature algorithm (rsa, ecc, hmac) (default rsa)]\n"); |
| printf("\t[-scheme signing scheme (rsassa, rsapss, ecdsa, ecdaa, hmac)]\n"); |
| printf("\t\t(default rsassa, ecdsa, hmac)]\n"); |
| printf("\t[-cf\tinput counter file (commit count required for ECDAA scheme]\n"); |
| printf("\t[-ipu\tpublic key file name to verify signature (default no verify)]\n"); |
| printf("\t\tVerify only supported for RSA now\n"); |
| printf("\t[-os\tsignature file name (default do not save)]\n"); |
| printf("\t[-tk\tticket file name]\n"); |
| printf("\n"); |
| printf("\t-se[0-2] session handle / attributes (default PWAP)\n"); |
| printf("\t01\tcontinue\n"); |
| printf("\t20\tcommand decrypt\n"); |
| exit(1); |
| } |