diff options
Diffstat (limited to 'roms/skiboot/libstb/tss2/ibmtpm20tss/utils/sign.c')
| -rw-r--r-- | roms/skiboot/libstb/tss2/ibmtpm20tss/utils/sign.c | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/sign.c b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/sign.c new file mode 100644 index 000000000..0635366d0 --- /dev/null +++ b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/sign.c @@ -0,0 +1,489 @@ +/********************************************************************************/ +/* */ +/* 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); +} |