diff options
Diffstat (limited to 'roms/skiboot/libstb/tss2/ibmtpm20tss/utils/hmac.c')
| -rw-r--r-- | roms/skiboot/libstb/tss2/ibmtpm20tss/utils/hmac.c | 356 |
1 files changed, 356 insertions, 0 deletions
diff --git a/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/hmac.c b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/hmac.c new file mode 100644 index 000000000..be63e1b0a --- /dev/null +++ b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/hmac.c @@ -0,0 +1,356 @@ +/********************************************************************************/ +/* */ +/* Hmac */ +/* 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> + +#include <ibmtss/tss.h> +#include <ibmtss/tssutils.h> +#include <ibmtss/tssresponsecode.h> + +static void printUsage(void); +static void printHmac(HMAC_Out *out); + +extern int tssUtilsVerbose; + +int main(int argc, char *argv[]) +{ + TPM_RC rc = 0; + int i; /* argc iterator */ + TSS_CONTEXT *tssContext = NULL; + HMAC_In in; + HMAC_Out out; + TPMI_DH_OBJECT keyHandle = 0; + TPMI_ALG_HASH halg = TPM_ALG_SHA256; + const char *inFilename = NULL; + const char *inString = NULL; + const char *hmacFilename = 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; + + size_t length = 0; + uint8_t *buffer = NULL; /* for the free */ + + setvbuf(stdout, 0, _IONBF, 0); /* output may be going through pipe to log file */ + TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "1"); + tssUtilsVerbose = FALSE; + + 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],"-ic") == 0) { + i++; + if (i < argc) { + inString = argv[i]; + } + else { + printf("-ic option needs a value\n"); + printUsage(); + } + } + else if (strcmp(argv[i],"-if") == 0) { + i++; + if (i < argc) { + inFilename = argv[i]; + } + else { + printf("-if option needs a value\n"); + printUsage(); + } + } + else if (strcmp(argv[i],"-os") == 0) { + i++; + if (i < argc) { + hmacFilename = 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 (keyHandle == 0) { + printf("Missing handle parameter -hk\n"); + printUsage(); + } + if ((inFilename == NULL) && (inString == NULL)) { + printf("Input file -if or input string -ic must be specified\n"); + printUsage(); + } + if ((inFilename != NULL) && (inString != NULL)) { + printf("Input file -if and input string -ic cannot both be specified\n"); + printUsage(); + } + if (inFilename != NULL) { + if (rc == 0) { + rc = TSS_File_ReadBinaryFile(&buffer, /* freed @1 */ + &length, + inFilename); + } + if (rc == 0) { + if (length > sizeof(in.buffer.t.buffer)) { + printf("Input data too long %lu\n", (unsigned long)length); + rc = TSS_RC_INSUFFICIENT_BUFFER; + } + } + if (rc == 0) { + /* data to be HMACed */ + in.buffer.t.size = (uint16_t)length; /* cast safe, range tested above */ + memcpy(in.buffer.t.buffer, buffer, length); + } + } + if (inString != NULL) { + if (rc == 0) { + length = strlen(inString); + if (length > sizeof(in.buffer.t.buffer)) { + printf("Input data too long %lu\n", (unsigned long)length); + rc = TSS_RC_INSUFFICIENT_BUFFER; + } + } + if (rc == 0) { + /* data to be hashed */ + in.buffer.t.size =(uint16_t) length; /* cast safe, range tested above */ + memcpy(in.buffer.t.buffer, inString, length); + } + } + if (rc == 0) { + /* Handle of key that will perform hmac */ + in.handle = keyHandle; + /* use key's hash algorithm */ + in.hashAlg = halg; + } + /* 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_HMAC, + 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) && (hmacFilename != NULL)) { + rc = TSS_File_WriteBinaryFile(out.outHMAC.t.buffer, + out.outHMAC.t.size, + hmacFilename); + } + if (rc == 0) { + if (tssUtilsVerbose) printHmac(&out); + if (tssUtilsVerbose) printf("hmac: success\n"); + } + else { + const char *msg; + const char *submsg; + const char *num; + printf("hmac: failed, rc %08x\n", rc); + TSS_ResponseCode_toString(&msg, &submsg, &num, rc); + printf("%s%s%s\n", msg, submsg, num); + rc = EXIT_FAILURE; + } + free(buffer); /* @1 */ + return rc; +} + +static void printHmac(HMAC_Out *out) +{ + TSS_PrintAll("HMAC", out->outHMAC.t.buffer, out->outHMAC.t.size); +} + +static void printUsage(void) +{ + printf("\n"); + printf("hmac\n"); + printf("\n"); + printf("Runs TPM2_HMAC\n"); + printf("\n"); + printf("\t-hk\tkey handle\n"); + printf("\t[-pwdk\tpassword for key (default empty)]\n"); + printf("\t[-halg\t(sha1, sha256, sha384, sha512) (default sha256)]\n"); + printf("\t-if\tinput file to be HMACed\n"); + printf("\t-ic\tdata string to be HMACed\n"); + printf("\t[-os\thmac file name (default do not save)]\n"); + printf("\n"); + printf("\t-se[0-2] session handle / attributes (default PWAP)\n"); + printf("\t01\tcontinue\n"); + printf("\t20\tcommand decrypt\n"); + printf("\t40\tresponse encrypt\n"); + exit(1); +} |