diff options
Diffstat (limited to 'roms/skiboot/libstb/tss2/ibmtpm20tss/utils/tpmpublic2eccpoint.c')
| -rw-r--r-- | roms/skiboot/libstb/tss2/ibmtpm20tss/utils/tpmpublic2eccpoint.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/tpmpublic2eccpoint.c b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/tpmpublic2eccpoint.c new file mode 100644 index 000000000..6c310da7b --- /dev/null +++ b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/tpmpublic2eccpoint.c @@ -0,0 +1,155 @@ +/********************************************************************************/ +/* */ +/* TPM public key TPM2B_PUBLIC to TPM2B_ECC_POINT */ +/* Written by Ken Goldman */ +/* IBM Thomas J. Watson Research Center */ +/* */ +/* (c) Copyright IBM Corporation 2017 - 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/tsserror.h> +#include <ibmtss/tssutils.h> +#include <ibmtss/tssresponsecode.h> +#include <ibmtss/Unmarshal_fp.h> +#include <ibmtss/tssmarshal.h> + +static void printUsage(void); + +extern int tssUtilsVerbose; + +int main(int argc, char *argv[]) +{ + TPM_RC rc = 0; + int i; /* argc iterator */ + const char *publicKeyFilename = NULL; + const char *pointFilename = NULL; + TPM2B_PUBLIC public; + TPM2B_ECC_POINT eccPoint2b; + + tssUtilsVerbose = FALSE; + for (i=1 ; (i<argc) && (rc == 0) ; i++) { + 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],"-pt") == 0) { + i++; + if (i < argc) { + pointFilename = argv[i]; + } + else { + printf("-pt option needs a value\n"); + printUsage(); + } + } + else if (strcmp(argv[i],"-h") == 0) { + printUsage(); + } + else if (strcmp(argv[i],"-v") == 0) { + tssUtilsVerbose = TRUE; + } + else { + printf("\n%s is not a valid option\n", argv[i]); + printUsage(); + } + } + if (publicKeyFilename == NULL) { + printf("Missing public key parameter -ipu\n"); + printUsage(); + } + if (pointFilename == NULL) { + printf("Missing point file name parameter -pt\n"); + printUsage(); + } + /* read the TPM public key to a structure */ + if (rc == 0) { + rc = TSS_File_ReadStructureFlag(&public, + (UnmarshalFunctionFlag_t)TSS_TPM2B_PUBLIC_Unmarshalu, + TRUE, /* NULL permitted */ + publicKeyFilename); + } + if (rc == 0) { + if (public.publicArea.type != TPM_ALG_ECC) { + printf("Public key parameter -ipu type %04x is not TPM_ALG_ECC\n", + public.publicArea.type); + printUsage(); + } + } + if (rc == 0) { + /* copy the TPMS_ECC_POINT */ + eccPoint2b.point = public.publicArea.unique.ecc; + /* TSS_TPM2B_ECC_POINT_Marshal() fills in the redundant TPM2B_ECC_POINT size */ + rc = TSS_File_WriteStructure(&eccPoint2b, + (MarshalFunction_t)TSS_TPM2B_ECC_POINT_Marshalu, + pointFilename); + + } + if (rc == 0) { + if (tssUtilsVerbose) printf("tpmpublic2eccpoint: success\n"); + } + else { + const char *msg; + const char *submsg; + const char *num; + printf("tpmpublic2eccpoint: 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("tpmpublic2eccpoint\n"); + printf("\n"); + printf("Converts an EC TPM2B_PUBLIC to TPM2B_ECC_POINT. The intended use case\n"); + printf("is to convert the public key output of certain commands (TPM2_CreatePrimary,\n"); + printf("TPM2_Create, TPM2_CreateLoaded, TPM2_ReadPublic) to a format useful for\n"); + printf("TPM2_ZGen_2Phase.\n"); + printf("\n"); + printf("\t-ipu\tEC public key input file in TPM TPM2B_PUBLIC format\n"); + printf("\t-pt\tEC public key output file in TPM TPM2B_ECC_POINT format\n"); + exit(1); +} |