diff options
Diffstat (limited to 'roms/skiboot/libstb/tss2/ibmtpm20tss/utils/rsaencrypt.c')
| -rw-r--r-- | roms/skiboot/libstb/tss2/ibmtpm20tss/utils/rsaencrypt.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/rsaencrypt.c b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/rsaencrypt.c new file mode 100644 index 000000000..1ef17c25e --- /dev/null +++ b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/rsaencrypt.c @@ -0,0 +1,262 @@ +/********************************************************************************/ +/* */ +/* RSA_Encrypt */ +/* 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> +#include <ibmtss/tssmarshal.h> + +static TPM_RC getKeySize(TSS_CONTEXT *tssContext, + TPMI_RSA_KEY_BITS *keyBits, + TPMI_DH_PCR objectHandle); +static void printRsaEncrypt(RSA_Encrypt_Out *out); +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; + RSA_Encrypt_In in; + RSA_Encrypt_Out out; + TPMI_DH_OBJECT keyHandle = 0; + TPMI_RSA_KEY_BITS keyBits; + const char *decryptFilename = NULL; + const char *encryptFilename = NULL; + + uint16_t written = 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; + + /* 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],"-id") == 0) { + i++; + if (i < argc) { + decryptFilename = argv[i]; + } + else { + printf("-id option needs a value\n"); + printUsage(); + } + } + else if (strcmp(argv[i],"-oe") == 0) { + i++; + if (i < argc) { + encryptFilename = argv[i]; + } + else { + printf("-oe option needs a value\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 (decryptFilename == NULL) { + printf("Missing decrypted file -id\n"); + printUsage(); + } + /* Start a TSS context */ + if (rc == 0) { + rc = TSS_Create(&tssContext); + } + /* get the public modulus size for checks and padding */ + if (rc == 0) { + rc = getKeySize(tssContext, &keyBits, keyHandle); + } + if (rc == 0) { + rc = TSS_File_ReadBinaryFile(&buffer, /* freed @1 */ + &length, + decryptFilename); + } + if (rc == 0) { + if (length > (keyBits / 8U)) { + printf("Input data too long %u\n", (unsigned int)length); + rc = TSS_RC_INSUFFICIENT_BUFFER; + } + } + if (rc == 0) { + /* Handle of key that will perform rsaencrypting */ + in.keyHandle = keyHandle; + + /* Table 158 - Definition of {RSA} TPM2B_PUBLIC_KEY_RSA Structure */ + { + in.message.t.size = (uint16_t)length; /* cast safe, range tested above */ + memcpy(in.message.t.buffer, buffer, length); + } + /* padding scheme */ + { + /* Table 157 - Definition of {RSA} TPMT_RSA_DECRYPT Structure */ + in.inScheme.scheme = TPM_ALG_NULL; + } + /* label */ + { + /* NOTE: label requires the last byte to be zero. I.e., when implemented, do not set + the in.label.t.size to strlen() */ + /* Table 73 - Definition of TPM2B_DATA Structure */ + in.label.t.size = 0; + } + } + free (buffer); /* @1 */ + buffer = NULL; + /* call TSS to execute the command */ + if (rc == 0) { + rc = TSS_Execute(tssContext, + (RESPONSE_PARAMETERS *)&out, + (COMMAND_PARAMETERS *)&in, + NULL, + TPM_CC_RSA_Encrypt, + TPM_RH_NULL, NULL, 0); + } + { + TPM_RC rc1 = TSS_Delete(tssContext); + if (rc == 0) { + rc = rc1; + } + } + if ((rc == 0) && (encryptFilename != NULL)) { + rc = TSS_Structure_Marshal(&buffer, /* freed @1 */ + &written, + &out.outData, + (MarshalFunction_t)TSS_TPM2B_PUBLIC_KEY_RSA_Marshalu); + } + if ((rc == 0) && (encryptFilename != NULL)) { + rc = TSS_File_WriteBinaryFile(buffer + sizeof(uint16_t), + written - sizeof(uint16_t), + encryptFilename); + } + if (rc == 0) { + if (tssUtilsVerbose) printRsaEncrypt(&out); + if (tssUtilsVerbose) printf("rsaencrypt: success\n"); + } + else { + const char *msg; + const char *submsg; + const char *num; + printf("rsaencrypt: 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; +} + +/* getKeySize() gets the key size in bits */ + +static TPM_RC getKeySize(TSS_CONTEXT *tssContext, + TPMI_RSA_KEY_BITS *keyBits, + TPMI_DH_PCR objectHandle) +{ + TPM_RC rc = 0; + ReadPublic_In in; + ReadPublic_Out out; + + /* call TSS to execute the command */ + if (rc == 0) { + in.objectHandle = objectHandle; + rc = TSS_Execute(tssContext, + (RESPONSE_PARAMETERS *)&out, + (COMMAND_PARAMETERS *)&in, + NULL, + TPM_CC_ReadPublic, + TPM_RH_NULL, NULL, 0); + } + if (rc == 0) { + *keyBits = out.outPublic.publicArea.parameters.rsaDetail.keyBits; + if (tssUtilsVerbose) printf("getKeySize: size %u\n", *keyBits); + } + return rc; +} + +static void printRsaEncrypt(RSA_Encrypt_Out *out) +{ + TSS_PrintAll("outData", out->outData.t.buffer, out->outData.t.size); +} + +static void printUsage(void) +{ + printf("\n"); + printf("rsaencrypt\n"); + printf("\n"); + printf("Runs TPM2_RSA_Encrypt\n"); + printf("\n"); + printf("\t-hk\tkey handle\n"); + printf("\t-id\tdecrypt file name\n"); + printf("\t[-oe\tencrypt file name (default do not save)]\n"); + exit(1); +} |