diff options
Diffstat (limited to 'roms/skiboot/libstb/tss2/ibmtpm20tss/utils/encryptdecrypt.c')
| -rw-r--r-- | roms/skiboot/libstb/tss2/ibmtpm20tss/utils/encryptdecrypt.c | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/encryptdecrypt.c b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/encryptdecrypt.c new file mode 100644 index 000000000..cd958a3b0 --- /dev/null +++ b/roms/skiboot/libstb/tss2/ibmtpm20tss/utils/encryptdecrypt.c @@ -0,0 +1,363 @@ +/********************************************************************************/ +/* */ +/* EncryptDecrypt */ +/* 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 void printDecrypt(EncryptDecrypt_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; + EncryptDecrypt_In in; + EncryptDecrypt_Out out; + EncryptDecrypt2_In in2; + TPMI_DH_OBJECT keyHandle = 0; + const char *inFilename = NULL; + const char *outFilename = NULL; + TPMI_YES_NO decrypt = NO; + int two = FALSE; + 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; + + uint16_t written; + size_t length; + uint8_t *buffer = NULL; /* for the free */ + uint8_t *buffer1 = NULL; /* for marshaling */ + + 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],"-if") == 0) { + i++; + if (i < argc) { + inFilename = argv[i]; + } + else { + printf("-if option needs a value\n"); + printUsage(); + } + } + else if (strcmp(argv[i],"-of") == 0) { + i++; + if (i < argc) { + outFilename = argv[i]; + } + else { + printf("-of option needs a value\n"); + printUsage(); + } + } + else if (strcmp(argv[i],"-d") == 0) { + decrypt = YES; + } + else if (strcmp(argv[i],"-2") == 0) { + two = TRUE; + } + 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) { + printf("Missing encrypted message -if\n"); + printUsage(); + } + if (rc == 0) { + rc = TSS_File_ReadBinaryFile(&buffer, /* freed @1 */ + &length, + inFilename); + } + if (rc == 0) { + if (length > sizeof(in.inData.t.buffer)) { + printf("Input data too long %u\n", (uint32_t)length); + rc = TSS_RC_INSUFFICIENT_BUFFER; + } + } + if (rc == 0) { + if (!two) { /* use TPM_CC_EncryptDecrypt */ + /* the symmetric key used for the operation */ + in.keyHandle = keyHandle; + /* if YES, then the operation is decryption; if NO, the operation is encryption */ + in.decrypt = decrypt; + /* symmetric mode */ + in.mode = TPM_ALG_NULL; + /* an initial value as required by the algorithm */ + in.ivIn.t.size = MAX_SYM_BLOCK_SIZE; + memset(in.ivIn.t.buffer, 0, MAX_SYM_BLOCK_SIZE); + /* the data to be encrypted/decrypted */ + in.inData.t.size = (uint16_t)length; + if (length > 0) { /* if length is 0, buffer is NULL */ + memcpy(in.inData.t.buffer, buffer, length); + } + } + else { + /* the symmetric key used for the operation */ + in2.keyHandle = keyHandle; + /* if YES, then the operation is decryption; if NO, the operation is encryption */ + in2.decrypt = decrypt; + /* symmetric mode */ + in2.mode = TPM_ALG_NULL; + /* an initial value as required by the algorithm */ + in2.ivIn.t.size = MAX_SYM_BLOCK_SIZE; + memset(in2.ivIn.t.buffer, 0, MAX_SYM_BLOCK_SIZE); + /* the data to be encrypted/decrypted */ + in2.inData.t.size = (uint16_t)length; + if (length > 0) { /* if length is 0, buffer is NULL */ + memcpy(in2.inData.t.buffer, buffer, length); + } + } + } + free (buffer); /* @1 */ + buffer = NULL; + + /* Start a TSS context */ + if (rc == 0) { + rc = TSS_Create(&tssContext); + } + /* call TSS to execute the command */ + if (rc == 0) { + if (!two) { /* use TPM_CC_EncryptDecrypt */ + rc = TSS_Execute(tssContext, + (RESPONSE_PARAMETERS *)&out, + (COMMAND_PARAMETERS *)&in, + NULL, + TPM_CC_EncryptDecrypt, + sessionHandle0, keyPassword, sessionAttributes0, + sessionHandle1, NULL, sessionAttributes1, + sessionHandle2, NULL, sessionAttributes2, + TPM_RH_NULL, NULL, 0); + } + else { /* use TPM_CC_EncryptDecrypt2 */ + rc = TSS_Execute(tssContext, + (RESPONSE_PARAMETERS *)&out, + (COMMAND_PARAMETERS *)&in2, + NULL, + TPM_CC_EncryptDecrypt2, + 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) && (outFilename != NULL)) { + written = 0; + rc = TSS_TPM2B_MAX_BUFFER_Marshalu(&out.outData, &written, NULL, NULL); + } + if ((rc == 0) && (outFilename != NULL)) { + buffer = realloc(buffer, written); /* freed @2 */ + buffer1 = buffer; + written = 0; + rc = TSS_TPM2B_MAX_BUFFER_Marshalu(&out.outData, &written, &buffer1, NULL); + } + if ((rc == 0) && (outFilename != NULL)) { + rc = TSS_File_WriteBinaryFile(buffer + sizeof(uint16_t), + written - sizeof(uint16_t), + outFilename); + } + free(buffer); /* @2 */ + if (rc == 0) { + if (tssUtilsVerbose) printDecrypt(&out); + if (tssUtilsVerbose) printf("encryptdecrypt: success\n"); + } + else { + const char *msg; + const char *submsg; + const char *num; + printf("encryptdecrypt: 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 printDecrypt(EncryptDecrypt_Out *out) +{ + TSS_PrintAll("outData", out->outData.t.buffer, out->outData.t.size); +} + +static void printUsage(void) +{ + printf("\n"); + printf("encryptdecrypt\n"); + printf("\n"); + printf("Runs TPM2_EncryptDecrypt\n"); + printf("\n"); + printf("\t-hk\tkey handle\n"); + printf("\t-pwdk\tpassword for key (default empty)\n"); + printf("\t-d\tdecrypt (default encrypt)\n"); + printf("\t-if\tinput file name\n"); + printf("\t[-of\toutput file name (default do not save)]\n"); + printf("\t[-2\tuse TPM2_EncryptDecrypt2]\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); +} |