692 lines
21 KiB
C
Executable file
692 lines
21 KiB
C
Executable file
/*
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The Keccak sponge function, designed by Guido Bertoni, Joan Daemen,
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Michaël Peeters and Gilles Van Assche. For more information, feedback or
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questions, please refer to our website: http://keccak.noekeon.org/
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <ctype.h>
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#include "KeccakDuplex.h"
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#include "KeccakNISTInterface.h"
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#include "KeccakSponge.h"
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#define MAX_MARKER_LEN 50
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#define SUBMITTER_INFO_LEN 128
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typedef enum { KAT_SUCCESS = 0, KAT_FILE_OPEN_ERROR = 1, KAT_HEADER_ERROR = 2, KAT_DATA_ERROR = 3, KAT_HASH_ERROR = 4 } STATUS_CODES;
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#define AllowExtendedFunctions
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#define ExcludeExtremelyLong
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#ifdef AllowExtendedFunctions
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#define SqueezingOutputLength 4096
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#endif
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STATUS_CODES genShortMsg(int hashbitlen);
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STATUS_CODES genLongMsg(int hashbitlen);
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STATUS_CODES genExtremelyLongMsg(int hashbitlen);
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STATUS_CODES genMonteCarlo(int hashbitlen);
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#ifdef AllowExtendedFunctions
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STATUS_CODES genMonteCarloSqueezing(int hashbitlen);
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STATUS_CODES genShortMsgSponge(unsigned int rate, unsigned int capacity, int outputLength, const char *fileName);
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STATUS_CODES genDuplexKAT(unsigned int rate, unsigned int capacity, const char *fileName);
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#endif
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int FindMarker(FILE *infile, const char *marker);
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int ReadHex(FILE *infile, BitSequence *A, int Length, char *str);
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void fprintBstr(FILE *fp, char *S, BitSequence *A, int L);
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STATUS_CODES
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genKAT_main()
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{
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int i, ret_val, bitlens[4] = { 224, 256, 384, 512 };
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#ifdef AllowExtendedFunctions
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if ( (ret_val = genShortMsgSponge(1024, 576, 4096, "ShortMsgKAT_0.txt")) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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if ( (ret_val = genLongMsg(0)) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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#ifndef ExcludeExtremelyLong
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if ( (ret_val = genExtremelyLongMsg(0)) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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#endif
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if ( (ret_val = genMonteCarloSqueezing(0)) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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#endif
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for ( i=0; i<4; i++ ) {
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if ( (ret_val = genShortMsg(bitlens[i])) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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if ( (ret_val = genLongMsg(bitlens[i])) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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#ifndef ExcludeExtremelyLong
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if ( (ret_val = genExtremelyLongMsg(bitlens[i])) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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#endif
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if ( (ret_val = genMonteCarlo(bitlens[i])) != KAT_SUCCESS )
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return (STATUS_CODES)ret_val;
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}
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#ifdef AllowExtendedFunctions
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/* Other case examples */
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genShortMsgSponge(1344, 256, 4096, "ShortMsgKAT_r1344c256.txt");
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/* Duplexing */
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//genDuplexKAT(1024, 576, "DuplexKAT_r1024c576.txt");
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//genDuplexKAT(1025, 575, "DuplexKAT_r1025c575.txt");
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genDuplexKAT(1026, 574, "DuplexKAT_r1026c574.txt");
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genDuplexKAT(1027, 573, "DuplexKAT_r1027c573.txt");
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//genDuplexKAT(1028, 572, "DuplexKAT_r1028c572.txt");
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//genDuplexKAT(1029, 571, "DuplexKAT_r1029c571.txt");
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//genDuplexKAT(1030, 570, "DuplexKAT_r1030c570.txt");
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//genDuplexKAT(1031, 569, "DuplexKAT_r1031c569.txt");
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//genDuplexKAT(1032, 568, "DuplexKAT_r1032c568.txt");
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#endif
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return KAT_SUCCESS;
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}
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STATUS_CODES
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genShortMsg(int hashbitlen)
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{
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char fn[32], line[SUBMITTER_INFO_LEN];
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int msglen, msgbytelen, done, rv;
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BitSequence Msg[256], MD[64];
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FILE *fp_in, *fp_out;
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if ( (fp_in = fopen("ShortMsgKAT.txt", "r")) == NULL ) {
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printf("Couldn't open <ShortMsgKAT.txt> for read\n");
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return KAT_FILE_OPEN_ERROR;
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}
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sprintf(fn, "ShortMsgKAT_%d.txt", hashbitlen);
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if ( (fp_out = fopen(fn, "w")) == NULL ) {
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printf("Couldn't open <%s> for write\n", fn);
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return KAT_FILE_OPEN_ERROR;
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}
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fprintf(fp_out, "# %s\n", fn);
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if ( FindMarker(fp_in, "# Algorithm Name:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Algorithm Name:%s\n", line);
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}
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else {
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printf("genShortMsg: Couldn't read Algorithm Name\n");
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return KAT_HEADER_ERROR;
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}
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if ( FindMarker(fp_in, "# Principal Submitter:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Principal Submitter:%s\n", line);
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}
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else {
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printf("genShortMsg: Couldn't read Principal Submitter\n");
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return KAT_HEADER_ERROR;
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}
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done = 0;
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do {
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if ( FindMarker(fp_in, "Len = ") )
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rv = fscanf(fp_in, "%d", &msglen);
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else {
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done = 1;
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break;
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}
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msgbytelen = (msglen+7)/8;
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if ( !ReadHex(fp_in, Msg, msgbytelen, "Msg = ") ) {
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printf("ERROR: unable to read 'Msg' from <ShortMsgKAT.txt>\n");
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return KAT_DATA_ERROR;
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}
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Hash(hashbitlen, Msg, msglen, MD);
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fprintf(fp_out, "\nLen = %d\n", msglen);
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fprintBstr(fp_out, "Msg = ", Msg, msgbytelen);
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fprintBstr(fp_out, "MD = ", MD, hashbitlen/8);
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} while ( !done );
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printf("finished ShortMsgKAT for <%d>\n", hashbitlen);
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fclose(fp_in);
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fclose(fp_out);
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return KAT_SUCCESS;
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}
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#ifdef AllowExtendedFunctions
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STATUS_CODES
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genShortMsgSponge(unsigned int rate, unsigned int capacity, int outputLength, const char *fileName)
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{
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char line[SUBMITTER_INFO_LEN];
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int msglen, msgbytelen, done, rv;
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BitSequence Msg[256];
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BitSequence Squeezed[SqueezingOutputLength/8];
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spongeState state;
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FILE *fp_in, *fp_out;
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if (outputLength > SqueezingOutputLength) {
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printf("Requested output length too long.\n");
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return KAT_HASH_ERROR;
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}
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if ( (fp_in = fopen("ShortMsgKAT.txt", "r")) == NULL ) {
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printf("Couldn't open <ShortMsgKAT.txt> for read\n");
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return KAT_FILE_OPEN_ERROR;
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}
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if ( (fp_out = fopen(fileName, "w")) == NULL ) {
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printf("Couldn't open <%s> for write\n", fileName);
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return KAT_FILE_OPEN_ERROR;
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}
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fprintf(fp_out, "# %s\n", fileName);
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if ( FindMarker(fp_in, "# Algorithm Name:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Algorithm Name:%s\n", line);
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}
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else {
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printf("genShortMsg: Couldn't read Algorithm Name\n");
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return KAT_HEADER_ERROR;
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}
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if ( FindMarker(fp_in, "# Principal Submitter:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Principal Submitter:%s\n", line);
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}
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else {
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printf("genShortMsg: Couldn't read Principal Submitter\n");
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return KAT_HEADER_ERROR;
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}
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done = 0;
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do {
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if ( FindMarker(fp_in, "Len = ") )
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rv = fscanf(fp_in, "%d", &msglen);
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else {
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done = 1;
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break;
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}
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msgbytelen = (msglen+7)/8;
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if ( !ReadHex(fp_in, Msg, msgbytelen, "Msg = ") ) {
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printf("ERROR: unable to read 'Msg' from <ShortMsgKAT.txt>\n");
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return KAT_DATA_ERROR;
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}
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fprintf(fp_out, "\nLen = %d\n", msglen);
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fprintBstr(fp_out, "Msg = ", Msg, msgbytelen);
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InitSponge(&state, rate, capacity);
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if ((msglen % 8 ) != 0)
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// From NIST convention to internal convention for last byte
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Msg[msgbytelen - 1] >>= 8 - (msglen % 8);
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Absorb(&state, Msg, msglen);
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Squeeze(&state, Squeezed, outputLength);
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fprintBstr(fp_out, "Squeezed = ", Squeezed, SqueezingOutputLength/8);
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} while ( !done );
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printf("finished ShortMsgKAT for <%s>\n", fileName);
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fclose(fp_in);
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fclose(fp_out);
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return KAT_SUCCESS;
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}
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#endif
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STATUS_CODES
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genLongMsg(int hashbitlen)
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{
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char fn[32], line[SUBMITTER_INFO_LEN];
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int msglen, msgbytelen, done, rv;
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BitSequence Msg[4288], MD[64];
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#ifdef AllowExtendedFunctions
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BitSequence Squeezed[SqueezingOutputLength/8];
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hashState state;
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#endif
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FILE *fp_in, *fp_out;
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if ( (fp_in = fopen("LongMsgKAT.txt", "r")) == NULL ) {
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printf("Couldn't open <LongMsgKAT.txt> for read\n");
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return KAT_FILE_OPEN_ERROR;
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}
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sprintf(fn, "LongMsgKAT_%d.txt", hashbitlen);
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if ( (fp_out = fopen(fn, "w")) == NULL ) {
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printf("Couldn't open <%s> for write\n", fn);
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return KAT_FILE_OPEN_ERROR;
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}
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fprintf(fp_out, "# %s\n", fn);
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if ( FindMarker(fp_in, "# Algorithm Name:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Algorithm Name:%s\n", line);
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}
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else {
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printf("genLongMsg: Couldn't read Algorithm Name\n");
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return KAT_HEADER_ERROR;
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}
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if ( FindMarker(fp_in, "# Principal Submitter:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Principal Submitter:%s\n\n", line);
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}
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else {
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printf("genLongMsg: Couldn't read Principal Submitter\n");
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return KAT_HEADER_ERROR;
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}
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done = 0;
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do {
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if ( FindMarker(fp_in, "Len = ") )
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rv = fscanf(fp_in, "%d", &msglen);
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else
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break;
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msgbytelen = (msglen+7)/8;
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if ( !ReadHex(fp_in, Msg, msgbytelen, "Msg = ") ) {
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printf("ERROR: unable to read 'Msg' from <LongMsgKAT.txt>\n");
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return KAT_DATA_ERROR;
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}
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#ifdef AllowExtendedFunctions
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if (hashbitlen > 0)
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Hash(hashbitlen, Msg, msglen, MD);
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else {
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Init(&state, hashbitlen);
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Update(&state, Msg, msglen);
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Final(&state, 0);
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Squeeze(&state, Squeezed, SqueezingOutputLength);
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}
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#else
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Hash(hashbitlen, Msg, msglen, MD);
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#endif
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fprintf(fp_out, "Len = %d\n", msglen);
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fprintBstr(fp_out, "Msg = ", Msg, msgbytelen);
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#ifdef AllowExtendedFunctions
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if (hashbitlen > 0)
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fprintBstr(fp_out, "MD = ", MD, hashbitlen/8);
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else
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fprintBstr(fp_out, "Squeezed = ", Squeezed, SqueezingOutputLength/8);
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#else
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fprintBstr(fp_out, "MD = ", MD, hashbitlen/8);
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#endif
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} while ( !done );
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printf("finished LongMsgKAT for <%d>\n", hashbitlen);
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fclose(fp_in);
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fclose(fp_out);
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return KAT_SUCCESS;
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}
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STATUS_CODES
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genExtremelyLongMsg(int hashbitlen)
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{
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char fn[32], line[SUBMITTER_INFO_LEN];
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BitSequence Text[65], MD[64];
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#ifdef AllowExtendedFunctions
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BitSequence Squeezed[SqueezingOutputLength/8];
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#endif
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int i, repeat, rv;
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FILE *fp_in, *fp_out;
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hashState state;
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HashReturn retval;
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if ( (fp_in = fopen("ExtremelyLongMsgKAT.txt", "r")) == NULL ) {
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printf("Couldn't open <ExtremelyLongMsgKAT.txt> for read\n");
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return KAT_FILE_OPEN_ERROR;
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}
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sprintf(fn, "ExtremelyLongMsgKAT_%d.txt", hashbitlen);
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if ( (fp_out = fopen(fn, "w")) == NULL ) {
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printf("Couldn't open <%s> for write\n", fn);
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return KAT_FILE_OPEN_ERROR;
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}
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fprintf(fp_out, "# %s\n", fn);
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if ( FindMarker(fp_in, "# Algorithm Name:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Algorithm Name:%s\n", line);
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}
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else {
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printf("genExtremelyLongMsg: Couldn't read Algorithm Name\n");
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return KAT_HEADER_ERROR;
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}
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if ( FindMarker(fp_in, "# Principal Submitter:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Principal Submitter:%s\n\n", line);
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}
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else {
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printf("genExtremelyLongMsg: Couldn't read Principal Submitter\n");
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return KAT_HEADER_ERROR;
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}
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if ( FindMarker(fp_in, "Repeat = ") )
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rv = fscanf(fp_in, "%d", &repeat);
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else {
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printf("ERROR: unable to read 'Repeat' from <ExtremelyLongMsgKAT.txt>\n");
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return KAT_DATA_ERROR;
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}
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if ( FindMarker(fp_in, "Text = ") )
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rv = fscanf(fp_in, "%s", Text);
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else {
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printf("ERROR: unable to read 'Text' from <ExtremelyLongMsgKAT.txt>\n");
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return KAT_DATA_ERROR;
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}
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// memcpy(Text, "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmno", 64);
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if ( (retval = Init(&state, hashbitlen)) != KAT_SUCCESS ) {
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printf("Init returned <%d> in genExtremelyLongMsg\n", retval);
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return KAT_HASH_ERROR;
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}
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for ( i=0; i<repeat; i++ )
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if ( (retval = Update(&state, Text, 512)) != KAT_SUCCESS ) {
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printf("Update returned <%d> in genExtremelyLongMsg\n", retval);
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return KAT_HASH_ERROR;
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}
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if ( (retval = Final(&state, MD)) != KAT_SUCCESS ) {
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printf("Final returned <%d> in genExtremelyLongMsg\n", retval);
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return KAT_HASH_ERROR;
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}
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#ifdef AllowExtendedFunctions
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if (hashbitlen == 0)
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Squeeze(&state, Squeezed, SqueezingOutputLength);
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#endif
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fprintf(fp_out, "Repeat = %d\n", repeat);
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fprintf(fp_out, "Text = %s\n", Text);
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#ifdef AllowExtendedFunctions
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if (hashbitlen > 0)
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fprintBstr(fp_out, "MD = ", MD, hashbitlen/8);
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else
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fprintBstr(fp_out, "Squeezed = ", Squeezed, SqueezingOutputLength/8);
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#else
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fprintBstr(fp_out, "MD = ", MD, hashbitlen/8);
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#endif
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printf("finished ExtremelyLongMsgKAT for <%d>\n", hashbitlen);
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fclose(fp_in);
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fclose(fp_out);
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return KAT_SUCCESS;
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}
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STATUS_CODES
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genMonteCarlo(int hashbitlen)
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{
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char fn[32], line[SUBMITTER_INFO_LEN];
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BitSequence Seed[128], Msg[128], MD[64], Temp[128];
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int i, j, bytelen, rv;
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FILE *fp_in, *fp_out;
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if ( (fp_in = fopen("MonteCarlo.txt", "r")) == NULL ) {
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printf("Couldn't open <MonteCarlo.txt> for read\n");
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return KAT_FILE_OPEN_ERROR;
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}
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sprintf(fn, "MonteCarlo_%d.txt", hashbitlen);
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if ( (fp_out = fopen(fn, "w")) == NULL ) {
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printf("Couldn't open <%s> for write\n", fn);
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return KAT_FILE_OPEN_ERROR;
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}
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fprintf(fp_out, "# %s\n", fn);
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if ( FindMarker(fp_in, "# Algorithm Name:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Algorithm Name:%s\n", line);
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}
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else {
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printf("genMonteCarlo: Couldn't read Algorithm Name\n");
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return KAT_HEADER_ERROR;
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}
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if ( FindMarker(fp_in, "# Principal Submitter:") ) {
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rv = fscanf(fp_in, "%[^\n]\n", line);
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fprintf(fp_out, "# Principal Submitter:%s\n\n", line);
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}
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else {
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printf("genMonteCarlo: Couldn't read Principal Submitter\n");
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return KAT_HEADER_ERROR;
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}
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if ( !ReadHex(fp_in, Seed, 128, "Seed = ") ) {
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printf("ERROR: unable to read 'Seed' from <MonteCarlo.txt>\n");
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return KAT_DATA_ERROR;
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}
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bytelen = hashbitlen / 8;
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memcpy(Msg, Seed, 128);
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fprintBstr(fp_out, "Seed = ", Seed, 128);
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for ( j=0; j<100; j++ ) {
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for ( i=0; i<1000; i++ ) {
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Hash(hashbitlen, Msg, 1024, MD);
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memcpy(Temp, Msg, 128-bytelen);
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memcpy(Msg, MD, bytelen);
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|
memcpy(Msg+bytelen, Temp, 128-bytelen);
|
|
}
|
|
fprintf(fp_out, "\nj = %d\n", j);
|
|
fprintBstr(fp_out, "MD = ", MD, bytelen);
|
|
}
|
|
printf("finished MonteCarloKAT for <%d>\n", hashbitlen);
|
|
|
|
fclose(fp_in);
|
|
fclose(fp_out);
|
|
|
|
return KAT_SUCCESS;
|
|
}
|
|
|
|
#ifdef AllowExtendedFunctions
|
|
STATUS_CODES
|
|
genMonteCarloSqueezing(int hashbitlen)
|
|
{
|
|
char fn[32], line[SUBMITTER_INFO_LEN];
|
|
BitSequence Seed[128], MD[64];
|
|
int i, j, bytelen, rv;
|
|
FILE *fp_in, *fp_out;
|
|
hashState state;
|
|
HashReturn retval;
|
|
|
|
if ( (fp_in = fopen("MonteCarlo.txt", "r")) == NULL ) {
|
|
printf("Couldn't open <MonteCarlo.txt> for read\n");
|
|
return KAT_FILE_OPEN_ERROR;
|
|
}
|
|
|
|
sprintf(fn, "MonteCarlo_%d.txt", hashbitlen);
|
|
if ( (fp_out = fopen(fn, "w")) == NULL ) {
|
|
printf("Couldn't open <%s> for write\n", fn);
|
|
return KAT_FILE_OPEN_ERROR;
|
|
}
|
|
fprintf(fp_out, "# %s\n", fn);
|
|
if ( FindMarker(fp_in, "# Algorithm Name:") ) {
|
|
rv = fscanf(fp_in, "%[^\n]\n", line);
|
|
fprintf(fp_out, "# Algorithm Name:%s\n", line);
|
|
}
|
|
else {
|
|
printf("genMonteCarlo: Couldn't read Algorithm Name\n");
|
|
return KAT_HEADER_ERROR;
|
|
}
|
|
if ( FindMarker(fp_in, "# Principal Submitter:") ) {
|
|
rv = fscanf(fp_in, "%[^\n]\n", line);
|
|
fprintf(fp_out, "# Principal Submitter:%s\n\n", line);
|
|
}
|
|
else {
|
|
printf("genMonteCarlo: Couldn't read Principal Submitter\n");
|
|
return KAT_HEADER_ERROR;
|
|
}
|
|
|
|
if ( !ReadHex(fp_in, Seed, 128, "Seed = ") ) {
|
|
printf("ERROR: unable to read 'Seed' from <MonteCarlo.txt>\n");
|
|
return KAT_DATA_ERROR;
|
|
}
|
|
|
|
fprintBstr(fp_out, "Seed = ", Seed, 128);
|
|
|
|
if ( (retval = Init(&state, hashbitlen)) != KAT_SUCCESS ) {
|
|
printf("Init returned <%d> in genMonteCarloSqueezing\n", retval);
|
|
return KAT_HASH_ERROR;
|
|
}
|
|
if ( (retval = Update(&state, Seed, 128*8)) != KAT_SUCCESS ) {
|
|
printf("Update returned <%d> in genMonteCarloSqueezing\n", retval);
|
|
return KAT_HASH_ERROR;
|
|
}
|
|
if ( (retval = Final(&state, 0)) != KAT_SUCCESS ) {
|
|
printf("Final returned <%d> in genMonteCarloSqueezing\n", retval);
|
|
return KAT_HASH_ERROR;
|
|
}
|
|
bytelen = 64;
|
|
for ( j=0; j<100; j++ ) {
|
|
for ( i=0; i<1000; i++ ) {
|
|
if ( (retval = Squeeze(&state, MD, bytelen*8)) != KAT_SUCCESS ) {
|
|
printf("Squeeze returned <%d> in genMonteCarloSqueezing\n", retval);
|
|
return KAT_HASH_ERROR;
|
|
}
|
|
}
|
|
fprintf(fp_out, "\nj = %d\n", j);
|
|
fprintBstr(fp_out, "MD = ", MD, bytelen);
|
|
}
|
|
printf("finished MonteCarloKAT for <%d>\n", hashbitlen);
|
|
|
|
fclose(fp_in);
|
|
fclose(fp_out);
|
|
|
|
return KAT_SUCCESS;
|
|
}
|
|
|
|
STATUS_CODES
|
|
genDuplexKAT(unsigned int rate, unsigned int capacity, const char *fileName)
|
|
{
|
|
int inLen, inByteLen, outLen, outByteLen, done, rv;
|
|
BitSequence in[256];
|
|
BitSequence out[256];
|
|
FILE *fp_in, *fp_out;
|
|
duplexState state;
|
|
|
|
if ( (fp_in = fopen("DuplexKAT.txt", "r")) == NULL ) {
|
|
printf("Couldn't open <DuplexKAT.txt> for read\n");
|
|
return KAT_FILE_OPEN_ERROR;
|
|
}
|
|
|
|
if ( (fp_out = fopen(fileName, "w")) == NULL ) {
|
|
printf("Couldn't open <%s> for write\n", fileName);
|
|
return KAT_FILE_OPEN_ERROR;
|
|
}
|
|
fprintf(fp_out, "# %s\n", fileName);
|
|
fprintf(fp_out, "# Algorithm: Duplex[f=Keccak-f[1600], pad=pad10*1, r=%d, c=%d, \xCF\x81max=%d]\n", rate, capacity, rate-2);
|
|
|
|
InitDuplex(&state, rate, capacity);
|
|
done = 0;
|
|
outLen = rate;
|
|
outByteLen = (outLen+7)/8;
|
|
do {
|
|
if ( FindMarker(fp_in, "InLen = ") )
|
|
rv = fscanf(fp_in, "%d", &inLen);
|
|
else {
|
|
done = 1;
|
|
break;
|
|
}
|
|
inByteLen = (inLen+7)/8;
|
|
|
|
if ( !ReadHex(fp_in, in, inByteLen, "In = ") ) {
|
|
printf("ERROR: unable to read 'In' from <DuplexKAT.txt>\n");
|
|
return KAT_DATA_ERROR;
|
|
}
|
|
if (inLen <= rate-2) {
|
|
fprintf(fp_out, "\nInLen = %d\n", inLen);
|
|
fprintBstr(fp_out, "In = ", in, inByteLen);
|
|
Duplexing(&state, in, inLen, out, outLen);
|
|
fprintf(fp_out, "OutLen = %d\n", outLen);
|
|
fprintBstr(fp_out, "Out = ", out, outByteLen);
|
|
}
|
|
} while ( !done );
|
|
printf("finished DuplexKAT for <%s>\n", fileName);
|
|
|
|
fclose(fp_in);
|
|
fclose(fp_out);
|
|
|
|
return KAT_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
//
|
|
// ALLOW TO READ HEXADECIMAL ENTRY (KEYS, DATA, TEXT, etc.)
|
|
//
|
|
int
|
|
FindMarker(FILE *infile, const char *marker)
|
|
{
|
|
char line[MAX_MARKER_LEN];
|
|
int i, len;
|
|
|
|
len = (int)strlen(marker);
|
|
if ( len > MAX_MARKER_LEN-1 )
|
|
len = MAX_MARKER_LEN-1;
|
|
|
|
for ( i=0; i<len; i++ )
|
|
if ( (line[i] = fgetc(infile)) == EOF )
|
|
return 0;
|
|
line[len] = '\0';
|
|
|
|
while ( 1 ) {
|
|
if ( !strncmp(line, marker, len) )
|
|
return 1;
|
|
|
|
for ( i=0; i<len-1; i++ )
|
|
line[i] = line[i+1];
|
|
if ( (line[len-1] = fgetc(infile)) == EOF )
|
|
return 0;
|
|
line[len] = '\0';
|
|
}
|
|
|
|
// shouldn't get here
|
|
return 0;
|
|
}
|
|
|
|
//
|
|
// ALLOW TO READ HEXADECIMAL ENTRY (KEYS, DATA, TEXT, etc.)
|
|
//
|
|
int
|
|
ReadHex(FILE *infile, BitSequence *A, int Length, char *str)
|
|
{
|
|
int i, ch, started;
|
|
BitSequence ich;
|
|
|
|
if ( Length == 0 ) {
|
|
A[0] = 0x00;
|
|
return 1;
|
|
}
|
|
memset(A, 0x00, Length);
|
|
started = 0;
|
|
if ( FindMarker(infile, str) )
|
|
while ( (ch = fgetc(infile)) != EOF ) {
|
|
if ( !isxdigit(ch) ) {
|
|
if ( !started ) {
|
|
if ( ch == '\n' )
|
|
break;
|
|
else
|
|
continue;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
started = 1;
|
|
if ( (ch >= '0') && (ch <= '9') )
|
|
ich = ch - '0';
|
|
else if ( (ch >= 'A') && (ch <= 'F') )
|
|
ich = ch - 'A' + 10;
|
|
else if ( (ch >= 'a') && (ch <= 'f') )
|
|
ich = ch - 'a' + 10;
|
|
|
|
for ( i=0; i<Length-1; i++ )
|
|
A[i] = (A[i] << 4) | (A[i+1] >> 4);
|
|
A[Length-1] = (A[Length-1] << 4) | ich;
|
|
}
|
|
else
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
fprintBstr(FILE *fp, char *S, BitSequence *A, int L)
|
|
{
|
|
int i;
|
|
|
|
fprintf(fp, "%s", S);
|
|
|
|
for ( i=0; i<L; i++ )
|
|
fprintf(fp, "%02X", A[i]);
|
|
|
|
if ( L == 0 )
|
|
fprintf(fp, "00");
|
|
|
|
fprintf(fp, "\n");
|
|
}
|