kopia lustrzana https://github.com/Hamlib/Hamlib
83 wiersze
2.6 KiB
C
83 wiersze
2.6 KiB
C
/*
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* password.c
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*
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* AESStringCrypt 1.1
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* Copyright (C) 2007, 2008, 2009, 2012, 2015
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*
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* Contributors:
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* Glenn Washburn <crass@berlios.de>
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* Paul E. Jones <paulej@packetizer.com>
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* Mauro Gilardi <galvao.m@gmail.com>
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*
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* This software is licensed as "freeware." Permission to distribute
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* this software in source and binary forms is hereby granted without a
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* fee. THIS SOFTWARE IS PROVIDED 'AS IS' AND WITHOUT ANY EXPRESSED OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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* THE AUTHOR SHALL NOT BE HELD LIABLE FOR ANY DAMAGES RESULTING FROM
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* THE USE OF THIS SOFTWARE, EITHER DIRECTLY OR INDIRECTLY, INCLUDING,
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* BUT NOT LIMITED TO, LOSS OF DATA OR DATA BEING RENDERED INACCURATE.
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*
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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 "hamlib/rig.h"
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#include "password.h"
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#include "md5.h"
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#define HAMLIB_SECRET_LENGTH 32
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// makes a 32-byte secret key from password using MD5
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// yes -- this is security-by-obscurity
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// but password hacking software doesn't use this type of logic
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// we want a repeatable password that is not subject to "normal" md5 decryption logic
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// could use a MAC address to make it more random but making that portable is TBD
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HAMLIB_EXPORT(void) rig_password_generate_secret(char *pass,
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char result[HAMLIB_SECRET_LENGTH + 1])
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{
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unsigned int product;
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char newpass[256];
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product = pass[0];
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int i;
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for (i = 1; pass[i]; ++i)
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{
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product *= pass[i];
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}
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srand(product);
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snprintf(newpass, sizeof(newpass) - 1, "%s\t%lu\t%lu", pass, (long)rand(),
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(long)time(NULL));
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//printf("debug=%s\n", newpass);
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char *md5str = rig_make_md5(newpass);
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strncpy(result, md5str, HAMLIB_SECRET_LENGTH);
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// now that we have the md5 we'll do the AES256
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printf("Shared Secret: %s\n", result);
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printf("\nCan be used with rigctl --password [secret]\nOr can be place in ~/.hamlib_settings\n");
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}
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//#define TESTPASSWORD
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#ifdef TESTPASSWORD
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int main(int argc, char *argv[])
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{
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char secret[HAMLIB_SECRET_LENGTH + 1];
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char password[HAMLIB_SECRET_LENGTH +
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1]; // maximum length usable for password too
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// anything longer will not be used to generate the secret
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if (argc == 1) { strcpy(password, "testpass"); }
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else { strcpy(password, argv[1]); }
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printf("Using password \"%s\" to generate shared key\n", password);
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rig_password_generate_secret(password, secret);
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return 0;
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}
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#endif
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