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DMR TYT BP16 Encryption Mode WIP; #302

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Code is not working as-is, committed for anonymous submitter to have access to certain items in code;
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lwvmobile
2025-08-15 12:21:27 -04:00
parent c888dfc1d6
commit 8f092e293f
6 changed files with 240 additions and 106 deletions
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31
src/dsd_main.c
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@@ -58,6 +58,7 @@
ctx.rounds = nbround;
}
void handler(int sgnl)
{
UNUSED(sgnl);
@@ -1080,6 +1081,10 @@
state->DMRvcR = 0;
state->dropL = 256;
state->dropR = 256;
state->tyt_ap = 0;
state->tyt_bp = 0;
state->tyt_ep = 0;
//ks array storage and counters
memset (state->ks_octetL, 0, sizeof(state->ks_octetL));
@@ -1575,12 +1580,13 @@
printf (" \n");
printf (" -2 <hex> Manually Enter TYT and Enforce 16-bit BP Key Value (DMR) (Hex Value) \n");
printf (" \n");
printf (" -! <hex> Manually Enter TYT Advanced Privacy AP Hex Key (see example below)\n");
printf (" -! <hex> Manually Enter TYT and Enforce Advanced Privacy AP Hex Key (see example below)\n");
printf (" Encapulate in Single Quotation Marks; Space every 16 chars.\n");
printf (" -H '736B9A9C5645288B 243AD5CB8701EF8A' \n");
printf (" \n");
printf (" -5 <hex> Manually Enter 48-bit BP Key Value (DMR) (Hex Value) \n");
printf (" -! '736B9A9C5645288B 243AD5CB8701EF8A' \n");
printf (" \n");
printf (" -5 <hex> Manually Enter TYT and Enforce Enhanced Privacy EP Hex Key (see example below)\n");
printf (" Encapulate in Single Quotation Marks; Space every 16 chars.\n");
printf (" -! '736B9A9C5645288B 243AD5CB8701EF8A' \n");
printf (" -k <file> Import Key List from csv file (Decimal Format) -- Lower Case 'k'.\n");
printf (" Only supports NXDN, DMR Basic Privacy (decimal value). \n");
printf (" (dPMR and Hytera 32/64 char not supported, DMR uses TG value as key id -- EXPERIMENTAL!!). \n");
@@ -1966,30 +1972,29 @@
//get user TYT BP Key and Force Its application
case '2':
state.M = 0x16; //16-bit TYT 'BP' Keys
state.tyt_bp = 1;
sscanf (optarg, "%llX", &state.H);
state.H = state.H & 0xFFFF; //truncate to 16-bits
fprintf (stderr,"DMR TYT 16-bit Key %llX with Forced Application\n", state.H);
fprintf (stderr,"DMR TYT 16-bit Key 0x%llX with Forced Application\n", state.H);
break;
//get user TYT AP Key and Force Its application
case '!':
tyt_ap_init();
state.tyt_ap = 1;
fprintf (stderr,"DMR AP 128-bit Key %llX with Forced Application\n", state.H);
fprintf (stderr,"DMR TYT AP 128-bit Key with Forced Application\n");
break;
//Enter and Force Applicaiton of a a 48-bit AMBE Keystream (hex) for 'CCR' radios and weird 'BP'
//get user TYT EP Key and Force Its application
case '5':
state.M = 0x48; //48-bit AMBE Keystream for any generic keystream application
sscanf (optarg, "%llX", &state.H);
state.H = state.H & 0xFFFFFFFFFFFF; //truncate to 48-bits
fprintf (stderr,"AMBE+2 48-bit Key %llX with Forced Application\n", state.H);
//TODO: This, or combine with above with -! AP:KEY or EP:KEY (or similar)
state.tyt_ep = 1;
fprintf (stderr,"DMR TYT EP Key with Forced Application\n");
break;
case '3':
opts.dmr_le = 0;
fprintf (stderr,"DMR Late Entry Encryption Identifiers Disabled (VC6 Single Burst)\n");
fprintf (stderr,"DMRA Late Entry Encryption Identifiers Disabled\n");
break;
case 'y': //use experimental 'float' audio output