7 Apr
1993
7 Apr
'93
9:32 p.m.
Re: encrypting modem links
I'm wondering if there is a way to do this with PCs? Yes, with difficulty, and not transparently.
Is there a way to encrypt a remote users entire connection with the BBS, so that they would have to have a special term program to access the system?
For PC's, replacing the terminal software is really the best way. There is no effective abstraction of serial port hardware in the PC world. The int 0x14 driver in the BIOS was rampantly defective, and MSDOS does not provide a standard interface.
Or, we could impliment an "external protocal" like zmodem. This would simply take keystrokes, buffer them, then encrypt/decrypt them. Make the source portable, and obtainable.