8 Jun
1993
8 Jun
'93
3:27 p.m.
FYI The Wall Street Journal, 7 June 93, page B7, has an AT&T ad for an encrypting communications box called "Surity Telephone Device". It plugs between a regular phone and the phone jack. Anybody know what's inside? Is this new? Also, page B6 has a so-so article on digital signatures. bf