Int. Sys V crypt() algorithm
Ed Gould
ed at mtxinu.UUCP
Tue Jun 18 10:20:54 AEST 1985
In article <2284 at sun.uucp> guy at sun.uucp (Guy Harris) writes:
>> > AT&T produced a new encrypt() algorithm for their "international version"
>> > of System V which provides encryption only. Does anyone know what
>> > algorithm is used in this new scheme, in comparison to the almost-but-not-
>> > quite DES algorithm used in earlier versions of UNIX?
>> >
>> > Is the new algorithm still based on DES?
>
>I believe it's still DES based but has been "crippled" so that the Russkies
>can't get a hold of DES technology :-(.
Close, but not quite. There is an export restriction on programs
that can *decrypt* DES, but not on those that can *encrypt*. Removing
setkey() is sufficient to meet the export requirements.
--
Ed Gould mt Xinu, 2910 Seventh St., Berkeley, CA 94710 USA
{ucbvax,decvax}!mtxinu!ed +1 415 644 0146
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