Re: Double Encryption Illegal?
From: Paul Schlyter <pausch_at_saafNOSPAM.se>
Date: 2000/09/20
Message-ID: <8q9idj$dvp$1_at_merope.saaf.se>#1/1
>> In article <jgfunj-1709002126000001_at_dial-243-155.itexas.net>,
>> wtshaw <jgfunj_at_vgrknf.arg> wrote:
>>
>>> In article <8q1tfb$bj1$1_at_merope.saaf.se>, pausch_at_saafNOSPAM.se (Paul
>>> Schlyter) wrote:
>>>
>>>> In article <jgfunj-1609002156160001_at_dial-245-138.itexas.net>,
>>>> wtshaw <jgfunj_at_vgrknf.arg> wrote:
>>>>
>>>>> When a person uses 3-DES, they are single encrypting with 3-DES.
>>>>
>>>> FYI: 3-DES consists of three rounds of DES, using two or three
>>>> different keys.
>>>
>>> That is the definition of a newer algorithm than just plain DES. It
>>> is not DES.
>>
>> Well, if you consider any combination of crypto algorithm as "one
>> single, newer, algorithm", then there is of course no such thing
>> as "double encryption" or "triple encryption": you've just defined
>> it as non-existent....
Date: 2000/09/20
Message-ID: <8q9idj$dvp$1_at_merope.saaf.se>#1/1
In article <39C793AD.1970695A_at_aspi.net>, Trevor L. Jackson, III <fullmoon_at_aspi.net> wrote:
> Paul Schlyter wrote: >
>> In article <jgfunj-1709002126000001_at_dial-243-155.itexas.net>,
>> wtshaw <jgfunj_at_vgrknf.arg> wrote:
>>
>>> In article <8q1tfb$bj1$1_at_merope.saaf.se>, pausch_at_saafNOSPAM.se (Paul
>>> Schlyter) wrote:
>>>
>>>> In article <jgfunj-1609002156160001_at_dial-245-138.itexas.net>,
>>>> wtshaw <jgfunj_at_vgrknf.arg> wrote:
>>>>
>>>>> When a person uses 3-DES, they are single encrypting with 3-DES.
>>>>
>>>> FYI: 3-DES consists of three rounds of DES, using two or three
>>>> different keys.
>>>
>>> That is the definition of a newer algorithm than just plain DES. It
>>> is not DES.
>>
>> Well, if you consider any combination of crypto algorithm as "one
>> single, newer, algorithm", then there is of course no such thing
>> as "double encryption" or "triple encryption": you've just defined
>> it as non-existent....
> > The opposing view point would be to consider DES as hexadectuple > encryption. Or worse.
As you can see, either extremistic view will carry you astray. Quite often the middle road is best.
-- ---------------------------------------------------------------- Paul Schlyter, Swedish Amateur Astronomer's Society (SAAF) Grev Turegatan 40, S-114 38 Stockholm, SWEDEN e-mail: pausch at saaf dot se or paul.schlyter at ausys dot se WWW: http://hotel04.ausys.se/pausch http://welcome.to/pauschReceived on Wed Sep 20 2000 - 00:00:00 CEST