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Groups > comp.programming > #12508

Re: string encryption

From David Spencer <spencer@panix.com>
Newsgroups comp.programming
Subject Re: string encryption
Date 2021-04-28 18:00 +0000
Organization PANIX Public Access Internet and UNIX, NYC
Message-ID <s6c7rm$jtk$1@reader1.panix.com> (permalink)
References <1ba37dc7-803d-40ba-9e83-c4bd0b5f1394n@googlegroups.com> <s6c7ol$ejg$1@dont-email.me>

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David Brown <david.brown@hesbynett.no> writes:

>On 28/04/2021 16:27, Malcolm McLean wrote:
>> What's the best method for cheap and cheerful string encryption,
>> which takes a plaintext string and a short string as a key, and
>> returns a crypted string? The encrypted text must be a string, so
>> the encryption must never create a nul character. It might also be
>> best not to create ascii control characters, or non-ascii
>> characters.
>> 

>Any preferences for language?  Some languages have such functions in
>their standard libraries.  Any need for standards or compatibility, or
>is it just for your own use?

>You could take your string as a list of bytes, step through it xor'ing
>with the key string, then uuencode the result to get a string again.  It
>will be okay if you are only encrypting a few short strings with the
>same key, and if there is no obvious known pattern in the strings to aid
>cracking.

Or he could do his own homework ...

-- 
dhs spencer@panix.com

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Thread

string encryption Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-04-28 07:27 -0700
  Re: string encryption Kristjan Robam <he12457@hotmail.com> - 2021-04-28 08:39 -0700
  Re: string encryption David Brown <david.brown@hesbynett.no> - 2021-04-28 19:58 +0200
    Re: string encryption David Spencer <spencer@panix.com> - 2021-04-28 18:00 +0000
      Re: string encryption David Brown <david.brown@hesbynett.no> - 2021-04-28 20:47 +0200
      Re: string encryption Kristjan Robam <rob999999999@yahoo.com> - 2021-04-29 02:26 -0700
    Re: string encryption Kristjan Robam <ya12983@mail.com> - 2021-04-28 12:14 -0700
    Re: string encryption Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-04-28 14:33 -0700
    Re: string encryption Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-04-28 14:39 -0700
  Re: string encryption "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-04-28 21:55 +0200
    Re: string encryption Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-04-28 14:33 -0700
      Re: string encryption "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-04-29 08:06 +0200
        Re: string encryption David Brown <david.brown@hesbynett.no> - 2021-04-29 09:38 +0200
          Re: string encryption "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-04-29 10:00 +0200
          Re: string encryption Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-29 22:33 +0100
      Re: string encryption David Brown <david.brown@hesbynett.no> - 2021-04-29 09:37 +0200
        Re: string encryption Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-04-29 06:40 -0700
          Re: string encryption David Brown <david.brown@hesbynett.no> - 2021-04-29 17:01 +0200

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