From: Ruby Facet <sechelon@...>
Date: 2008-08-03T18:27:51+09:00
Subject: Re: alphanumeric encrypt/decrypt

Todd, thank you. I think that will work for me. Just to note that we 
can't remove one '=' in encrypt and add one in decrypt, the number of 
'=' could vary.

> s = '1231243234232';
> [s].pack('m')
=> "MTIzMTI0MzIzNDIzMg==\n"

Todd Benson wrote:
> On Sun, Aug 3, 2008 at 12:19 AM, Ruby Facet <sechelon@ymail.com> wrote:
>> Hello,
>>
>> Is there an encryption (decryption) routine that will return only
>> alphanumeric characters? Looking forward to your help.
>>
>> RF
> 
> s = 'aoa3(;12)>,$!'
> [s].pack('m').chomp
> 
> => "YW9hMyg71mwyKT4sJC="
> 
> I haven't read the RFC for base64, but it looks like you would then
> need to allow the '=' symbol along with letters and numbers, but no
> other special characters besides that.  Perhaps '=' is a padding
> character.
> 
> cheers,
> Todd

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