Re: encrypted SPSS .sav files

[Ben Pfaff]

I've had that suggestion a couple of times now.  It is a reasonable thought.
I will consider it.

On Wed, Oct 30, 2013 at 9:41 AM, Michał Dubrawski
<address@hidden> wrote:
> Dear Ben,
>
> That's great news :-) I'm really impressed. Reading your emails about what
> you have found out abut encryption and how was for me like reading very
> interesting detective story.
> This thought came to me: if SPSS encryption is so poor, maybe we should
> think about better encryption as additional option (working only on PSPP).
> It would be an option only for PSPP users, but users of previous versions of
> SPSS also cannot read encrypted files with encryption designed by SPSS. The
> difference is (if they have a password) they can always get PSPP, open it
> and save as non-encrypted file readable for any SPSS version (if they insist
> on using it ;-) ).
>
> warm regards,
> Michal
>
>>
>> Date: Tue, 29 Oct 2013 22:55:13 -0700
>> From: Ben Pfaff <address@hidden>
>> To: Basti?n D?az <address@hidden>
>> Cc: "address@hidden" <address@hidden>
>> Subject: Re: encrypted SPSS .sav files
>> Message-ID: <address@hidden>
>> Content-Type: text/plain; charset=us-ascii
>>
>>
>> I've now written code that reliably reads an encrypted .sav file, given
>> the password.  I'm concerned about poor crypto design, so I'm going to
>> ask people who are more expert than me to evaluate the design defects
>> before I publish the code.
>>
>> I've also written a program to decode an encoded password to obtain the
>> human readable password.  (This is much less interesting, but still
>> useful for interoperability.)
>>
>>
>>
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