Re: [openpgp] On Streaming and Chunking

Peter Gutmann <pgut001@cs.auckland.ac.nz> Fri, 27 March 2015 10:38 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: "openpgp@ietf.org" <openpgp@ietf.org>
Thread-Topic: [openpgp] On Streaming and Chunking
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Date: Fri, 27 Mar 2015 10:37:52 +0000
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Subject: Re: [openpgp] On Streaming and Chunking
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ianG <iang@iang.org> writes:

>One moving part in particular is the interface design.  It has been an
>article of faith for a long time that the crypto libraries should deliver to
>the application a CIPHER metaphor, and that's good enough for any programmer.
>And a MAC metaphor.  And a MODE metaphor.  Which has gradually morphed into a
>CIPHER/MODE/MAC metaphor.

And one with the defaults set wrong.  In Java, do a Cipher.getInstance("AES")
and you get AES in ECB mode.  To paraphrase a quote about C, "it gives you a
loaded gun and points it at your foot by default".

Peter.