Re: [Cryptography] encoding formats should not be committee'ised

2013-10-03 Thread Dave Horsfall
On Thu, 3 Oct 2013, Peter Gutmann wrote:

 For those not familiar with TL1, supposed to be readable here means 
 encoded in ASCII rather than binary.  It's about as readable as 
 EDIFACT and HL7.

In a previous life I had to read, understand, and debug EDIFACT (it was 
OpenLDAP, as I recall).  It wasn't all that difficult; then again, at one 
time I had to know APL\360 (once described as a write-only language).

Want crypto?  Try obscurity :-)

-- Dave
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Re: [Cryptography] encoding formats should not be committee'ised

2013-10-02 Thread Dave Horsfall
On Wed, 2 Oct 2013, Jerry Leichter wrote:

 Always keep in mind - when you argue for easy readability - that one 
 of COBOL's design goals was for programs to be readable and 
 understandable by non-programmers.

Managers, in particular.

-- Dave
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Re: [Cryptography] RSA recommends against use of its own products.

2013-09-28 Thread Dave Horsfall
On Thu, 26 Sep 2013, ianG wrote:

 Right, scratch the Brits and the French.  Maybe AU, NZ?  I don't know. 
 Maybe the Germans / Dutch / Austrians.

At the risk of getting political, I'd recommend against AU (I live there). 
Our new gummint has already shown that it will put its own interests ahead 
of those of the people (cancelling the proposed National Broadband Network 
springs to mind).

Switzerland, perhaps?  They have a history of secrecy...

-- Dave
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Re: [Cryptography] Radioactive random numbers

2013-09-16 Thread Dave Horsfall
On Fri, 13 Sep 2013, Eugen Leitl wrote:

  Given that there is One True Source of randomness to wit radioactive 
 
 What makes you think that e.g. breakdown oin a reverse biased
 Zener diode is any less true random? Or thermal noise in a
 crappy CMOS circuit?

It was a throw-away line; sigh...  The capitals should've been a hint.

And yes, I know about crappy CMOS circuits; I've unintentionally built
enough of them :-)

 In fact, 
 http://en.wikipedia.org/wiki/Hardware_random_number_generator#Physical_phenomena_with_quantum-random_properties
 listens a lot of potential sources, some with a higher
 rate and more private than others.

Thanks.

-- Dave, who must stop being subtle
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[Cryptography] Radioactive random numbers

2013-09-11 Thread Dave Horsfall
Another whacky idea...

Given that there is One True Source of randomness to wit radioactive 
emission, has anyone considered playing with old smoke detectors?

The ionising types are being phased out in favour of optical (at least in 
Australia) so there must be heaps of them lying around.

I know - legislative requirements, HAZMAT etc, but it ought to make for a 
good thought experiment.

-- Dave
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[Cryptography] XORing plaintext with ciphertext

2013-09-07 Thread Dave Horsfall
Got a question that's been bothering me for a whlie, but it's likely 
purely academic.

Take the plaintext and the ciphertext, and XOR them together.  Does the 
result reveal anything about the key or the painttext?

-- Dave
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Re: [Cryptography] XORing plaintext with ciphertext

2013-09-07 Thread Dave Horsfall
Thanks for the response; that's what I thought, but thought I'd better 
ask (I'm still new at this crypto game).

-- Dave
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Re: [Cryptography] Why human-readable IDs (was Re: Email and IM are ideal candidates for mix networks)

2013-08-29 Thread Dave Horsfall
Please stop using that stupid Reply All function; I'm on the list, and 
will hence see your reply anyway.

I don't need my own bloody personal copy of it.

-- Dave
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Re: [Cryptography] Why human-readable IDs (was Re: Email and IM are ideal candidates for mix networks)

2013-08-28 Thread Dave Horsfall
On Wed, 28 Aug 2013, Perry E. Metzger wrote:

 Anyway, I've already started implementing my proposed solution to that 
 part of the problem. There is still a need for a distributed database to 
 handle the lookup load, though, and one that is not the DNS.

(Delurking)

This suggests the use of LDAP.

-- Dave
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