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* SPARKSkein released
@ 2010-08-16  7:37 Rod Chapman
  2010-08-16 11:42 ` Peter C. Chapin
  2010-08-16 16:18 ` Yannick Duchêne (Hibou57)
  0 siblings, 2 replies; 3+ messages in thread
From: Rod Chapman @ 2010-08-16  7:37 UTC (permalink / raw)


Altran Praxis and AdaCore have released SPARKSkein - a new reference
implementation of Skein-512 written and verified using the SPARK
language and toolset. In particular, this release includes a complete
proof of type-safety for the implementation, test cases for structural
coverage, performance, and the reference test vectors from the Skein
specification. Performance is very close to that of the C reference
implementation.

Check it out at www.skein-hash.info

There's also a technical paper describing the implementation and
results, available from
the same place.

 - Rod Chapman, SPARK Team, Altran Praxis




^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: SPARKSkein released
  2010-08-16  7:37 SPARKSkein released Rod Chapman
@ 2010-08-16 11:42 ` Peter C. Chapin
  2010-08-16 16:18 ` Yannick Duchêne (Hibou57)
  1 sibling, 0 replies; 3+ messages in thread
From: Peter C. Chapin @ 2010-08-16 11:42 UTC (permalink / raw)


On 2010-08-16 03:37, Rod Chapman wrote:

> Altran Praxis and AdaCore have released SPARKSkein - a new reference
> implementation of Skein-512 written and verified using the SPARK
> language and toolset...

This is great! Thanks for pointing it out.

Peter



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: SPARKSkein released
  2010-08-16  7:37 SPARKSkein released Rod Chapman
  2010-08-16 11:42 ` Peter C. Chapin
@ 2010-08-16 16:18 ` Yannick Duchêne (Hibou57)
  1 sibling, 0 replies; 3+ messages in thread
From: Yannick Duchêne (Hibou57) @ 2010-08-16 16:18 UTC (permalink / raw)


Le Mon, 16 Aug 2010 09:37:59 +0200, Rod Chapman  
<roderick.chapman@googlemail.com> a écrit:

> Altran Praxis and AdaCore have released SPARKSkein - a new reference
> implementation of Skein-512 written and verified using the SPARK
> language and toolset. In particular, this release includes a complete
> proof of type-safety for the implementation, test cases for structural
> coverage, performance, and the reference test vectors from the Skein
> specification. Performance is very close to that of the C reference
> implementation.
>
> Check it out at www.skein-hash.info
>
> There's also a technical paper describing the implementation and
> results, available from
> the same place.
>
>  - Rod Chapman, SPARK Team, Altran Praxis

Was useful:
http://www.skein-hash.info/sites/default/files/SPARKSkein.pdf
says
> [...]
> 4.1.1 Prover says no…a bug is discovered
> The subprogram Skein_512_Final caused someproblems, and led to the  
> discovery of a subtle
> corner-case bug.
> [...]



^ permalink raw reply	[flat|nested] 3+ messages in thread

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2010-08-16 11:42 ` Peter C. Chapin
2010-08-16 16:18 ` Yannick Duchêne (Hibou57)

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