[Bitcoin-development] [softfork proposal] Strict DER signatures

[Pieter Wuille]

On Mon, Jan 26, 2015 at 10:35 AM, Gregory Maxwell <gmaxwell at gmail.com> wrote:
>> I'd like to request a BIP number for this.
>
> Sure. BIP0066.

Four implementations exist now:
* for master: https://github.com/bitcoin/bitcoin/pull/5713 (merged)
* for 0.10.0: https://github.com/bitcoin/bitcoin/pull/5714 (merged,
and included in 0.10.0rc4)
* for 0.9.4: https://github.com/bitcoin/bitcoin/pull/5762
* for 0.8.6: https://github.com/bitcoin/bitcoin/pull/5765

The 0.8 and 0.9 version have reduced test code, as many tests rely on
new test framework code in 0.10 and later, but the implementation code
is identical. Work to improve that is certainly welcome.

-- 
Pieter