# Improving revocation : will Let's Encrypt support OCSP Must-staple?

**URL:** <https://community.letsencrypt.org/t/improving-revocation-will-lets-encrypt-support-ocsp-must-staple/4334>\
**Category:** Feature Requests\
**Created:** [November 23, 2015, 7:11pm UTC](https://community.letsencrypt.org/t/improving-revocation-will-lets-encrypt-support-ocsp-must-staple/4334 "2015-11-23T19:11:59Z")\
**Posts on this page:** 1\
**Showing post:** 25

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**Author:** ![Osiris](https://avatars.discourse-cdn.com/v4/letter/o/839c29/32.png) [@Osiris](https://community.letsencrypt.org/u/Osiris)\
**Post date:** [April 6, 2016, 8:38pm UTC](https://community.letsencrypt.org/t/improving-revocation-will-lets-encrypt-support-ocsp-must-staple/4334/25 "2016-04-06T20:38:09Z")

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Very strange… I can get a RSA public key certificate **with** the must-staple feature, but when I use an ECDSA key (with must-staple), it malfunctions…?

ECDSA itself is _not_ the problem, but the combination ECDSA and Must-Staple is…

Unfortunately, an internal server error is hard to debug… Could it be this line?

[https://github.com/letsencrypt/boulder/blob/master/ra/registration-authority.go#L590](https://github.com/letsencrypt/boulder/blob/master/ra/registration-authority.go#L590)

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_[View the full topic](https://community.letsencrypt.org/t/improving-revocation-will-lets-encrypt-support-ocsp-must-staple/4334)._