Releasing GIL in cryptographic operations

[JakubKahovec]

I'd like to ask if GIL gets released when cryptographic operations are being performed as I can't find it in the code, i.e

cryptography/src/rust/src/backend/kdf.rs

Line 10 in 6091306

pub(crate) fn derive_pbkdf2_hmac<'p>(

[alex]

Not really. I thought we did for things like scrypt, but I don't see it, so I guess not. I'd be open to taking PRs for these though

…

On Wed, Sep 11, 2024, 9:19 AM Jakub Kahovec ***@***.***> wrote: I'd like to ask if GIL gets released when cryptographic operations are being performed as I can't find it in the code, i.e https://github.com/pyca/cryptography/blob/60913069bb27d788c57687840a8b1b54904e9139/src/rust/src/backend/kdf.rs#L10 — Reply to this email directly, view it on GitHub <#11585>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAAGBA76QMRPU377PPVYV3ZWA7NLAVCNFSM6AAAAABOA6WQYWVHI2DSMVQWIX3LMV43ASLTON2WKOZSGUYTSNZTGI3TCMI> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[jkahovec]

Ok, I was kind of puzzled by this comment
#6896 (comment)

[alex]

That predates a lot of reactors, including moving to rust. Cffi used to implicitly drop the GIL during all calls to openssl

…

On Wed, Sep 11, 2024, 10:48 AM Jakub Kahovec ***@***.***> wrote: Ok, I was kind of puzzled by this comment #6896 (comment) <#6896 (comment)> — Reply to this email directly, view it on GitHub <#11585 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAAGBBAWICSB3OOGVB5DELZWBJ2DAVCNFSM6AAAAABOA6WQYWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGNBTHA4TGMRVGY> . You are receiving this because you commented.Message ID: ***@***.***>