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PyPI · #1451 most downloaded on PyPI
A lightweight and fast pure python ECDSA library
Last release 5 months ago
23 Apr 2026
Ships unpredictably
gaps range from 3 weeks to 3.5 years
Some releases are documented
notes for 11 of 21 stable releases
Nothing withdrawn
no release was ever pulled
8 years old
21 releases · first in 2018
Package name normalized to use underscores to comply with PyPI filename requirements
Changed Security changes
One column per quarter.
PublicKey.toCompressed() function to dump a public key in compressed format
curve.add() function to dynamically add curves to the library
OID integer encoding when single number has more than 2 bytes
Missing point at infinity checks on signature and public key verifications
Fixed Signature r and s range check
root imports: from ellipticcurve import PrivateKey, PublicKey, Signature, Ecdsa, File
Unstable results on certain curves due to missing modulo operator on signature verification
Recovery ID generation and encoding in Signatures
### Added - first official version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
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