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#eddsa #ed25519 #ecc #ed25519-signature

xeddsa

Implementation of the XEdDSA signature algorithm designed for Signal by Trevor Perrin, et al

by Dominik George

3 stable releases

1.0.2 Nov 11, 2023
1.0.1 Nov 10, 2023

#2737 in Cryptography

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1,160 downloads per month

Apache-2.0

16KB
233 lines

Implementation of the XEdDSA signature algorithm

XEdDSA is an Elliptic-Curve signature algorithm designed by the Signal project. XEdDSA is designed to use the same Elliptic-Curve keys both for Diffie-Hellman key exchange and for EdDSA signatures.

Features

The following features of the specification are implemented:

  • Utility functions to implement specific algorithms
  • Concrete implementation for XEd25519 (on Curve25519, compatible with curve25519-dalek)

Implementation of the XEdDSA signature algorithm

XEdDSA is an Elliptic-Curve signature algorithm designed by the Signal project. XEdDSA is designed to use the same Elliptic-Curve keys both for Diffie-Hellman key exchange and for EdDSA signatures.

Features

The following features of the specification are implemented:

  • Utility functions to implement specific algorithms
  • Concrete implementation for XEd25519 (on Curve25519, compatible with curve25519-dalek)

License: Apache-2.0

Dependencies

~2.6–4MB
~83K SLoC