Ed25519

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Ed25519 is an EdDSA (Edwards-curve Digital Signature Algorithm) signature scheme using SHA-256/512 and Curve25519 (elliptic curve offering 128 bits of security and designed for use with the elliptic curve Diffie–Hellman (ECDH) key agreement scheme).

Ed25519 with Trezor

GPG

Trezor device can securely generate GPG keys for signing of emails or documents (using the NIST256P1 and Ed25519 curves).

See also GPG

SSH Login

The Ed25519 curve and NIST256P1 can be used for SSH login.

See also SSH