Ed25519 KeyGen

Category: Asymmetric & Elliptic Curve · Node Type ID: asymmetric-ed25519-keygen

Generates Ed25519 32-byte keypair

Overview

Generates a high-speed, constant-time Ed25519 (Twisted Edwards curve Edwards25519, RFC 8032 / FIPS 186-5) digital signature keypair consisting of a 32-byte private seed and a 32-byte compressed public key.

When to Use

Generating compact 32-byte keypairs for Ed25519 Sign and Ed25519 Verify in SSH, TLS 1.3, Signal, WireGuard, or Solana/blockchain protocols.

Parameter Configuration

Ed25519 KeyGen has no configurable parameters because RFC 8032 fixes all PureEdDSA domain parameters (curve Edwards25519, SHA-512 internal hashing, and 32-byte key sizes).

Port I/O Specification

See Ports & Connections for general wiring rules, data type colors, and dynamic port creation.

Input Ports

This node has no input ports.

Output Ports

Port Nature: Fixed Output Ports (2 total).

Port Name	Port ID	Data Type	Visibility Condition	Description
`Private Key`	`privateKey`	`Bytes` (32B)	Always visible	32-byte (256-bit) Ed25519 private seed.
`Public Key`	`publicKey`	`Bytes` (32B)	Always visible	32-byte (256-bit) compressed Ed25519 public key point.

Error Cases

This node has no runtime failure cases (errorProfile: none) and always succeeds for any valid typed input.

Examples

Generating an Ed25519 Keypair for Signing

Create a 32-byte Ed25519 private and public key.

Place Ed25519 KeyGen and wire Private Key to Ed25519 Sign and Public Key to Ed25519 Verify.