<PackageReference Include="SSH.NET" Version="2025.1.0" />

ED25519Key

public class ED25519Key : Key, IDisposable
Contains ED25519 private and public key.
using Org.BouncyCastle.Math.EC.Rfc8032; using Renci.SshNet.Common; using Renci.SshNet.Security.Cryptography; using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Numerics; using System; using System.Collections.Generic; using System.Collections.ObjectModel; namespace Renci.SshNet { public class PrivateKeyConnectionInfo : ConnectionInfo, IDisposable { private bool _isDisposed; public ICollection<IPrivateKeySource> KeyFiles { get; set; } public PrivateKeyConnectionInfo(string host, string username, params IPrivateKeySource[] keyFiles) : this(host, 22, username, ProxyTypes.None, string.Empty, 0, string.Empty, string.Empty, keyFiles) { } public PrivateKeyConnectionInfo(string host, int port, string username, params IPrivateKeySource[] keyFiles) : this(host, port, username, ProxyTypes.None, string.Empty, 0, string.Empty, string.Empty, keyFiles) { } public PrivateKeyConnectionInfo(string host, int port, string username, ProxyTypes proxyType, string proxyHost, int proxyPort, params IPrivateKeySource[] keyFiles) : this(host, port, username, proxyType, proxyHost, proxyPort, string.Empty, string.Empty, keyFiles) { } public PrivateKeyConnectionInfo(string host, int port, string username, ProxyTypes proxyType, string proxyHost, int proxyPort, string proxyUsername, params IPrivateKeySource[] keyFiles) : this(host, port, username, proxyType, proxyHost, proxyPort, proxyUsername, string.Empty, keyFiles) { } public PrivateKeyConnectionInfo(string host, string username, ProxyTypes proxyType, string proxyHost, int proxyPort, params IPrivateKeySource[] keyFiles) : this(host, 22, username, proxyType, proxyHost, proxyPort, string.Empty, string.Empty, keyFiles) { } public PrivateKeyConnectionInfo(string host, string username, ProxyTypes proxyType, string proxyHost, int proxyPort, string proxyUsername, params IPrivateKeySource[] keyFiles) : this(host, 22, username, proxyType, proxyHost, proxyPort, proxyUsername, string.Empty, keyFiles) { } public PrivateKeyConnectionInfo(string host, string username, ProxyTypes proxyType, string proxyHost, int proxyPort, string proxyUsername, string proxyPassword, params IPrivateKeySource[] keyFiles) : this(host, 22, username, proxyType, proxyHost, proxyPort, proxyUsername, proxyPassword, keyFiles) { } public PrivateKeyConnectionInfo(string host, int port, string username, ProxyTypes proxyType, string proxyHost, int proxyPort, string proxyUsername, string proxyPassword, params IPrivateKeySource[] keyFiles) : base(host, port, username, proxyType, proxyHost, proxyPort, proxyUsername, proxyPassword, new PrivateKeyAuthenticationMethod(username, keyFiles)) { KeyFiles = new Collection<IPrivateKeySource>(keyFiles); } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } protected virtual void Dispose(bool disposing) { if (!_isDisposed && disposing) { if (base.AuthenticationMethods != null) { foreach (AuthenticationMethod authenticationMethod in base.AuthenticationMethods) { authenticationMethod.Dispose(); } } _isDisposed = true; } } } } namespace Renci.SshNet.Security { public class ED25519Key : Key, IDisposable { private ED25519DigitalSignature _digitalSignature; private bool _isDisposed; public override BigInteger[] Public => new BigInteger[1] { Extensions.ToBigInteger2(PublicKey) }; public override int KeyLength => Ed25519.PublicKeySize * 8; protected internal override DigitalSignature DigitalSignature { get { if (_digitalSignature == null) _digitalSignature = new ED25519DigitalSignature(this); return _digitalSignature; } } public byte[] PublicKey { get; } public byte[] PrivateKey { get; } public override string ToString() { return "ssh-ed25519"; } public ED25519Key(SshKeyData publicKeyData) { ThrowHelper.ThrowIfNull(publicKeyData, "publicKeyData"); if (publicKeyData.Name != "ssh-ed25519" || publicKeyData.Keys.Length != 1) throw new ArgumentException($"""{publicKeyData.Name}""{publicKeyData.Keys.Length}""", "publicKeyData"); PublicKey = Extensions.Pad(Extensions.TrimLeadingZeros(Extensions.ToByteArray(publicKeyData.Keys[0], false, true)), Ed25519.PublicKeySize); PrivateKey = new byte[Ed25519.SecretKeySize]; } public ED25519Key(byte[] privateKeyData) { PrivateKey = new byte[Ed25519.SecretKeySize]; PublicKey = new byte[Ed25519.PublicKeySize]; Buffer.BlockCopy(privateKeyData, 0, PrivateKey, 0, Ed25519.SecretKeySize); Ed25519.GeneratePublicKey(privateKeyData, 0, PublicKey, 0); } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } protected virtual void Dispose(bool disposing) { if (!_isDisposed && disposing) _isDisposed = true; } } }