# < Summary

Information

Class: | Renci.SshNet.Security.Cryptography.ED25519DigitalSignature
Assembly: | Renci.SshNet
File(s): | \home\appveyor\projects\ssh-net\src\Renci.SshNet\Security\Cryptography\ED25519DigitalSignature.cs

Line coverage
62%

Covered lines: | 18
Uncovered lines: | 11
Coverable lines: | 29
Total lines: | 91
Line coverage: | 62%

Branch coverage
50%

Covered branches: | 3
Total branches: | 6
Branch coverage: | 50%

Method coverage

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# Metrics

Method | Branch coverage | Cyclomatic complexity | Line coverage
--- | --- | --- | ---
.ctor(...) | 50% | 2 | 71.42%
Verify(...) | 100% | 1 | 100%
Sign(...) | 100% | 1 | 100%
Dispose() | 100% | 1 | 0%
Dispose(...) | 50% | 4 | 44.44%
Finalize() | 100% | 1 | 100%

# File(s)

## \home\appveyor\projects\ssh-net\src\Renci.SshNet\Security\Cryptography\ED25519DigitalSignature.cs

| # | Line |  | Line coverage
--- | --- | --- | --- | ---
|  | `1` |  | `using System;`
|  | `2` |  | `using Renci.SshNet.Common;`
|  | `3` |  | `using Renci.SshNet.Security.Chaos.NaCl;`
|  | `4` |  | ``
|  | `5` |  | `namespace Renci.SshNet.Security.Cryptography`
|  | `6` |  | `{`
|  | `7` |  | `/// <summary>`
|  | `8` |  | `/// Implements ECDSA digital signature algorithm.`
|  | `9` |  | `/// </summary>`
|  | `10` |  | `public class ED25519DigitalSignature : DigitalSignature, IDisposable`
|  | `11` |  | `{`
|  | `12` |  | `private readonly ED25519Key _key;`
|  | `13` |  | `private bool _isDisposed;`
|  | `14` |  | ``
|  | `15` |  | `/// <summary>`
|  | `16` |  | `/// Initializes a new instance of the <see cref="ED25519DigitalSignature" /> class.`
|  | `17` |  | `/// </summary>`
|  | `18` |  | `/// <param name="key">The ED25519Key key.</param>`
|  | `19` |  | `/// <exception cref="ArgumentNullException"><paramref name="key"/> is <see langword="null"/>.</exception>`
| 10 | `20` |  | `public ED25519DigitalSignature(ED25519Key key)`
| 10 | `21` |  | `{`
| 10 | `22` |  | `if (key is null)`
| 0 | `23` |  | `{`
| 0 | `24` |  | `throw new ArgumentNullException(nameof(key));`
|  | `25` |  | `}`
|  | `26` |  | ``
| 10 | `27` |  | `_key = key;`
| 10 | `28` |  | `}`
|  | `29` |  | ``
|  | `30` |  | `/// <summary>`
|  | `31` |  | `/// Verifies the signature.`
|  | `32` |  | `/// </summary>`
|  | `33` |  | `/// <param name="input">The input.</param>`
|  | `34` |  | `/// <param name="signature">The signature.</param>`
|  | `35` |  | `/// <returns>`
|  | `36` |  | `/// <see langword="true"/> if signature was successfully verified; otherwise <see langword="false"/>.`
|  | `37` |  | `/// </returns>`
|  | `38` |  | `/// <exception cref="InvalidOperationException">Invalid signature.</exception>`
|  | `39` |  | `public override bool Verify(byte[] input, byte[] signature)`
| 3 | `40` |  | `{`
| 3 | `41` |  | `return Ed25519.Verify(signature, input, _key.PublicKey);`
| 3 | `42` |  | `}`
|  | `43` |  | ``
|  | `44` |  | `/// <summary>`
|  | `45` |  | `/// Creates the signature.`
|  | `46` |  | `/// </summary>`
|  | `47` |  | `/// <param name="input">The input.</param>`
|  | `48` |  | `/// <returns>`
|  | `49` |  | `/// Signed input data.`
|  | `50` |  | `/// </returns>`
|  | `51` |  | `/// <exception cref="SshException">Invalid ED25519Key key.</exception>`
|  | `52` |  | `public override byte[] Sign(byte[] input)`
| 1 | `53` |  | `{`
| 1 | `54` |  | `return Ed25519.Sign(input, _key.PrivateKey);`
| 1 | `55` |  | `}`
|  | `56` |  | ``
|  | `57` |  | `/// <summary>`
|  | `58` |  | `/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.`
|  | `59` |  | `/// </summary>`
|  | `60` |  | `public void Dispose()`
| 0 | `61` |  | `{`
| 0 | `62` |  | `Dispose(disposing: true);`
| 0 | `63` |  | `GC.SuppressFinalize(this);`
| 0 | `64` |  | `}`
|  | `65` |  | ``
|  | `66` |  | `/// <summary>`
|  | `67` |  | `/// Releases unmanaged and - optionally - managed resources.`
|  | `68` |  | `/// </summary>`
|  | `69` |  | `/// <param name="disposing"><see langword="true"/> to release both managed and unmanaged resources; <see langwor`
|  | `70` |  | `protected virtual void Dispose(bool disposing)`
| 10 | `71` |  | `{`
| 10 | `72` |  | `if (_isDisposed)`
| 0 | `73` |  | `{`
| 0 | `74` |  | `return;`
|  | `75` |  | `}`
|  | `76` |  | ``
| 10 | `77` |  | `if (disposing)`
| 0 | `78` |  | `{`
| 0 | `79` |  | `_isDisposed = true;`
| 0 | `80` |  | `}`
| 10 | `81` |  | `}`
|  | `82` |  | ``
|  | `83` |  | `/// <summary>`
|  | `84` |  | `/// Finalizes an instance of the <see cref="ED25519DigitalSignature"/> class.`
|  | `85` |  | `/// </summary>`
|  | `86` |  | `~ED25519DigitalSignature()`
| 20 | `87` |  | `{`
| 10 | `88` |  | `Dispose(disposing: false);`
| 20 | `89` |  | `}`
|  | `90` |  | `}`
|  | `91` |  | `}`

# Methods/Properties

.ctor(Renci.SshNet.Security.ED25519Key)
Verify(System.Byte[],System.Byte[])
Sign(System.Byte[])
Dispose()
Dispose(System.Boolean)
Finalize()