# < Summary

Information

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

Line coverage
93%

Covered lines: | 31
Uncovered lines: | 2
Coverable lines: | 33
Total lines: | 96
Line coverage: | 93.9%

Branch coverage
75%

Covered branches: | 6
Total branches: | 8
Branch coverage: | 75%

Method coverage

Feature is only available for sponsors

Upgrade to PRO version

# Metrics

Method | Branch coverage | Cyclomatic complexity | Line coverage
--- | --- | --- | ---
.ctor(...) | 100% | 1 | 100%
.ctor(...) | 50% | 2 | 100%
Hash(...) | 100% | 1 | 100%
Dispose() | 100% | 1 | 100%
Dispose(...) | 83.33% | 6 | 86.66%
Finalize() | 100% | 1 | 100%

# File(s)

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

| # | Line |  | Line coverage
--- | --- | --- | --- | ---
|  | `1` |  | `using System;`
|  | `2` |  | `using System.Security.Cryptography;`
|  | `3` |  | `using Renci.SshNet.Common;`
|  | `4` |  | `using Renci.SshNet.Security.Cryptography.Ciphers;`
|  | `5` |  | ``
|  | `6` |  | `namespace Renci.SshNet.Security.Cryptography`
|  | `7` |  | `{`
|  | `8` |  | `/// <summary>`
|  | `9` |  | `/// Implements RSA digital signature algorithm.`
|  | `10` |  | `/// </summary>`
|  | `11` |  | `public class RsaDigitalSignature : CipherDigitalSignature, IDisposable`
|  | `12` |  | `{`
|  | `13` |  | `private HashAlgorithm _hash;`
|  | `14` |  | ``
|  | `15` |  | `/// <summary>`
|  | `16` |  | `/// Initializes a new instance of the <see cref="RsaDigitalSignature"/> class with the SHA-1 hash algorithm.`
|  | `17` |  | `/// </summary>`
|  | `18` |  | `/// <param name="rsaKey">The RSA key.</param>`
|  | `19` |  | `public RsaDigitalSignature(RsaKey rsaKey)`
| 523 | `20` |  | `: this(rsaKey, HashAlgorithmName.SHA1)`
| 523 | `21` |  | `{`
| 523 | `22` |  | `}`
|  | `23` |  | ``
|  | `24` |  | `/// <summary>`
|  | `25` |  | `/// Initializes a new instance of the <see cref="RsaDigitalSignature"/> class.`
|  | `26` |  | `/// </summary>`
|  | `27` |  | `/// <param name="rsaKey">The RSA key.</param>`
|  | `28` |  | `/// <param name="hashAlgorithmName">The hash algorithm to use in the digital signature.</param>`
|  | `29` |  | `public RsaDigitalSignature(RsaKey rsaKey, HashAlgorithmName hashAlgorithmName)`
| 2771 | `30` |  | `: base(ObjectIdentifier.FromHashAlgorithmName(hashAlgorithmName), new RsaCipher(rsaKey))`
| 2768 | `31` |  | `{`
| 2768 | `32` |  | `_hash = CryptoConfig.CreateFromName(hashAlgorithmName.Name) as HashAlgorithm`
| 2768 | `33` |  | `?? throw new ArgumentException($"Could not create {nameof(HashAlgorithm)} from `{hashAlgorithmName}`.",`
| 2768 | `34` |  | `}`
|  | `35` |  | ``
|  | `36` |  | `/// <summary>`
|  | `37` |  | `/// Hashes the specified input.`
|  | `38` |  | `/// </summary>`
|  | `39` |  | `/// <param name="input">The input.</param>`
|  | `40` |  | `/// <returns>`
|  | `41` |  | `/// Hashed data.`
|  | `42` |  | `/// </returns>`
|  | `43` |  | `protected override byte[] Hash(byte[] input)`
| 1906 | `44` |  | `{`
| 1906 | `45` |  | `return _hash.ComputeHash(input);`
| 1906 | `46` |  | `}`
|  | `47` |  | ``
|  | `48` |  | `#region IDisposable Members`
|  | `49` |  | ``
|  | `50` |  | `private bool _isDisposed;`
|  | `51` |  | ``
|  | `52` |  | `/// <summary>`
|  | `53` |  | `/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.`
|  | `54` |  | `/// </summary>`
|  | `55` |  | `public void Dispose()`
| 3 | `56` |  | `{`
| 3 | `57` |  | `Dispose(disposing: true);`
| 3 | `58` |  | `GC.SuppressFinalize(this);`
| 3 | `59` |  | `}`
|  | `60` |  | ``
|  | `61` |  | `/// <summary>`
|  | `62` |  | `/// Releases unmanaged and - optionally - managed resources.`
|  | `63` |  | `/// </summary>`
|  | `64` |  | `/// <param name="disposing"><see langword="true"/> to release both managed and unmanaged resources; <see langwor`
|  | `65` |  | `protected virtual void Dispose(bool disposing)`
| 2770 | `66` |  | `{`
| 2770 | `67` |  | `if (_isDisposed)`
| 0 | `68` |  | `{`
| 0 | `69` |  | `return;`
|  | `70` |  | `}`
|  | `71` |  | ``
| 2770 | `72` |  | `if (disposing)`
| 3 | `73` |  | `{`
| 3 | `74` |  | `var hash = _hash;`
| 3 | `75` |  | `if (hash != null)`
| 3 | `76` |  | `{`
| 3 | `77` |  | `hash.Dispose();`
| 3 | `78` |  | `_hash = null;`
| 3 | `79` |  | `}`
|  | `80` |  | ``
| 3 | `81` |  | `_isDisposed = true;`
| 3 | `82` |  | `}`
| 2770 | `83` |  | `}`
|  | `84` |  | ``
|  | `85` |  | `/// <summary>`
|  | `86` |  | `/// Releases unmanaged resources and performs other cleanup operations before the`
|  | `87` |  | `/// <see cref="RsaDigitalSignature"/> is reclaimed by garbage collection.`
|  | `88` |  | `/// </summary>`
|  | `89` |  | `~RsaDigitalSignature()`
| 5534 | `90` |  | `{`
| 2767 | `91` |  | `Dispose(disposing: false);`
| 5534 | `92` |  | `}`
|  | `93` |  | ``
|  | `94` |  | `#endregion`
|  | `95` |  | `}`
|  | `96` |  | `}`

# Methods/Properties

.ctor(Renci.SshNet.Security.RsaKey)
.ctor(Renci.SshNet.Security.RsaKey,System.Security.Cryptography.HashAlgorithmName)
Hash(System.Byte[])
Dispose()
Dispose(System.Boolean)
Finalize()