# < Summary

Information

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

Line coverage
95%

Covered lines: | 43
Uncovered lines: | 2
Coverable lines: | 45
Total lines: | 129
Line coverage: | 95.5%

Branch coverage
50%

Covered branches: | 1
Total branches: | 2
Branch coverage: | 50%

Method coverage

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# Metrics

Method | Branch coverage | Cyclomatic complexity | Line coverage
--- | --- | --- | ---
get_CanTrust() | 100% | 1 | 100%
get_HostKey() | 100% | 1 | 100%
get_HostKeyName() | 100% | 1 | 100%
get_FingerPrint() | 100% | 1 | 100%
get_FingerPrintSHA256() | 100% | 1 | 100%
get_FingerPrintMD5() | 100% | 1 | 100%
get_KeyLength() | 100% | 1 | 100%
.ctor(...) | 50% | 2 | 89.47%

# File(s)

## \home\appveyor\projects\ssh-net\src\Renci.SshNet\Common\HostKeyEventArgs.cs

| # | Line |  | Line coverage
--- | --- | --- | --- | ---
|  | `1` |  | `using System;`
|  | `2` |  | ``
|  | `3` |  | `using Renci.SshNet.Abstractions;`
|  | `4` |  | `using Renci.SshNet.Security;`
|  | `5` |  | ``
|  | `6` |  | `namespace Renci.SshNet.Common`
|  | `7` |  | `{`
|  | `8` |  | `/// <summary>`
|  | `9` |  | `/// Provides data for the HostKeyReceived event.`
|  | `10` |  | `/// </summary>`
|  | `11` |  | `public class HostKeyEventArgs : EventArgs`
|  | `12` |  | `{`
|  | `13` |  | `private readonly Lazy<byte[]> _lazyFingerPrint;`
|  | `14` |  | `private readonly Lazy<string> _lazyFingerPrintSHA256;`
|  | `15` |  | `private readonly Lazy<string> _lazyFingerPrintMD5;`
|  | `16` |  | ``
|  | `17` |  | `/// <summary>`
|  | `18` |  | `/// Gets or sets a value indicating whether host key can be trusted.`
|  | `19` |  | `/// </summary>`
|  | `20` |  | `/// <value>`
|  | `21` |  | `/// <see langword="true"/> if host key can be trusted; otherwise, <see langword="false"/>.`
|  | `22` |  | `/// </value>`
| 2432 | `23` |  | `public bool CanTrust { get; set; }`
|  | `24` |  | ``
|  | `25` |  | `/// <summary>`
|  | `26` |  | `/// Gets the host key.`
|  | `27` |  | `/// </summary>`
| 1237 | `28` |  | `public byte[] HostKey { get; private set; }`
|  | `29` |  | ``
|  | `30` |  | `/// <summary>`
|  | `31` |  | `/// Gets the host key name.`
|  | `32` |  | `/// </summary>`
| 1228 | `33` |  | `public string HostKeyName { get; private set; }`
|  | `34` |  | ``
|  | `35` |  | `/// <summary>`
|  | `36` |  | `/// Gets the MD5 fingerprint.`
|  | `37` |  | `/// </summary>`
|  | `38` |  | `/// <value>`
|  | `39` |  | `/// MD5 fingerprint as byte array.`
|  | `40` |  | `/// </value>`
|  | `41` |  | `public byte[] FingerPrint`
|  | `42` |  | `{`
|  | `43` |  | `get`
| 29 | `44` |  | `{`
| 29 | `45` |  | `return _lazyFingerPrint.Value;`
| 29 | `46` |  | `}`
|  | `47` |  | `}`
|  | `48` |  | ``
|  | `49` |  | `/// <summary>`
|  | `50` |  | `/// Gets the SHA256 fingerprint of the host key in the same format as the ssh command,`
|  | `51` |  | `/// i.e. non-padded base64, but without the <c>SHA256:</c> prefix.`
|  | `52` |  | `/// </summary>`
|  | `53` |  | `/// <example><c>ohD8VZEXGWo6Ez8GSEJQ9WpafgLFsOfLOtGGQCQo6Og</c>.</example>`
|  | `54` |  | `/// <value>`
|  | `55` |  | `/// Base64 encoded SHA256 fingerprint with padding (equals sign) removed.`
|  | `56` |  | `/// </value>`
|  | `57` |  | `public string FingerPrintSHA256`
|  | `58` |  | `{`
|  | `59` |  | `get`
| 4 | `60` |  | `{`
| 4 | `61` |  | `return _lazyFingerPrintSHA256.Value;`
| 4 | `62` |  | `}`
|  | `63` |  | `}`
|  | `64` |  | ``
|  | `65` |  | `/// <summary>`
|  | `66` |  | `/// Gets the MD5 fingerprint of the host key in the same format as the ssh command,`
|  | `67` |  | `/// i.e. hexadecimal bytes separated by colons, but without the <c>MD5:</c> prefix.`
|  | `68` |  | `/// </summary>`
|  | `69` |  | `/// <example><c>97:70:33:82:fd:29:3a:73:39:af:6a:07:ad:f8:80:49</c>.</example>`
|  | `70` |  | `public string FingerPrintMD5`
|  | `71` |  | `{`
|  | `72` |  | `get`
| 4 | `73` |  | `{`
| 4 | `74` |  | `return _lazyFingerPrintMD5.Value;`
| 4 | `75` |  | `}`
|  | `76` |  | `}`
|  | `77` |  | ``
|  | `78` |  | `/// <summary>`
|  | `79` |  | `/// Gets the length of the key in bits.`
|  | `80` |  | `/// </summary>`
|  | `81` |  | `/// <value>`
|  | `82` |  | `/// The length of the key in bits.`
|  | `83` |  | `/// </value>`
| 1228 | `84` |  | `public int KeyLength { get; private set; }`
|  | `85` |  | ``
|  | `86` |  | `/// <summary>`
|  | `87` |  | `/// Initializes a new instance of the <see cref="HostKeyEventArgs"/> class.`
|  | `88` |  | `/// </summary>`
|  | `89` |  | `/// <param name="host">The host.</param>`
|  | `90` |  | `/// <exception cref="ArgumentNullException"><paramref name="host"/> is <see langword="null"/>.</exception>`
| 1220 | `91` |  | `public HostKeyEventArgs(KeyHostAlgorithm host)`
| 1220 | `92` |  | `{`
| 1220 | `93` |  | `if (host is null)`
| 0 | `94` |  | `{`
| 0 | `95` |  | `throw new ArgumentNullException(nameof(host));`
|  | `96` |  | `}`
|  | `97` |  | ``
| 1220 | `98` |  | `CanTrust = true;`
| 1220 | `99` |  | `HostKey = host.Data;`
| 1220 | `100` |  | `HostKeyName = host.Name;`
| 1220 | `101` |  | `KeyLength = host.Key.KeyLength;`
|  | `102` |  | ``
| 1220 | `103` |  | `_lazyFingerPrint = new Lazy<byte[]>(() =>`
| 10 | `104` |  | `{`
| 10 | `105` |  | `using var md5 = CryptoAbstraction.CreateMD5();`
| 10 | `106` |  | `return md5.ComputeHash(HostKey);`
| 1230 | `107` |  | `});`
|  | `108` |  | ``
| 1220 | `109` |  | `_lazyFingerPrintSHA256 = new Lazy<string>(() =>`
| 4 | `110` |  | `{`
| 4 | `111` |  | `using var sha256 = CryptoAbstraction.CreateSHA256();`
| 1220 | `112` |  | ``
| 4 | `113` |  | `return Convert.ToBase64String(sha256.ComputeHash(HostKey))`
| 4 | `114` |  | `#if NET || NETSTANDARD2_1_OR_GREATER`
| 4 | `115` |  | `.Replace("=", string.Empty, StringComparison.Ordinal);`
| 1214 | `116` |  | `#else`
| 1214 | `117` |  | `.Replace("=", string.Empty);`
| 1220 | `118` |  | `#endif // NET || NETSTANDARD2_1_OR_GREATER`
| 1224 | `119` |  | `});`
|  | `120` |  | ``
| 1220 | `121` |  | `_lazyFingerPrintMD5 = new Lazy<string>(() =>`
| 4 | `122` |  | `{`
| 1220 | `123` |  | `#pragma warning disable CA1308 // Normalize strings to uppercase`
| 4 | `124` |  | `return BitConverter.ToString(FingerPrint).Replace('-', ':').ToLowerInvariant();`
| 1220 | `125` |  | `#pragma warning restore CA1308 // Normalize strings to uppercase`
| 1224 | `126` |  | `});`
| 1220 | `127` |  | `}`
|  | `128` |  | `}`
|  | `129` |  | `}`

# Methods/Properties

get_CanTrust()
get_HostKey()
get_HostKeyName()
get_FingerPrint()
get_FingerPrintSHA256()
get_FingerPrintMD5()
get_KeyLength()
.ctor(Renci.SshNet.Security.KeyHostAlgorithm)