# HostKeyAttributes
<a name="API_HostKeyAttributes"></a>

Describes the public SSH host keys or the RDP certificate.

## Contents
<a name="API_HostKeyAttributes_Contents"></a>

 ** algorithm **   <a name="Lightsail-Type-HostKeyAttributes-algorithm"></a>
The SSH host key algorithm or the RDP certificate format.  
For SSH host keys, the algorithm may be `ssh-rsa`, `ecdsa-sha2-nistp256`, `ssh-ed25519`, etc. For RDP certificates, the algorithm is always `x509-cert`.  
Type: String  
Required: No

 ** fingerprintSHA1 **   <a name="Lightsail-Type-HostKeyAttributes-fingerprintSHA1"></a>
The SHA-1 fingerprint of the returned SSH host key or RDP certificate.  
+ Example of an SHA-1 SSH fingerprint:

   `SHA1:1CHH6FaAaXjtFOsR/t83vf91SR0` 
+ Example of an SHA-1 RDP fingerprint:

   `af:34:51:fe:09:f0:e0:da:b8:4e:56:ca:60:c2:10:ff:38:06:db:45` 
Type: String  
Required: No

 ** fingerprintSHA256 **   <a name="Lightsail-Type-HostKeyAttributes-fingerprintSHA256"></a>
The SHA-256 fingerprint of the returned SSH host key or RDP certificate.  
+ Example of an SHA-256 SSH fingerprint:

   `SHA256:KTsMnRBh1IhD17HpdfsbzeGA4jOijm5tyXsMjKVbB8o` 
+ Example of an SHA-256 RDP fingerprint:

   `03:9b:36:9f:4b:de:4e:61:70:fc:7c:c9:78:e7:d2:1a:1c:25:a8:0c:91:f6:7c:e4:d6:a0:85:c8:b4:53:99:68` 
Type: String  
Required: No

 ** notValidAfter **   <a name="Lightsail-Type-HostKeyAttributes-notValidAfter"></a>
The returned RDP certificate is not valid after this point in time.  
This value is listed only for RDP certificates.  
Type: Timestamp  
Required: No

 ** notValidBefore **   <a name="Lightsail-Type-HostKeyAttributes-notValidBefore"></a>
The returned RDP certificate is valid after this point in time.  
This value is listed only for RDP certificates.  
Type: Timestamp  
Required: No

 ** publicKey **   <a name="Lightsail-Type-HostKeyAttributes-publicKey"></a>
The public SSH host key or the RDP certificate.  
Type: String  
Required: No

 ** witnessedAt **   <a name="Lightsail-Type-HostKeyAttributes-witnessedAt"></a>
The time that the SSH host key or RDP certificate was recorded by Lightsail.  
Type: Timestamp  
Required: No

## See Also
<a name="API_HostKeyAttributes_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/lightsail-2016-11-28/HostKeyAttributes) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/lightsail-2016-11-28/HostKeyAttributes) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/lightsail-2016-11-28/HostKeyAttributes)