# PublicKeyConfig
<a name="API_PublicKeyConfig"></a>

Configuration information about a public key that you can use with [signed URLs and signed cookies](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/PrivateContent.html), or with [field-level encryption](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/field-level-encryption.html).

CloudFront supports signed URLs and signed cookies with RSA 2048 or ECDSA 256 key signatures. Field-level encryption is only compatible with RSA 2048 key signatures.

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

 ** CallerReference **   <a name="cloudfront-Type-PublicKeyConfig-CallerReference"></a>
A string included in the request to help make sure that the request can't be replayed.  
Type: String  
Required: Yes

 ** EncodedKey **   <a name="cloudfront-Type-PublicKeyConfig-EncodedKey"></a>
The public key that you can use with [signed URLs and signed cookies](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/PrivateContent.html), or with [field-level encryption](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/field-level-encryption.html).  
Type: String  
Required: Yes

 ** Name **   <a name="cloudfront-Type-PublicKeyConfig-Name"></a>
A name to help identify the public key.  
Type: String  
Required: Yes

 ** Comment **   <a name="cloudfront-Type-PublicKeyConfig-Comment"></a>
A comment to describe the public key. The comment cannot be longer than 128 characters.  
Type: String  
Required: No

## See Also
<a name="API_PublicKeyConfig_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/cloudfront-2020-05-31/PublicKeyConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudfront-2020-05-31/PublicKeyConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudfront-2020-05-31/PublicKeyConfig)