AWS SDK Version 3 for .NET
API Reference

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Contains configuration information for a certificate revocation list (CRL). Your private certificate authority (CA) creates base CRLs. Delta CRLs are not supported. You can enable CRLs for your new or an existing private CA by setting the Enabled parameter to true. Your private CA writes CRLs to an S3 bucket that you specify in the S3BucketName parameter. You can hide the name of your bucket by specifying a value for the CustomCname parameter. Your private CA copies the CNAME or the S3 bucket name to the CRL Distribution Points extension of each certificate it issues. Your S3 bucket policy must give write permission to ACM Private CA.

Your private CA uses the value in the ExpirationInDays parameter to calculate the nextUpdate field in the CRL. The CRL is refreshed at 1/2 the age of next update or when a certificate is revoked. When a certificate is revoked, it is recorded in the next CRL that is generated and in the next audit report. Only time valid certificates are listed in the CRL. Expired certificates are not included.

CRLs contain the following fields:

Certificate revocation lists created by ACM Private CA are DER-encoded. You can use the following OpenSSL command to list a CRL.

openssl crl -inform DER -text -in crl_path -noout

Inheritance Hierarchy


Namespace: Amazon.ACMPCA.Model
Assembly: AWSSDK.ACMPCA.dll
Version: 3.x.y.z


public class CrlConfiguration

The CrlConfiguration type exposes the following members


Public Method CrlConfiguration()


Public Property CustomCname System.String

Gets and sets the property CustomCname.

Name inserted into the certificate CRL Distribution Points extension that enables the use of an alias for the CRL distribution point. Use this value if you don't want the name of your S3 bucket to be public.

Public Property Enabled System.Boolean

Gets and sets the property Enabled.

Boolean value that specifies whether certificate revocation lists (CRLs) are enabled. You can use this value to enable certificate revocation for a new CA when you call the CreateCertificateAuthority action or for an existing CA when you call the UpdateCertificateAuthority action.

Public Property ExpirationInDays System.Int32

Gets and sets the property ExpirationInDays.

Number of days until a certificate expires.

Public Property S3BucketName System.String

Gets and sets the property S3BucketName.

Name of the S3 bucket that contains the CRL. If you do not provide a value for the CustomCname argument, the name of your S3 bucket is placed into the CRL Distribution Points extension of the issued certificate. You can change the name of your bucket by calling the UpdateCertificateAuthority action. You must specify a bucket policy that allows ACM Private CA to write the CRL to your bucket.

Version Information

.NET Standard:
Supported in: 1.3

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms