IX509Extension Interface

Definition

[Android.Runtime.Register("java/security/cert/X509Extension", "", "Java.Security.Cert.IX509ExtensionInvoker")]
public interface IX509Extension : Android.Runtime.IJavaObject, IDisposable, Java.Interop.IJavaPeerable

[<Android.Runtime.Register("java/security/cert/X509Extension", "", "Java.Security.Cert.IX509ExtensionInvoker")>]
type IX509Extension = interface
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable

Derived

Java.Security.Cert.X509Certificate

Java.Security.Cert.X509CRL

Java.Security.Cert.X509CRLEntry

Attributes

RegisterAttribute

Implements

IJavaObject IJavaPeerable IDisposable

Remarks

Interface for an X.509 extension.

The extensions defined for X.509 v3 X509Certificate Certificates and v2 X509CRL CRLs (Certificate Revocation Lists) provide methods for associating additional attributes with users or public keys, for managing the certification hierarchy, and for managing CRL distribution. The X.509 extensions format also allows communities to define private extensions to carry information unique to those communities.

Each extension in a certificate/CRL may be designated as critical or non-critical. A certificate/CRL-using system (an application validating a certificate/CRL) must reject the certificate/CRL if it encounters a critical extension it does not recognize. A non-critical extension may be ignored if it is not recognized.

The ASN.1 definition for this is:

Extensions  ::=  SEQUENCE SIZE (1..MAX) OF Extension

            Extension  ::=  SEQUENCE  {
                extnId        OBJECT IDENTIFIER,
                critical      BOOLEAN DEFAULT FALSE,
                extnValue     OCTET STRING
                              -- contains a DER encoding of a value
                              -- of the type registered for use with
                              -- the extnId object identifier value
            }

Since not all extensions are known, the getExtensionValue method returns the DER-encoded OCTET STRING of the extension value (i.e., the extnValue). This can then be handled by a <em>Class</em> that understands the extension.

Added in 1.2.

Java documentation for java.security.cert.X509Extension.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Properties

Methods

Extension Methods

Applies to