Extension

This interface represents an X.509 extension.

<p> Extensions provide a means of associating additional attributes with users or public keys and for managing a certification hierarchy. The extension format also allows communities to define private extensions to carry information unique to those communities.

<p> Each extension contains an object identifier, a criticality setting indicating whether it is a critical or a non-critical extension, and and an ASN.1 DER-encoded value. Its ASN.1 definition is:

<pre>

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 }

</pre>

<p> This interface is designed to provide access to a single extension, unlike {@link java.security.cert.X509Extension} which is more suitable for accessing a set of extensions.

@since 1.7

interface Extension {

string getId();

bool isCritical();

byte[] getValue();

void encode(OutputStream stream);

}

Members

Functions

encode void encode(OutputStream stream): Generates the extension's DER encoding and writes it to the output stream.
getId string getId(): Gets the extensions's object identifier.
getValue byte[] getValue(): Gets the extensions's DER-encoded value. Note, this is the bytes that are encoded as an OCTET STRING. It does not include the OCTET STRING tag and length.
isCritical bool isCritical(): Gets the extension's criticality setting.

Extension

Members

Functions

Meta

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