Package org.bouncycastle.asn1.x509

Class KeyUsage

  • All Implemented Interfaces:
    ASN1Encodable, Encodable
    public class KeyUsage
extends ASN1Object
    The KeyUsage object. 
        id-ce-keyUsage OBJECT IDENTIFIER ::=  { id-ce 15 }

    KeyUsage ::= BIT STRING {
         digitalSignature        (0),
         nonRepudiation          (1),
         keyEncipherment         (2),
         dataEncipherment        (3),
         keyAgreement            (4),
         keyCertSign             (5),
         cRLSign                 (6),
         encipherOnly            (7),
         decipherOnly            (8) }

    • Constructor Detail

      • KeyUsage

        public KeyUsage​(int usage)
        Basic constructor.
        Parameters:
        usage - - the bitwise OR of the Key Usage flags giving the allowed uses for the key. e.g. (KeyUsage.keyEncipherment | KeyUsage.dataEncipherment)

    • Method Detail

      • hasUsages

        public boolean hasUsages​(int usages)
        Return true if a given usage bit is set, false otherwise.
        Parameters:
        usages - combination of usage flags.
        Returns:
        true if all bits are set, false otherwise.

      • getBytes

        public byte[] getBytes()

      • getPadBits

        public int getPadBits()

      • toString

        public String toString()
        Description copied from class: Object
        Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression: 
           getClass().getName() + '@' + Integer.toHexString(hashCode())

        See Writing a useful toString method if you intend implementing your own toString method.

        Overrides:
        toString in class Object
        Returns:
        a printable representation of this object.