Class C509AlgorithmIdentifier

java.lang.Object
org.bouncycastle.cbor.c509.C509AlgorithmIdentifier
public class C509AlgorithmIdentifier extends Object
A C509 AlgorithmIdentifier, either a registered CBOR int or an unwrapped CBOR OID (RFC 9090) optionally followed by the DER-encoded parameters as a CBOR byte string (Sections 3.1.3 and 3.1.7 of draft-ietf-cose-cbor-encoded-cert-20): 
AlgorithmIdentifier = int / ~oid / [ algorithm: ~oid, parameters: bytes ]
The meaning of a registered int depends on which registry the field draws from (signature algorithms, Section 8.14, or public key algorithms, Section 8.15), so instances are created through the registry-specific factory methods, and every instance carries its resolved X.509 AlgorithmIdentifier.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals(Object o)
     
    static C509AlgorithmIdentifier
    forPublicKeyAlgorithm(org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithm)
    Build the C509 form of a subject public key AlgorithmIdentifier, using the registered int where the C509 Public Key Algorithms Registry (Section 8.15) has an entry for it, and the unwrapped CBOR OID form otherwise.
    static C509AlgorithmIdentifier
    forSignatureAlgorithm(org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithm)
    Build the C509 form of a signature AlgorithmIdentifier, using the registered int where the C509 Signature Algorithms Registry (Section 8.14) has an entry for it, and the unwrapped CBOR OID form otherwise.
    Integer
    getRegistryValue()
    Return the registry value for the algorithm this identifier resolves to, whether it is carried as an int or as an OID whose AlgorithmIdentifier matches a registry entry, or null when the algorithm is not registered.
    int
    hashCode()
     
    boolean
    isRegisteredValue()
    Return true if this identifier is carried as a registered CBOR int on the wire.
    org.bouncycastle.asn1.x509.AlgorithmIdentifier
    toX509AlgorithmIdentifier()
    Return the X.509 AlgorithmIdentifier this identifier stands for.

    Methods inherited from class Object

    clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

  • Method Details

    • forSignatureAlgorithm

      public static C509AlgorithmIdentifier forSignatureAlgorithm(org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithm)
      Build the C509 form of a signature AlgorithmIdentifier, using the registered int where the C509 Signature Algorithms Registry (Section 8.14) has an entry for it, and the unwrapped CBOR OID form otherwise.

    • forPublicKeyAlgorithm

      public static C509AlgorithmIdentifier forPublicKeyAlgorithm(org.bouncycastle.asn1.x509.AlgorithmIdentifier algorithm)
      Build the C509 form of a subject public key AlgorithmIdentifier, using the registered int where the C509 Public Key Algorithms Registry (Section 8.15) has an entry for it, and the unwrapped CBOR OID form otherwise.

    • isRegisteredValue

      public boolean isRegisteredValue()
      Return true if this identifier is carried as a registered CBOR int on the wire.

    • getRegistryValue

      public Integer getRegistryValue()
      Return the registry value for the algorithm this identifier resolves to, whether it is carried as an int or as an OID whose AlgorithmIdentifier matches a registry entry, or null when the algorithm is not registered.

    • toX509AlgorithmIdentifier

      public org.bouncycastle.asn1.x509.AlgorithmIdentifier toX509AlgorithmIdentifier()
      Return the X.509 AlgorithmIdentifier this identifier stands for.

    • equals

      public boolean equals(Object o)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object