Package org.bouncycastle.asn1.cms

Class Attribute

java.lang.Object
org.bouncycastle.asn1.ASN1Object
org.bouncycastle.asn1.cms.Attribute
All Implemented Interfaces:
org.bouncycastle.asn1.ASN1Encodable, org.bouncycastle.util.Encodable
Direct Known Subclasses:
SMIMECapabilitiesAttribute, SMIMEEncryptionKeyPreferenceAttribute
public class Attribute extends org.bouncycastle.asn1.ASN1Object
RFC 5652: Attribute is a pair of OID (as type identifier) + set of values. 

 Attribute ::= SEQUENCE {
     attrType OBJECT IDENTIFIER,
     attrValues SET OF AttributeValue
 }
 
 AttributeValue ::= ANY

General rule on values is that same AttributeValue must not be included multiple times into the set. That is, if the value is a SET OF INTEGERs, then having same value repeated is wrong: (1, 1), but different values is OK: (1, 2). Normally the AttributeValue syntaxes are more complicated than that.

General rule of Attribute usage is that the Attributes containers must not have multiple Attribute:s with same attrType (OID) there.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Attribute(org.bouncycastle.asn1.ASN1ObjectIdentifier attrType, org.bouncycastle.asn1.ASN1Set attrValues)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    org.bouncycastle.asn1.ASN1Encodable[]
    getAttributeValues()
     
    org.bouncycastle.asn1.ASN1ObjectIdentifier
    getAttrType()
     
    org.bouncycastle.asn1.ASN1Set
    getAttrValues()
     
    static Attribute
    getInstance(Object o)
    Return an Attribute object from the given object.
    org.bouncycastle.asn1.ASN1Primitive
    toASN1Primitive()
    Produce an object suitable for an ASN1OutputStream.

    Methods inherited from class org.bouncycastle.asn1.ASN1Object

    encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Attribute

      public Attribute(org.bouncycastle.asn1.ASN1ObjectIdentifier attrType, org.bouncycastle.asn1.ASN1Set attrValues)

  • Method Details

    • getInstance

      public static Attribute getInstance(Object o)
      Return an Attribute object from the given object.

      Accepted inputs:

      • null → null
      • Attribute object
      • ASN1Sequence input formats with Attribute structure inside
      Parameters:
      o - the object we want converted.
      Throws:
      IllegalArgumentException - if the object cannot be converted.

    • getAttrType

      public org.bouncycastle.asn1.ASN1ObjectIdentifier getAttrType()

    • getAttrValues

      public org.bouncycastle.asn1.ASN1Set getAttrValues()

    • getAttributeValues

      public org.bouncycastle.asn1.ASN1Encodable[] getAttributeValues()

    • toASN1Primitive

      public org.bouncycastle.asn1.ASN1Primitive toASN1Primitive()
      Produce an object suitable for an ASN1OutputStream.
      Specified by:
      toASN1Primitive in interface org.bouncycastle.asn1.ASN1Encodable
      Specified by:
      toASN1Primitive in class org.bouncycastle.asn1.ASN1Object