Class PKCS12Attribute

• java.lang.Object
• • java.security.PKCS12Attribute

All Implemented Interfaces:

KeyStore.Entry.Attribute

public final class PKCS12Attribute
extends Object
implements KeyStore.Entry.Attribute

An attribute associated with a PKCS12 keystore entry. The attribute name is an ASN.1 Object Identifier and the attribute value is a set of ASN.1 types.

Since:

1.8

Constructors

PKCS12Attribute

public PKCS12Attribute(String name,
                       String value)

Parameters:

name - the attribute's identifier

value - the attribute's value

Throws:

NullPointerException - if name or value is null

IllegalArgumentException - if name or value is incorrectly formatted

PKCS12Attribute

public PKCS12Attribute(byte[] encoded)

Constructs a PKCS12 attribute from its ASN.1 DER encoding. The DER encoding is specified by the following ASN.1 definition:

Attribute ::= SEQUENCE {
     type   AttributeType,
     values SET OF AttributeValue
 }
 AttributeType ::= OBJECT IDENTIFIER
 AttributeValue ::= ANY defined by type

Parameters:

encoded - the attribute's ASN.1 DER encoding. It is cloned to prevent subsequent modificaion.

Throws:

NullPointerException - if encoded is null

IllegalArgumentException - if encoded is incorrectly formatted

Methods

getName

public String getName()

Returns the attribute's ASN.1 Object Identifier represented as a list of dot-separated integers.

Specified by:

getName in interface KeyStore.Entry.Attribute

Returns:

the attribute's identifier

getValue

public String getValue()

Returns the attribute's ASN.1 DER-encoded value as a string. An ASN.1 DER-encoded value is returned in one of the following String formats:

• the DER encoding of a basic ASN.1 type that has a natural string representation is returned as the string itself. Such types are currently limited to BOOLEAN, INTEGER, OBJECT IDENTIFIER, UTCTime, GeneralizedTime and the following six ASN.1 string types: UTF8String, PrintableString, T61String, IA5String, BMPString and GeneralString.
• the DER encoding of any other ASN.1 type is not decoded but returned as a binary string of colon-separated pairs of hexadecimal digits.

Multi-valued attributes are represented as a comma-separated list of values, enclosed in square brackets. See Arrays.toString(java.lang.Object[]).

Specified by:

getValue in interface KeyStore.Entry.Attribute

Returns:

the attribute value's string encoding

getEncoded

public byte[] getEncoded()

Returns the attribute's ASN.1 DER encoding.

Returns:

a clone of the attribute's DER encoding

equals

public boolean equals(Object obj)

Compares this PKCS12Attribute and a specified object for equality.

Overrides:

equals in class Object

Parameters:

obj - the comparison object

Returns:

true if obj is a PKCS12Attribute and their DER encodings are equal.

See Also:

Object.hashCode(), HashMap

hashCode

public int hashCode()

Returns the hashcode for this PKCS12Attribute. The hash code is computed from its DER encoding.

Overrides:

hashCode in class Object

Returns:

the hash code

See Also:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

toString

public String toString()

Returns a string representation of this PKCS12Attribute.

Overrides:

toString in class Object

Returns:

a name/value pair separated by an 'equals' symbol