KEKIdentifier ("Entrust Authority Security Toolkit for the Java Platform")

java.lang.Object
- iaik.cms.KEKIdentifier

All Implemented Interfaces:

ASN1Type, KeyIdentifier
```
public class KEKIdentifier
extends java.lang.Object
implements KeyIdentifier
```
The CMS type KEKIdentifier.
The KEKIdentifier type is used for identifying a symmetric key-encryption key previously distributed to the sender and one or more recipients. The symmetric key-encryption key is identified by an OCTET STRING key id and optional date (for identifiying a single key-encryption key from a set of previously distrbuted keys) and optional other key material; see CMS Cryptographic Message Syntax (RFC 2630):
```
 KEKIdentifier ::= SEQUENCE {   
   keyIdentifier OCTET STRING,
   date GeneralizedTime OPTIONAL,
   other OtherKeyAttribute OPTIONAL }
 
```
The use of OtherKeyAttribute should be avoided because of interoperability reasons.

Field Summary
- Fields inherited from interface iaik.cms.KeyIdentifier
  ISSUER_AND_SERIALNUMBER, KEK_IDENTIFIER, ORIGINATOR_PUBLIC_KEY, RECIPIENT_KEY_IDENTIFIER, SUBJECT_KEY_IDENTIFIER

Constructor Summary

Constructors
Constructor and Description
`KEKIdentifier()` Empty default constructor.
`KEKIdentifier(ASN1Object obj)` Creates a KEKIdentifier from an ASN1Object.
`KEKIdentifier(byte[] keyIdentifier)` Creates a KEKIdentifier from the given keyIdentifier.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`decode(ASN1Object obj)` Decodes the KEKIdentifier from the given ASN1Object.
`boolean`	`equals(java.lang.Object obj)` Compares this `KEKIdentifier` to the specified object.
`java.util.Date`	`getDate()` Gets the optional Date value.
`byte[]`	`getKeyIdentifier()` Gets the key identifier.
`int`	`getKeyIdType()` Returns the key identifier type this class represents.
`java.lang.String`	`getKeyIdTypeName()` Returns the key identifier type this class represents as string.
`OtherKeyAttribute`	`getOtherKeyAttribute()` Gets the optional OtherKeyAttribute component value.
`boolean`	`hasDate(java.util.Date date)` Checks if this KEKIdentifier holds the given Date.
`int`	`hashCode()` Returns a hashcode for this `KEKIdentifier`.
`boolean`	`hasKeyIdentifier(byte[] keyIdentifier)` Checks if this KEKIdentifier holds the given key identifier.
`boolean`	`hasOtherKeyAttribute(OtherKeyAttribute otherKeyAttribute)` Checks if this KEKIdentifier holds the given OtherKeyAttribute.
`void`	`setDate(java.util.Date date)` Sets the optional Date component.
`void`	`setOtherKeyAttribute(OtherKeyAttribute other)` Sets the optional OtherKeyAttribute component.
`ASN1Object`	`toASN1Object()` Returns this KEKIdentifier as ASN1Object.
`java.lang.String`	`toString()` Returns a String representation of this KEKIdentifier.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - KEKIdentifier
```
public KEKIdentifier()
```
    Empty default constructor.
    Used for dynamic object creation only. Shall be not used by an application.
  - KEKIdentifier
```
public KEKIdentifier(byte[] keyIdentifier)
```
    Creates a KEKIdentifier from the given keyIdentifier.
    
    Parameters:
    
    keyIdentifier - the key identifier as byte array
  - KEKIdentifier
```
public KEKIdentifier(ASN1Object obj)
              throws CodingException
```
    Creates a KEKIdentifier from an ASN1Object.
    
    Parameters:
    
    obj - the KEKIdentifier as ASN1Object
    
    Throws:
    
    CodingException - if the ASN1Object cannot be decoded or is invalid structured
- Method Detail
  - setDate
```
public void setDate(java.util.Date date)
```
    Sets the optional Date component.
    
    Parameters:
    
    date - the Date optionally identifying a key-encryption key from a set of previously distributed keys
  - setOtherKeyAttribute
```
public void setOtherKeyAttribute(OtherKeyAttribute other)
```
    Sets the optional OtherKeyAttribute component.
    
    Parameters:
    
    other - additional information for identifying the key
  - getDate
```
public java.util.Date getDate()
```
    Gets the optional Date value.
    
    Returns:
    
    the Date optionally identifying a key-encryption key from a set of previously distributed keys
  - getOtherKeyAttribute
```
public OtherKeyAttribute getOtherKeyAttribute()
```
    Gets the optional OtherKeyAttribute component value.
    
    Returns:
    
    other additional information for identifying the key
  - getKeyIdentifier
```
public byte[] getKeyIdentifier()
```
    Gets the key identifier.
    
    Returns:
    
    the key identifier.
  - decode
```
public void decode(ASN1Object obj)
            throws CodingException
```
    Decodes the KEKIdentifier from the given ASN1Object.
    
    Specified by:
    
    decode in interface ASN1Type
    
    Parameters:
    
    obj - the KEKIdentifier as ASN1Object
    
    Throws:
    
    CodingException - if the ASN1Object cannot be decoded or is invalid structured
  - toASN1Object
```
public ASN1Object toASN1Object()
```
    Returns this KEKIdentifier as ASN1Object.
    
    Specified by:
    
    toASN1Object in interface ASN1Type
    
    Returns:
    
    this KEKIdentifier as ASN1Object
  - hasKeyIdentifier
```
public boolean hasKeyIdentifier(byte[] keyIdentifier)
```
    Checks if this KEKIdentifier holds the given key identifier.
    
    Returns:
    
    true if the key identifier value of this KEKIdentifier is equal to the supplied keyIdentifer, false otherwise
  - hasDate
```
public boolean hasDate(java.util.Date date)
```
    Checks if this KEKIdentifier holds the given Date.
    
    Returns:
    
    true if the Date component of this KEKIdentifier is equal to the supplied Date, false otherwise
  - hasOtherKeyAttribute
```
public boolean hasOtherKeyAttribute(OtherKeyAttribute otherKeyAttribute)
```
    Checks if this KEKIdentifier holds the given OtherKeyAttribute.
    
    Returns:
    
    true if the OtherKeyAttribute component of this KEKIdentifier is equal to the supplied OtherKeyAttribute, false otherwise
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Compares this KEKIdentifier to the specified object.
    
    Specified by:
    
    equals in interface KeyIdentifier
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    obj - the object to compare this KEKIdentifier against.
    
    Returns:
    
    true, if the given object is equal to this KEKIdentifier, false otherwise
  - hashCode
```
public int hashCode()
```
    Returns a hashcode for this KEKIdentifier.
    
    Specified by:
    
    hashCode in interface KeyIdentifier
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    a hashcode for this KEKIdentifier
  - getKeyIdType
```
public int getKeyIdType()
```
    Returns the key identifier type this class represents.
    
    Specified by:
    
    getKeyIdType in interface KeyIdentifier
    
    Returns:
    
    the key id type KEK_IDENTIFIER (3)
  - getKeyIdTypeName
```
public java.lang.String getKeyIdTypeName()
```
    Returns the key identifier type this class represents as string.
    
    Specified by:
    
    getKeyIdTypeName in interface KeyIdentifier
    
    Returns:
    
    "KEKIdentifier"
  - toString
```
public java.lang.String toString()
```
    Returns a String representation of this KEKIdentifier.
    
    Specified by:
    
    toString in interface KeyIdentifier
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    a String representation of this KEKIdentifer

Class KEKIdentifier

Field Summary

Fields inherited from interface iaik.cms.KeyIdentifier

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

KEKIdentifier

KEKIdentifier

KEKIdentifier

Method Detail

setDate

setOtherKeyAttribute

getDate

getOtherKeyAttribute

getKeyIdentifier

decode

toASN1Object

hasKeyIdentifier

hasDate

hasOtherKeyAttribute

equals

hashCode

getKeyIdType

getKeyIdTypeName

toString