Package org.bouncycastle.asn1.cms

Class KeyAgreeRecipientInfo

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.cms.KeyAgreeRecipientInfo

All Implemented Interfaces:

org.bouncycastle.asn1.ASN1Encodable, org.bouncycastle.util.Encodable

public class KeyAgreeRecipientInfo
extends org.bouncycastle.asn1.ASN1Object

RFC 5652: Content encryption key delivery mechanisms.

 KeyAgreeRecipientInfo ::= SEQUENCE {
     version CMSVersion,  -- always set to 3
     originator [0] EXPLICIT OriginatorIdentifierOrKey,
     ukm [1] EXPLICIT UserKeyingMaterial OPTIONAL,
     keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier,
     recipientEncryptedKeys RecipientEncryptedKeys 
 }

 UserKeyingMaterial ::= OCTET STRING
 

Constructor Summary

Constructors

Constructor	Description
KeyAgreeRecipientInfo(OriginatorIdentifierOrKey originator, org.bouncycastle.asn1.ASN1OctetString ukm, org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncryptionAlgorithm, org.bouncycastle.asn1.ASN1Sequence recipientEncryptedKeys)

Method Summary

Modifier and Type	Method	Description
static KeyAgreeRecipientInfo	getInstance(Object obj)	Return a KeyAgreeRecipientInfo object from the given object.
static KeyAgreeRecipientInfo	getInstance(org.bouncycastle.asn1.ASN1TaggedObject obj, boolean explicit)	Return a KeyAgreeRecipientInfo object from a tagged object.
org.bouncycastle.asn1.x509.AlgorithmIdentifier	getKeyEncryptionAlgorithm()
OriginatorIdentifierOrKey	getOriginator()
org.bouncycastle.asn1.ASN1Sequence	getRecipientEncryptedKeys()
org.bouncycastle.asn1.ASN1OctetString	getUserKeyingMaterial()
org.bouncycastle.asn1.ASN1Integer	getVersion()
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

KeyAgreeRecipientInfo

public KeyAgreeRecipientInfo(OriginatorIdentifierOrKey originator,
 org.bouncycastle.asn1.ASN1OctetString ukm,
 org.bouncycastle.asn1.x509.AlgorithmIdentifier keyEncryptionAlgorithm,
 org.bouncycastle.asn1.ASN1Sequence recipientEncryptedKeys)

Method Details

getInstance

public static KeyAgreeRecipientInfo getInstance(org.bouncycastle.asn1.ASN1TaggedObject obj,
 boolean explicit)

Return a KeyAgreeRecipientInfo object from a tagged object.

Parameters:

obj - the tagged object holding the object we want.

explicit - true if the object is meant to be explicitly tagged false otherwise.

Throws:

IllegalArgumentException - if the object held by the tagged object cannot be converted.

getInstance

public static KeyAgreeRecipientInfo getInstance(Object obj)

Return a KeyAgreeRecipientInfo object from the given object.

Accepted inputs:

• null → null
• KeyAgreeRecipientInfo object
• ASN1Sequence input formats with KeyAgreeRecipientInfo structure inside

Parameters:

obj - the object we want converted.

Throws:

IllegalArgumentException - if the object cannot be converted.

getVersion

public org.bouncycastle.asn1.ASN1Integer getVersion()

getOriginator

public OriginatorIdentifierOrKey getOriginator()

getUserKeyingMaterial

public org.bouncycastle.asn1.ASN1OctetString getUserKeyingMaterial()

getKeyEncryptionAlgorithm

public org.bouncycastle.asn1.x509.AlgorithmIdentifier getKeyEncryptionAlgorithm()

getRecipientEncryptedKeys

public org.bouncycastle.asn1.ASN1Sequence getRecipientEncryptedKeys()

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