Module iu.util.crypt.impl

Package iu.crypt

Class JweRecipientBuilder.EncryptedKeyBuilder

java.lang.Object

edu.iu.client.IuJsonBuilder<JweRecipientBuilder.EncryptedKeyBuilder>

iu.crypt.CertificateReferenceBuilder<JweRecipientBuilder.EncryptedKeyBuilder>

iu.crypt.KeyReferenceBuilder<JweRecipientBuilder.EncryptedKeyBuilder>

iu.crypt.JoseBuilder<JweRecipientBuilder.EncryptedKeyBuilder>

iu.crypt.JweRecipientBuilder.EncryptedKeyBuilder

All Implemented Interfaces:

WebCertificateReference.Builder<JweRecipientBuilder.EncryptedKeyBuilder>, WebCryptoHeader.Builder<JweRecipientBuilder.EncryptedKeyBuilder>, WebKeyReference.Builder<JweRecipientBuilder.EncryptedKeyBuilder>

Enclosing class:

JweRecipientBuilder

class JweRecipientBuilder.EncryptedKeyBuilder
extends JoseBuilder<JweRecipientBuilder.EncryptedKeyBuilder>

Handles ephemeral key-protection parameters.

Method Summary

Modifier and Type	Method	Description
(package private) byte[]	agreedUponKey(WebEncryption.Encryption encryption)	Computes the agreed-upon key for the Elliptic Curve Diffie-Hellman algorithm.
(package private) WebKey.Algorithm	algorithm()	Gets the algorithm
(package private) JweRecipient	encrypt(WebEncryption.Encryption encryption, byte[] contentEncryptionKey)	Generates the encrypted key and creates the recipient.
(package private) byte[]	passphraseDerivedKey()	Gets the passphrase-derived key to use with PBKDF2 key derivation defined by PKCS#5.

Methods inherited from class iu.crypt.JoseBuilder

contentType, copy, crit, key, key, param, param, param, type, wellKnown, wellKnown

Methods inherited from class iu.crypt.KeyReferenceBuilder

algorithm, keyId

Methods inherited from class iu.crypt.CertificateReferenceBuilder

cert, cert, pem, pem, x5t, x5t256

Methods inherited from class edu.iu.client.IuJsonBuilder

build, param, paramNames, toJson

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.iu.crypt.WebCertificateReference.Builder

cert, cert, pem, pem, x5t, x5t256

Methods inherited from interface edu.iu.crypt.WebCryptoHeader.Builder

keyId

Method Details

algorithm

WebKey.Algorithm algorithm()

Gets the algorithm

Returns:

algorithm

agreedUponKey

byte[] agreedUponKey(WebEncryption.Encryption encryption)

Computes the agreed-upon key for the Elliptic Curve Diffie-Hellman algorithm.

Parameters:

encryption - encryption algorithm

Returns:

agreed-upon key

See Also:

• RFC-7518 JWA Section 4.6
• RFC-7516 JWE Section 5.1 #3

passphraseDerivedKey

byte[] passphraseDerivedKey()

Gets the passphrase-derived key to use with PBKDF2 key derivation defined by PKCS#5.

Returns:

128-bit derived key data suitable for use with AESWrap

encrypt

JweRecipient encrypt(WebEncryption.Encryption encryption,
 byte[] contentEncryptionKey)

Generates the encrypted key and creates the recipient.

Parameters:

encryption - content encryption algorithm

contentEncryptionKey - supplies an ephemeral content encryption key if needed

Returns:

recipient