Package org.jose4j.jwe

Class AesCbcHmacSha2ContentEncryptionAlgorithm

java.lang.Object

org.jose4j.jwa.AlgorithmInfo

org.jose4j.jwe.AesCbcHmacSha2ContentEncryptionAlgorithm

All Implemented Interfaces:

Algorithm, ContentEncryptionAlgorithm

Direct Known Subclasses:

AesCbcHmacSha2ContentEncryptionAlgorithm.Aes128CbcHmacSha256, AesCbcHmacSha2ContentEncryptionAlgorithm.Aes192CbcHmacSha384, AesCbcHmacSha2ContentEncryptionAlgorithm.Aes256CbcHmacSha512

public class AesCbcHmacSha2ContentEncryptionAlgorithm
extends AlgorithmInfo
implements ContentEncryptionAlgorithm

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AesCbcHmacSha2ContentEncryptionAlgorithm.Aes128CbcHmacSha256
static class	AesCbcHmacSha2ContentEncryptionAlgorithm.Aes192CbcHmacSha384
static class	AesCbcHmacSha2ContentEncryptionAlgorithm.Aes256CbcHmacSha512

Field Summary

Fields

Modifier and Type	Field	Description
private final ContentEncryptionKeyDescriptor	contentEncryptionKeyDescriptor
private final String	hmacJavaAlgorithm
static final int	IV_BYTE_LENGTH
private final int	tagTruncationLength

Fields inherited from class org.jose4j.jwa.AlgorithmInfo

log

Constructor Summary

Constructors

Constructor	Description
AesCbcHmacSha2ContentEncryptionAlgorithm(String alg, int cekByteLen, String javaHmacAlg, int tagTruncationLength)

Method Summary

Modifier and Type	Method	Description
byte[]	decrypt(ContentEncryptionParts contentEncryptionParts, byte[] aad, byte[] contentEncryptionKey, Headers headers, ProviderContext providerContext)
(package private) ContentEncryptionParts	encrypt(byte[] plaintext, byte[] aad, byte[] key, byte[] iv, Headers headers, ProviderContext providerContext)
ContentEncryptionParts	encrypt(byte[] plaintext, byte[] aad, byte[] contentEncryptionKey, Headers headers, byte[] ivOverride, ProviderContext providerContext)
private byte[]	getAdditionalAuthenticatedDataLengthBytes(byte[] additionalAuthenticatedData)
ContentEncryptionKeyDescriptor	getContentEncryptionKeyDescriptor()
String	getHmacJavaAlgorithm()
int	getTagTruncationLength()
boolean	isAvailable()

Methods inherited from class org.jose4j.jwa.AlgorithmInfo

getAlgorithmIdentifier, getJavaAlgorithm, getKeyPersuasion, getKeyType, setAlgorithmIdentifier, setJavaAlgorithm, setKeyPersuasion, setKeyType, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jose4j.jwa.Algorithm

getAlgorithmIdentifier, getJavaAlgorithm, getKeyPersuasion, getKeyType

Field Details

IV_BYTE_LENGTH

public static final int IV_BYTE_LENGTH

See Also:

• Constant Field Values

hmacJavaAlgorithm

private final String hmacJavaAlgorithm

tagTruncationLength

private final int tagTruncationLength

contentEncryptionKeyDescriptor

private final ContentEncryptionKeyDescriptor contentEncryptionKeyDescriptor

Constructor Details

AesCbcHmacSha2ContentEncryptionAlgorithm

public AesCbcHmacSha2ContentEncryptionAlgorithm(String alg,
 int cekByteLen,
 String javaHmacAlg,
 int tagTruncationLength)

Method Details

getHmacJavaAlgorithm

public String getHmacJavaAlgorithm()

getTagTruncationLength

public int getTagTruncationLength()

getContentEncryptionKeyDescriptor

public ContentEncryptionKeyDescriptor getContentEncryptionKeyDescriptor()

Specified by:

getContentEncryptionKeyDescriptor in interface ContentEncryptionAlgorithm

encrypt

public ContentEncryptionParts encrypt(byte[] plaintext,
 byte[] aad,
 byte[] contentEncryptionKey,
 Headers headers,
 byte[] ivOverride,
 ProviderContext providerContext)
                               throws JoseException

Specified by:

encrypt in interface ContentEncryptionAlgorithm

Throws:

JoseException

encrypt

ContentEncryptionParts encrypt(byte[] plaintext,
 byte[] aad,
 byte[] key,
 byte[] iv,
 Headers headers,
 ProviderContext providerContext)
                        throws JoseException

Throws:

JoseException

decrypt

public byte[] decrypt(ContentEncryptionParts contentEncryptionParts,
 byte[] aad,
 byte[] contentEncryptionKey,
 Headers headers,
 ProviderContext providerContext)
               throws JoseException

Specified by:

decrypt in interface ContentEncryptionAlgorithm

Throws:

JoseException

getAdditionalAuthenticatedDataLengthBytes

private byte[] getAdditionalAuthenticatedDataLengthBytes(byte[] additionalAuthenticatedData)

isAvailable

public boolean isAvailable()

Specified by:

isAvailable in interface Algorithm