Package com.nimbusds.jose.crypto
Class X25519Encrypter
- java.lang.Object
-
- com.nimbusds.jose.crypto.impl.ECDHCryptoProvider
-
- com.nimbusds.jose.crypto.X25519Encrypter
-
- All Implemented Interfaces:
JCAAware<JWEJCAContext>
,JOSEProvider
,JWEEncrypter
,JWEProvider
@ThreadSafe public class X25519Encrypter extends ECDHCryptoProvider implements JWEEncrypter
Curve25519 Elliptic Curve Diffie-Hellman encrypter ofJWE objects
. Expects a publicOctetKeyPair
key with"crv"
X25519.See RFC 8037 for more information.
See also
ECDHEncrypter
for ECDH on other curves.This class is thread-safe.
Supports the following key management algorithms:
JWEAlgorithm.ECDH_ES
JWEAlgorithm.ECDH_ES_A128KW
JWEAlgorithm.ECDH_ES_A192KW
JWEAlgorithm.ECDH_ES_A256KW
Supports the following elliptic curve:
Curve.X25519
(Curve25519)
Supports the following content encryption algorithms:
- Version:
- 2018-07-12
- Author:
- Tim McLean
-
-
Field Summary
-
Fields inherited from class com.nimbusds.jose.crypto.impl.ECDHCryptoProvider
SUPPORTED_ALGORITHMS, SUPPORTED_ENCRYPTION_METHODS
-
-
Constructor Summary
Constructors Constructor Description X25519Encrypter(OctetKeyPair publicKey)
Creates a new Curve25519 Elliptic Curve Diffie-Hellman encrypter.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description JWECryptoParts
encrypt(JWEHeader header, byte[] clearText)
Encrypts the specified clear text of aJWE object
.JWEJCAContext
getJCAContext()
Returns the Java Cryptography Architecture (JCA) context.OctetKeyPair
getPublicKey()
Returns the public key.Set<Curve>
supportedEllipticCurves()
Returns the names of the supported elliptic curves.Set<EncryptionMethod>
supportedEncryptionMethods()
Returns the names of the supported encryption methods by the JWE provier.Set<JWEAlgorithm>
supportedJWEAlgorithms()
Returns the names of the supported algorithms by the JWE provider instance.-
Methods inherited from class com.nimbusds.jose.crypto.impl.ECDHCryptoProvider
decryptWithZ, encryptWithZ, encryptWithZ, getConcatKDF, getCurve
-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
-
Methods inherited from interface com.nimbusds.jose.jca.JCAAware
getJCAContext
-
Methods inherited from interface com.nimbusds.jose.JWEProvider
supportedEncryptionMethods, supportedJWEAlgorithms
-
-
-
-
Constructor Detail
-
X25519Encrypter
public X25519Encrypter(OctetKeyPair publicKey) throws JOSEException
Creates a new Curve25519 Elliptic Curve Diffie-Hellman encrypter.- Parameters:
publicKey
- The public key. Must not benull
.- Throws:
JOSEException
- If the key subtype is not supported.
-
-
Method Detail
-
supportedEllipticCurves
public Set<Curve> supportedEllipticCurves()
Description copied from class:ECDHCryptoProvider
Returns the names of the supported elliptic curves. These correspond to thecrv
EC JWK parameter.- Specified by:
supportedEllipticCurves
in classECDHCryptoProvider
- Returns:
- The supported elliptic curves.
-
getPublicKey
public OctetKeyPair getPublicKey()
Returns the public key.- Returns:
- The public key.
-
encrypt
public JWECryptoParts encrypt(JWEHeader header, byte[] clearText) throws JOSEException
Description copied from interface:JWEEncrypter
Encrypts the specified clear text of aJWE object
.- Specified by:
encrypt
in interfaceJWEEncrypter
- Parameters:
header
- The JSON Web Encryption (JWE) header. Must specify a supported JWE algorithm and method. Must not benull
.clearText
- The clear text to encrypt. Must not benull
.- Returns:
- The resulting JWE crypto parts.
- Throws:
JOSEException
- If the JWE algorithm or method is not supported or if encryption failed for some other internal reason.
-
supportedJWEAlgorithms
public Set<JWEAlgorithm> supportedJWEAlgorithms()
Description copied from interface:JWEProvider
Returns the names of the supported algorithms by the JWE provider instance. These correspond to thealg
JWE header parameter.- Specified by:
supportedJWEAlgorithms
in interfaceJWEProvider
- Returns:
- The supported JWE algorithms, empty set if none.
-
supportedEncryptionMethods
public Set<EncryptionMethod> supportedEncryptionMethods()
Description copied from interface:JWEProvider
Returns the names of the supported encryption methods by the JWE provier. These correspond to theenc
JWE header parameter.- Specified by:
supportedEncryptionMethods
in interfaceJWEProvider
- Returns:
- The supported encryption methods, empty set if none.
-
getJCAContext
public JWEJCAContext getJCAContext()
Description copied from interface:JCAAware
Returns the Java Cryptography Architecture (JCA) context. May be used to set a specific JCA security provider or secure random generator.- Specified by:
getJCAContext
in interfaceJCAAware<JWEJCAContext>
- Returns:
- The JCA context. Not
null
.
-
-