java.lang.Object
- com.nimbusds.jose.Algorithm
- - com.nimbusds.jose.JWEAlgorithm

All Implemented Interfaces:

Serializable
```
@Immutable
public final class JWEAlgorithm
extends Algorithm
```
JSON Web Encryption (JWE) algorithm name, represents the alg header parameter in JWE objects. This class is immutable.
Includes constants for the following JWE algorithm names:
Additional JWE algorithm names can be defined using the constructors.
Version:

2023-09-13

Author:

Vladimir Dzhuvinov

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class JWEAlgorithm.Family
JWE algorithm family.

Field Summary

Fields
Modifier and Type	Field	Description
`static JWEAlgorithm`	`A128GCMKW`	AES in Galois/Counter Mode (GCM) (NIST.800-38D) 128 bit keys.
`static JWEAlgorithm`	`A128KW`	Advanced Encryption Standard (AES) Key Wrap Algorithm (RFC 3394) using 128 bit keys.
`static JWEAlgorithm`	`A192GCMKW`	AES in Galois/Counter Mode (GCM) (NIST.800-38D) 192 bit keys.
`static JWEAlgorithm`	`A192KW`	Advanced Encryption Standard (AES) Key Wrap Algorithm (RFC 3394) using 192 bit keys.
`static JWEAlgorithm`	`A256GCMKW`	AES in Galois/Counter Mode (GCM) (NIST.800-38D) 256 bit keys.
`static JWEAlgorithm`	`A256KW`	Advanced Encryption Standard (AES) Key Wrap Algorithm (RFC 3394) using 256 bit keys.
`static JWEAlgorithm`	`DIR`	Direct use of a shared symmetric key as the Content Encryption Key (CEK) for the block encryption step (rather than using the symmetric key to wrap the CEK).
`static JWEAlgorithm`	`ECDH_1PU`	Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement using the Concat KDF, as defined in section 5.8.1 of NIST.800-56A, with the agreed-upon key being used directly as the Content Encryption Key (CEK) (rather than being used to wrap the CEK).
`static JWEAlgorithm`	`ECDH_1PU_A128KW`	Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement per "ECDH-1PU", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A128KW" function (rather than being used directly as the CEK).
`static JWEAlgorithm`	`ECDH_1PU_A192KW`	Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement per "ECDH-1PU", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A192KW" function (rather than being used directly as the CEK).
`static JWEAlgorithm`	`ECDH_1PU_A256KW`	Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement per "ECDH-1PU", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A256KW" function (rather than being used directly as the CEK).
`static JWEAlgorithm`	`ECDH_ES`	Elliptic Curve Diffie-Hellman Ephemeral Static (RFC 6090) key agreement using the Concat KDF, as defined in section 5.8.1 of NIST.800-56A, with the agreed-upon key being used directly as the Content Encryption Key (CEK) (rather than being used to wrap the CEK).
`static JWEAlgorithm`	`ECDH_ES_A128KW`	Elliptic Curve Diffie-Hellman Ephemeral Static key agreement per "ECDH-ES", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A128KW" function (rather than being used directly as the CEK).
`static JWEAlgorithm`	`ECDH_ES_A192KW`	Elliptic Curve Diffie-Hellman Ephemeral Static key agreement per "ECDH-ES", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A192KW" function (rather than being used directly as the CEK).
`static JWEAlgorithm`	`ECDH_ES_A256KW`	Elliptic Curve Diffie-Hellman Ephemeral Static key agreement per "ECDH-ES", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A256KW" function (rather than being used directly as the CEK).
`static JWEAlgorithm`	`PBES2_HS256_A128KW`	PBES2 (RFC 2898) with HMAC SHA-256 as the PRF and AES Key Wrap (RFC 3394) using 128 bit keys for the encryption scheme.
`static JWEAlgorithm`	`PBES2_HS384_A192KW`	PBES2 (RFC 2898) with HMAC SHA-384 as the PRF and AES Key Wrap (RFC 3394) using 192 bit keys for the encryption scheme.
`static JWEAlgorithm`	`PBES2_HS512_A256KW`	PBES2 (RFC 2898) with HMAC SHA-512 as the PRF and AES Key Wrap (RFC 3394) using 256 bit keys for the encryption scheme.
`static JWEAlgorithm`	`RSA_OAEP`	Deprecated.
`static JWEAlgorithm`	`RSA_OAEP_256`	RSAES using Optimal Asymmetric Encryption Padding (OAEP) (RFC 3447), with the SHA-256 hash function and the MGF1 with SHA-256 mask generation function.
`static JWEAlgorithm`	`RSA_OAEP_384`	RSAES using Optimal Asymmetric Encryption Padding (OAEP) (RFC 3447), with the SHA-512 hash function and the MGF1 with SHA-384 mask generation function.
`static JWEAlgorithm`	`RSA_OAEP_512`	RSAES using Optimal Asymmetric Encryption Padding (OAEP) (RFC 3447), with the SHA-512 hash function and the MGF1 with SHA-512 mask generation function.
`static JWEAlgorithm`	`RSA1_5`	Deprecated.

Fields inherited from class com.nimbusds.jose.Algorithm
NONE

Constructor Summary

Constructors
Constructor	Description
`JWEAlgorithm(String name)`	Creates a new JSON Web Encryption (JWE) algorithm.
`JWEAlgorithm(String name, Requirement req)`	Creates a new JSON Web Encryption (JWE) algorithm.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type Method Description

static JWEAlgorithm parse(String s)
Parses a JWE algorithm from the specified string.
- Methods inherited from class com.nimbusds.jose.Algorithm
  equals, getName, getRequirement, hashCode, toJSONString, toString
- Methods inherited from class java.lang.Object
  clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - RSA1_5
```
@Deprecated
public static final JWEAlgorithm RSA1_5
```
    Deprecated.
    
    RSAES-PKCS1-V1_5 (RFC 3447). Use of this RSA encryption algorithm is no longer recommended, use RSA_OAEP_256 instead.
  - RSA_OAEP
```
@Deprecated
public static final JWEAlgorithm RSA_OAEP
```
    Deprecated.
    
    RSAES using Optimal Asymmetric Encryption Padding (OAEP) (RFC 3447), with the default parameters specified by RFC 3447 in section A.2.1. Use of this encryption algorithm is no longer recommended, use RSA_OAEP_256 instead.
  - RSA_OAEP_256
```
public static final JWEAlgorithm RSA_OAEP_256
```
    RSAES using Optimal Asymmetric Encryption Padding (OAEP) (RFC 3447), with the SHA-256 hash function and the MGF1 with SHA-256 mask generation function.
  - RSA_OAEP_384
```
public static final JWEAlgorithm RSA_OAEP_384
```
    RSAES using Optimal Asymmetric Encryption Padding (OAEP) (RFC 3447), with the SHA-512 hash function and the MGF1 with SHA-384 mask generation function.
  - RSA_OAEP_512
```
public static final JWEAlgorithm RSA_OAEP_512
```
    RSAES using Optimal Asymmetric Encryption Padding (OAEP) (RFC 3447), with the SHA-512 hash function and the MGF1 with SHA-512 mask generation function.
  - A128KW
```
public static final JWEAlgorithm A128KW
```
    Advanced Encryption Standard (AES) Key Wrap Algorithm (RFC 3394) using 128 bit keys.
  - A192KW
```
public static final JWEAlgorithm A192KW
```
    Advanced Encryption Standard (AES) Key Wrap Algorithm (RFC 3394) using 192 bit keys.
  - A256KW
```
public static final JWEAlgorithm A256KW
```
    Advanced Encryption Standard (AES) Key Wrap Algorithm (RFC 3394) using 256 bit keys.
  - DIR
```
public static final JWEAlgorithm DIR
```
    Direct use of a shared symmetric key as the Content Encryption Key (CEK) for the block encryption step (rather than using the symmetric key to wrap the CEK).
  - ECDH_ES
```
public static final JWEAlgorithm ECDH_ES
```
    Elliptic Curve Diffie-Hellman Ephemeral Static (RFC 6090) key agreement using the Concat KDF, as defined in section 5.8.1 of NIST.800-56A, with the agreed-upon key being used directly as the Content Encryption Key (CEK) (rather than being used to wrap the CEK).
  - ECDH_ES_A128KW
```
public static final JWEAlgorithm ECDH_ES_A128KW
```
    Elliptic Curve Diffie-Hellman Ephemeral Static key agreement per "ECDH-ES", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A128KW" function (rather than being used directly as the CEK).
  - ECDH_ES_A192KW
```
public static final JWEAlgorithm ECDH_ES_A192KW
```
    Elliptic Curve Diffie-Hellman Ephemeral Static key agreement per "ECDH-ES", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A192KW" function (rather than being used directly as the CEK).
  - ECDH_ES_A256KW
```
public static final JWEAlgorithm ECDH_ES_A256KW
```
    Elliptic Curve Diffie-Hellman Ephemeral Static key agreement per "ECDH-ES", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A256KW" function (rather than being used directly as the CEK).
  - ECDH_1PU
```
public static final JWEAlgorithm ECDH_1PU
```
    Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement using the Concat KDF, as defined in section 5.8.1 of NIST.800-56A, with the agreed-upon key being used directly as the Content Encryption Key (CEK) (rather than being used to wrap the CEK).
  - ECDH_1PU_A128KW
```
public static final JWEAlgorithm ECDH_1PU_A128KW
```
    Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement per "ECDH-1PU", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A128KW" function (rather than being used directly as the CEK).
  - ECDH_1PU_A192KW
```
public static final JWEAlgorithm ECDH_1PU_A192KW
```
    Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement per "ECDH-1PU", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A192KW" function (rather than being used directly as the CEK).
  - ECDH_1PU_A256KW
```
public static final JWEAlgorithm ECDH_1PU_A256KW
```
    Elliptic Curve Diffie-Hellman One-Pass Unified Model key agreement per "ECDH-1PU", but where the agreed-upon key is used to wrap the Content Encryption Key (CEK) with the "A256KW" function (rather than being used directly as the CEK).
  - A128GCMKW
```
public static final JWEAlgorithm A128GCMKW
```
    AES in Galois/Counter Mode (GCM) (NIST.800-38D) 128 bit keys.
  - A192GCMKW
```
public static final JWEAlgorithm A192GCMKW
```
    AES in Galois/Counter Mode (GCM) (NIST.800-38D) 192 bit keys.
  - A256GCMKW
```
public static final JWEAlgorithm A256GCMKW
```
    AES in Galois/Counter Mode (GCM) (NIST.800-38D) 256 bit keys.
  - PBES2_HS256_A128KW
```
public static final JWEAlgorithm PBES2_HS256_A128KW
```
    PBES2 (RFC 2898) with HMAC SHA-256 as the PRF and AES Key Wrap (RFC 3394) using 128 bit keys for the encryption scheme.
  - PBES2_HS384_A192KW
```
public static final JWEAlgorithm PBES2_HS384_A192KW
```
    PBES2 (RFC 2898) with HMAC SHA-384 as the PRF and AES Key Wrap (RFC 3394) using 192 bit keys for the encryption scheme.
  - PBES2_HS512_A256KW
```
public static final JWEAlgorithm PBES2_HS512_A256KW
```
    PBES2 (RFC 2898) with HMAC SHA-512 as the PRF and AES Key Wrap (RFC 3394) using 256 bit keys for the encryption scheme.
- Constructor Detail
  - JWEAlgorithm
```
public JWEAlgorithm(String name,
                    Requirement req)
```
    Creates a new JSON Web Encryption (JWE) algorithm.
    
    Parameters:
    
    name - The algorithm name. Must not be null.
    
    req - The implementation requirement, null if not known.
  - JWEAlgorithm
```
public JWEAlgorithm(String name)
```
    Creates a new JSON Web Encryption (JWE) algorithm.
    
    Parameters:
    
    name - The algorithm name. Must not be null.
- Method Detail
  - parse
```
public static JWEAlgorithm parse(String s)
```
    Parses a JWE algorithm from the specified string.
    
    Parameters:
    
    s - The string to parse. Must not be null.
    
    Returns:
    
    The JWE algorithm (matching standard algorithm constant, else a newly created algorithm).

Class JWEAlgorithm

Nested Class Summary

Field Summary

Fields inherited from class com.nimbusds.jose.Algorithm

Constructor Summary

Method Summary

Methods inherited from class com.nimbusds.jose.Algorithm

Methods inherited from class java.lang.Object

Field Detail

RSA1_5

RSA_OAEP

RSA_OAEP_256

RSA_OAEP_384

RSA_OAEP_512

A128KW

A192KW

A256KW

DIR

ECDH_ES

ECDH_ES_A128KW

ECDH_ES_A192KW

ECDH_ES_A256KW

ECDH_1PU

ECDH_1PU_A128KW

ECDH_1PU_A192KW

ECDH_1PU_A256KW

A128GCMKW

A192GCMKW

A256GCMKW

PBES2_HS256_A128KW

PBES2_HS384_A192KW

PBES2_HS512_A256KW

Constructor Detail

JWEAlgorithm

JWEAlgorithm

Method Detail

parse