java.lang.Object
- java.lang.Enum<SignatureAlgorithm>
- - org.springframework.security.oauth2.jose.jws.SignatureAlgorithm

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<SignatureAlgorithm>, JwaAlgorithm, JwsAlgorithm
```
public enum SignatureAlgorithm
extends java.lang.Enum<SignatureAlgorithm>
implements JwsAlgorithm
```
An enumeration of the cryptographic algorithms defined by the JSON Web Algorithms (JWA) specification and used by JSON Web Signature (JWS) to digitally sign the contents of the JWS Protected Header and JWS Payload.

Since:

5.2

See Also:

JwsAlgorithm, JSON Web Algorithms (JWA), JSON Web Signature (JWS), Cryptographic Algorithms for Digital Signatures and MACs

Enum Constant Summary

Enum Constants
Enum Constant	Description
`ES256`	ECDSA using P-256 and SHA-256 (Recommended+)
`ES384`	ECDSA using P-384 and SHA-384 (Optional)
`ES512`	ECDSA using P-521 and SHA-512 (Optional)
`PS256`	RSASSA-PSS using SHA-256 and MGF1 with SHA-256 (Optional)
`PS384`	RSASSA-PSS using SHA-384 and MGF1 with SHA-384 (Optional)
`PS512`	RSASSA-PSS using SHA-512 and MGF1 with SHA-512 (Optional)
`RS256`	RSASSA-PKCS1-v1_5 using SHA-256 (Recommended)
`RS384`	RSASSA-PKCS1-v1_5 using SHA-384 (Optional)
`RS512`	RSASSA-PKCS1-v1_5 using SHA-512 (Optional)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static SignatureAlgorithm`	`from(java.lang.String name)`	Attempt to resolve the provided algorithm name to a `SignatureAlgorithm`.
`java.lang.String`	`getName()`	Returns the algorithm name.
`static SignatureAlgorithm`	`valueOf(java.lang.String name)`	Returns the enum constant of this type with the specified name.
`static SignatureAlgorithm[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - RS256
```
public static final SignatureAlgorithm RS256
```
    RSASSA-PKCS1-v1_5 using SHA-256 (Recommended)
  - RS384
```
public static final SignatureAlgorithm RS384
```
    RSASSA-PKCS1-v1_5 using SHA-384 (Optional)
  - RS512
```
public static final SignatureAlgorithm RS512
```
    RSASSA-PKCS1-v1_5 using SHA-512 (Optional)
  - ES256
```
public static final SignatureAlgorithm ES256
```
    ECDSA using P-256 and SHA-256 (Recommended+)
  - ES384
```
public static final SignatureAlgorithm ES384
```
    ECDSA using P-384 and SHA-384 (Optional)
  - ES512
```
public static final SignatureAlgorithm ES512
```
    ECDSA using P-521 and SHA-512 (Optional)
  - PS256
```
public static final SignatureAlgorithm PS256
```
    RSASSA-PSS using SHA-256 and MGF1 with SHA-256 (Optional)
  - PS384
```
public static final SignatureAlgorithm PS384
```
    RSASSA-PSS using SHA-384 and MGF1 with SHA-384 (Optional)
  - PS512
```
public static final SignatureAlgorithm PS512
```
    RSASSA-PSS using SHA-512 and MGF1 with SHA-512 (Optional)
- Method Detail
  - values
```
public static SignatureAlgorithm[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (SignatureAlgorithm c : SignatureAlgorithm.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static SignatureAlgorithm valueOf(java.lang.String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
    
    java.lang.NullPointerException - if the argument is null
  - getName
```
public java.lang.String getName()
```
    Returns the algorithm name.
    
    Specified by:
    
    getName in interface JwaAlgorithm
    
    Returns:
    
    the algorithm name
  - from
```
public static SignatureAlgorithm from(java.lang.String name)
```
    Attempt to resolve the provided algorithm name to a SignatureAlgorithm.
    
    Parameters:
    
    name - the algorithm name
    
    Returns:
    
    the resolved SignatureAlgorithm, or null if not found

Enum SignatureAlgorithm

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

RS256

RS384

RS512

ES256

ES384

ES512

PS256

PS384

PS512

Method Detail

values

valueOf

getName

from