Package com.nimbusds.jose.jwk.gen

Class RSAKeyGenerator

java.lang.Object

com.nimbusds.jose.jwk.gen.JWKGenerator<RSAKey>

com.nimbusds.jose.jwk.gen.RSAKeyGenerator

public class RSAKeyGenerator
extends JWKGenerator<RSAKey>

RSA JSON Web Key (JWK) generator.

Version:

2023-01-29

Author:

Vladimir Dzhuvinov, Justin Cranford

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MIN_KEY_SIZE_BITS	The minimum size of generated keys.

Fields inherited from class com.nimbusds.jose.jwk.gen.JWKGenerator

alg, exp, iat, keyStore, kid, nbf, ops, provider, secureRandom, use, x5tKid

Constructor Summary

Constructors

Constructor	Description
RSAKeyGenerator(int size)	Creates a new RSA JWK generator.
RSAKeyGenerator(int size, boolean allowWeakKeys)	Creates a new RSA JWK generator.

Method Summary

Modifier and Type	Method	Description
RSAKey	generate()	Generates the JWK according to the set parameters.

Methods inherited from class com.nimbusds.jose.jwk.gen.JWKGenerator

algorithm, expirationTime, issueTime, keyID, keyIDFromThumbprint, keyOperations, keyStore, keyUse, notBeforeTime, provider, secureRandom

Methods inherited from class java.lang.Object

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

Field Details

MIN_KEY_SIZE_BITS

public static final int MIN_KEY_SIZE_BITS

The minimum size of generated keys.

See Also:

• Constant Field Values

Constructor Details

RSAKeyGenerator

public RSAKeyGenerator(int size)

Creates a new RSA JWK generator.

Parameters:

size - The RSA key size, in bits. Must be at least 2048 bits long for sufficient strength.

RSAKeyGenerator

public RSAKeyGenerator(int size,
 boolean allowWeakKeys)

Creates a new RSA JWK generator.

Parameters:

size - The RSA key size, in bits. Must be at least 2048 bits long for sufficient strength.

allowWeakKeys - true to allow generation of keys shorter than 2048 bits.

Method Details

generate

public RSAKey generate()
                throws JOSEException

Description copied from class: JWKGenerator

Generates the JWK according to the set parameters.

Specified by:

generate in class JWKGenerator<RSAKey>

Returns:

The generated JWK.

Throws:

JOSEException - If the key generation failed.