Package com.google.crypto.tink.signature.internal

Class Ed25519SignJce

java.lang.Object

com.google.crypto.tink.signature.internal.Ed25519SignJce

All Implemented Interfaces:

PublicKeySign

@Immutable
public final class Ed25519SignJce
extends java.lang.Object
implements PublicKeySign

Ed25519 signing using the JCE.

Can currently only be used when the Conscrypt provider is available.

Field Summary

Fields

Modifier and Type	Field	Description
static TinkFipsUtil.AlgorithmFipsCompatibility	FIPS
static int	SECRET_KEY_LEN
static int	SIGNATURE_LEN

Constructor Summary

Constructors

Constructor	Description
Ed25519SignJce(byte[] privateKey)	Constructs a Ed25519SignJce with the privateKey.

Method Summary

Modifier and Type	Method	Description
static PublicKeySign	create(Ed25519PrivateKey key)
static PublicKeySign	createWithProvider(Ed25519PrivateKey key, java.security.Provider provider)
static boolean	isSupported()	Returns true if the Conscrypt is available and supports Ed25519.
byte[]	sign(byte[] data)	Computes the signature for data.

Methods inherited from class java.lang.Object

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

Field Detail

FIPS

public static final TinkFipsUtil.AlgorithmFipsCompatibility FIPS

SECRET_KEY_LEN

public static final int SECRET_KEY_LEN

See Also:

Constant Field Values

SIGNATURE_LEN

public static final int SIGNATURE_LEN

See Also:

Constant Field Values

Constructor Detail

Ed25519SignJce

public Ed25519SignJce(byte[] privateKey)
               throws java.security.GeneralSecurityException

Constructs a Ed25519SignJce with the privateKey.

Throws:

java.security.GeneralSecurityException

Method Detail

create

public static PublicKeySign create(Ed25519PrivateKey key)
                            throws java.security.GeneralSecurityException

Throws:

java.security.GeneralSecurityException

createWithProvider

public static PublicKeySign createWithProvider(Ed25519PrivateKey key,
                                               java.security.Provider provider)
                                        throws java.security.GeneralSecurityException

Throws:

java.security.GeneralSecurityException

isSupported

public static boolean isSupported()

Returns true if the Conscrypt is available and supports Ed25519.

sign

public byte[] sign(byte[] data)
            throws java.security.GeneralSecurityException

Description copied from interface: PublicKeySign

Computes the signature for data.

Specified by:

sign in interface PublicKeySign

Returns:

the signature of data

Throws:

java.security.GeneralSecurityException