com.google.crypto.tink.signature

Class Ed25519PrivateKey

java.lang.Object

com.google.crypto.tink.Key

com.google.crypto.tink.signature.SignaturePrivateKey

com.google.crypto.tink.signature.Ed25519PrivateKey

All Implemented Interfaces:

PrivateKey

@Alpha
 @Immutable
public final class Ed25519PrivateKey
extends SignaturePrivateKey

The key for computing Ed25519 signatures.

This API is annotated with Alpha because it is not yet stable and might be changed in the future.

Method Summary

Modifier and Type	Method and Description
static Ed25519PrivateKey	create(Ed25519PublicKey publicKey, SecretBytes privateKeyBytes)
boolean	equalsKey(Key o) Returns true if the key is equal to the passed in key.
Ed25519Parameters	getParameters() Returns the parameters of this key.
SecretBytes	getPrivateKeyBytes()
Ed25519PublicKey	getPublicKey() Returns the SignaturePublicKey, which contains the verify function of the digital signature primitive.

Methods inherited from class com.google.crypto.tink.signature.SignaturePrivateKey

getIdRequirementOrNull, getOutputPrefix

Methods inherited from class java.lang.Object

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

Method Detail

create

public static Ed25519PrivateKey create(Ed25519PublicKey publicKey,
                                       SecretBytes privateKeyBytes)
                                throws GeneralSecurityException

Throws:

GeneralSecurityException

getParameters

public Ed25519Parameters getParameters()

Description copied from class: SignaturePrivateKey

Returns the parameters of this key.

Returns the same as getPublicKey().getParameters().

Overrides:

getParameters in class SignaturePrivateKey

getPublicKey

public Ed25519PublicKey getPublicKey()

Description copied from class: SignaturePrivateKey

Returns the SignaturePublicKey, which contains the verify function of the digital signature primitive.

Specified by:

getPublicKey in interface PrivateKey

Specified by:

getPublicKey in class SignaturePrivateKey

getPrivateKeyBytes

public SecretBytes getPrivateKeyBytes()

equalsKey

public boolean equalsKey(Key o)

Description copied from class: Key

Returns true if the key is equal to the passed in key.

Implementations are required to do this in constant time.

Note: Tink Key objects should typically not override hashCode (because it could risk leaking key material). Hence, they typically also should not override equals.

Specified by:

equalsKey in class Key