com.google.crypto.tink.signature

Class Ed25519PrivateKeyManager

java.lang.Object

com.google.crypto.tink.internal.KeyTypeManager<KeyProtoT>

com.google.crypto.tink.internal.PrivateKeyTypeManager<Ed25519PrivateKey,Ed25519PublicKey>

com.google.crypto.tink.signature.Ed25519PrivateKeyManager

public final class Ed25519PrivateKeyManager
extends PrivateKeyTypeManager<Ed25519PrivateKey,Ed25519PublicKey>

This instance of KeyManager generates new Ed25519PrivateKey keys and produces new instances of Ed25519Sign.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.crypto.tink.internal.KeyTypeManager

KeyTypeManager.KeyFactory<KeyFormatProtoT extends com.google.protobuf.MessageLite,KeyProtoT extends com.google.protobuf.MessageLite>

Method Summary

Modifier and Type	Method and Description
static KeyTemplate	ed25519Template()
String	getKeyType() Returns the type URL that identifies the key type of keys managed by this KeyManager.
Ed25519PublicKey	getPublicKey(Ed25519PrivateKey key) Creates a public key from the given private key.
int	getVersion() Returns the version number of this KeyManager.
KeyTypeManager.KeyFactory<Ed25519KeyFormat,Ed25519PrivateKey>	keyFactory() Returns the KeyTypeManager.KeyFactory for this key type.
KeyData.KeyMaterialType	keyMaterialType() Returns the KeyData.KeyMaterialType for this proto.
Ed25519PrivateKey	parseKey(com.google.protobuf.ByteString byteString) Parses a serialized key proto.
static KeyTemplate	rawEd25519Template()
static void	registerPair(boolean newKeyAllowed) Registers the Ed25519PrivateKeyManager and the Ed25519PublicKeyManager with the registry, so that the the Ed25519-Keys can be used with Tink.
void	validateKey(Ed25519PrivateKey keyProto) Checks if the given keyProto is a valid key.

Methods inherited from class com.google.crypto.tink.internal.PrivateKeyTypeManager

getPublicKeyClass

Methods inherited from class com.google.crypto.tink.internal.KeyTypeManager

fipsStatus, firstSupportedPrimitiveClass, getKeyClass, getPrimitive, supportedPrimitives

Methods inherited from class java.lang.Object

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

Method Detail

getKeyType

public String getKeyType()

Description copied from class: KeyTypeManager

Returns the type URL that identifies the key type of keys managed by this KeyManager.

Specified by:

getKeyType in class KeyTypeManager<Ed25519PrivateKey>

getVersion

public int getVersion()

Description copied from class: KeyTypeManager

Returns the version number of this KeyManager.

Specified by:

getVersion in class KeyTypeManager<Ed25519PrivateKey>

getPublicKey

public Ed25519PublicKey getPublicKey(Ed25519PrivateKey key)
                              throws GeneralSecurityException

Description copied from class: PrivateKeyTypeManager

Creates a public key from the given private key.

Specified by:

getPublicKey in class PrivateKeyTypeManager<Ed25519PrivateKey,Ed25519PublicKey>

Throws:

GeneralSecurityException

keyMaterialType

public KeyData.KeyMaterialType keyMaterialType()

Description copied from class: KeyTypeManager

Returns the KeyData.KeyMaterialType for this proto.

Specified by:

keyMaterialType in class KeyTypeManager<Ed25519PrivateKey>

parseKey

public Ed25519PrivateKey parseKey(com.google.protobuf.ByteString byteString)
                           throws com.google.protobuf.InvalidProtocolBufferException

Description copied from class: KeyTypeManager

Parses a serialized key proto.

Implement as return KeyProtoT.parseFrom(byteString);.

Specified by:

parseKey in class KeyTypeManager<Ed25519PrivateKey>

Throws:

com.google.protobuf.InvalidProtocolBufferException

validateKey

public void validateKey(Ed25519PrivateKey keyProto)
                 throws GeneralSecurityException

Description copied from class: KeyTypeManager

Checks if the given keyProto is a valid key.

Specified by:

validateKey in class KeyTypeManager<Ed25519PrivateKey>

Throws:

GeneralSecurityException - if the passed keyProto is not valid in any way.

keyFactory

public KeyTypeManager.KeyFactory<Ed25519KeyFormat,Ed25519PrivateKey> keyFactory()

Description copied from class: KeyTypeManager

Returns the KeyTypeManager.KeyFactory for this key type.

By default, this throws an UnsupportedOperationException. Hence, if an implementation does not support creating primitives, no implementation is required.

Overrides:

keyFactory in class KeyTypeManager<Ed25519PrivateKey>

registerPair

public static void registerPair(boolean newKeyAllowed)
                         throws GeneralSecurityException

Registers the Ed25519PrivateKeyManager and the Ed25519PublicKeyManager with the registry, so that the the Ed25519-Keys can be used with Tink.

Throws:

GeneralSecurityException

ed25519Template

public static final KeyTemplate ed25519Template()

Returns:

A KeyTemplate that generates new instances of ED25519 keys.

rawEd25519Template

public static final KeyTemplate rawEd25519Template()

Returns:

A KeyTemplate that generates new instances of Ed25519 keys. Keys generated from this template creates raw signatures of exactly 64 bytes. It's compatible with most other libraries.