com.google.crypto.tink.aead

Class ChaCha20Poly1305KeyManager

java.lang.Object

com.google.crypto.tink.internal.KeyTypeManager<ChaCha20Poly1305Key>

com.google.crypto.tink.aead.ChaCha20Poly1305KeyManager

public class ChaCha20Poly1305KeyManager
extends KeyTypeManager<ChaCha20Poly1305Key>

This instance of KeyManager generates new ChaCha20Poly1305 keys and produces new instances of ChaCha20Poly1305.

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	chaCha20Poly1305Template()
String	getKeyType() Returns the type URL that identifies the key type of keys managed by this KeyManager.
int	getVersion() Returns the version number of this KeyManager.
KeyTypeManager.KeyFactory<ChaCha20Poly1305KeyFormat,ChaCha20Poly1305Key>	keyFactory() Returns the KeyTypeManager.KeyFactory for this key type.
KeyData.KeyMaterialType	keyMaterialType() Returns the KeyData.KeyMaterialType for this proto.
ChaCha20Poly1305Key	parseKey(com.google.protobuf.ByteString byteString) Parses a serialized key proto.
static KeyTemplate	rawChaCha20Poly1305Template()
static void	register(boolean newKeyAllowed)
void	validateKey(ChaCha20Poly1305Key key) Checks if the given keyProto is a valid key.

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<ChaCha20Poly1305Key>

getVersion

public int getVersion()

Description copied from class: KeyTypeManager

Returns the version number of this KeyManager.

Specified by:

getVersion in class KeyTypeManager<ChaCha20Poly1305Key>

keyMaterialType

public KeyData.KeyMaterialType keyMaterialType()

Description copied from class: KeyTypeManager

Returns the KeyData.KeyMaterialType for this proto.

Specified by:

keyMaterialType in class KeyTypeManager<ChaCha20Poly1305Key>

validateKey

public void validateKey(ChaCha20Poly1305Key key)
                 throws GeneralSecurityException

Description copied from class: KeyTypeManager

Checks if the given keyProto is a valid key.

Specified by:

validateKey in class KeyTypeManager<ChaCha20Poly1305Key>

Throws:

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

parseKey

public ChaCha20Poly1305Key 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<ChaCha20Poly1305Key>

Throws:

com.google.protobuf.InvalidProtocolBufferException

keyFactory

public KeyTypeManager.KeyFactory<ChaCha20Poly1305KeyFormat,ChaCha20Poly1305Key> 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<ChaCha20Poly1305Key>

register

public static void register(boolean newKeyAllowed)
                     throws GeneralSecurityException

Throws:

GeneralSecurityException

chaCha20Poly1305Template

public static final KeyTemplate chaCha20Poly1305Template()

Returns:

a KeyTemplate that generates new instances of ChaCha20Poly1305 keys.

rawChaCha20Poly1305Template

public static final KeyTemplate rawChaCha20Poly1305Template()

Returns:

a KeyTemplate that generates new instances of ChaCha20Poly1305 keys. Keys generated from this template create ciphertexts compatible with libsodium and other libraries.