com.google.crypto.tink.signature

Class RsaSsaPkcs1SignKeyManager

java.lang.Object

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

com.google.crypto.tink.internal.PrivateKeyTypeManager<RsaSsaPkcs1PrivateKey,RsaSsaPkcs1PublicKey>

com.google.crypto.tink.signature.RsaSsaPkcs1SignKeyManager

public final class RsaSsaPkcs1SignKeyManager
extends PrivateKeyTypeManager<RsaSsaPkcs1PrivateKey,RsaSsaPkcs1PublicKey>

This key manager generates new RsaSsaPkcs1PrivateKey keys and produces new instances of RsaSsaPkcs1SignJce.

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
TinkFipsUtil.AlgorithmFipsCompatibility	fipsStatus() Returns the FIPS compatibility of this KeyTypeManager.
String	getKeyType() Returns the type URL that identifies the key type of keys managed by this KeyManager.
RsaSsaPkcs1PublicKey	getPublicKey(RsaSsaPkcs1PrivateKey privKeyProto) Creates a public key from the given private key.
int	getVersion() Returns the version number of this KeyManager.
KeyTypeManager.KeyFactory<RsaSsaPkcs1KeyFormat,RsaSsaPkcs1PrivateKey>	keyFactory() Returns the KeyTypeManager.KeyFactory for this key type.
KeyData.KeyMaterialType	keyMaterialType() Returns the KeyData.KeyMaterialType for this proto.
RsaSsaPkcs1PrivateKey	parseKey(com.google.protobuf.ByteString byteString) Parses a serialized key proto.
static KeyTemplate	rawRsa3072SsaPkcs1Sha256F4Template()
static KeyTemplate	rawRsa4096SsaPkcs1Sha512F4Template()
static void	registerPair(boolean newKeyAllowed) Registers the RsaSsaPkcs1SignKeyManager and the RsaSsaPkcs1VerifyKeyManager with the registry, so that the the RsaSsaPkcs1-Keys can be used with Tink.
static KeyTemplate	rsa3072SsaPkcs1Sha256F4Template()
static KeyTemplate	rsa4096SsaPkcs1Sha512F4Template()
void	validateKey(RsaSsaPkcs1PrivateKey privKey) 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

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<RsaSsaPkcs1PrivateKey>

getVersion

public int getVersion()

Description copied from class: KeyTypeManager

Returns the version number of this KeyManager.

Specified by:

getVersion in class KeyTypeManager<RsaSsaPkcs1PrivateKey>

getPublicKey

public RsaSsaPkcs1PublicKey getPublicKey(RsaSsaPkcs1PrivateKey privKeyProto)
                                  throws GeneralSecurityException

Description copied from class: PrivateKeyTypeManager

Creates a public key from the given private key.

Specified by:

getPublicKey in class PrivateKeyTypeManager<RsaSsaPkcs1PrivateKey,RsaSsaPkcs1PublicKey>

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<RsaSsaPkcs1PrivateKey>

parseKey

public RsaSsaPkcs1PrivateKey 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<RsaSsaPkcs1PrivateKey>

Throws:

com.google.protobuf.InvalidProtocolBufferException

validateKey

public void validateKey(RsaSsaPkcs1PrivateKey privKey)
                 throws GeneralSecurityException

Description copied from class: KeyTypeManager

Checks if the given keyProto is a valid key.

Specified by:

validateKey in class KeyTypeManager<RsaSsaPkcs1PrivateKey>

Throws:

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

keyFactory

public KeyTypeManager.KeyFactory<RsaSsaPkcs1KeyFormat,RsaSsaPkcs1PrivateKey> 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<RsaSsaPkcs1PrivateKey>

fipsStatus

public TinkFipsUtil.AlgorithmFipsCompatibility fipsStatus()

Description copied from class: KeyTypeManager

Returns the FIPS compatibility of this KeyTypeManager.

Overrides:

fipsStatus in class KeyTypeManager<RsaSsaPkcs1PrivateKey>

registerPair

public static void registerPair(boolean newKeyAllowed)
                         throws GeneralSecurityException

Registers the RsaSsaPkcs1SignKeyManager and the RsaSsaPkcs1VerifyKeyManager with the registry, so that the the RsaSsaPkcs1-Keys can be used with Tink.

Throws:

GeneralSecurityException

rsa3072SsaPkcs1Sha256F4Template

public static final KeyTemplate rsa3072SsaPkcs1Sha256F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PKCS1 key pairs with the following parameters:

• Hash function: SHA256.
• Modulus size: 3072 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#TINK.

rawRsa3072SsaPkcs1Sha256F4Template

public static final KeyTemplate rawRsa3072SsaPkcs1Sha256F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PKCS1 key pairs with the following parameters:

• Hash function: SHA256.
• Modulus size: 3072 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#RAW (no prefix).

rsa4096SsaPkcs1Sha512F4Template

public static final KeyTemplate rsa4096SsaPkcs1Sha512F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PKCS1 key pairs with the following parameters:

• Hash function: SHA512.
• Modulus size: 4096 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#TINK.

rawRsa4096SsaPkcs1Sha512F4Template

public static final KeyTemplate rawRsa4096SsaPkcs1Sha512F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PKCS1 key pairs with the following parameters:

• Hash function: SHA512.
• Modulus size: 4096 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#RAW (no prefix).