com.google.crypto.tink.signature

Class SignatureKeyTemplates

java.lang.Object

com.google.crypto.tink.signature.SignatureKeyTemplates

public final class SignatureKeyTemplates
extends Object

Pre-generated KeyTemplate for PublicKeySign and PublicKeyVerify.

One can use these templates to generate new Keyset with KeysetHandle. To generate a new keyset that contains a single EcdsaPrivateKey, one can do:

 Config.register(SignatureConfig.TINK_1_1_0);
 KeysetHandle handle = KeysetHandle.generateNew(SignatureKeyTemplates.ECDSA_P256);
 PublicKeySign signer = PublicKeySignFactory.getPrimitive(handle);
 

Since:

1.0.0

Field Summary

Fields

Modifier and Type	Field and Description
static KeyTemplate	ECDSA_P256 A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters: Hash function: SHA256 Curve: NIST P-256 Signature encoding: DER (this is the encoding that Java uses).
static KeyTemplate	ECDSA_P256_IEEE_P1363 A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters: Hash function: SHA256 Curve: NIST P-256 Signature encoding: IEEE_P1363 (this is the encoding that JWS and WebCrypto use).
static KeyTemplate	ECDSA_P384 A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters: Hash function: SHA512 Curve: NIST P-384 Signature encoding: DER (this is the encoding that Java uses).
static KeyTemplate	ECDSA_P384_IEEE_P1363 A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters: Hash function: SHA512 Curve: NIST P-384 Signature encoding: IEEE_P1363 (this is the encoding that JWS and WebCrypto use).
static KeyTemplate	ECDSA_P521 A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters: Hash function: SHA512 Curve: NIST P-521 Signature encoding: DER (this is the encoding that Java uses).
static KeyTemplate	ECDSA_P521_IEEE_P1363 A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters: Hash function: SHA512 Curve: NIST P-521 Signature encoding: IEEE_P1363 (this is the encoding that JWS and WebCrypto use).
static KeyTemplate	ED25519 A KeyTemplate that generates new instances of Ed25519PrivateKey.

Constructor Summary

Constructors

Constructor and Description
SignatureKeyTemplates()

Method Summary

Modifier and Type	Method and Description
static KeyTemplate	createEcdsaKeyTemplate(HashType hashType, EllipticCurveType curve, EcdsaSignatureEncoding encoding)

Methods inherited from class java.lang.Object

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

Field Detail

ECDSA_P256

public static final KeyTemplate ECDSA_P256

A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters:

• Hash function: SHA256
• Curve: NIST P-256
• Signature encoding: DER (this is the encoding that Java uses).

ECDSA_P384

public static final KeyTemplate ECDSA_P384

A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters:

• Hash function: SHA512
• Curve: NIST P-384
• Signature encoding: DER (this is the encoding that Java uses).

ECDSA_P521

public static final KeyTemplate ECDSA_P521

A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters:

• Hash function: SHA512
• Curve: NIST P-521
• Signature encoding: DER (this is the encoding that Java uses).

ECDSA_P256_IEEE_P1363

public static final KeyTemplate ECDSA_P256_IEEE_P1363

A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters:

• Hash function: SHA256
• Curve: NIST P-256
• Signature encoding: IEEE_P1363 (this is the encoding that JWS and WebCrypto use).

ECDSA_P384_IEEE_P1363

public static final KeyTemplate ECDSA_P384_IEEE_P1363

A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters:

• Hash function: SHA512
• Curve: NIST P-384
• Signature encoding: IEEE_P1363 (this is the encoding that JWS and WebCrypto use).

ECDSA_P521_IEEE_P1363

public static final KeyTemplate ECDSA_P521_IEEE_P1363

A KeyTemplate that generates new instances of EcdsaPrivateKey with the following parameters:

• Hash function: SHA512
• Curve: NIST P-521
• Signature encoding: IEEE_P1363 (this is the encoding that JWS and WebCrypto use).

ED25519

public static final KeyTemplate ED25519

A KeyTemplate that generates new instances of Ed25519PrivateKey.

Since:

1.1.0

Constructor Detail

SignatureKeyTemplates

public SignatureKeyTemplates()

Method Detail

createEcdsaKeyTemplate

public static KeyTemplate createEcdsaKeyTemplate(HashType hashType,
                                                 EllipticCurveType curve,
                                                 EcdsaSignatureEncoding encoding)

Returns:

a KeyTemplate containing a HmacKeyFormat with some specified parameters.