com.google.crypto.tink.signature

Class RsaSsaPssPrivateKey

java.lang.Object

com.google.crypto.tink.Key

com.google.crypto.tink.signature.SignaturePrivateKey

com.google.crypto.tink.signature.RsaSsaPssPrivateKey

All Implemented Interfaces:

PrivateKey

public final class RsaSsaPssPrivateKey
extends SignaturePrivateKey

Represents a private key for RSA SSA PSS signatures.

Standard: https://www.rfc-editor.org/rfc/rfc8017#section-3.2.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RsaSsaPssPrivateKey.Builder Builder for RsaSsaPssPrivateKey.

Method Summary

Modifier and Type	Method and Description
static RsaSsaPssPrivateKey.Builder	builder()
boolean	equalsKey(Key o) Returns true if the key is guaranteed to be equal to other.
SecretBigInteger	getCrtCoefficient() Returns the CRT coefficient qInv.
RsaSsaPssParameters	getParameters() Returns the key parameters.
SecretBigInteger	getPrimeExponentP() Returns the prime exponent dP.
SecretBigInteger	getPrimeExponentQ() Returns the prime exponent dQ.
SecretBigInteger	getPrimeP() Returns the prime factor p.
SecretBigInteger	getPrimeQ() Returns the prime factor q.
SecretBigInteger	getPrivateExponent() Returns the private exponent d.
RsaSsaPssPublicKey	getPublicKey() Returns the public key.

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

builder

public static RsaSsaPssPrivateKey.Builder builder()

getParameters

public RsaSsaPssParameters getParameters()

Returns the key parameters.

Overrides:

getParameters in class SignaturePrivateKey

getPublicKey

public RsaSsaPssPublicKey getPublicKey()

Returns the public key.

Specified by:

getPublicKey in interface PrivateKey

Specified by:

getPublicKey in class SignaturePrivateKey

getPrimeP

public SecretBigInteger getPrimeP()

Returns the prime factor p.

getPrimeQ

public SecretBigInteger getPrimeQ()

Returns the prime factor q.

getPrivateExponent

public SecretBigInteger getPrivateExponent()

Returns the private exponent d.

getPrimeExponentP

public SecretBigInteger getPrimeExponentP()

Returns the prime exponent dP.

getPrimeExponentQ

public SecretBigInteger getPrimeExponentQ()

Returns the prime exponent dQ.

getCrtCoefficient

public SecretBigInteger getCrtCoefficient()

Returns the CRT coefficient qInv.

equalsKey

public boolean equalsKey(Key o)

Description copied from class: Key

Returns true if the key is guaranteed to be equal to other.

Implementations are required to do this in constant time.

Note: this is allowed to return false even if two keys are guaranteed to represent the same function, but are represented differently. For example, a key is allowed to internally store the number of zero-bytes used as padding when a large number is represented as a byte array, and use this in the comparison.

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