com.google.crypto.tink.signature

Class RsaSsaPkcs1PrivateKey

java.lang.Object

com.google.crypto.tink.Key

com.google.crypto.tink.signature.SignaturePrivateKey

com.google.crypto.tink.signature.RsaSsaPkcs1PrivateKey

All Implemented Interfaces:

PrivateKey

public final class RsaSsaPkcs1PrivateKey
extends SignaturePrivateKey

Represents a private key for RSA SSA PKCS1 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	RsaSsaPkcs1PrivateKey.Builder Builder for RsaSsaPkcs1PrivateKey.

Method Summary

Modifier and Type	Method and Description
static RsaSsaPkcs1PrivateKey.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.
RsaSsaPkcs1Parameters	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.
RsaSsaPkcs1PublicKey	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 RsaSsaPkcs1PrivateKey.Builder builder()

getParameters

public RsaSsaPkcs1Parameters getParameters()

Returns the key parameters.

Overrides:

getParameters in class SignaturePrivateKey

getPublicKey

public RsaSsaPkcs1PublicKey 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