RSAPrivateKey (Java SE 17 & JDK 17)
Description: declaration: module: java.base, package: java.security.interfaces, interface: RSAPrivateKey
Keywords: java.security.interfaces.RSAPrivateKey interface

Module java.base
Package java.security.interfaces

# Interface RSAPrivateKey

All Superinterfaces:
  `Destroyable`, `Key`, `PrivateKey`, `RSAKey`, `Serializable`

All Known Subinterfaces:
  `RSAMultiPrimePrivateCrtKey`, `RSAPrivateCrtKey`

public interface RSAPrivateKey extends PrivateKey, RSAKey
The interface to an RSA private key.

Since:
  1.2
See Also:
  - `RSAPrivateCrtKey`

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final long`
  `serialVersionUID`
  Deprecated.
  A `serialVersionUID` field in an interface is ineffectual.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `BigInteger`
  `getPrivateExponent()`
  Returns the private exponent.

  ### Methods declared in interface javax.security.auth.Destroyable

  `destroy, isDestroyed`

  ### Methods declared in interface java.security.Key

  `getAlgorithm, getEncoded, getFormat`

  ### Methods declared in interface java.security.interfaces.RSAKey

  `getModulus, getParams`

- ## Field Details

  - ### serialVersionUID

    @Deprecated static final long serialVersionUID
    Deprecated.
    A `serialVersionUID` field in an interface is ineffectual. Do not use; no replacement.
    The type fingerprint that is set to indicate serialization compatibility with a previous version of the type.
    See Also:
      - Constant Field Values

- ## Method Details

  - ### getPrivateExponent

    BigInteger getPrivateExponent()
    Returns the private exponent.
    Returns:
      the private exponent