RSAPublicKey (Java SE 15 & JDK 15)
Description: declaration: module: java.base, package: java.security.interfaces, interface: RSAPublicKey
Keywords: java.security.interfaces.RSAPublicKey interface

Module java.base
Package java.security.interfaces

# Interface RSAPublicKey

All Superinterfaces:
  `Key`, `PublicKey`, `RSAKey`, `Serializable`

    public interface RSAPublicKey
    extends PublicKey, RSAKey

The interface to an RSA public key.

Since:
  1.2

- ## Field Summary

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

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `BigInteger` | `getPublicExponent()` | Returns the public exponent.

  ### 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

  - ### getPublicExponent

    BigInteger getPublicExponent()
    Returns the public exponent.
    Returns:
      the public exponent