RSAPublicKey (Java SE 12 & JDK 12 )
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 Detail

    - #### 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 Detail

    - #### getPublicExponent

          BigInteger getPublicExponent()

      Returns the public exponent.
      Returns:
        the public exponent