Package org.bouncycastle.jce

Class ECKeyUtil

  • public class ECKeyUtil
extends java.lang.Object
    Utility class to allow conversion of EC key parameters to explicit from named curves and back (where possible).

    • Constructor Summary

      Constructors 
      Constructor Description
      ECKeyUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.security.PrivateKey privateToExplicitParameters​(java.security.PrivateKey key, java.lang.String providerName)
      Convert a passed in private EC key to have explicit parameters.
      static java.security.PrivateKey privateToExplicitParameters​(java.security.PrivateKey key, java.security.Provider provider)
      Convert a passed in private EC key to have explicit parameters.
      static java.security.PublicKey publicToExplicitParameters​(java.security.PublicKey key, java.lang.String providerName)
      Convert a passed in public EC key to have explicit parameters.
      static java.security.PublicKey publicToExplicitParameters​(java.security.PublicKey key, java.security.Provider provider)
      Convert a passed in public EC key to have explicit parameters.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • ECKeyUtil

        public ECKeyUtil()

    • Method Detail

      • publicToExplicitParameters

        public static java.security.PublicKey publicToExplicitParameters​(java.security.PublicKey key,
                                                                 java.lang.String providerName)
                                                          throws java.lang.IllegalArgumentException,
                                                                 java.security.NoSuchAlgorithmException,
                                                                 java.security.NoSuchProviderException
        Convert a passed in public EC key to have explicit parameters. If the key is already using explicit parameters it is returned.
        Parameters:
        key - key to be converted
        providerName - provider name to be used.
        Returns:
        the equivalent key with explicit curve parameters
        Throws:
        java.lang.IllegalArgumentException
        java.security.NoSuchAlgorithmException
        java.security.NoSuchProviderException

      • publicToExplicitParameters

        public static java.security.PublicKey publicToExplicitParameters​(java.security.PublicKey key,
                                                                 java.security.Provider provider)
                                                          throws java.lang.IllegalArgumentException,
                                                                 java.security.NoSuchAlgorithmException
        Convert a passed in public EC key to have explicit parameters. If the key is already using explicit parameters it is returned.
        Parameters:
        key - key to be converted
        provider - provider to be used.
        Returns:
        the equivalent key with explicit curve parameters
        Throws:
        java.lang.IllegalArgumentException
        java.security.NoSuchAlgorithmException

      • privateToExplicitParameters

        public static java.security.PrivateKey privateToExplicitParameters​(java.security.PrivateKey key,
                                                                   java.lang.String providerName)
                                                            throws java.lang.IllegalArgumentException,
                                                                   java.security.NoSuchAlgorithmException,
                                                                   java.security.NoSuchProviderException
        Convert a passed in private EC key to have explicit parameters. If the key is already using explicit parameters it is returned.
        Parameters:
        key - key to be converted
        providerName - provider name to be used.
        Returns:
        the equivalent key with explicit curve parameters
        Throws:
        java.lang.IllegalArgumentException
        java.security.NoSuchAlgorithmException
        java.security.NoSuchProviderException

      • privateToExplicitParameters

        public static java.security.PrivateKey privateToExplicitParameters​(java.security.PrivateKey key,
                                                                   java.security.Provider provider)
                                                            throws java.lang.IllegalArgumentException,
                                                                   java.security.NoSuchAlgorithmException
        Convert a passed in private EC key to have explicit parameters. If the key is already using explicit parameters it is returned.
        Parameters:
        key - key to be converted
        provider - provider to be used.
        Returns:
        the equivalent key with explicit curve parameters
        Throws:
        java.lang.IllegalArgumentException
        java.security.NoSuchAlgorithmException