Package org.bouncycastle

Class CachingBcPublicKeyDataDecryptorFactory

java.lang.Object
org.bouncycastle.openpgp.operator.bc.BcPublicKeyDataDecryptorFactory
org.bouncycastle.CachingBcPublicKeyDataDecryptorFactory
All Implemented Interfaces:
org.bouncycastle.openpgp.operator.PGPDataDecryptorFactory, org.bouncycastle.openpgp.operator.PublicKeyDataDecryptorFactory, CustomPublicKeyDataDecryptorFactory
public class CachingBcPublicKeyDataDecryptorFactory extends org.bouncycastle.openpgp.operator.bc.BcPublicKeyDataDecryptorFactory implements CustomPublicKeyDataDecryptorFactory
Implementation of the PublicKeyDataDecryptorFactory which caches decrypted session keys. That way, if a message needs to be decrypted multiple times, expensive private key operations can be omitted. This implementation changes the behavior or recoverSessionData(int, byte[][]) to first return any cache hits. If no hit is found, the method call is delegated to the underlying PublicKeyDataDecryptorFactory. The result of that is then placed in the cache and returned.

  • Constructor Details

    • CachingBcPublicKeyDataDecryptorFactory

      public CachingBcPublicKeyDataDecryptorFactory(org.bouncycastle.openpgp.PGPPrivateKey privateKey, SubkeyIdentifier decryptionKey)

  • Method Details

    • recoverSessionData

      public byte[] recoverSessionData(int keyAlgorithm, byte[][] secKeyData) throws org.bouncycastle.openpgp.PGPException
      Specified by:
      recoverSessionData in interface org.bouncycastle.openpgp.operator.PublicKeyDataDecryptorFactory
      Overrides:
      recoverSessionData in class org.bouncycastle.openpgp.operator.bc.BcPublicKeyDataDecryptorFactory
      Throws:
      org.bouncycastle.openpgp.PGPException

    • costlyRecoverSessionData

      public byte[] costlyRecoverSessionData(int keyAlgorithm, byte[][] secKeyData) throws org.bouncycastle.openpgp.PGPException
      Throws:
      org.bouncycastle.openpgp.PGPException

    • clear

      public void clear()

    • getSubkeyIdentifier

      public SubkeyIdentifier getSubkeyIdentifier()
      Description copied from interface: CustomPublicKeyDataDecryptorFactory
      Return the SubkeyIdentifier for which this particular CustomPublicKeyDataDecryptorFactory is intended.
      Specified by:
      getSubkeyIdentifier in interface CustomPublicKeyDataDecryptorFactory
      Returns:
      subkey identifier