Package org.conscrypt

Class OpenSSLECDHKeyAgreement

java.lang.Object
javax.crypto.KeyAgreementSpi
org.conscrypt.OpenSSLECDHKeyAgreement
public final class OpenSSLECDHKeyAgreement
extends KeyAgreementSpi
Elliptic Curve Diffie-Hellman key agreement backed by the OpenSSL engine.

  • Constructor Details

    • OpenSSLECDHKeyAgreement

      public OpenSSLECDHKeyAgreement()

  • Method Details

    • engineDoPhase

      public Key engineDoPhase​(Key key, boolean lastPhase) throws InvalidKeyException
      Description copied from class: KeyAgreementSpi
      Does the next (or the last) phase of the key agreement, using the specified key.
      Specified by:
      engineDoPhase in class KeyAgreementSpi
      Parameters:
      key - the key received from the other party for this phase.
      lastPhase - set to true if this is the last phase of this key agreement.
      Returns:
      the intermediate key from this phase or null if there is no intermediate key for this phase.
      Throws:
      InvalidKeyException - if the specified key cannot be used in this key agreement or this phase,

    • engineGenerateSecret

      protected int engineGenerateSecret​(byte[] sharedSecret, int offset) throws ShortBufferException
      Description copied from class: KeyAgreementSpi
      Generates the shared secret and stores it into the buffer sharedSecred at offset.
      Specified by:
      engineGenerateSecret in class KeyAgreementSpi
      Parameters:
      sharedSecret - the buffer to store the shared secret.
      offset - the offset in the buffer.
      Returns:
      the number of bytes stored in the buffer.
      Throws:
      ShortBufferException - if the specified buffer is too small for the shared secret.

    • engineGenerateSecret

      protected byte[] engineGenerateSecret()
      Description copied from class: KeyAgreementSpi
      Generates the shared secret.
      Specified by:
      engineGenerateSecret in class KeyAgreementSpi
      Returns:
      the generated shared secret.

    • engineGenerateSecret

      protected SecretKey engineGenerateSecret​(String algorithm)
      Description copied from class: KeyAgreementSpi
      Generates the shared secret.
      Specified by:
      engineGenerateSecret in class KeyAgreementSpi
      Parameters:
      algorithm - the algorithm to for the SecretKey
      Returns:
      the shared secret as a SecretKey of the specified algorithm.

    • engineInit

      protected void engineInit​(Key key, SecureRandom random) throws InvalidKeyException
      Description copied from class: KeyAgreementSpi
      Initializes this KeyAgreementSpi with the specified key and the specified randomness source.
      Specified by:
      engineInit in class KeyAgreementSpi
      Parameters:
      key - the key to initialize this key agreement.
      random - the source for any randomness needed.
      Throws:
      InvalidKeyException - if the specified key cannot be used to initialize this key agreement.

    • engineInit

      protected void engineInit​(Key key, AlgorithmParameterSpec params, SecureRandom random) throws InvalidKeyException, InvalidAlgorithmParameterException
      Description copied from class: KeyAgreementSpi
      Initializes this KeyAgreementSpi with the specified key, algorithm parameters and randomness source.
      Specified by:
      engineInit in class KeyAgreementSpi
      Parameters:
      key - the key to initialize this key agreement.
      params - the parameters for this key agreement algorithm.
      random - the source for any randomness needed.
      Throws:
      InvalidKeyException - if the specified key cannot be used to initialize this key agreement.
      InvalidAlgorithmParameterException - if the specified parameters are invalid for this key agreement algorithm.