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## org.bouncycastle.pqc.crypto.ntru
Class NTRUKEMExtractor

    java.lang.Object
      org.bouncycastle.pqc.crypto.ntru.NTRUKEMExtractor

All Implemented Interfaces:
  EncapsulatedSecretExtractor

public class NTRUKEMExtractor
extends java.lang.Object
implements EncapsulatedSecretExtractor

NTRU secret encapsulation extractor.

Constructor Summary
`NTRUKEMExtractor(NTRUPrivateKeyParameters ntruPrivateKey)` Constructor.

Method Summary
`byte[]` | `extractSecret(byte[] encapsulation)` Extract the secret based on the recipient private key.
`int` | `getEncapsulationLength()` Return the length in bytes of the encapsulation.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### NTRUKEMExtractor

    public NTRUKEMExtractor(NTRUPrivateKeyParameters ntruPrivateKey)

  Constructor. an NTRU parameter

Parameters:
  `ntruPrivateKey` - private key used to encapsulate the secret

Method Detail

### extractSecret

    public byte[] extractSecret(byte[] encapsulation)

  Description copied from interface: `EncapsulatedSecretExtractor`
  Extract the secret based on the recipient private key.

  Specified by:
    `extractSecret` in interface `EncapsulatedSecretExtractor`
  Parameters:
    `encapsulation` - the encapsulated secret.

### getEncapsulationLength

    public int getEncapsulationLength()

  Description copied from interface: `EncapsulatedSecretExtractor`
  Return the length in bytes of the encapsulation.

  Specified by:
    `getEncapsulationLength` in interface `EncapsulatedSecretExtractor`
  Returns:
    length in bytes of an encapsulation for this parameter set.

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