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## org.bouncycastle.crypto.hpke
Class HPKEContext

    java.lang.Object
      org.bouncycastle.crypto.hpke.HPKEContext

Direct Known Subclasses:
  HPKEContextWithEncapsulation

public class HPKEContext
extends java.lang.Object

Field Summary
`protected AEAD` | `aead`
`protected byte[]` | `exporterSecret`
`protected org.bouncycastle.crypto.hpke.HKDF` | `hkdf`
`protected byte[]` | `suiteId`

Method Summary
`byte[]` | `expand(byte[] prk, byte[] info, int L)`
`byte[]` | `export(byte[] exportContext, int L)`
`byte[]` | `extract(byte[] salt, byte[] ikm)`
`byte[]` | `open(byte[] aad, byte[] ct)`
`byte[]` | `open(byte[] aad, byte[] ct, int ctOffset, int ctLength)`
`byte[]` | `seal(byte[] aad, byte[] message)`
`byte[]` | `seal(byte[] aad, byte[] pt, int ptOffset, int ptLength)`

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

Field Detail

### aead

    protected final AEAD aead

### hkdf

    protected final org.bouncycastle.crypto.hpke.HKDF hkdf

### exporterSecret

    protected final byte[] exporterSecret

### suiteId

    protected final byte[] suiteId

Method Detail

### export

    public byte[] export(byte[] exportContext,
                         int L)

### seal

    public byte[] seal(byte[] aad,
                       byte[] message)
                throws InvalidCipherTextException

  Throws:
    `InvalidCipherTextException`

### seal

    public byte[] seal(byte[] aad,
                       byte[] pt,
                       int ptOffset,
                       int ptLength)
                throws InvalidCipherTextException

  Throws:
    `InvalidCipherTextException`

### open

    public byte[] open(byte[] aad,
                       byte[] ct)
                throws InvalidCipherTextException

  Throws:
    `InvalidCipherTextException`

### open

    public byte[] open(byte[] aad,
                       byte[] ct,
                       int ctOffset,
                       int ctLength)
                throws InvalidCipherTextException

  Throws:
    `InvalidCipherTextException`

### extract

    public byte[] extract(byte[] salt,
                          byte[] ikm)

### expand

    public byte[] expand(byte[] prk,
                         byte[] info,
                         int L)

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