```
public class PrivateKey
extends AbstractKey
```
PrivateKey is an X25519 private key wrapper (64 bytes).

Field Summary
- Fields inherited from class com.github.katenachain.crypto.AbstractKey
  key

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PublicKey`	`getPublicKey()`
`byte[]`	`open(byte[] encryptedMessage, PublicKey senderPublicKey, byte[] nonce)`	decrypts an encrypted message with the appropriate sender information.
`Hashtable<String,byte[]>`	`seal(byte[] message, PublicKey recipientPublicKey)`	encrypts a plain text message decipherable afterwards by the recipient private key.

public Hashtable<String,byte[]> seal(byte[] message,
                                           PublicKey recipientPublicKey)

encrypts a plain text message decipherable afterwards by the recipient private key.

public byte[] open(byte[] encryptedMessage,
                   PublicKey senderPublicKey,
                   byte[] nonce)

decrypts an encrypted message with the appropriate sender information.

Constructor	Description
`PrivateKey(byte[] key)`	PrivateKey constructor with byte[].
`PrivateKey(String privateKeyBase64)`	PrivateKey constructor with base64 String.

Class PrivateKey