PrivateKey (sdk-java 1.0 API)

java.lang.Object
- com.github.katenachain.crypto.AbstractKey
- - com.github.katenachain.crypto.Nacl.PrivateKey

```
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

Constructor Summary

Constructors
Constructor Description

PrivateKey(byte[] key)
PrivateKey constructor with byte[].

PrivateKey(String privateKeyBase64)
PrivateKey constructor with String.

Method Summary

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

Methods inherited from class com.github.katenachain.crypto.AbstractKey
getKey

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

- Constructor Detail
  - PrivateKey
```
public PrivateKey(byte[] key)
```
    PrivateKey constructor with byte[].
    
    Parameters:
    
    key - byte[]
  - PrivateKey
```
public PrivateKey(String privateKeyBase64)
```
    PrivateKey constructor with String.
    
    Parameters:
    
    privateKeyBase64 - String
- Method Detail
  - seal
```
public Hashtable<String,byte[]> seal(byte[] message,
                                           PublicKey publicKey)
```
    encrypts a plain text message decipherable afterwards by the recipient private key.
    
    Parameters:
    
    message - byte[]
    
    publicKey - PublicKey
    
    Returns:
    
    Hashtable hashtable
  - open
```
public byte[] open(byte[] encryptedMessage,
                   PublicKey senderPublicKey,
                   byte[] nonce)
```
    decrypts an encrypted message with the appropriate sender information.
    
    Parameters:
    
    encryptedMessage - byte[]
    
    senderPublicKey - PublicKey
    
    nonce - byte[]
    
    Returns:
    
    byte[] byte [ ]
  - getPublicKey
```
public PublicKey getPublicKey()
```
    PublicKey getter
    
    Returns:
    
    PublicKey public key