SEALClient (Apache SystemDS 3.0.0 API)

java.lang.Object
- org.apache.sysds.runtime.controlprogram.paramserv.homomorphicEncryption.SEALClient

```
public class SEALClient
extends Object
```

Constructor Summary

Constructors
Constructor Description

SEALClient(byte[] a)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CiphertextMatrix`	`encrypt(MatrixObject plaintext)`	encrypts one block of data with public key stored statically and returns it setPublicKey() must have been called before calling this
`PublicKey`	`generatePartialPublicKey()`	generates a partial public key stores a partial private key corresponding to the partial public key in ctx
`PlaintextMatrix`	`partiallyDecrypt(CiphertextMatrix ciphertext)`	partially decrypts ciphertext with the partial private key.
`void`	`setPublicKey(PublicKey public_key)`	sets the public key and stores it in ctx

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

- Constructor Detail
  - SEALClient
```
public SEALClient(byte[] a)
```
- Method Detail
  - generatePartialPublicKey
```
public PublicKey generatePartialPublicKey()
```
    generates a partial public key stores a partial private key corresponding to the partial public key in ctx
    
    Returns:
    
    the partial public key
  - setPublicKey
```
public void setPublicKey(PublicKey public_key)
```
    sets the public key and stores it in ctx
    
    Parameters:
    
    public_key - the public key to set
  - encrypt
```
public CiphertextMatrix encrypt(MatrixObject plaintext)
```
    encrypts one block of data with public key stored statically and returns it setPublicKey() must have been called before calling this
    
    Parameters:
    
    plaintext - the MatrixObject to encrypt
    
    Returns:
    
    the encrypted matrix
  - partiallyDecrypt
```
public PlaintextMatrix partiallyDecrypt(CiphertextMatrix ciphertext)
```
    partially decrypts ciphertext with the partial private key. generatePartialPublicKey() must have been called before calling this function
    
    Parameters:
    
    ciphertext - the ciphertext to partially decrypt
    
    Returns:
    
    the partial decryption of ciphertext