AesCtrJceCipher

java.lang.Object
- com.google.crypto.tink.subtle.AesCtrJceCipher

All Implemented Interfaces:

IndCpaCipher
```
public final class AesCtrJceCipher
extends java.lang.Object
implements IndCpaCipher
```
The primitive implements AES counter mode with random IVs, using JCE.
Warning

It is safe against chosen-plaintext attacks, but does not provide ciphertext integrity, thus is unsafe against chosen-ciphertext attacks.

Since:

1.0.0

Field Summary

Fields
Modifier and Type Field Description

static TinkFipsUtil.AlgorithmFipsCompatibility FIPS

Constructor Summary

Constructors
Constructor Description

AesCtrJceCipher(byte[] key, int ivSize)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`byte[]`	`decrypt(byte[] ciphertext)`	Decrypts the ciphertext with counter mode decryption.
`byte[]`	`encrypt(byte[] plaintext)`	Encrypts the plaintext with counter mode encryption using randomly generated iv.

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

- Field Detail
  - FIPS
```
public static final TinkFipsUtil.AlgorithmFipsCompatibility FIPS
```
- Constructor Detail
  - AesCtrJceCipher
```
public AesCtrJceCipher(byte[] key,
                       int ivSize)
                throws java.security.GeneralSecurityException
```
    Throws:
    
    java.security.GeneralSecurityException
- Method Detail
  - encrypt
```
public byte[] encrypt(byte[] plaintext)
               throws java.security.GeneralSecurityException
```
    Encrypts the plaintext with counter mode encryption using randomly generated iv. The output format is iv || raw ciphertext.
    
    Specified by:
    
    encrypt in interface IndCpaCipher
    
    Parameters:
    
    plaintext - the plaintext to be encrypted.
    
    Returns:
    
    the encryption of plaintext.
    
    Throws:
    
    java.security.GeneralSecurityException
  - decrypt
```
public byte[] decrypt(byte[] ciphertext)
               throws java.security.GeneralSecurityException
```
    Decrypts the ciphertext with counter mode decryption. The ciphertext format is iv || raw ciphertext.
    
    Specified by:
    
    decrypt in interface IndCpaCipher
    
    Parameters:
    
    ciphertext - the ciphertext to be decrypted.
    
    Returns:
    
    the decrypted plaintext.
    
    Throws:
    
    java.security.GeneralSecurityException