Package com.mku.salmon.text

Class SalmonTextEncryptor

java.lang.Object

com.mku.salmon.text.SalmonTextEncryptor

public class SalmonTextEncryptor
extends Object

Utility class that encrypts and decrypts text strings.

Constructor Summary

Constructors

Constructor	Description
SalmonTextEncryptor()

Method Summary

Modifier and Type	Method	Description
static String	encryptString(String text, byte[] key, byte[] nonce, boolean header)	Encrypts a text String using AES256 with the key and nonce provided.
static String	encryptString(String text, byte[] key, byte[] nonce, boolean header, boolean integrity, byte[] hashKey, Integer chunkSize)	Encrypts a text String using AES256 with the key and nonce provided.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SalmonTextEncryptor

public SalmonTextEncryptor()

Method Details

encryptString

public static String encryptString(String text,
 byte[] key,
 byte[] nonce,
 boolean header)
                            throws IOException

Encrypts a text String using AES256 with the key and nonce provided.

Parameters:

text - Text to be encrypted.

key - The encryption key to be used.

nonce - The nonce to be used.

header - Set to true to store a header with information like nonce and/or chunk size, otherwise you will have to store that information externally.

Returns:

The encrypted string

Throws:

IOException - Thrown if there is an IO error.

SalmonSecurityException - Thrown if there is a security exception

IntegrityException - Thrown if the data are corrupt or tampered with.

IOException - Thrown if there is an IO error.

encryptString

public static String encryptString(String text,
 byte[] key,
 byte[] nonce,
 boolean header,
 boolean integrity,
 byte[] hashKey,
 Integer chunkSize)
                            throws IOException

Encrypts a text String using AES256 with the key and nonce provided.

Parameters:

text - Text to be encrypted.

key - The encryption key to be used.

nonce - The nonce to be used.

header - Set to true to store a header with information like nonce and/or chunk size, otherwise you will have to store that information externally.

integrity - True if you want to calculate and store hash signatures for each chunkSize

hashKey - Hash key to be used for all chunks.

chunkSize - The chunk size.

Returns:

The encrypted string.

Throws:

IOException - Thrown if there is an IO error.

SalmonSecurityException - Thrown if there is a security exception

IntegrityException - Thrown if the data are corrupt or tampered with.

IOException - Thrown if there is an IO error.