Package com.mku.salmon.text

Class TextEncryptor

java.lang.Object

com.mku.salmon.text.TextEncryptor

public class TextEncryptor
extends Object

Utility class that encrypts text strings.

Constructor Summary

Constructors

Constructor	Description
TextEncryptor()

Method Summary

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

TextEncryptor

public TextEncryptor()

Method Details

encryptString

public static String encryptString(String text,
 byte[] key,
 byte[] nonce)
                            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.

Returns:

The encrypted string

Throws:

IOException - Thrown if there is an IO error.

SecurityException - 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,
 EncryptionFormat format)
                            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.

format - The format to use, see EncryptionFormat

Returns:

The encrypted string

Throws:

IOException - Thrown if there is an IO error.

SecurityException - 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,
 EncryptionFormat format,
 boolean integrity,
 byte[] hashKey,
 int 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.

format - The format to use, see EncryptionFormat

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.

SecurityException - 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.