Package com.microstrategy.utils

Class EncryptionUtil

java.lang.Object

com.microstrategy.utils.EncryptionUtil

public class EncryptionUtil
extends java.lang.Object

Utility class for Encryption

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	MD5_ALGORITHM
static java.lang.String	SHA1_ALGORITHM
static java.lang.String	SHA256_ALGORITHM
static java.lang.String	SUPPORT_SEAMLESS_LOGIN_COMPATIBILITY

Constructor Summary

Constructors

Constructor	Description
EncryptionUtil()

Method Summary

Modifier and Type	Method	Description
static byte[]	decrypt(java.lang.String base64EncryptedStringValue, java.lang.String key)
static java.lang.String	decryptToString(java.lang.String base64EncryptedStringValue, java.lang.String key)
static byte[]	encrypt(java.lang.String dataToEncrypt, java.lang.String key)	Encrypts the given data
static java.lang.String	encryptToBase64String(java.lang.String dataToEncrypt, java.lang.String key)	Encrypts and returns base64 encoded String
static java.lang.String	printHexBinary(byte[] data)	Converts byte[] to hex String Copy of javax.xml.bind.DatatypeConverter (Lower case letter though)
static java.lang.String	sha256Hex(java.lang.String data)	Calculates the SHA-256 digest and returns the value as a hex string.

Methods inherited from class java.lang.Object

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

Field Detail

MD5_ALGORITHM

public static java.lang.String MD5_ALGORITHM

SHA256_ALGORITHM

public static java.lang.String SHA256_ALGORITHM

SHA1_ALGORITHM

public static java.lang.String SHA1_ALGORITHM

SUPPORT_SEAMLESS_LOGIN_COMPATIBILITY

public static java.lang.String SUPPORT_SEAMLESS_LOGIN_COMPATIBILITY

Constructor Detail

EncryptionUtil

public EncryptionUtil()

Method Detail

encrypt

public static byte[] encrypt(java.lang.String dataToEncrypt,
                             java.lang.String key)
                      throws java.security.NoSuchAlgorithmException,
                             javax.crypto.NoSuchPaddingException,
                             java.security.InvalidKeyException,
                             javax.crypto.IllegalBlockSizeException,
                             javax.crypto.BadPaddingException

Encrypts the given data

Parameters:

dataToEncrypt -

key -

Returns:

Throws:

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

java.security.InvalidKeyException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

encryptToBase64String

public static java.lang.String encryptToBase64String(java.lang.String dataToEncrypt,
                                                     java.lang.String key)
                                              throws java.security.NoSuchAlgorithmException,
                                                     javax.crypto.NoSuchPaddingException,
                                                     java.security.InvalidKeyException,
                                                     javax.crypto.IllegalBlockSizeException,
                                                     javax.crypto.BadPaddingException

Encrypts and returns base64 encoded String

Parameters:

dataToEncrypt -

key -

Returns:

Throws:

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

java.security.InvalidKeyException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

decrypt

public static byte[] decrypt(java.lang.String base64EncryptedStringValue,
                             java.lang.String key)
                      throws java.security.NoSuchAlgorithmException,
                             javax.crypto.NoSuchPaddingException,
                             java.security.InvalidKeyException,
                             javax.crypto.IllegalBlockSizeException,
                             javax.crypto.BadPaddingException

Parameters:

base64EncryptedStringValue - Previously Encrypted base64EncodedString

key -

Returns:

Throws:

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

java.security.InvalidKeyException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

decryptToString

public static java.lang.String decryptToString(java.lang.String base64EncryptedStringValue,
                                               java.lang.String key)
                                        throws java.security.NoSuchAlgorithmException,
                                               javax.crypto.NoSuchPaddingException,
                                               java.security.InvalidKeyException,
                                               javax.crypto.IllegalBlockSizeException,
                                               javax.crypto.BadPaddingException

Parameters:

base64EncryptedStringValue - Previously Encrypted base64EncodedString

hashKey -

keySpecAlgorithm - ex. AES, DES etc.

cipherAlgorithm - ex. "AES/ECB/PKCS5Padding". Refer to https://docs.oracle.com/javase/8/docs/api/javax/crypto/Cipher.html Limited modes & padding supported( as for ex. CBC mode requires additional parameters to be provided. and not supported here)

Returns:

Throws:

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

java.security.InvalidKeyException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

printHexBinary

public static java.lang.String printHexBinary(byte[] data)

Converts byte[] to hex String Copy of javax.xml.bind.DatatypeConverter (Lower case letter though)

Parameters:

data -

Returns:

sha256Hex

public static java.lang.String sha256Hex(java.lang.String data)

Calculates the SHA-256 digest and returns the value as a hex string.

Parameters:

data - Data to digest

Returns:

SHA-256 digest as a hex string