private static byte[] scanKeyFile(CryptobyConsole console)
{
scanner = new Scanner(java.lang.System.@in);
byte[] tempKey = null;
do
{
Console.Out.WriteLine("\nAllowed Key Sizes 128,192 and 256 Bit.");
Console.Out.WriteLine("Enter Path to Key File (Type '" + quit + "' to Escape):"
);
if (scanner.hasNext(quit))
{
aesCrypterFile(console);
}
keyPath = scanner.next();
try
{
tempKey = CryptobyFileManager.getKeyFromFile(keyPath);
}
catch (System.IO.IOException)
{
CryptobyHelper.printIOExp();
aesCrypterFile(console);
}
catch (FormatException)
{
Console.Out.WriteLine("Key File format is not correct!");
aesCrypterFile(console);
}
keySize = tempKey.Length * 4;
}while (keySize != 128 && keySize != 192 && keySize != 256);
return(tempKey);
}
public virtual void testRSACrypt1024false()
{
System.Console.Out.WriteLine("RSACrypt1024false");
int keySize = 1024;
CryptobyClient client = new CryptobyClient();
CryptobyCore core = new CryptobyCore(client);
KeyGenRSA generator = new KeyGenRSA(core);
generator.initGenerator(keySize);
byte[] plainInput = Encoding.UTF8.GetBytes("Text to Test for Testing from Tester by Testcase"
);
string publicKeyString = generator.getPublicKey();
byte[] publicKey = CryptobyHelper.hexStringToBytes(publicKeyString);
generator.initGenerator(keySize);
string privateKeyString = generator.getPrivateKey();
byte[] privateKey = CryptobyHelper.hexStringToBytes(privateKeyString);
CryptRSA rsa = new CryptRSA();
byte[] expResult = plainInput;
byte[] result = rsa.encrypt(plainInput, publicKey);
result = rsa.decrypt(result, privateKey);
NUnit.Framework.Assert.IsFalse(Arrays.equals(expResult, result));
}
private static void aesEncrypterText(CryptobyConsole console)
{
scanner = new Scanner(java.lang.System.@in);
scanner.useDelimiter("\n");
// Input your String Text to encrypt
Console.Out.WriteLine("\nYour Text to encrypt (Type '" + quit + "' to Escape):"
);
if (scanner.hasNext(quit))
{
aesCrypterText(console);
}
plainByte = Encoding.UTF8.GetBytes(scanner.next());
// Input your Key for encryption
key = scanKeyText(console);
// Initial AES Crypt Object
initAESKeyGen(console);
// Encrypt the String Text with given Key
Console.Out.WriteLine("\nEncrypting in progress...");
cryptByte = console.getCore().getCryptSym().encrypt(plainByte, key);
// Convert byte Array into a Hexcode String
charTextHex = CryptobyHelper.bytesToHexStringUpper(cryptByte).ToCharArray();
// Print encrypted Text in Hex Block form
Console.Out.WriteLine("\nEncryption successfull...");
Console.Out.WriteLine(CryptobyHelper.printHexBlock("AES", keySize, charTextHex
));
// Back to Text Crypter Menu
Console.Out.WriteLine("\nGo back to AES Text Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
aesCrypterText(console);
}
private void generateKeys(int keyBitSize)
{
keyByteSize = keyBitSize / 8;
do
{
// Generate Primes for Q and P
// Use Cores parallel, if there are more than 1
if (cores > 1)
{
do
{
BigInteger[] primes = getPrimesParallel(keyBitSize);
p = primes[0];
q = primes[1];
}while (p.compareTo(q) == 0);
}
else
{
do
{
p = getPrimesParallel(keyBitSize)[0];
q = getPrimesParallel(keyBitSize)[0];
log2ofPQ = java.lang.Math.abs(CryptobyHelper.logBigInteger(p) - CryptobyHelper.logBigInteger
(q));
}while (log2ofPQ <= 0.1 || log2ofPQ >= 30);
}
// Calculate n Module
calcN();
// Calculate Phi Module
calcPhi();
// Calculate D Module
calcD();
}while (n.toByteArray().Length != (keyByteSize) || d.toByteArray().Length != (keyByteSize
));
}
/// <summary>Method convert public key String to block format and add a title.</summary>
/// <remarks>Method convert public key String to block format and add a title.</remarks>
/// <param name="publicKey">String converted to char array and than to block String</param>
/// <returns>Return block String of publicKey</returns>
public static string printPublicKeyBlock(string publicKey)
{
java.lang.StringBuilder sb = new java.lang.StringBuilder();
sb.append("\nPublic Key:\n");
sb.append(CryptobyHelper.charToBlockString(publicKey.ToCharArray()));
sb.append(EOB);
return(sb.ToString());
}
public virtual void testPrintPublicKeyBlock()
{
System.Console.Out.WriteLine("printPublicKeyBlock");
string publicKey = "TestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTest";
string result = CryptobyHelper.printPublicKeyBlock(publicKey);
System.Console.Out.WriteLine(result);
}
/// <summary>Generate a SHA3 Hash/Key depend on password input as String.</summary>
/// <remarks>Generate a SHA3 Hash/Key depend on password input as String.</remarks>
/// <param name="keySize">Size of hash. Allowed are 224, 256, 384 and 512.</param>
/// <param name="password">String password which will be hashed</param>
/// <returns>SHA3 hash as Hex String</returns>
public virtual string generateKey(int keySize, string password)
{
byte[] bytePW = Encoding.UTF8.GetBytes(password);
KeyGenSHA3.init(keySize);
KeyGenSHA3.update(bytePW, bytePW.Length * 8);
string output = CryptobyHelper.bytesToHexString(KeyGenSHA3.getHash());
return(output);
}
/// <summary>This method load a key file from disk to byte array.</summary>
/// <remarks>
/// This method load a key file from disk to byte array. They key in the file
/// must be in Hex String Block format which will be merged and converted
/// from hex String to byte array as output.
/// </remarks>
/// <param name="filePath">Path to key file which bytes will be loaded</param>
/// <returns>Byte array of hex string in filePath</returns>
/// <exception cref="System.IO.IOException">
/// If file not found or other IO problems there will be
/// throw an IOException
/// </exception>
public static byte[] getKeyFromFile(string filePath)
{
StreamReader streamReader = new StreamReader(filePath);
string sb = streamReader.ReadToEnd();
streamReader.Close();
System.Console.WriteLine(CryptobyHelper.hexStringToBytes(sb));
return(CryptobyHelper.hexStringToBytes(sb));
}
private static void rsaDecrypterText(CryptobyConsole console)
{
scanner = new Scanner(java.lang.System.@in);
// Input encrypted Hex String Text to decrypt
Console.Out.WriteLine("\nYour Text to decrypt (Type '" + quit + "' to Escape):"
);
// Convert crypted HexString Block to one String
try
{
string cryptText = string.Empty;
while (!scanner.hasNext(CryptobyHelper.getEOBString()))
{
if (scanner.hasNext(quit))
{
rsaCrypterText(console);
}
cryptText = cryptText + scanner.next();
}
cryptByte = CryptobyHelper.hexStringToBytes(cryptText);
}
catch (FormatException)
{
// Catch false format of Input
Console.Out.WriteLine("\nNot allowed Crypted Text! Must be a Upper Hex String!"
);
cryptByte = BigInteger.ZERO.toByteArray();
}
// Input the Private Key
privateKeyByte = scanPrivateKey(console);
// Initial RSA Crypt Object
initRSAKeyGen(console);
// Decrypt the String Text with given Key
Console.Out.WriteLine("\nDecryption in progress...");
try
{
plainByte = console.getCore().getCryptAsym().decrypt(cryptByte, privateKeyByte);
}
catch (Exception)
{
Console.Out.WriteLine("\nUnable to decrypt this String!!");
plainByte = null;
// Press Return for Continues
CryptobyHelper.pressEnter();
rsaCrypterText(console);
}
Console.Out.WriteLine("\nDecryption finished...");
// Print decrypted Text
Console.Out.WriteLine("\nRSA-" + keySize + " decrypted Text:");
Console.Out.WriteLine(Encoding.UTF8.GetString(plainByte));
// Reset RSA Crypt Object to release Memory
initRSAKeyGen(console);
// Back to Menu rsaCrypter with Enter (Return) Key
Console.Out.WriteLine("\nGo back to RSA Text Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
rsaCrypterText(console);
}
/// <summary>
/// Method merge inputs and add a title to return String which can print
/// encrypted text and title in User Interfaces.
/// </summary>
/// <remarks>
/// Method merge inputs and add a title to return String which can print
/// encrypted text and title in User Interfaces.
/// </remarks>
/// <param name="cryptType">Type of cryptology implementation as String</param>
/// <param name="inputKeySize">Size of used key as integer</param>
/// <param name="inputCharTextHex">
/// Char array of String which will be converted to
/// block
/// </param>
/// <returns>Return String of merged input parameter and text</returns>
public static string printHexBlock(string cryptType, int inputKeySize, char[] inputCharTextHex
)
{
java.lang.StringBuilder sb = new java.lang.StringBuilder();
sb.append("\n").append(cryptType).append("-").append(inputKeySize).append(" encrypted Text in Hex form (Copy with '"
+ EOB + "'):\n");
sb.append(CryptobyHelper.charToBlockString(inputCharTextHex));
sb.append(EOB);
return(sb.ToString());
}
public virtual void testCharToBlockString()
{
System.Console.Out.WriteLine("charToBlockString");
byte[] cryptByte = Encoding.UTF8.GetBytes("TestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTest"
);
char[] charTextHex = CryptobyHelper.bytesToHexStringUpper(cryptByte).ToCharArray(
);
string result = CryptobyHelper.charToBlockString(charTextHex);
System.Console.Out.WriteLine(result);
}
private static void aesDecrypterText(CryptobyConsole console)
{
scanner = new Scanner(java.lang.System.@in);
// Input encrypted Hex String Text to decrypt
Console.Out.WriteLine("\nYour Text to decrypt (Type '" + quit + "' to Escape):"
);
// Convert crypted HexString Block to one String
try
{
string cryptText = string.Empty;
while (!scanner.hasNext(CryptobyHelper.getEOBString()))
{
if (scanner.hasNext(quit))
{
aesCrypterText(console);
}
cryptText = cryptText + scanner.next();
}
cryptByte = CryptobyHelper.hexStringToBytes(cryptText);
}
catch (FormatException)
{
// Catch false format of Input
Console.Out.WriteLine("\nNot allowed Crypted Text! Must be a Upper Hex String!"
);
cryptByte = BigInteger.ZERO.toByteArray();
}
// Input your Key for encryption
key = scanKeyText(console);
// Initial AES Crypt Object
initAESKeyGen(console);
// Decrypt the String Text with given Key
Console.Out.WriteLine("\nDecrypting in progress...");
try
{
plainByte = console.getCore().getCryptSym().decrypt(cryptByte, key);
}
catch (Exception)
{
Console.Out.WriteLine("\nUnable to decrypt this String!!");
// Enter for Continues
CryptobyHelper.pressEnter();
aesCrypterText(console);
}
// Print decrypted Text
Console.Out.WriteLine("\nDecryption finished...");
Console.Out.WriteLine("\nAES-" + keySize + " decrypted Text:");
Console.Out.WriteLine(Encoding.UTF8.GetString(plainByte));
// Back to Text Crypter Menu
Console.Out.WriteLine("\nGo back to AES Text Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
aesCrypterText(console);
}
/// <summary>Generate a random SHA3 Hash/Key as String.</summary>
/// <remarks>Generate a random SHA3 Hash/Key as String.</remarks>
/// <param name="keySize">Size of hash. Allowed are 224, 256, 384 and 512.</param>
/// <returns>SHA3 hash as Hex String</returns>
public virtual string generateKey(int keySize)
{
SecureRandom scRandom = new SecureRandom();
byte[] randomPW = new byte[40];
scRandom.nextBytes(randomPW);
KeyGenSHA3.init(keySize);
KeyGenSHA3.update(randomPW, randomPW.Length * 8);
string output = CryptobyHelper.bytesToHexString(KeyGenSHA3.getHash());
return(output);
}
/// <param name="console"></param>
public static void testMillerRabin(CryptobyConsole console)
{
Scanner scanner = new Scanner(java.lang.System.@in);
// Initial Variables
int rounds;
string percent;
BigInteger number;
do
{
// Input Number for Primenumber Testing
System.Console.Out.WriteLine("Set Primenumber to Test.");
System.Console.Out.Write("Please enter a positive number: ");
while (!scanner.hasNextBigInteger())
{
System.Console.Out.Write("That's not a number! Enter a positive number: ");
scanner.next();
}
number = scanner.nextBigInteger();
}while (number.compareTo(BigInteger.ONE) < 0);
do
{
// Set the rounds of the Miller Rabin Test
System.Console.Out.WriteLine("Set rounds parameter between 1 and 15.");
System.Console.Out.Write("Please enter the number of rounds: ");
while (!scanner.hasNextInt())
{
System.Console.Out.Write("That's not a number! Enter a valid number: ");
scanner.next();
}
rounds = scanner.nextInt();
}while (rounds < 1 || rounds > 15);
// Initial Miller Rabin Object
console.getCore().getClient().setPrimTestArt("MillerRabin");
console.getCore().getClient().setPrimetestrounds(rounds);
console.getCore().initPrimeTest();
// Get Result of Test
if (console.getCore().getPrimetest().isPrime(number))
{
percent = console.getCore().getPrimetest().getProbability().ToString();
System.Console.Out.WriteLine("\nResult: Number is probably a Primenumber, probability: "
+ percent + "%");
}
else
{
System.Console.Out.WriteLine("\nResult: Number is NOT a Primenumber");
}
// Back to Menu Choose PrimeTest
System.Console.Out.WriteLine("\nGo back to Primetest Menu: Press Enter");
CryptobyHelper.pressEnter();
console.menuPrimeTest();
}
public virtual void testPrintHexBlock()
{
System.Console.Out.WriteLine("printHexBlock");
byte[] cryptByte = Encoding.UTF8.GetBytes("TestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTest"
);
char[] inputCharTextHex = CryptobyHelper.bytesToHexStringUpper(cryptByte).ToCharArray
();
string cryptType = "RSA";
int inputKeySize = 1024;
string result = CryptobyHelper.printHexBlock(cryptType, inputKeySize, inputCharTextHex
);
System.Console.Out.WriteLine(result);
}
public virtual void testEncryptDecrypt256()
{
System.Console.Out.WriteLine("encrypt and decrypt testphrase");
byte[] plainInput = Encoding.UTF8.GetBytes("Text to Test for Testing from Tester by Testcase"
);
KeyGenSHA3 keyGen = new KeyGenSHA3();
string hexKey = keyGen.generateKey(256, "password");
byte[] bKey = CryptobyHelper.hexStringToBytes(hexKey);
CryptAES instance = new CryptAES();
byte[] expResult = plainInput;
byte[] result = instance.encrypt(plainInput, bKey);
result = instance.decrypt(result, bKey);
Assert.AreEqual(expResult, result);
}
public virtual void testEncryptDecrypt256_false()
{
System.Console.Out.WriteLine("crypt almost false key");
byte[] plainInput = Encoding.UTF8.GetBytes("Text to Test for Testing from Tester by Testcase"
);
string hexKey = "13A9489AF957FF7B5E8E712737D0B4A0C92AE8EBAE9DD11E9C11B8CB79707017";
byte[] bKey = CryptobyHelper.hexStringToBytes(hexKey);
CryptAES instance = new CryptAES();
byte[] expResult = plainInput;
byte[] result = instance.encrypt(plainInput, bKey);
hexKey = "13A9489AF957FF7B5E8E712737D0B4A0C92AE8EBAE9DD11E9C11B8CB79707011";
bKey = CryptobyHelper.hexStringToBytes(hexKey);
result = instance.decrypt(result, bKey);
Assert.IsFalse(Encoding.UTF8.GetString(expResult).Equals
(Encoding.UTF8.GetString(result)));
}
/// <summary>Generate RSA Private and Public Key with Size of keyBitSize.</summary>
/// <remarks>Generate RSA Private and Public Key with Size of keyBitSize.</remarks>
/// <param name="keyBitSize">
/// Size of RSA key which will be generated. Allowed are
/// 1024, 2048 and 4096
/// </param>
public virtual void initGenerator(int keyBitSize)
{
if (keyBitSize != 1024 && keyBitSize != 2048 && keyBitSize != 4096)
{
throw new ArgumentException("Just Keys with Size of 1024,2048 or 4096 are allowed!"
);
}
generateKeys(keyBitSize);
// Generate Public Key to Hex String
pubKeyByte = n.toByteArray();
pubKey = CryptobyHelper.bytesToHexString(pubKeyByte);
byte[] dByte = d.toByteArray();
privKeyByte = new byte[dByte.Length + pubKeyByte.Length];
// Copy D ByteArray into first Part and N ByteArray into second Part
Array.Copy(dByte, 0, privKeyByte, 0, dByte.Length);
Array.Copy(pubKeyByte, 0, privKeyByte, dByte.Length, pubKeyByte.Length);
// Generate Private Key to Hex String
privKey = CryptobyHelper.bytesToHexString(privKeyByte);
}
private BigInteger[] getPrimesParallel(int keyBitSize)
{
System.Threading.Thread[] startThreads = new System.Threading.Thread[cores];
GenPrimeThread[] primeThreads = new GenPrimeThread[cores];
BigInteger[] primes = new BigInteger[cores];
BigInteger[] retPrime = new BigInteger[2];
for (int i = 0; i < cores; i++)
{
primeThreads[i] = new GenPrimeThread(core, keyBitSize);
startThreads[i] = new System.Threading.Thread(new System.Threading.ThreadStart(primeThreads[i].run));
}
// Start Threads
for (int i_1 = 0; i_1 < cores; i_1++)
{
startThreads[i_1].Start();
}
for (int i_2 = 0; i_2 < cores; i_2++)
{
startThreads[i_2].Join();
}
for (int i_3 = 0; i_3 < cores; i_3++)
{
primes[i_3] = primeThreads[i_3].getPrime();
}
for (int i_4 = 0; i_4 < cores; i_4++)
{
for (int j = cores - 1; j >= 0; j--)
{
log2ofPQ = java.lang.Math.abs(CryptobyHelper.logBigInteger(primes[i_4]) - CryptobyHelper
.logBigInteger(primes[j]));
if (log2ofPQ >= 0.1 || log2ofPQ <= 30)
{
retPrime[0] = primes[i_4];
retPrime[1] = primes[j];
return(retPrime);
}
}
}
retPrime[0] = BigInteger.ZERO;
retPrime[1] = BigInteger.ZERO;
return(retPrime);
}
public virtual void testEncryptDecrypt256_HugeData()
{
System.Console.Out.WriteLine("encrypt and decrypt huge Data");
byte[] plainInput = new byte[1000000];
KeyGenSHA3 keyGen = new KeyGenSHA3();
string hexKey = keyGen.generateKey(256, "password");
byte[] bKey = CryptobyHelper.hexStringToBytes(hexKey);
CryptAES instance = new CryptAES();
byte[] expResult = plainInput;
byte[] result = instance.encrypt(plainInput, bKey);
result = instance.decrypt(result, bKey);
for (int i = 0; i < 10; i++)
{
result = instance.encrypt(plainInput, bKey);
result = instance.decrypt(result, bKey);
}
Assert.AreEqual(expResult, result);
}
// Help Functions
private static byte[] scanPrivateKey(CryptobyConsole console)
{
byte[] retKey = null;
do
{
scanner = new Scanner(java.lang.System.@in);
string keyText = string.Empty;
// Input Private Key for decryption
Console.Out.WriteLine("\nEnter the private Key (Type '" + quit + "' to Escape):"
);
try
{
while (!scanner.hasNext(CryptobyHelper.getEOBString()))
{
if (scanner.hasNext(quit))
{
rsaCrypterText(console);
}
keyText = keyText + scanner.next();
}
retKey = CryptobyHelper.hexStringToBytes(keyText);
keySize = retKey.Length * 4;
}
catch (FormatException)
{
// Catch false format of Input
Console.Out.WriteLine("Not allowed Characters in Private Key! Just lower alphanumeric Characters!"
);
retKey = BigInteger.ZERO.toByteArray();
keySize = 0;
}
catch (ArgumentNullException)
{
Console.Out.WriteLine("NullPointerException catched! Try again!");
retKey = BigInteger.ZERO.toByteArray();
keySize = 0;
}
}while (keySize != 1024 && keySize != 2048 && keySize != 4096);
return(retKey);
}
private static void rsaEncrypterText(CryptobyConsole console)
{
// Input your String Text to encrypt
plainByte = scanPlainText(console);
// Input the Public Key to encrypt
publicKeyByte = scanPublicKey(console);
// Initial RSA Crypt Object
initRSAKeyGen(console);
// Encrypt the String Text with given Key
Console.Out.WriteLine("\nEncryption in progress...");
cryptByte = console.getCore().getCryptAsym().encrypt(plainByte, publicKeyByte);
Console.Out.WriteLine("\nEncryption successfull...");
// Convert byte Array into a Hexcode String
charTextHex = CryptobyHelper.bytesToHexStringUpper(cryptByte).ToCharArray();
// Print encrypted Text in Hex Block form
Console.Out.WriteLine(CryptobyHelper.printHexBlock("RSA", keySize, charTextHex
));
// Back to Menu rsaCrypter with Enter (Return) Key
Console.Out.WriteLine("\nGo back to RSA Text Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
rsaCrypterText(console);
}
public virtual void testEncryptDecrypt256_CBC()
{
System.Console.Out.WriteLine("encrypt and decrypt recurring words");
byte[] plainInput = Encoding.UTF8.GetBytes("TestTestTestTestTestTestTestTestTestTestTestTestTestTestTestTest"
);
KeyGenSHA3 keyGen = new KeyGenSHA3();
string hexKey = keyGen.generateKey(256, "password");
byte[] bKey = CryptobyHelper.hexStringToBytes(hexKey);
CryptAES instance = new CryptAES();
byte[] expResult = plainInput;
byte[] result = instance.encrypt(plainInput, bKey);
string resString = CryptobyHelper.bytesToHexStringUpper(result);
for (int i = 0; i < resString.Length - 32; i += 32)
{
Assert.IsFalse(resString.Substring(i, 32).Equals
(resString.Substring(i + 32, 32)));
}
result = instance.decrypt(result, bKey);
Assert.AreEqual(expResult, result);
}
private static void aesEncrypterFile(CryptobyConsole console)
{
// Input Path to File for encryption
scanner = new Scanner(java.lang.System.@in);
Console.Out.WriteLine("Enter Path to File for encryption (Type '" + quit +
"' to Escape):");
scanner.useDelimiter("\n");
if (scanner.hasNext(quit))
{
aesCrypterFile(console);
}
plainFilePath = scanner.next();
// Get Bytes from PlainFile
try
{
plainByte = CryptobyFileManager.getBytesFromFile(plainFilePath);
}
catch (System.IO.IOException)
{
CryptobyHelper.printIOExp();
aesCrypterFile(console);
}
// Input Path saving Path
scanner = new Scanner(java.lang.System.@in);
Console.Out.WriteLine("Enter Path to save encrypted File (Type '" + quit +
"' to Escape):");
scanner.useDelimiter("\n");
if (scanner.hasNext(quit))
{
aesCrypterFile(console);
}
cryptFilePath = scanner.next();
// Input Key File for encryption
key = scanKeyFile(console);
// Initial AES Crypt Object
initAESKeyGen(console);
// Encrypt the String Text with given Key
Console.Out.WriteLine("\nEncrypting in progress...");
cryptByte = console.getCore().getCryptSym().encrypt(plainByte, key);
Console.Out.WriteLine("\nEncryption successfull. Saving File now...");
//Put encrypted Bytes to File
try
{
CryptobyFileManager.putBytesToFile(cryptFilePath, cryptByte);
}
catch (System.IO.IOException ex)
{
Logger.getLogger(typeof(RsaUI).FullName).log(Level.SEVERE, null, ex);
}
Console.Out.WriteLine("\nEncrypted File saved to this Path:");
Console.Out.WriteLine(cryptFilePath);
// Reset Variables
initAESKeyGen(console);
cryptByte = null;
plainByte = null;
key = null;
// Back to File Crypter Menu
Console.Out.WriteLine("\nGo back to AES File Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
aesCrypterFile(console);
}
private static void aesDecrypterFile(CryptobyConsole console)
{
// Input Path to File for decryption
scanner = new Scanner(java.lang.System.@in);
Console.Out.WriteLine("Enter Path to decrypt a File (Type '" + quit + "' to Escape):"
);
scanner.useDelimiter("\n");
if (scanner.hasNext(quit))
{
aesCrypterFile(console);
}
cryptFilePath = scanner.next();
try
{
// Get Bytes from PlainFile
cryptByte = CryptobyFileManager.getBytesFromFile(cryptFilePath);
}
catch (System.IO.IOException)
{
CryptobyHelper.printIOExp();
aesCrypterFile(console);
}
// Input Path saving Path
scanner = new Scanner(java.lang.System.@in);
Console.Out.WriteLine("Enter Path to save decrypted File (Type '" + quit +
"' to Escape):");
scanner.useDelimiter("\n");
if (scanner.hasNext(quit))
{
aesCrypterFile(console);
}
plainFilePath = scanner.next();
// Input your Key for encryption
key = scanKeyFile(console);
// Initial AES Crypt Object
initAESKeyGen(console);
// Decrypt the String Text with given Key
Console.Out.WriteLine("\nDecrypting in progress...");
try
{
plainByte = console.getCore().getCryptSym().decrypt(cryptByte, key);
}
catch (Exception)
{
Console.Out.WriteLine("\nUnable to decrypt this String!!");
// Enter for Continues
CryptobyHelper.pressEnter();
aesCrypterFile(console);
}
Console.Out.WriteLine("\nDecryption finished. Saving File now...");
try
{
//Put encrypted Bytes to File
CryptobyFileManager.putBytesToFile(plainFilePath, plainByte);
}
catch (System.IO.IOException)
{
CryptobyHelper.printIOExp();
aesCrypterFile(console);
}
Console.Out.WriteLine("\nDecrypted File saved to this Path:");
Console.Out.WriteLine(plainFilePath);
// Reset Variables
initAESKeyGen(console);
cryptByte = null;
plainByte = null;
key = null;
// Back to File Crypter Menu
Console.Out.WriteLine("\nGo back to AES File Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
aesCrypterFile(console);
}
/// <param name="console"></param>
public static void genSHA3KeyText(CryptobyConsole console)
{
Scanner scanner = new Scanner(java.lang.System.@in);
// Initial Variables
int keySize;
int choice;
string pwAns;
string key;
string password;
// Set Default Key Size
keySize = 256;
do
{
Console.Out.WriteLine("\n");
Console.Out.WriteLine("Select Key Size in Bit");
Console.Out.WriteLine("----------------------\n");
Console.Out.WriteLine("1 - 224");
Console.Out.WriteLine("2 - 256");
Console.Out.WriteLine("3 - 384");
Console.Out.WriteLine("4 - 512");
Console.Out.WriteLine("5 - Back");
Console.Out.Write("Enter Number: ");
while (!scanner.hasNextInt())
{
Console.Out.WriteLine("That's not a number! Enter 1,2,3,4 or 5:");
scanner.next();
}
choice = scanner.nextInt();
}while (choice < 1 || choice > 5);
switch (choice)
{
case 1:
{
keySize = 224;
break;
}
case 2:
{
keySize = 256;
break;
}
case 3:
{
keySize = 384;
break;
}
case 4:
{
keySize = 512;
break;
}
case 5:
{
console.menuGenKey();
break;
}
default:
{
console.menuGenKey();
break;
}
}
do
{
// Input a Password or nothing, in the case it will be used a Secure Random number
Console.Out.WriteLine("Do you want to use a password. If not, it will be used a SecureRandom password."
);
Console.Out.Write("Enter y or n: ");
pwAns = scanner.next();
}while (!pwAns.Equals("y") && !pwAns.Equals("n"));
if (pwAns.Equals("y"))
{
Console.Out.Write("Enter Password for the Key: ");
password = scanner.next();
}
else
{
password = string.Empty;
}
// Initial Key Generator
console.getCore().getClient().setKeySymArt("SHA3");
console.getCore().initSymKey();
// Get Result of Test
if (password.Equals(string.Empty))
{
key = console.getCore().getKeyGenSym().generateKey(keySize);
}
else
{
key = console.getCore().getKeyGenSym().generateKey(keySize, password);
}
// Print Key
Console.Out.WriteLine("SHA3-" + keySize + ": " + key);
// Enter for Continues
CryptobyHelper.pressEnter();
// Back to Menu Choose PrimeTest
console.menuGenKey();
}
/// <summary>Encrypt a byte array in blocks with AES algorithm in CBC mode.</summary>
/// <remarks>Encrypt a byte array in blocks with AES algorithm in CBC mode.</remarks>
/// <param name="plainInput">Plain byte array to encrypt</param>
/// <param name="key">256 Bit key to encrypt plainInput</param>
/// <returns>Return encrypted byte array</returns>
public virtual byte[] encrypt(byte[] plainInput, byte[] key)
{
int inputLength = plainInput.Length;
int percentProgress;
int prevPercent = -1;
byte[] inputLengthByte = ByteBuffer.allocate(4).order(ByteOrder.BIG_ENDIAN).putInt(inputLength).array();
int restInput = plainInput.Length % nBytes;
byte[] exKey = initKeyExpand(key);
byte[] cipher = new byte[nBytes];
byte[] cryptOutput = new byte[(inputLength - restInput) + nBytes * 2];
int outputLength = cryptOutput.Length;
byte[] initVector = new byte[nBytes];
byte[] nextBlock = new byte[nBytes];
SecureRandom scRandom = new SecureRandom();
// Copy plaintext Array into crypt Array
System.Array.Copy(plainInput, 0, cryptOutput, 0, inputLength);
// Fill Initialization Vector with Random Bytes
scRandom.nextBytes(initVector);
// Copy first Input Block to nextBlock
System.Array.Copy(cryptOutput, 0, nextBlock, 0, nBytes);
// XOR Random initVektor with first Input Block
nextBlock = CryptobyHelper.xorByteArrays(nextBlock, initVector);
// Copy xored prevBlock into first Input Block
System.Array.Copy(nextBlock, 0, cryptOutput, 0, nBytes);
// Encrypt last BlockArray
initVector = encryptCipher(initVector, exKey);
// Add the initVector Array in to last BlockArray and encrypt it
System.Array.Copy(initVector, 0, cryptOutput, outputLength - nBytes, nBytes);
// Add in the first Byte after CryptText the origin length of plaintext Array
System.Array.Copy(inputLengthByte, 0, cryptOutput, outputLength - nBytes * 2, 4);
// Encrypt every Block in CBC Mode
for (int i = 0; i < outputLength - nBytes; i += nBytes)
{
// Convert i to percent for ProgressBar
// percentProgress = (int)(((float)i / (float)(outputLength - nBytes)) * 100);
// // Print ProgressBar
// if (percentProgress > prevPercent)
// {
// CryptobyHelper.printProgressBar(percentProgress);
// }
// prevPercent = percentProgress;
// Copy current block in to Cipher Array
System.Array.Copy(nextBlock, 0, cipher, 0, nBytes);
// Encrypt Cipher
cipher = this.encryptCipher(cipher, exKey);
// CBC Mode: XOR next PlainBlock with encrypted Cipher
if (i + nBytes < outputLength)
{
System.Array.Copy(cryptOutput, i + nBytes, nextBlock, 0, nBytes);
nextBlock = CryptobyHelper.xorByteArrays(nextBlock, cipher);
}
// Copy Cipher back in decryptOutput Array
System.Array.Copy(cipher, 0, cryptOutput, i, nBytes);
}
// CryptobyHelper.printProgressBar(100);
return(cryptOutput);
}
/// <summary>Decrypt a byte array in blocks with AES algorithm in CBC mode.</summary>
/// <remarks>Decrypt a byte array in blocks with AES algorithm in CBC mode.</remarks>
/// <param name="cryptInput">Encrypted byte array to decrypt</param>
/// <param name="key">256 Bit key to decrypt cryptInput</param>
/// <returns>Return decrypted byte array</returns>
public virtual byte[] decrypt(byte[] cryptInput, byte[] key)
{
int percentProgress;
int prevPercent = -1;
byte[] exKey = initKeyExpand(key);
int outputLength = cryptInput.Length;
byte[] decryptOutput = new byte[outputLength];
System.Array.Copy(cryptInput, 0, decryptOutput, 0, outputLength);
byte[] cipher = new byte[nBytes];
byte[] inputLengthByte = new byte[nBytes];
byte[] plainOutput;
byte[] initVector = new byte[nBytes];
byte[] prevBlock = new byte[nBytes];
// Add the initVector Array in to last BlockArray and encrypt it
System.Array.Copy(decryptOutput, outputLength - nBytes, initVector, 0, nBytes);
// Decrypt last BlockArray
initVector = this.decryptCipher(initVector, exKey);
// Copy initVector to prevBlock Array
System.Array.Copy(initVector, 0, prevBlock, 0, nBytes);
for (int i = 0; i < outputLength - nBytes; i += nBytes)
{
// // Convert i to percent for ProgressBar
// percentProgress = (int)(((float)i / (float)(outputLength - nBytes)) * 100);
// // Print ProgressBar
// if (percentProgress > prevPercent)
// {
// CryptobyHelper.printProgressBar(percentProgress);
// }
// prevPercent = percentProgress;
// Copy current block in to Cipher Array
System.Array.Copy(decryptOutput, i, cipher, 0, nBytes);
// Decrypt Cipher
cipher = this.decryptCipher(cipher, exKey);
// CBC Mode: XOR next PlainBlock with encrypted Cipher
if (i + nBytes < outputLength)
{
cipher = CryptobyHelper.xorByteArrays(prevBlock, cipher);
System.Array.Copy(decryptOutput, i, prevBlock, 0, nBytes);
}
// Copy Cipher back in current decryptOutput Array
System.Array.Copy(cipher, 0, decryptOutput, i, nBytes);
}
// Read last Index of encryptet Output
// and use the Integer Content for lenght of plainOutput
System.Array.Copy(decryptOutput, outputLength - nBytes * 2, inputLengthByte, 0, 4);
int lengthOriginArray = ByteBuffer.wrap(inputLengthByte).order(ByteOrder.BIG_ENDIAN
).getInt();
try
{
plainOutput = new byte[lengthOriginArray];
System.Array.Copy(decryptOutput, 0, plainOutput, 0, lengthOriginArray);
}
catch (Exception)
{
plainOutput = cryptInput;
}
// CryptobyHelper.printProgressBar(100);
return(plainOutput);
}
private static void rsaDecrypterFile(CryptobyConsole console)
{
// Input Path to File for decryption
scanner = new Scanner(java.lang.System.@in);
Console.Out.WriteLine("Enter Path to File for Decryption (Type '" + quit +
"' to Escape):");
scanner.useDelimiter("\n");
if (scanner.hasNext(quit))
{
rsaCrypterFile(console);
}
cryptFilePath = scanner.next();
// Get Bytes from PlainFile
try
{
cryptByte = CryptobyFileManager.getBytesFromFile(cryptFilePath);
}
catch (System.IO.IOException)
{
CryptobyHelper.printIOExp();
rsaCrypterFile(console);
}
// Input Path saving Path
scanner = new Scanner(java.lang.System.@in);
Console.Out.WriteLine("Enter saving Path for decrypted File (Type '" + quit
+ "' to Escape):");
scanner.useDelimiter("\n");
if (scanner.hasNext(quit))
{
rsaCrypterFile(console);
}
plainFilePath = scanner.next();
// Input Path to Key File for decryption
scanner = new Scanner(java.lang.System.@in);
Console.Out.WriteLine("Enter Path to Private Key File (Type '" + quit + "' to Escape):"
);
scanner.useDelimiter("\n");
if (scanner.hasNext(quit))
{
rsaCrypterFile(console);
}
privateKeyPath = scanner.next();
// Get Bytes from Private Key File
try
{
privateKeyByte = CryptobyFileManager.getKeyFromFile(privateKeyPath);
}
catch (System.IO.IOException)
{
CryptobyHelper.printIOExp();
rsaCrypterFile(console);
}
catch (FormatException)
{
Console.Out.WriteLine("Key File format is not correct!");
rsaCrypterFile(console);
}
// Initial RSA Crypt Object
initRSAKeyGen(console);
// Encrypt the File with given Key
Console.Out.WriteLine("\nDecryption in progress...");
try
{
plainByte = console.getCore().getCryptAsym().decrypt(cryptByte, privateKeyByte);
}
catch (Exception)
{
Console.Out.WriteLine("\nUnable to decrypt this File!!");
plainByte = null;
// Press Return for Continues
CryptobyHelper.pressEnter();
rsaCrypterFile(console);
}
Console.Out.WriteLine("\nDecryption finished. Saving File now...");
try
{
//Put encrypted Bytes to File
CryptobyFileManager.putBytesToFile(plainFilePath, plainByte);
}
catch (System.IO.IOException)
{
CryptobyHelper.printIOExp();
rsaCrypterFile(console);
}
Console.Out.WriteLine("\nDecrypted File saved to this Path:");
Console.Out.WriteLine(plainFilePath);
// Reset Variables
initRSAKeyGen(console);
cryptByte = null;
plainByte = null;
publicKeyByte = null;
// Back to Menu rsaCrypter with Enter (Return) Key
Console.Out.WriteLine("\nGo back to RSA File Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
rsaCrypterFile(console);
}
private static void rsaEncGenKeysText(CryptobyConsole console)
{
scanner = new Scanner(java.lang.System.@in);
string privateKey;
string publicKey;
// Set Default Key Size
keySize = 1024;
do
{
Console.Out.WriteLine("\n");
Console.Out.WriteLine("Choose Key Size in Bit");
Console.Out.WriteLine("----------------------\n");
Console.Out.WriteLine("1 - 1024");
Console.Out.WriteLine("2 - 2048");
Console.Out.WriteLine("3 - 4096");
Console.Out.WriteLine("4 - Back");
Console.Out.Write("Enter Number: ");
while (!scanner.hasNextInt())
{
Console.Out.Write("That's not a number! Enter 1,2,3 or 4: ");
scanner.next();
}
choice = scanner.nextInt();
}while (choice < 1 || choice > 4);
switch (choice)
{
case 1:
{
keySize = 1024;
break;
}
case 2:
{
keySize = 2048;
break;
}
case 3:
{
keySize = 4096;
break;
}
case 4:
{
rsaCrypterText(console);
break;
}
default:
{
rsaEncGenKeysText(console);
break;
}
}
// Input your String Text to encrypt
plainByte = scanPlainText(console);
// Initial RSA Crypt Object
initRSAKeyGen(console);
// Get Public Key in Bytecode
Console.Out.WriteLine("\nGenerate Private and Public RSA Keys...");
console.getCore().getKeyGenAsym().initGenerator(keySize);
publicKeyByte = console.getCore().getKeyGenAsym().getPublicKeyByte();
// Get Public and Private Key as String
publicKey = console.getCore().getKeyGenAsym().getPublicKey();
privateKey = console.getCore().getKeyGenAsym().getPrivateKey();
// Encrypt the String Text with given Key
Console.Out.WriteLine("\nEncryption in progress...");
cryptByte = console.getCore().getCryptAsym().encrypt(plainByte, publicKeyByte);
Console.Out.WriteLine("\nEncryption successfull...");
// Convert crypted byte Array into a Hexcode String
charTextHex = CryptobyHelper.bytesToHexStringUpper(cryptByte).ToCharArray();
// Print encrypted Text in Hex Block form
Console.Out.WriteLine(CryptobyHelper.printHexBlock("RSA", keySize, charTextHex
));
// Print Private Keys
Console.Out.WriteLine(CryptobyHelper.printPrivateKeyBlock(privateKey));
// Print Public Keys
Console.Out.WriteLine(CryptobyHelper.printPublicKeyBlock(publicKey));
// Back to Menu rsaCrypter with Enter (Return) Key
Console.Out.WriteLine("\nGo back to RSA Text Crypter Menu: Press Enter");
CryptobyHelper.pressEnter();
rsaCrypterText(console);
}
