Is there some Java equivalent of Convert.FromBase64String which
Converts the specified string, which encodes binary data as base-64 digits, to an equivalent 8-bit unsigned integer array.
I have tried:
Will be grateful for any suggestions!
In general, chances are good that if the standard Java libraries don't have something you need, the Apache Commons framework does. In this case, you want the decodeBase64 method from commons.codec.binary.Base64.
byte[].The key and the initial vector are converted using Convert.FromBase64String inAES encryption in C#.
In java, you can use DatatypeConverter.parseBase64Binary(string) method. In order to use it import import javax.xml.bind.*;
Here is the example program
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.*;
class AESEncryption {
private static final String key = "type your key here.(base64)";
private static final String initVector = "type your initial vector here.(base64)";
static byte[] encodedKey = DatatypeConverter.parseBase64Binary(key);
static byte[] encodedIV = DatatypeConverter.parseBase64Binary(initVector);
public static String encrypt(final String value) {
try {
IvParameterSpec iv = new IvParameterSpec(encodedIV);
SecretKeySpec skeySpec = new SecretKeySpec(encodedKey, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] encrypted = cipher.doFinal(value.getBytes());
return Base64.getEncoder().encodeToString(encrypted);
} catch (final Exception ex) {
ex.printStackTrace();
}
return null;
}
public static String decrypt(final String encrypted) {
try {
IvParameterSpec iv = new IvParameterSpec(encodedIV);
SecretKeySpec skeySpec = new SecretKeySpec(encodedKey, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
byte[] original = cipher.doFinal(Base64.getDecoder().decode(encrypted));
return new String(original);
} catch (final Exception ex) {
ex.printStackTrace();
}
return null;
}
public static void main(final String[] args) {
String originalString = "Here is your text to be encrypted.";
System.out.println("Original String to encrypt - " + originalString);
String encryptedString = encrypt(originalString);
System.out.println("Encrypted String - " + encryptedString);
String decryptedString = decrypt(encryptedString);
System.out.println("After decryption - " + decryptedString);
}
}
