Can't decrypt after encrypting with blowfish Java
- by user2030599
Hello i'm new to Java and i have the following problem: i'm trying to encrypt the password of a user using the blowfish algorithm, but when i try to decrypt it back to check the authentication it fails to decrypt it for some reason.
public static String encryptBlowFish(String to_encrypt, String salt){
String dbpassword = null;
try{
SecretKeySpec skeySpec = new SecretKeySpec( salt.getBytes(), "Blowfish" );
// Instantiate the cipher.
Cipher cipher = Cipher.getInstance("Blowfish/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
//byte[] encrypted = cipher.doFinal( URLEncoder.encode(data).getBytes() );
byte[] encrypted = cipher.doFinal( to_encrypt.getBytes() );
dbpassword = new String(encrypted);
} catch (Exception e) {
System.out.println("Exception while encrypting");
e.printStackTrace();
dbpassword = null;
} finally {
return dbpassword;
}
}
public static String decryptBlowFish(String to_decrypt, String salt){
String dbpassword = null;
try{
SecretKeySpec skeySpec = new SecretKeySpec( salt.getBytes(), "Blowfish" );
// Instantiate the cipher.
Cipher cipher = Cipher.getInstance("Blowfish/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, skeySpec);
//byte[] encrypted = cipher.doFinal( URLEncoder.encode(data).getBytes() );
byte[] encrypted = cipher.doFinal( to_decrypt.getBytes() );
dbpassword = new String(encrypted);
} catch (Exception e) {
System.out.println("Exception while decrypting");
e.printStackTrace();
dbpassword = null;
} finally {
return dbpassword;
}
}
When i call the decrypt function it gives me the following error:
java.security.InvalidKeyException: Parameters missing
Any ideas? Thank you
