droidCrypter is a Java API crypter by which you can crypt and decrypt text without any key.

How to Use:

->Add droidCrypt.jar to your project Build Path

->Create a Reference of IdroidCrypt interface with Crypter.getInstance() which provide Object for IdroidCrypt

    EX- IdroidCrypt idc = Crypter.getInstance();

->Two methods idc reference is provide us i.e public String cipher(String text) which encrypt the text and public String decipher(String encText) which decrypt the encrypted text.

    EX- String encText = idc.cipher("Hello this text is going to be encrypter");
         encText storing encType text 
         String normalText = idc.decipher(encText);
         normalText storing decrypted text

USES:

-> Transfer important information between two medium

-> Storing Confidential data in Database in encrypted form

-> Encryption of text in file

Implementation: I am not disclosing implementation at this point ;) just enjoy and say Thanks