Re: DES Encryption Java for the Basic authentication PHP
On Nov 2, 3:25 pm, Lew <l...@lewscanon.com> wrote:
Johnny wrote:
My name's Thomas.
I need an algorithm to encrypt a string with the DES encryption, that
works whit the basic auth in PHP.
I've tried some algorithms but the output don't works whit php....
RedGrittyBrick wrote:
There's really only one algorithm for DES. It has several modes of
operation. Maybe you could find out which mode PHP uses?
http://www.itl.nist.gov/fipspubs/fip81.htm
Thomas, please provide an SSCCE of the sort of thing you've tried.
<http://www.physci.org/codes/sscce.html>
--
Lew
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import javax.crypto.*;
public class DesEncrypter {
Cipher ecipher;
Cipher dcipher;
DesEncrypter(SecretKey key) {
try {
ecipher = Cipher.getInstance("DES");
dcipher = Cipher.getInstance("DES");
ecipher.init(Cipher.ENCRYPT_MODE, key);
dcipher.init(Cipher.DECRYPT_MODE, key);
} catch (javax.crypto.NoSuchPaddingException e) {
} catch (java.security.NoSuchAlgorithmException e) {
} catch (java.security.InvalidKeyException e) {
}
}
public String encrypt(String str) {
try {
// Encode the string into bytes using utf-8
byte[] utf8 = str.getBytes("UTF8");
// Encrypt
byte[] enc = ecipher.doFinal(utf8);
// Encode bytes to base64 to get a string
return new sun.misc.BASE64Encoder().encode(enc);
} catch (javax.crypto.BadPaddingException e) {
} catch (IllegalBlockSizeException e) {
} catch (java.io.IOException e) {
}
return null;
}
public String decrypt(String str) {
try {
// Decode base64 to get bytes
byte[] dec = new
sun.misc.BASE64Decoder().decodeBuffer(str);
// Decrypt
byte[] utf8 = dcipher.doFinal(dec);
// Decode using utf-8
return new String(utf8, "UTF8");
} catch (javax.crypto.BadPaddingException e) {
} catch (IllegalBlockSizeException e) {
} catch (java.io.IOException e) {
}
return null;
}
public static void main(String args[]){
try {
SecretKey key =
KeyGenerator.getInstance("DES").generateKey();
DesEncrypter encrypter = new DesEncrypter(key);
System.out.println(encrypter.encrypt("ciao"));
} catch (Exception e) {
e.printStackTrace();
}
}
}
---------------------------------------------------------
This is the code i've founded on internet, i don't know if the output
is right or wrong, i only know that php basic auth don't works with
this encryption....