I am working on an Android app and have a couple strings that I would like to encrypt before sending to a database. I'd like something that's secure, easy to implement, will generate the same thing every time it's passed the same data, and preferably will result in a string that stays a constant length no matter how large the string being passed to it is. Maybe I'm looking for a hash.
A:
Hi! This snippet calculate md5 for a given string
public String md5(String s) {
try {
// Create MD5 Hash
MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
digest.update(s.getBytes());
byte messageDigest[] = digest.digest();
// Create Hex String
StringBuffer hexString = new StringBuffer();
for (int i=0; i<messageDigest.length; i++)
hexString.append(Integer.toHexString(0xFF & messageDigest[i]));
return hexString.toString();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return "";
}
Source: http://www.androidsnippets.org/snippets/52/index.html
Hope this is useful for you
Antonio
2010-10-14 14:45:20
Yes, thanks! I am at work and unable to try it right now (this is my research time), but I will try it when I get home and it seems like it'll be just what I need.
Jorsher
2010-10-14 15:16:42
could you tell me how to decrypt your code,thanks
pengwang
2010-10-15 04:53:19