public static String getSignature(String s) {
try {
final AsciiEncoder coder = new AsciiEncoder();
final MessageDigest msgDigest = MessageDigest.getInstance("MD5");
msgDigest.update(s.getBytes("UTF-8"));
final byte[] digest = msgDigest.digest();
return coder.encode(digest);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
throw new UnsupportedOperationException(e);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
throw new UnsupportedOperationException(e);
}
}
public static String getSignature(File f) throws IOException {
try {
final AsciiEncoder coder = new AsciiEncoder();
final MessageDigest msgDigest = MessageDigest.getInstance("MD5");
final FileInputStream is = new FileInputStream(f);
int read = -1;
while ((read = is.read()) != -1) {
msgDigest.update((byte) read);
}
is.close();
final byte[] digest = msgDigest.digest();
return coder.encode(digest);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
throw new UnsupportedOperationException(e);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
throw new UnsupportedOperationException(e);
}
}