35 lines
695 B
Java
35 lines
695 B
Java
|
|
package net.filebot.hash;
|
|
|
|
import java.math.BigInteger;
|
|
import java.security.MessageDigest;
|
|
|
|
public class MessageDigestHash implements Hash {
|
|
|
|
private final MessageDigest md;
|
|
|
|
public MessageDigestHash(String algorithm) {
|
|
try {
|
|
this.md = MessageDigest.getInstance(algorithm);
|
|
} catch (Exception e) {
|
|
throw new IllegalStateException(e);
|
|
}
|
|
}
|
|
|
|
public MessageDigestHash(MessageDigest md) {
|
|
this.md = md;
|
|
}
|
|
|
|
@Override
|
|
public void update(byte[] bytes, int off, int len) {
|
|
md.update(bytes, off, len);
|
|
}
|
|
|
|
@Override
|
|
public String digest() {
|
|
// e.g. %032x (format for MD-5)
|
|
return String.format("%0" + (md.getDigestLength() * 2) + "x", new BigInteger(1, md.digest()));
|
|
}
|
|
|
|
}
|