63 lines
1.7 KiB
Java
63 lines
1.7 KiB
Java
package org.tcpid.key;
|
|
|
|
import java.util.ArrayList;
|
|
|
|
import org.libsodium.jni.crypto.Hash;
|
|
import org.libsodium.jni.encoders.Encoder;
|
|
|
|
import com.google.common.primitives.Longs;
|
|
|
|
public class MasterSigningKey extends SigningKey {
|
|
public static final Hash HASH = new Hash();
|
|
private MasterSigningKey subkey;
|
|
private Long subkeyindex;
|
|
private final ArrayList<Long> keyindex;
|
|
|
|
public MasterSigningKey(final byte[] key) {
|
|
super(key);
|
|
subkey = null;
|
|
subkeyindex = 0L;
|
|
this.keyindex = new ArrayList<>();
|
|
}
|
|
|
|
public MasterSigningKey(final byte[] key, final ArrayList<Long> keyindex) {
|
|
super(key);
|
|
subkey = null;
|
|
subkeyindex = 0L;
|
|
this.keyindex = new ArrayList<>(keyindex);
|
|
}
|
|
|
|
public MasterVerifyKey getMasterVerifyKey() {
|
|
return new MasterVerifyKey(this.getVerifyKey().toBytes());
|
|
}
|
|
|
|
public MasterSigningKey getNextValidSubKey(final Long offset) {
|
|
return getSubKey(subkeyindex + offset);
|
|
}
|
|
|
|
public MasterSigningKey getSubKey(final Long offset) {
|
|
final byte[] ob = Longs.toByteArray(offset);
|
|
final byte[] newseed = HMACSHA512256.of(seed, ob);
|
|
final ArrayList<Long> ki = new ArrayList<>(this.keyindex);
|
|
ki.add(offset);
|
|
return new MasterSigningKey(newseed, ki);
|
|
}
|
|
|
|
public MasterSigningKey getValidSubKey() {
|
|
if (subkey == null) {
|
|
subkey = getSubKey(subkeyindex);
|
|
}
|
|
return subkey;
|
|
}
|
|
|
|
public void revokeSubKey() {
|
|
subkey.setRevoked(true);
|
|
subkeyindex++;
|
|
subkey = null;
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
return "Index: " + this.keyindex.toString() + " " + Encoder.HEX.encode(seed);
|
|
}
|
|
}
|