public static PasswordAuthenticatedEntry decode(DataInputStream in) throws IOException {
PasswordAuthenticatedEntry entry = new PasswordAuthenticatedEntry();
entry.defaultDecode(in);
if (!entry.properties.containsKey("mac")) {
throw new MalformedKeyringException("no MAC");
}
if (!entry.properties.containsKey("maclen")) {
throw new MalformedKeyringException("no MAC length");
}
if (!entry.properties.containsKey("salt")) {
throw new MalformedKeyringException("no salt");
}
return entry;
}
public static PasswordAuthenticatedEntry decode(DataInputStream in, char[] password)
throws IOException {
PasswordAuthenticatedEntry entry = new PasswordAuthenticatedEntry();
entry.properties.decode(in);
IMac mac = entry.getMac(password);
int len = in.readInt() - mac.macSize();
MeteredInputStream min = new MeteredInputStream(in, len);
MacInputStream macin = new MacInputStream(min, mac);
DataInputStream in2 = new DataInputStream(macin);
entry.setMasked(false);
entry.decodeEnvelope(in2);
byte[] macValue = new byte[mac.macSize()];
in.readFully(macValue);
if (!Arrays.equals(macValue, mac.digest())) {
throw new MalformedKeyringException("MAC verification failed");
}
return entry;
}
