static DSAPublicKey parseDSA(DataByteInputStream in) throws IOException {
byte t = in.readByte();
BigInteger q = in.readBigInteger(20);
BigInteger p = in.readBigInteger(64 + t * 8);
BigInteger g = in.readBigInteger(64 + t * 8);
BigInteger y = in.readBigInteger(64 + t * 8);
DSAPublicKey dsa = new DSAPubKey(p, q, g, y);
return dsa;
}
static RSAPublicKey parseRSA(DataByteInputStream in) throws IOException {
int exponentLength = in.readUnsignedByte();
if (exponentLength == 0) exponentLength = in.readUnsignedShort();
BigInteger exponent = in.readBigInteger(exponentLength);
int modulusLength = in.available();
BigInteger modulus = in.readBigInteger(modulusLength);
RSAPublicKey rsa = new RSAPubKey(modulus, exponent);
return rsa;
}
KEYRecord(Name _name, short _dclass, int _ttl, int length, DataByteInputStream in, Compression c)
throws IOException {
super(_name, Type.KEY, _dclass, _ttl);
if (in == null) return;
flags = in.readShort();
proto = in.readByte();
alg = in.readByte();
if (length > 4) {
key = new byte[length - 4];
in.read(key);
}
}
Record rrFromWire(Name name, int type, int dclass, long ttl, int length, DataByteInputStream in)
throws IOException {
CERTRecord rec = new CERTRecord(name, dclass, ttl);
if (in == null) return rec;
rec.certType = in.readShort();
rec.keyTag = in.readUnsignedShort();
rec.alg = in.readByte();
if (length > 5) {
rec.cert = new byte[length - 5];
in.read(rec.cert);
}
return rec;
}
static DHPublicKey parseDH(DataByteInputStream in) throws IOException {
int special = 0;
int pLength = in.readUnsignedShort();
if (pLength < 16 && pLength != 1 && pLength != 2) return null;
BigInteger p;
if (pLength == 1 || pLength == 2) {
if (pLength == 1) special = in.readUnsignedByte();
else special = in.readUnsignedShort();
if (special != 1 && special != 2) return null;
if (special == 1) p = DHPRIME768;
else p = DHPRIME1024;
} else p = in.readBigInteger(pLength);
int gLength = in.readUnsignedShort();
BigInteger g;
if (gLength == 0) {
if (special != 0) g = TWO;
else return null;
} else g = in.readBigInteger(gLength);
int yLength = in.readUnsignedShort();
BigInteger y = in.readBigInteger(yLength);
return new DHPubKey(p, g, y);
}
protected static Record rrFromWire(SIGBase rec, int length, DataByteInputStream in)
throws IOException {
if (in == null) return rec;
int start = in.getPos();
rec.covered = in.readUnsignedShort();
rec.alg = in.readByte();
rec.labels = in.readByte();
rec.origttl = in.readUnsignedInt();
rec.expire = new Date(1000 * (long) in.readInt());
rec.timeSigned = new Date(1000 * (long) in.readInt());
rec.footprint = in.readShort();
rec.signer = new Name(in);
rec.signature = new byte[length - (in.getPos() - start)];
in.read(rec.signature);
return rec;
}
Record rrFromWire(
Name name, short type, short dclass, int ttl, int length, DataByteInputStream in)
throws IOException {
SIGRecord rec = new SIGRecord(name, dclass, ttl);
if (in == null) return rec;
int start = in.getPos();
rec.covered = in.readShort();
rec.alg = in.readByte();
rec.labels = in.readByte();
rec.origttl = in.readInt();
rec.expire = new Date(1000 * (long) in.readInt());
rec.timeSigned = new Date(1000 * (long) in.readInt());
rec.footprint = in.readShort();
rec.signer = new Name(in);
rec.signature = new byte[length - (in.getPos() - start)];
in.read(rec.signature);
return rec;
}
UNKRecord(
Name _name,
short _type,
short _dclass,
int _ttl,
int length,
DataByteInputStream in,
Compression c)
throws IOException {
super(_name, _type, _dclass, _ttl);
if (in == null) return;
if (length > 0) {
data = new byte[length];
in.read(data);
} else data = null;
}
