Method fromPublicKey

src/main/java/core/org/xbill/DNS/DNSSEC.java:621–653

Builds a DNSKEY record from a PublicKey

(PublicKey key, int alg)

/** Builds a DNSKEY record from a PublicKey */
static byte []
fromPublicKey(PublicKey key, int alg) throws DNSSECException
{
	switch (alg) {
	case Algorithm.RSAMD5:
	case Algorithm.RSASHA1:
	case Algorithm.RSA_NSEC3_SHA1:
	case Algorithm.RSASHA256:
	case Algorithm.RSASHA512:
		if (! (key instanceof RSAPublicKey))
			throw new IncompatibleKeyException();
		return fromRSAPublicKey((RSAPublicKey) key);
	case Algorithm.DSA:
	case Algorithm.DSA_NSEC3_SHA1:
		if (! (key instanceof DSAPublicKey))
			throw new IncompatibleKeyException();
		return fromDSAPublicKey((DSAPublicKey) key);
	case Algorithm.ECC_GOST:
		if (! (key instanceof ECPublicKey))
			throw new IncompatibleKeyException();
		return fromECGOSTPublicKey((ECPublicKey) key, GOST);
	case Algorithm.ECDSAP256SHA256:
		if (! (key instanceof ECPublicKey))
			throw new IncompatibleKeyException();
		return fromECDSAPublicKey((ECPublicKey) key, ECDSA_P256);
	case Algorithm.ECDSAP384SHA384:
		if (! (key instanceof ECPublicKey))
			throw new IncompatibleKeyException();
		return fromECDSAPublicKey((ECPublicKey) key, ECDSA_P384);
	default:
		throw new UnsupportedAlgorithmException(alg);
	}
}

/**
 * Convert an algorithm number to the corresponding JCA string.