001/* 002 * Copyright 2015-2020 the original author or authors 003 * 004 * This software is licensed under the Apache License, Version 2.0, 005 * the GNU Lesser General Public License version 2 or later ("LGPL") 006 * and the WTFPL. 007 * You may choose either license to govern your use of this software only 008 * upon the condition that you accept all of the terms of either 009 * the Apache License 2.0, the LGPL 2.1+ or the WTFPL. 010 */ 011package org.minidns.constants; 012 013import java.util.HashMap; 014import java.util.Map; 015 016public final class DnssecConstants { 017 /** 018 * Do not allow to instantiate DNSSECConstants 019 */ 020 private DnssecConstants() { 021 } 022 023 private static final Map<Byte, SignatureAlgorithm> SIGNATURE_ALGORITHM_LUT = new HashMap<>(); 024 025 /** 026 * DNSSEC Signature Algorithms. 027 * 028 * @see <a href= 029 * "http://www.iana.org/assignments/dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml"> 030 * IANA DNSSEC Algorithm Numbers</a> 031 */ 032 public enum SignatureAlgorithm { 033 @Deprecated 034 RSAMD5(1, "RSA/MD5"), 035 DH(2, "Diffie-Hellman"), 036 DSA(3, "DSA/SHA1"), 037 RSASHA1(5, "RSA/SHA-1"), 038 DSA_NSEC3_SHA1(6, "DSA_NSEC3-SHA1"), 039 RSASHA1_NSEC3_SHA1(7, "RSASHA1-NSEC3-SHA1"), 040 RSASHA256(8, "RSA/SHA-256"), 041 RSASHA512(10, "RSA/SHA-512"), 042 ECC_GOST(12, "GOST R 34.10-2001"), 043 ECDSAP256SHA256(13, "ECDSA Curve P-256 with SHA-256"), 044 ECDSAP384SHA384(14, "ECDSA Curve P-384 with SHA-384"), 045 INDIRECT(252, "Reserved for Indirect Keys"), 046 PRIVATEDNS(253, "private algorithm"), 047 PRIVATEOID(254, "private algorithm oid"), 048 ; 049 050 SignatureAlgorithm(int number, String description) { 051 if (number < 0 || number > 255) { 052 throw new IllegalArgumentException(); 053 } 054 this.number = (byte) number; 055 this.description = description; 056 SIGNATURE_ALGORITHM_LUT.put(this.number, this); 057 } 058 059 public final byte number; 060 public final String description; 061 062 public static SignatureAlgorithm forByte(byte b) { 063 return SIGNATURE_ALGORITHM_LUT.get(b); 064 } 065 } 066 067 private static final Map<Byte, DigestAlgorithm> DELEGATION_DIGEST_LUT = new HashMap<>(); 068 069 /** 070 * DNSSEC Digest Algorithms. 071 * 072 * @see <a href= 073 * "https://www.iana.org/assignments/ds-rr-types/ds-rr-types.xhtml"> 074 * IANA Delegation Signer (DS) Resource Record (RR)</a> 075 */ 076 public enum DigestAlgorithm { 077 SHA1(1, "SHA-1"), 078 SHA256(2, "SHA-256"), 079 GOST(3, "GOST R 34.11-94"), 080 SHA384(4, "SHA-384"), 081 ; 082 083 DigestAlgorithm(int value, String description) { 084 if (value < 0 || value > 255) { 085 throw new IllegalArgumentException(); 086 } 087 this.value = (byte) value; 088 this.description = description; 089 DELEGATION_DIGEST_LUT.put(this.value, this); 090 } 091 092 public final byte value; 093 public final String description; 094 095 public static DigestAlgorithm forByte(byte b) { 096 return DELEGATION_DIGEST_LUT.get(b); 097 } 098 } 099}