/*

 * Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package sun.security.util;

import java.util.List;

import java.util.Locale;

import java.util.Objects;

import java.util.concurrent.ConcurrentHashMap;

/**

 * This utility class maps algorithm name to the corresponding oid strings.

 * NOTE: for 100% backward compatibility, the standard name for the enum

 * is determined by existing usage and may be in lowercase/uppercase in

 * order to match existing output.

 */

public enum KnownOIDs {

    // X.500 Attributes 2.5.4.*

    CommonName("2.5.4.3"),

    Surname("2.5.4.4"),

    SerialNumber("2.5.4.5"),

    CountryName("2.5.4.6"),

    LocalityName("2.5.4.7"),

    StateName("2.5.4.8"),

    StreetAddress("2.5.4.9"),

    OrgName("2.5.4.10"),

    OrgUnitName("2.5.4.11"),

    Title("2.5.4.12"),

    GivenName("2.5.4.42"),

    Initials("2.5.4.43"),

    GenerationQualifier("2.5.4.44"),

    DNQualifier("2.5.4.46"),

    // Certificate Extension 2.5.29.*

    SubjectDirectoryAttributes("2.5.29.9"),

    SubjectKeyID("2.5.29.14"),

    KeyUsage("2.5.29.15"),

    PrivateKeyUsage("2.5.29.16"),

    SubjectAlternativeName("2.5.29.17"),

    IssuerAlternativeName("2.5.29.18"),

    BasicConstraints("2.5.29.19"),

    CRLNumber("2.5.29.20"),

    ReasonCode("2.5.29.21"),

    HoldInstructionCode("2.5.29.23"),

    InvalidityDate("2.5.29.24"),

    DeltaCRLIndicator("2.5.29.27"),

    IssuingDistributionPoint("2.5.29.28"),

    CertificateIssuer("2.5.29.29"),

    NameConstraints("2.5.29.30"),

    CRLDistributionPoints("2.5.29.31"),

    CertificatePolicies("2.5.29.32"),

    CE_CERT_POLICIES_ANY("2.5.29.32.0"),

    PolicyMappings("2.5.29.33"),

    AuthorityKeyID("2.5.29.35"),

    PolicyConstraints("2.5.29.36"),

    extendedKeyUsage("2.5.29.37"),

    anyExtendedKeyUsage("2.5.29.37.0"),

    FreshestCRL("2.5.29.46"),

    InhibitAnyPolicy("2.5.29.54"),

    // PKIX 1.3.6.1.5.5.7.

    AuthInfoAccess("1.3.6.1.5.5.7.1.1"),

    SubjectInfoAccess("1.3.6.1.5.5.7.1.11"),

    // key usage purposes - PKIX.3.*

    serverAuth("1.3.6.1.5.5.7.3.1"),

    clientAuth("1.3.6.1.5.5.7.3.2"),

    codeSigning("1.3.6.1.5.5.7.3.3"),

    emailProtection("1.3.6.1.5.5.7.3.4"),

    ipsecEndSystem("1.3.6.1.5.5.7.3.5"),

    ipsecTunnel("1.3.6.1.5.5.7.3.6"),

    ipsecUser("1.3.6.1.5.5.7.3.7"),

    KP_TimeStamping("1.3.6.1.5.5.7.3.8", "timeStamping") {

        @Override

        boolean registerNames() { return false; }

    },

    OCSPSigning("1.3.6.1.5.5.7.3.9"),

    // access descriptors - PKIX.48.*

    OCSP("1.3.6.1.5.5.7.48.1"),

    OCSPBasicResponse("1.3.6.1.5.5.7.48.1.1"),

    OCSPNonceExt("1.3.6.1.5.5.7.48.1.2"),

    OCSPNoCheck("1.3.6.1.5.5.7.48.1.5"),

    caIssuers("1.3.6.1.5.5.7.48.2"),

    AD_TimeStamping("1.3.6.1.5.5.7.48.3", "timeStamping") {

        @Override

        boolean registerNames() { return false; }

    },

    caRepository("1.3.6.1.5.5.7.48.5", "caRepository"),

    // NIST --

    // AES 2.16.840.1.101.3.4.1.*

    AES("2.16.840.1.101.3.4.1"),

    AES_128$ECB$NoPadding("2.16.840.1.101.3.4.1.1", "AES_128/ECB/NoPadding"),

    AES_128$CBC$NoPadding("2.16.840.1.101.3.4.1.2", "AES_128/CBC/NoPadding"),

    AES_128$OFB$NoPadding("2.16.840.1.101.3.4.1.3", "AES_128/OFB/NoPadding"),

    AES_128$CFB$NoPadding("2.16.840.1.101.3.4.1.4", "AES_128/CFB/NoPadding"),

    AES_128$KW$NoPadding("2.16.840.1.101.3.4.1.5", "AES_128/KW/NoPadding",

            "AESWrap_128"),

    AES_128$GCM$NoPadding("2.16.840.1.101.3.4.1.6", "AES_128/GCM/NoPadding"),

    AES_128$KWP$NoPadding("2.16.840.1.101.3.4.1.8", "AES_128/KWP/NoPadding",

            "AESWrapPad_128"),

    AES_192$ECB$NoPadding("2.16.840.1.101.3.4.1.21", "AES_192/ECB/NoPadding"),

    AES_192$CBC$NoPadding("2.16.840.1.101.3.4.1.22", "AES_192/CBC/NoPadding"),

    AES_192$OFB$NoPadding("2.16.840.1.101.3.4.1.23", "AES_192/OFB/NoPadding"),

    AES_192$CFB$NoPadding("2.16.840.1.101.3.4.1.24", "AES_192/CFB/NoPadding"),

    AES_192$KW$NoPadding("2.16.840.1.101.3.4.1.25", "AES_192/KW/NoPadding",

            "AESWrap_192"),

    AES_192$GCM$NoPadding("2.16.840.1.101.3.4.1.26", "AES_192/GCM/NoPadding"),

    AES_192$KWP$NoPadding("2.16.840.1.101.3.4.1.28", "AES_192/KWP/NoPadding",

            "AESWrapPad_192"),

    AES_256$ECB$NoPadding("2.16.840.1.101.3.4.1.41", "AES_256/ECB/NoPadding"),

    AES_256$CBC$NoPadding("2.16.840.1.101.3.4.1.42", "AES_256/CBC/NoPadding"),

    AES_256$OFB$NoPadding("2.16.840.1.101.3.4.1.43", "AES_256/OFB/NoPadding"),

    AES_256$CFB$NoPadding("2.16.840.1.101.3.4.1.44", "AES_256/CFB/NoPadding"),

    AES_256$KW$NoPadding("2.16.840.1.101.3.4.1.45", "AES_256/KW/NoPadding",

            "AESWrap_256"),

    AES_256$GCM$NoPadding("2.16.840.1.101.3.4.1.46", "AES_256/GCM/NoPadding"),

    AES_256$KWP$NoPadding("2.16.840.1.101.3.4.1.48", "AES_256/KWP/NoPadding",

            "AESWrapPad_256"),

    // hashAlgs 2.16.840.1.101.3.4.2.*

    SHA_256("2.16.840.1.101.3.4.2.1", "SHA-256", "SHA256"),

    SHA_384("2.16.840.1.101.3.4.2.2", "SHA-384", "SHA384"),

    SHA_512("2.16.840.1.101.3.4.2.3", "SHA-512", "SHA512"),

    SHA_224("2.16.840.1.101.3.4.2.4", "SHA-224", "SHA224"),

    SHA_512$224("2.16.840.1.101.3.4.2.5", "SHA-512/224", "SHA512/224"),

    SHA_512$256("2.16.840.1.101.3.4.2.6", "SHA-512/256", "SHA512/256"),

    SHA3_224("2.16.840.1.101.3.4.2.7", "SHA3-224"),

    SHA3_256("2.16.840.1.101.3.4.2.8", "SHA3-256"),

    SHA3_384("2.16.840.1.101.3.4.2.9", "SHA3-384"),

    SHA3_512("2.16.840.1.101.3.4.2.10", "SHA3-512"),

    SHAKE128("2.16.840.1.101.3.4.2.11"),

    SHAKE256("2.16.840.1.101.3.4.2.12"),

    HmacSHA3_224("2.16.840.1.101.3.4.2.13", "HmacSHA3-224"),

    HmacSHA3_256("2.16.840.1.101.3.4.2.14", "HmacSHA3-256"),

    HmacSHA3_384("2.16.840.1.101.3.4.2.15", "HmacSHA3-384"),

    HmacSHA3_512("2.16.840.1.101.3.4.2.16", "HmacSHA3-512"),

    SHAKE128_LEN("2.16.840.1.101.3.4.2.17", "SHAKE128-LEN"),

    SHAKE256_LEN("2.16.840.1.101.3.4.2.18", "SHAKE256-LEN"),

    // sigAlgs 2.16.840.1.101.3.4.3.*

    SHA224withDSA("2.16.840.1.101.3.4.3.1"),

    SHA256withDSA("2.16.840.1.101.3.4.3.2"),

    SHA384withDSA("2.16.840.1.101.3.4.3.3"),

    SHA512withDSA("2.16.840.1.101.3.4.3.4"),

    SHA3_224withDSA("2.16.840.1.101.3.4.3.5", "SHA3-224withDSA"),

    SHA3_256withDSA("2.16.840.1.101.3.4.3.6", "SHA3-256withDSA"),

    SHA3_384withDSA("2.16.840.1.101.3.4.3.7", "SHA3-384withDSA"),

    SHA3_512withDSA("2.16.840.1.101.3.4.3.8", "SHA3-512withDSA"),

    SHA3_224withECDSA("2.16.840.1.101.3.4.3.9", "SHA3-224withECDSA"),

    SHA3_256withECDSA("2.16.840.1.101.3.4.3.10", "SHA3-256withECDSA"),

    SHA3_384withECDSA("2.16.840.1.101.3.4.3.11", "SHA3-384withECDSA"),

    SHA3_512withECDSA("2.16.840.1.101.3.4.3.12", "SHA3-512withECDSA"),

    SHA3_224withRSA("2.16.840.1.101.3.4.3.13", "SHA3-224withRSA"),

    SHA3_256withRSA("2.16.840.1.101.3.4.3.14", "SHA3-256withRSA"),

    SHA3_384withRSA("2.16.840.1.101.3.4.3.15", "SHA3-384withRSA"),

    SHA3_512withRSA("2.16.840.1.101.3.4.3.16", "SHA3-512withRSA"),

    // RSASecurity

    // PKCS1 1.2.840.113549.1.1.*

    PKCS1("1.2.840.113549.1.1", "RSA") { // RSA KeyPairGenerator and KeyFactory

        @Override

        boolean registerNames() { return false; }

    },

    RSA("1.2.840.113549.1.1.1"), // RSA encryption

    MD2withRSA("1.2.840.113549.1.1.2"),

    MD5withRSA("1.2.840.113549.1.1.4"),

    SHA1withRSA("1.2.840.113549.1.1.5"),

    OAEP("1.2.840.113549.1.1.7"),

    MGF1("1.2.840.113549.1.1.8"),

    PSpecified("1.2.840.113549.1.1.9"),

    RSASSA_PSS("1.2.840.113549.1.1.10", "RSASSA-PSS", "PSS"),

    SHA256withRSA("1.2.840.113549.1.1.11"),

    SHA384withRSA("1.2.840.113549.1.1.12"),

    SHA512withRSA("1.2.840.113549.1.1.13"),

    SHA224withRSA("1.2.840.113549.1.1.14"),

    SHA512$224withRSA("1.2.840.113549.1.1.15", "SHA512/224withRSA"),

    SHA512$256withRSA("1.2.840.113549.1.1.16", "SHA512/256withRSA"),

    // PKCS3 1.2.840.113549.1.3.*

    DiffieHellman("1.2.840.113549.1.3.1", "DiffieHellman", "DH"),

    // PKCS5 1.2.840.113549.1.5.*

    PBEWithMD5AndDES("1.2.840.113549.1.5.3"),

    PBEWithMD5AndRC2("1.2.840.113549.1.5.6"),

    PBEWithSHA1AndDES("1.2.840.113549.1.5.10"),

    PBEWithSHA1AndRC2("1.2.840.113549.1.5.11"),

    PBKDF2WithHmacSHA1("1.2.840.113549.1.5.12"),

    PBES2("1.2.840.113549.1.5.13"),

    // PKCS7 1.2.840.113549.1.7.*

    PKCS7("1.2.840.113549.1.7"),

    Data("1.2.840.113549.1.7.1"),

    SignedData("1.2.840.113549.1.7.2"),

    JDK_OLD_Data("1.2.840.1113549.1.7.1"), // extra 1 in 4th component

    JDK_OLD_SignedData("1.2.840.1113549.1.7.2"),

    EnvelopedData("1.2.840.113549.1.7.3"),

    SignedAndEnvelopedData("1.2.840.113549.1.7.4"),

    DigestedData("1.2.840.113549.1.7.5"),

    EncryptedData("1.2.840.113549.1.7.6"),

    // PKCS9 1.2.840.113549.1.9.*

    EmailAddress("1.2.840.113549.1.9.1"),

    UnstructuredName("1.2.840.113549.1.9.2"),

    ContentType("1.2.840.113549.1.9.3"),

    MessageDigest("1.2.840.113549.1.9.4"),

    SigningTime("1.2.840.113549.1.9.5"),

    CounterSignature("1.2.840.113549.1.9.6"),

    ChallengePassword("1.2.840.113549.1.9.7"),

    UnstructuredAddress("1.2.840.113549.1.9.8"),

    ExtendedCertificateAttributes("1.2.840.113549.1.9.9"),

    IssuerAndSerialNumber("1.2.840.113549.1.9.10"),

    ExtensionRequest("1.2.840.113549.1.9.14"),

    SMIMECapability("1.2.840.113549.1.9.15"),

    TimeStampTokenInfo("1.2.840.113549.1.9.16.1.4"),

    SigningCertificate("1.2.840.113549.1.9.16.2.12"),

    SignatureTimestampToken("1.2.840.113549.1.9.16.2.14"),

    CHACHA20_POLY1305("1.2.840.113549.1.9.16.3.18", "CHACHA20-POLY1305"),

    FriendlyName("1.2.840.113549.1.9.20"),

    LocalKeyID("1.2.840.113549.1.9.21"),

    CertTypeX509("1.2.840.113549.1.9.22.1"),

    CMSAlgorithmProtection("1.2.840.113549.1.9.52"),

    // PKCS12 1.2.840.113549.1.12.*

    PBEWithSHA1AndRC4_128("1.2.840.113549.1.12.1.1"),

    PBEWithSHA1AndRC4_40("1.2.840.113549.1.12.1.2"),

    PBEWithSHA1AndDESede("1.2.840.113549.1.12.1.3"),

    PBEWithSHA1AndRC2_128("1.2.840.113549.1.12.1.5"),

    PBEWithSHA1AndRC2_40("1.2.840.113549.1.12.1.6"),

    PKCS8ShroudedKeyBag("1.2.840.113549.1.12.10.1.2"),

    CertBag("1.2.840.113549.1.12.10.1.3"),

    SecretBag("1.2.840.113549.1.12.10.1.5"),

    // digestAlgs 1.2.840.113549.2.*

    MD2("1.2.840.113549.2.2"),

    MD5("1.2.840.113549.2.5"),

    HmacSHA1("1.2.840.113549.2.7"),

    HmacSHA224("1.2.840.113549.2.8"),

    HmacSHA256("1.2.840.113549.2.9"),

    HmacSHA384("1.2.840.113549.2.10"),

    HmacSHA512("1.2.840.113549.2.11"),

    HmacSHA512$224("1.2.840.113549.2.12", "HmacSHA512/224"),

    HmacSHA512$256("1.2.840.113549.2.13", "HmacSHA512/256"),

    // encryptionAlgs 1.2.840.113549.3.*

    RC2$CBC$PKCS5Padding("1.2.840.113549.3.2", "RC2/CBC/PKCS5Padding"),

    ARCFOUR("1.2.840.113549.3.4", "ARCFOUR", "RC4"),

    DESede$CBC$NoPadding("1.2.840.113549.3.7", "DESede/CBC/NoPadding"),

    RC5$CBC$PKCS5Padding("1.2.840.113549.3.9", "RC5/CBC/PKCS5Padding"),

    // ANSI --

    // X9 1.2.840.10040.4.*

    DSA("1.2.840.10040.4.1"),

    SHA1withDSA("1.2.840.10040.4.3", "SHA1withDSA", "DSS"),

    // X9.62 1.2.840.10045.*

    EC("1.2.840.10045.2.1"),

    //c2pnb163v1("1.2.840.10045.3.0.1", "X9.62 c2pnb163v1"),

    //c2pnb163v2("1.2.840.10045.3.0.2", "X9.62 c2pnb163v2"),

    //c2pnb163v3("1.2.840.10045.3.0.3", "X9.62 c2pnb163v3"),

    //c2pnb176w1("1.2.840.10045.3.0.4", "X9.62 c2pnb176w1"),

    c2tnb191v1("1.2.840.10045.3.0.5", "X9.62 c2tnb191v1"),

    c2tnb191v2("1.2.840.10045.3.0.6", "X9.62 c2tnb191v2"),

    c2tnb191v3("1.2.840.10045.3.0.7", "X9.62 c2tnb191v3"),

    //c2pnb208w1("1.2.840.10045.3.0.10", "X9.62 c2pnb208w1"),

    c2tnb239v1("1.2.840.10045.3.0.11", "X9.62 c2tnb239v1"),

    c2tnb239v2("1.2.840.10045.3.0.12", "X9.62 c2tnb239v2"),

    c2tnb239v3("1.2.840.10045.3.0.13", "X9.62 c2tnb239v3"),

    //c2pnb272w1("1.2.840.10045.3.0.16", "X9.62 c2pnb272w1"),

    //c2pnb304w1("1.2.840.10045.3.0.17", "X9.62 c2pnb304w1"),

    c2tnb359v1("1.2.840.10045.3.0.18", "X9.62 c2tnb359v1"),

    //c2pnb368w1("1.2.840.10045.3.0.19", "X9.62 c2pnb368w1"),

    c2tnb431r1("1.2.840.10045.3.0.20", "X9.62 c2tnb431r1"),

    secp192r1("1.2.840.10045.3.1.1",

            "secp192r1", "NIST P-192", "X9.62 prime192v1"),

    prime192v2("1.2.840.10045.3.1.2", "X9.62 prime192v2"),

    prime192v3("1.2.840.10045.3.1.3", "X9.62 prime192v3"),

    prime239v1("1.2.840.10045.3.1.4", "X9.62 prime239v1"),

    prime239v2("1.2.840.10045.3.1.5", "X9.62 prime239v2"),

    prime239v3("1.2.840.10045.3.1.6", "X9.62 prime239v3"),

    secp256r1("1.2.840.10045.3.1.7",

            "secp256r1", "NIST P-256", "X9.62 prime256v1"),

    SHA1withECDSA("1.2.840.10045.4.1"),

    SHA224withECDSA("1.2.840.10045.4.3.1"),

    SHA256withECDSA("1.2.840.10045.4.3.2"),

    SHA384withECDSA("1.2.840.10045.4.3.3"),

    SHA512withECDSA("1.2.840.10045.4.3.4"),

    SpecifiedSHA2withECDSA("1.2.840.10045.4.3"),

    // X9.42 1.2.840.10046.2.*

    X942_DH("1.2.840.10046.2.1", "DiffieHellman") { // unused by JDK providers

        @Override

        boolean registerNames() { return false; }

    },

    // Teletrust 1.3.36.*

    brainpoolP160r1("1.3.36.3.3.2.8.1.1.1"),

    brainpoolP192r1("1.3.36.3.3.2.8.1.1.3"),

    brainpoolP224r1("1.3.36.3.3.2.8.1.1.5"),

    brainpoolP256r1("1.3.36.3.3.2.8.1.1.7"),

    brainpoolP320r1("1.3.36.3.3.2.8.1.1.9"),

    brainpoolP384r1("1.3.36.3.3.2.8.1.1.11"),

    brainpoolP512r1("1.3.36.3.3.2.8.1.1.13"),

    // Certicom 1.3.132.*

    sect163k1("1.3.132.0.1", "sect163k1", "NIST K-163"),

    sect163r1("1.3.132.0.2"),

    sect239k1("1.3.132.0.3"),

    sect113r1("1.3.132.0.4"),

    sect113r2("1.3.132.0.5"),

    secp112r1("1.3.132.0.6"),

    secp112r2("1.3.132.0.7"),

    secp160r1("1.3.132.0.8"),

    secp160k1("1.3.132.0.9"),

    secp256k1("1.3.132.0.10"),

    sect163r2("1.3.132.0.15", "sect163r2", "NIST B-163"),

    sect283k1("1.3.132.0.16", "sect283k1", "NIST K-283"),

    sect283r1("1.3.132.0.17", "sect283r1", "NIST B-283"),

    sect131r1("1.3.132.0.22"),

    sect131r2("1.3.132.0.23"),

    sect193r1("1.3.132.0.24"),

    sect193r2("1.3.132.0.25"),

    sect233k1("1.3.132.0.26", "sect233k1", "NIST K-233"),

    sect233r1("1.3.132.0.27", "sect233r1", "NIST B-233"),

    secp128r1("1.3.132.0.28"),

    secp128r2("1.3.132.0.29"),

    secp160r2("1.3.132.0.30"),

    secp192k1("1.3.132.0.31"),

    secp224k1("1.3.132.0.32"),

    secp224r1("1.3.132.0.33", "secp224r1", "NIST P-224"),

    secp384r1("1.3.132.0.34", "secp384r1", "NIST P-384"),

    secp521r1("1.3.132.0.35", "secp521r1", "NIST P-521"),

    sect409k1("1.3.132.0.36", "sect409k1", "NIST K-409"),

    sect409r1("1.3.132.0.37", "sect409r1", "NIST B-409"),

    sect571k1("1.3.132.0.38", "sect571k1", "NIST K-571"),

    sect571r1("1.3.132.0.39", "sect571r1", "NIST B-571"),

    ECDH("1.3.132.1.12"),

    // OIW secsig 1.3.14.3.*

    OIW_DES_CBC("1.3.14.3.2.7", "DES/CBC", "DES"),

    OIW_DSA("1.3.14.3.2.12", "DSA") {

        @Override

        boolean registerNames() { return false; }

    },

    OIW_JDK_SHA1withDSA("1.3.14.3.2.13", "SHA1withDSA") {

        @Override

        boolean registerNames() { return false; }

    },

    OIW_SHA1withRSA_Odd("1.3.14.3.2.15", "SHA1withRSA") {

        @Override

        boolean registerNames() { return false; }

    },

    DESede("1.3.14.3.2.17", "DESede"),

    SHA_1("1.3.14.3.2.26", "SHA-1", "SHA", "SHA1"),

    OIW_SHA1withDSA("1.3.14.3.2.27", "SHA1withDSA") {

        @Override

        boolean registerNames() { return false; }

    },

    OIW_SHA1withRSA("1.3.14.3.2.29", "SHA1withRSA") {

        @Override

        boolean registerNames() { return false; }

    },

    // Thawte 1.3.101.*

    X25519("1.3.101.110"),

    X448("1.3.101.111"),

    Ed25519("1.3.101.112"),

    Ed448("1.3.101.113"),

    // University College London (UCL) 0.9.2342.19200300.*

    UCL_UserID("0.9.2342.19200300.100.1.1"),

    UCL_DomainComponent("0.9.2342.19200300.100.1.25"),

    // Netscape 2.16.840.1.113730.*

    NETSCAPE_CertType("2.16.840.1.113730.1.1"),

    NETSCAPE_CertSequence("2.16.840.1.113730.2.5"),

    NETSCAPE_ExportApproved("2.16.840.1.113730.4.1"),

    // Oracle 2.16.840.1.113894.*

    ORACLE_TrustedKeyUsage("2.16.840.1.113894.746875.1.1"),

    // Miscellaneous oids below which are legacy, and not well known

    // Consider removing them in future releases when their usage

    // have died out

    ITUX509_RSA("2.5.8.1.1", "RSA") { // unused by JDK providers

                                      // defined in X.509 for RSA keys

        @Override                     // with modulus length as its parameter

        boolean registerNames() { return false; }

    },

    SkipIPAddress("1.3.6.1.4.1.42.2.11.2.1"),

    JAVASOFT_JDKKeyProtector("1.3.6.1.4.1.42.2.17.1.1"),

    JAVASOFT_JCEKeyProtector("1.3.6.1.4.1.42.2.19.1"),

    MICROSOFT_ExportApproved("1.3.6.1.4.1.311.10.3.3");

    private String stdName;

    private String oid;

    private String[] aliases;

    // find the matching enum using either name or oid string

    // return null if no match found

    public static KnownOIDs findMatch(String s) {

        s = s.toUpperCase(Locale.ENGLISH);

        KnownOIDs res = name2enum.get(s);

        if (res == null && debug != null) {

            debug.println("No KnownOIDs enum found for " + s);

        }

        return res;

    }

    private static final Debug debug = Debug.getInstance("jca");

    //private static final java.io.PrintStream debug = System.out;

    private static final ConcurrentHashMap<String, KnownOIDs> name2enum =

            new ConcurrentHashMap<>();

    static {

        if (debug != null) {

            debug.println("Setting up name2enum:");

        }

        for (KnownOIDs o : KnownOIDs.values()) {

            register(o);

        };

    }

    private static void register(KnownOIDs o) {

        KnownOIDs ov = name2enum.put(o.oid, o);

        if (ov != null) {

            throw new RuntimeException("ERROR: Duplicate " + o.oid +

                    " between " + o + " and " + ov);

        } else if (debug != null) {

            debug.println(o.oid + " => " + o.name());

        }

        // only register the stdName and aliases if o.registerNames()

        // returns true

        if (o.registerNames()) {

            String stdNameUpper = o.stdName.toUpperCase(Locale.ENGLISH);

            if (Objects.nonNull(name2enum.put(stdNameUpper, o))) {

                throw new RuntimeException("ERROR: Duplicate " +

                        stdNameUpper + " exists already");

            }

            if (debug != null) {

                debug.println(stdNameUpper + " => " + o.name());

            }

            for (String a :  o.aliases) {

                String aliasUpper = a.toUpperCase(Locale.ENGLISH);

                if (Objects.nonNull(name2enum.put(aliasUpper, o))) {

                    throw new RuntimeException("ERROR: Duplicate " +

                            aliasUpper + " exists already");

                }

                if (debug != null) {

                    debug.println(aliasUpper + " => " + o.name());

                }

            }

        }

    }

    private KnownOIDs(String oid) {

        this.oid = oid;

        this.stdName = name(); // defaults to enum name

        this.aliases = new String[0];

    }

    private KnownOIDs(String oid, String stdName, String ... aliases) {

        this.oid = oid;

        this.stdName = stdName;

        this.aliases = aliases;

    }

    // returns the oid string associated with this enum

    public String value() {

        return oid;

    }

    // returns the user-friendly standard algorithm name

    public String stdName() {

        return stdName;

    }

    // return the internal aliases

    public String[] aliases() {

        return aliases;

    }

    boolean registerNames() {

        return true;

    }

}