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using System;
using System.Collections;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.CryptoPro;
using Org.BouncyCastle.Asn1.Nist;
using Org.BouncyCastle.Asn1.Oiw;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.TeleTrust;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Asn1.X9;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Collections;
namespace Org.BouncyCastle.Ocsp
{
class OcspUtilities
{
private static readonly IDictionary algorithms = Platform.CreateHashtable();
private static readonly IDictionary oids = Platform.CreateHashtable();
private static readonly ISet noParams = new HashSet();
static OcspUtilities()
{
algorithms.Add("MD2WITHRSAENCRYPTION", PkcsObjectIdentifiers.MD2WithRsaEncryption);
algorithms.Add("MD2WITHRSA", PkcsObjectIdentifiers.MD2WithRsaEncryption);
algorithms.Add("MD5WITHRSAENCRYPTION", PkcsObjectIdentifiers.MD5WithRsaEncryption);
algorithms.Add("MD5WITHRSA", PkcsObjectIdentifiers.MD5WithRsaEncryption);
algorithms.Add("SHA1WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha1WithRsaEncryption);
algorithms.Add("SHA-1WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha1WithRsaEncryption);
algorithms.Add("SHA1WITHRSA", PkcsObjectIdentifiers.Sha1WithRsaEncryption);
algorithms.Add("SHA-1WITHRSA", PkcsObjectIdentifiers.Sha1WithRsaEncryption);
algorithms.Add("SHA224WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha224WithRsaEncryption);
algorithms.Add("SHA-224WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha224WithRsaEncryption);
algorithms.Add("SHA224WITHRSA", PkcsObjectIdentifiers.Sha224WithRsaEncryption);
algorithms.Add("SHA-224WITHRSA", PkcsObjectIdentifiers.Sha224WithRsaEncryption);
algorithms.Add("SHA256WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha256WithRsaEncryption);
algorithms.Add("SHA-256WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha256WithRsaEncryption);
algorithms.Add("SHA256WITHRSA", PkcsObjectIdentifiers.Sha256WithRsaEncryption);
algorithms.Add("SHA-256WITHRSA", PkcsObjectIdentifiers.Sha256WithRsaEncryption);
algorithms.Add("SHA384WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha384WithRsaEncryption);
algorithms.Add("SHA-384WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha384WithRsaEncryption);
algorithms.Add("SHA384WITHRSA", PkcsObjectIdentifiers.Sha384WithRsaEncryption);
algorithms.Add("SHA-384WITHRSA", PkcsObjectIdentifiers.Sha384WithRsaEncryption);
algorithms.Add("SHA512WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha512WithRsaEncryption);
algorithms.Add("SHA-512WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha512WithRsaEncryption);
algorithms.Add("SHA512WITHRSA", PkcsObjectIdentifiers.Sha512WithRsaEncryption);
algorithms.Add("SHA-512WITHRSA", PkcsObjectIdentifiers.Sha512WithRsaEncryption);
algorithms.Add("SHA512(224)WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha512_224WithRSAEncryption);
algorithms.Add("SHA-512(224)WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha512_224WithRSAEncryption);
algorithms.Add("SHA512(224)WITHRSA", PkcsObjectIdentifiers.Sha512_224WithRSAEncryption);
algorithms.Add("SHA-512(224)WITHRSA", PkcsObjectIdentifiers.Sha512_224WithRSAEncryption);
algorithms.Add("SHA512(256)WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha512_256WithRSAEncryption);
algorithms.Add("SHA-512(256)WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha512_256WithRSAEncryption);
algorithms.Add("SHA512(256)WITHRSA", PkcsObjectIdentifiers.Sha512_256WithRSAEncryption);
algorithms.Add("SHA-512(256)WITHRSA", PkcsObjectIdentifiers.Sha512_256WithRSAEncryption);
algorithms.Add("RIPEMD160WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160);
algorithms.Add("RIPEMD160WITHRSA", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160);
algorithms.Add("RIPEMD128WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128);
algorithms.Add("RIPEMD128WITHRSA", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128);
algorithms.Add("RIPEMD256WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256);
algorithms.Add("RIPEMD256WITHRSA", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256);
algorithms.Add("SHA1WITHDSA", X9ObjectIdentifiers.IdDsaWithSha1);
algorithms.Add("DSAWITHSHA1", X9ObjectIdentifiers.IdDsaWithSha1);
algorithms.Add("SHA224WITHDSA", NistObjectIdentifiers.DsaWithSha224);
algorithms.Add("SHA256WITHDSA", NistObjectIdentifiers.DsaWithSha256);
algorithms.Add("SHA1WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha1);
algorithms.Add("ECDSAWITHSHA1", X9ObjectIdentifiers.ECDsaWithSha1);
algorithms.Add("SHA224WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha224);
algorithms.Add("SHA256WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha256);
algorithms.Add("SHA384WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha384);
algorithms.Add("SHA512WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha512);
algorithms.Add("GOST3411WITHGOST3410", CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94);
algorithms.Add("GOST3411WITHGOST3410-94", CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94);
oids.Add(PkcsObjectIdentifiers.MD2WithRsaEncryption, "MD2WITHRSA");
oids.Add(PkcsObjectIdentifiers.MD5WithRsaEncryption, "MD5WITHRSA");
oids.Add(PkcsObjectIdentifiers.Sha1WithRsaEncryption, "SHA1WITHRSA");
oids.Add(PkcsObjectIdentifiers.Sha224WithRsaEncryption, "SHA224WITHRSA");
oids.Add(PkcsObjectIdentifiers.Sha256WithRsaEncryption, "SHA256WITHRSA");
oids.Add(PkcsObjectIdentifiers.Sha384WithRsaEncryption, "SHA384WITHRSA");
oids.Add(PkcsObjectIdentifiers.Sha512WithRsaEncryption, "SHA512WITHRSA");
oids.Add(PkcsObjectIdentifiers.Sha512_224WithRSAEncryption, "SHA512(224)WITHRSA");
oids.Add(PkcsObjectIdentifiers.Sha512_256WithRSAEncryption, "SHA512(256)WITHRSA");
oids.Add(TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160, "RIPEMD160WITHRSA");
oids.Add(TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128, "RIPEMD128WITHRSA");
oids.Add(TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256, "RIPEMD256WITHRSA");
oids.Add(X9ObjectIdentifiers.IdDsaWithSha1, "SHA1WITHDSA");
oids.Add(NistObjectIdentifiers.DsaWithSha224, "SHA224WITHDSA");
oids.Add(NistObjectIdentifiers.DsaWithSha256, "SHA256WITHDSA");
oids.Add(X9ObjectIdentifiers.ECDsaWithSha1, "SHA1WITHECDSA");
oids.Add(X9ObjectIdentifiers.ECDsaWithSha224, "SHA224WITHECDSA");
oids.Add(X9ObjectIdentifiers.ECDsaWithSha256, "SHA256WITHECDSA");
oids.Add(X9ObjectIdentifiers.ECDsaWithSha384, "SHA384WITHECDSA");
oids.Add(X9ObjectIdentifiers.ECDsaWithSha512, "SHA512WITHECDSA");
oids.Add(CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94, "GOST3411WITHGOST3410");
oids.Add(OiwObjectIdentifiers.MD5WithRsa, "MD5WITHRSA");
oids.Add(OiwObjectIdentifiers.Sha1WithRsa, "SHA1WITHRSA");
oids.Add(OiwObjectIdentifiers.DsaWithSha1, "SHA1WITHDSA");
//
// According to RFC 3279, the ASN.1 encoding SHALL (id-dsa-with-sha1) or MUST (ecdsa-with-SHA*) omit the parameters field.
// The parameters field SHALL be NULL for RSA based signature algorithms.
//
noParams.Add(X9ObjectIdentifiers.ECDsaWithSha1);
noParams.Add(X9ObjectIdentifiers.ECDsaWithSha224);
noParams.Add(X9ObjectIdentifiers.ECDsaWithSha256);
noParams.Add(X9ObjectIdentifiers.ECDsaWithSha384);
noParams.Add(X9ObjectIdentifiers.ECDsaWithSha512);
noParams.Add(X9ObjectIdentifiers.IdDsaWithSha1);
noParams.Add(OiwObjectIdentifiers.DsaWithSha1);
noParams.Add(NistObjectIdentifiers.DsaWithSha224);
noParams.Add(NistObjectIdentifiers.DsaWithSha256);
}
internal static DerObjectIdentifier GetAlgorithmOid(
string algorithmName)
{
algorithmName = Platform.ToUpperInvariant(algorithmName);
if (algorithms.Contains(algorithmName))
{
return (DerObjectIdentifier)algorithms[algorithmName];
}
return new DerObjectIdentifier(algorithmName);
}
internal static string GetAlgorithmName(
DerObjectIdentifier oid)
{
if (oids.Contains(oid))
{
return (string)oids[oid];
}
return oid.Id;
}
internal static AlgorithmIdentifier GetSigAlgID(
DerObjectIdentifier sigOid)
{
if (noParams.Contains(sigOid))
{
return new AlgorithmIdentifier(sigOid);
}
return new AlgorithmIdentifier(sigOid, DerNull.Instance);
}
internal static IEnumerable AlgNames
{
get { return new EnumerableProxy(algorithms.Keys); }
}
}
}
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