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183
iTechSharp/srcbc/x509/X509Utilities.cs
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183
iTechSharp/srcbc/x509/X509Utilities.cs
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using System;
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using System.Collections;
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using System.Globalization;
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using System.IO;
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using Org.BouncyCastle.Asn1;
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using Org.BouncyCastle.Asn1.CryptoPro;
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using Org.BouncyCastle.Asn1.Nist;
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using Org.BouncyCastle.Asn1.Oiw;
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using Org.BouncyCastle.Asn1.Pkcs;
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using Org.BouncyCastle.Asn1.TeleTrust;
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using Org.BouncyCastle.Asn1.X509;
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using Org.BouncyCastle.Asn1.X9;
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Parameters;
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using Org.BouncyCastle.Security;
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using Org.BouncyCastle.Utilities.Collections;
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namespace Org.BouncyCastle.X509
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{
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internal class X509Utilities
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{
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private static readonly Hashtable algorithms = new Hashtable();
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private static readonly Hashtable exParams = new Hashtable();
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private static readonly ISet noParams = new HashSet();
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static X509Utilities()
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{
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algorithms.Add("MD2WITHRSAENCRYPTION", PkcsObjectIdentifiers.MD2WithRsaEncryption);
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algorithms.Add("MD2WITHRSA", PkcsObjectIdentifiers.MD2WithRsaEncryption);
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algorithms.Add("MD5WITHRSAENCRYPTION", PkcsObjectIdentifiers.MD5WithRsaEncryption);
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algorithms.Add("MD5WITHRSA", PkcsObjectIdentifiers.MD5WithRsaEncryption);
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algorithms.Add("SHA1WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha1WithRsaEncryption);
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algorithms.Add("SHA1WITHRSA", PkcsObjectIdentifiers.Sha1WithRsaEncryption);
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algorithms.Add("SHA224WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha224WithRsaEncryption);
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algorithms.Add("SHA224WITHRSA", PkcsObjectIdentifiers.Sha224WithRsaEncryption);
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algorithms.Add("SHA256WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha256WithRsaEncryption);
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algorithms.Add("SHA256WITHRSA", PkcsObjectIdentifiers.Sha256WithRsaEncryption);
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algorithms.Add("SHA384WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha384WithRsaEncryption);
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algorithms.Add("SHA384WITHRSA", PkcsObjectIdentifiers.Sha384WithRsaEncryption);
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algorithms.Add("SHA512WITHRSAENCRYPTION", PkcsObjectIdentifiers.Sha512WithRsaEncryption);
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algorithms.Add("SHA512WITHRSA", PkcsObjectIdentifiers.Sha512WithRsaEncryption);
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algorithms.Add("SHA1WITHRSAANDMGF1", PkcsObjectIdentifiers.IdRsassaPss);
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algorithms.Add("SHA224WITHRSAANDMGF1", PkcsObjectIdentifiers.IdRsassaPss);
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algorithms.Add("SHA256WITHRSAANDMGF1", PkcsObjectIdentifiers.IdRsassaPss);
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algorithms.Add("SHA384WITHRSAANDMGF1", PkcsObjectIdentifiers.IdRsassaPss);
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algorithms.Add("SHA512WITHRSAANDMGF1", PkcsObjectIdentifiers.IdRsassaPss);
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algorithms.Add("RIPEMD160WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160);
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algorithms.Add("RIPEMD160WITHRSA", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160);
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algorithms.Add("RIPEMD128WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128);
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algorithms.Add("RIPEMD128WITHRSA", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128);
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algorithms.Add("RIPEMD256WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256);
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algorithms.Add("RIPEMD256WITHRSA", TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256);
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algorithms.Add("SHA1WITHDSA", X9ObjectIdentifiers.IdDsaWithSha1);
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algorithms.Add("DSAWITHSHA1", X9ObjectIdentifiers.IdDsaWithSha1);
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algorithms.Add("SHA224WITHDSA", NistObjectIdentifiers.DsaWithSha224);
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algorithms.Add("SHA256WITHDSA", NistObjectIdentifiers.DsaWithSha256);
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algorithms.Add("SHA1WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha1);
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algorithms.Add("ECDSAWITHSHA1", X9ObjectIdentifiers.ECDsaWithSha1);
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algorithms.Add("SHA224WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha224);
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algorithms.Add("SHA256WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha256);
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algorithms.Add("SHA384WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha384);
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algorithms.Add("SHA512WITHECDSA", X9ObjectIdentifiers.ECDsaWithSha512);
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algorithms.Add("GOST3411WITHGOST3410", CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94);
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algorithms.Add("GOST3411WITHGOST3410-94", CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94);
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algorithms.Add("GOST3411WITHECGOST3410", CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001);
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algorithms.Add("GOST3411WITHECGOST3410-2001", CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001);
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algorithms.Add("GOST3411WITHGOST3410-2001", CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001);
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//
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// According to RFC 3279, the ASN.1 encoding SHALL (id-dsa-with-sha1) or MUST (ecdsa-with-SHA*) omit the parameters field.
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// The parameters field SHALL be NULL for RSA based signature algorithms.
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//
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noParams.Add(X9ObjectIdentifiers.ECDsaWithSha1);
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noParams.Add(X9ObjectIdentifiers.ECDsaWithSha224);
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noParams.Add(X9ObjectIdentifiers.ECDsaWithSha256);
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noParams.Add(X9ObjectIdentifiers.ECDsaWithSha384);
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noParams.Add(X9ObjectIdentifiers.ECDsaWithSha512);
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noParams.Add(X9ObjectIdentifiers.IdDsaWithSha1);
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noParams.Add(NistObjectIdentifiers.DsaWithSha224);
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noParams.Add(NistObjectIdentifiers.DsaWithSha256);
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//
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// RFC 4491
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//
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noParams.Add(CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94);
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noParams.Add(CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001);
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//
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// explicit params
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//
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AlgorithmIdentifier sha1AlgId = new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1, DerNull.Instance);
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exParams.Add("SHA1WITHRSAANDMGF1", CreatePssParams(sha1AlgId, 20));
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AlgorithmIdentifier sha224AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha224, DerNull.Instance);
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exParams.Add("SHA224WITHRSAANDMGF1", CreatePssParams(sha224AlgId, 28));
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AlgorithmIdentifier sha256AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha256, DerNull.Instance);
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exParams.Add("SHA256WITHRSAANDMGF1", CreatePssParams(sha256AlgId, 32));
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AlgorithmIdentifier sha384AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha384, DerNull.Instance);
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exParams.Add("SHA384WITHRSAANDMGF1", CreatePssParams(sha384AlgId, 48));
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AlgorithmIdentifier sha512AlgId = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha512, DerNull.Instance);
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exParams.Add("SHA512WITHRSAANDMGF1", CreatePssParams(sha512AlgId, 64));
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}
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private static RsassaPssParameters CreatePssParams(
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AlgorithmIdentifier hashAlgId,
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int saltSize)
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{
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return new RsassaPssParameters(
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hashAlgId,
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new AlgorithmIdentifier(PkcsObjectIdentifiers.IdMgf1, hashAlgId),
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new DerInteger(saltSize),
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new DerInteger(1));
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}
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internal static DerObjectIdentifier GetAlgorithmOid(
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string algorithmName)
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{
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algorithmName = algorithmName.ToUpper(CultureInfo.InvariantCulture);
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if (algorithms.ContainsKey(algorithmName))
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{
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return (DerObjectIdentifier) algorithms[algorithmName];
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}
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return new DerObjectIdentifier(algorithmName);
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}
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internal static AlgorithmIdentifier GetSigAlgID(
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DerObjectIdentifier sigOid,
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string algorithmName)
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{
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if (noParams.Contains(sigOid))
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{
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return new AlgorithmIdentifier(sigOid);
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}
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algorithmName = algorithmName.ToUpper(CultureInfo.InvariantCulture);
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if (exParams.ContainsKey(algorithmName))
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{
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return new AlgorithmIdentifier(sigOid, (Asn1Encodable) exParams[algorithmName]);
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}
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return new AlgorithmIdentifier(sigOid, DerNull.Instance);
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}
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internal static IEnumerable GetAlgNames()
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{
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return new EnumerableProxy(algorithms.Keys);
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}
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internal static byte[] GetSignatureForObject(
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DerObjectIdentifier sigOid, // TODO Redundant now?
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string sigName,
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AsymmetricKeyParameter privateKey,
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SecureRandom random,
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Asn1Encodable ae)
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{
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if (sigOid == null)
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throw new ArgumentNullException("sigOid");
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ISigner sig = SignerUtilities.GetSigner(sigName);
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if (random != null)
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{
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sig.Init(true, new ParametersWithRandom(privateKey, random));
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}
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else
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{
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sig.Init(true, privateKey);
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}
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byte[] encoded = ae.GetDerEncoded();
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sig.BlockUpdate(encoded, 0, encoded.Length);
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return sig.GenerateSignature();
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}
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}
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}
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