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Diffstat (limited to 'crypto/src/security/SignerUtilities.cs')
| -rw-r--r-- | crypto/src/security/SignerUtilities.cs | 549 |
1 files changed, 549 insertions, 0 deletions
diff --git a/crypto/src/security/SignerUtilities.cs b/crypto/src/security/SignerUtilities.cs new file mode 100644 index 000000000..136361532 --- /dev/null +++ b/crypto/src/security/SignerUtilities.cs @@ -0,0 +1,549 @@ +using System; +using System.Collections; +using System.IO; + +using Org.BouncyCastle.Asn1; +using Org.BouncyCastle.Asn1.CryptoPro; +using Org.BouncyCastle.Asn1.Nist; +using Org.BouncyCastle.Asn1.Pkcs; +using Org.BouncyCastle.Asn1.TeleTrust; +using Org.BouncyCastle.Asn1.X509; +using Org.BouncyCastle.Asn1.X9; +using Org.BouncyCastle.Security; +using Org.BouncyCastle.Crypto.Digests; +using Org.BouncyCastle.Crypto; +using Org.BouncyCastle.Crypto.Engines; +using Org.BouncyCastle.Crypto.Signers; +using Org.BouncyCastle.Utilities; + +namespace Org.BouncyCastle.Security +{ + /// <summary> + /// Signer Utility class contains methods that can not be specifically grouped into other classes. + /// </summary> + public sealed class SignerUtilities + { + private SignerUtilities() + { + } + + internal static readonly IDictionary algorithms = Platform.CreateHashtable(); + internal static readonly IDictionary oids = Platform.CreateHashtable(); + + static SignerUtilities() + { + algorithms["MD2WITHRSA"] = "MD2withRSA"; + algorithms["MD2WITHRSAENCRYPTION"] = "MD2withRSA"; + algorithms[PkcsObjectIdentifiers.MD2WithRsaEncryption.Id] = "MD2withRSA"; + + algorithms["MD4WITHRSA"] = "MD4withRSA"; + algorithms["MD4WITHRSAENCRYPTION"] = "MD4withRSA"; + algorithms[PkcsObjectIdentifiers.MD4WithRsaEncryption.Id] = "MD4withRSA"; + + algorithms["MD5WITHRSA"] = "MD5withRSA"; + algorithms["MD5WITHRSAENCRYPTION"] = "MD5withRSA"; + algorithms[PkcsObjectIdentifiers.MD5WithRsaEncryption.Id] = "MD5withRSA"; + + algorithms["SHA1WITHRSA"] = "SHA-1withRSA"; + algorithms["SHA1WITHRSAENCRYPTION"] = "SHA-1withRSA"; + algorithms[PkcsObjectIdentifiers.Sha1WithRsaEncryption.Id] = "SHA-1withRSA"; + algorithms["SHA-1WITHRSA"] = "SHA-1withRSA"; + + algorithms["SHA224WITHRSA"] = "SHA-224withRSA"; + algorithms["SHA224WITHRSAENCRYPTION"] = "SHA-224withRSA"; + algorithms[PkcsObjectIdentifiers.Sha224WithRsaEncryption.Id] = "SHA-224withRSA"; + algorithms["SHA-224WITHRSA"] = "SHA-224withRSA"; + + algorithms["SHA256WITHRSA"] = "SHA-256withRSA"; + algorithms["SHA256WITHRSAENCRYPTION"] = "SHA-256withRSA"; + algorithms[PkcsObjectIdentifiers.Sha256WithRsaEncryption.Id] = "SHA-256withRSA"; + algorithms["SHA-256WITHRSA"] = "SHA-256withRSA"; + + algorithms["SHA384WITHRSA"] = "SHA-384withRSA"; + algorithms["SHA384WITHRSAENCRYPTION"] = "SHA-384withRSA"; + algorithms[PkcsObjectIdentifiers.Sha384WithRsaEncryption.Id] = "SHA-384withRSA"; + algorithms["SHA-384WITHRSA"] = "SHA-384withRSA"; + + algorithms["SHA512WITHRSA"] = "SHA-512withRSA"; + algorithms["SHA512WITHRSAENCRYPTION"] = "SHA-512withRSA"; + algorithms[PkcsObjectIdentifiers.Sha512WithRsaEncryption.Id] = "SHA-512withRSA"; + algorithms["SHA-512WITHRSA"] = "SHA-512withRSA"; + + algorithms["PSSWITHRSA"] = "PSSwithRSA"; + algorithms["RSASSA-PSS"] = "PSSwithRSA"; + algorithms[PkcsObjectIdentifiers.IdRsassaPss.Id] = "PSSwithRSA"; + algorithms["RSAPSS"] = "PSSwithRSA"; + + algorithms["SHA1WITHRSAANDMGF1"] = "SHA-1withRSAandMGF1"; + algorithms["SHA-1WITHRSAANDMGF1"] = "SHA-1withRSAandMGF1"; + algorithms["SHA1WITHRSA/PSS"] = "SHA-1withRSAandMGF1"; + algorithms["SHA-1WITHRSA/PSS"] = "SHA-1withRSAandMGF1"; + + algorithms["SHA224WITHRSAANDMGF1"] = "SHA-224withRSAandMGF1"; + algorithms["SHA-224WITHRSAANDMGF1"] = "SHA-224withRSAandMGF1"; + algorithms["SHA224WITHRSA/PSS"] = "SHA-224withRSAandMGF1"; + algorithms["SHA-224WITHRSA/PSS"] = "SHA-224withRSAandMGF1"; + + algorithms["SHA256WITHRSAANDMGF1"] = "SHA-256withRSAandMGF1"; + algorithms["SHA-256WITHRSAANDMGF1"] = "SHA-256withRSAandMGF1"; + algorithms["SHA256WITHRSA/PSS"] = "SHA-256withRSAandMGF1"; + algorithms["SHA-256WITHRSA/PSS"] = "SHA-256withRSAandMGF1"; + + algorithms["SHA384WITHRSAANDMGF1"] = "SHA-384withRSAandMGF1"; + algorithms["SHA-384WITHRSAANDMGF1"] = "SHA-384withRSAandMGF1"; + algorithms["SHA384WITHRSA/PSS"] = "SHA-384withRSAandMGF1"; + algorithms["SHA-384WITHRSA/PSS"] = "SHA-384withRSAandMGF1"; + + algorithms["SHA512WITHRSAANDMGF1"] = "SHA-512withRSAandMGF1"; + algorithms["SHA-512WITHRSAANDMGF1"] = "SHA-512withRSAandMGF1"; + algorithms["SHA512WITHRSA/PSS"] = "SHA-512withRSAandMGF1"; + algorithms["SHA-512WITHRSA/PSS"] = "SHA-512withRSAandMGF1"; + + algorithms["RIPEMD128WITHRSA"] = "RIPEMD128withRSA"; + algorithms["RIPEMD128WITHRSAENCRYPTION"] = "RIPEMD128withRSA"; + algorithms[TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128.Id] = "RIPEMD128withRSA"; + + algorithms["RIPEMD160WITHRSA"] = "RIPEMD160withRSA"; + algorithms["RIPEMD160WITHRSAENCRYPTION"] = "RIPEMD160withRSA"; + algorithms[TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160.Id] = "RIPEMD160withRSA"; + + algorithms["RIPEMD256WITHRSA"] = "RIPEMD256withRSA"; + algorithms["RIPEMD256WITHRSAENCRYPTION"] = "RIPEMD256withRSA"; + algorithms[TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256.Id] = "RIPEMD256withRSA"; + + algorithms["NONEWITHRSA"] = "RSA"; + algorithms["RSAWITHNONE"] = "RSA"; + algorithms["RAWRSA"] = "RSA"; + + algorithms["RAWRSAPSS"] = "RAWRSASSA-PSS"; + algorithms["NONEWITHRSAPSS"] = "RAWRSASSA-PSS"; + algorithms["NONEWITHRSASSA-PSS"] = "RAWRSASSA-PSS"; + + algorithms["NONEWITHDSA"] = "NONEwithDSA"; + algorithms["DSAWITHNONE"] = "NONEwithDSA"; + algorithms["RAWDSA"] = "NONEwithDSA"; + + algorithms["DSA"] = "SHA-1withDSA"; + algorithms["DSAWITHSHA1"] = "SHA-1withDSA"; + algorithms["DSAWITHSHA-1"] = "SHA-1withDSA"; + algorithms["SHA/DSA"] = "SHA-1withDSA"; + algorithms["SHA1/DSA"] = "SHA-1withDSA"; + algorithms["SHA-1/DSA"] = "SHA-1withDSA"; + algorithms["SHA1WITHDSA"] = "SHA-1withDSA"; + algorithms["SHA-1WITHDSA"] = "SHA-1withDSA"; + algorithms[X9ObjectIdentifiers.IdDsaWithSha1.Id] = "SHA-1withDSA"; + + algorithms["DSAWITHSHA224"] = "SHA-224withDSA"; + algorithms["DSAWITHSHA-224"] = "SHA-224withDSA"; + algorithms["SHA224/DSA"] = "SHA-224withDSA"; + algorithms["SHA-224/DSA"] = "SHA-224withDSA"; + algorithms["SHA224WITHDSA"] = "SHA-224withDSA"; + algorithms["SHA-224WITHDSA"] = "SHA-224withDSA"; + algorithms[NistObjectIdentifiers.DsaWithSha224.Id] = "SHA-224withDSA"; + + algorithms["DSAWITHSHA256"] = "SHA-256withDSA"; + algorithms["DSAWITHSHA-256"] = "SHA-256withDSA"; + algorithms["SHA256/DSA"] = "SHA-256withDSA"; + algorithms["SHA-256/DSA"] = "SHA-256withDSA"; + algorithms["SHA256WITHDSA"] = "SHA-256withDSA"; + algorithms["SHA-256WITHDSA"] = "SHA-256withDSA"; + algorithms[NistObjectIdentifiers.DsaWithSha256.Id] = "SHA-256withDSA"; + + algorithms["DSAWITHSHA384"] = "SHA-384withDSA"; + algorithms["DSAWITHSHA-384"] = "SHA-384withDSA"; + algorithms["SHA384/DSA"] = "SHA-384withDSA"; + algorithms["SHA-384/DSA"] = "SHA-384withDSA"; + algorithms["SHA384WITHDSA"] = "SHA-384withDSA"; + algorithms["SHA-384WITHDSA"] = "SHA-384withDSA"; + algorithms[NistObjectIdentifiers.DsaWithSha384.Id] = "SHA-384withDSA"; + + algorithms["DSAWITHSHA512"] = "SHA-512withDSA"; + algorithms["DSAWITHSHA-512"] = "SHA-512withDSA"; + algorithms["SHA512/DSA"] = "SHA-512withDSA"; + algorithms["SHA-512/DSA"] = "SHA-512withDSA"; + algorithms["SHA512WITHDSA"] = "SHA-512withDSA"; + algorithms["SHA-512WITHDSA"] = "SHA-512withDSA"; + algorithms[NistObjectIdentifiers.DsaWithSha512.Id] = "SHA-512withDSA"; + + algorithms["NONEWITHECDSA"] = "NONEwithECDSA"; + algorithms["ECDSAWITHNONE"] = "NONEwithECDSA"; + + algorithms["ECDSA"] = "SHA-1withECDSA"; + algorithms["SHA1/ECDSA"] = "SHA-1withECDSA"; + algorithms["SHA-1/ECDSA"] = "SHA-1withECDSA"; + algorithms["ECDSAWITHSHA1"] = "SHA-1withECDSA"; + algorithms["ECDSAWITHSHA-1"] = "SHA-1withECDSA"; + algorithms["SHA1WITHECDSA"] = "SHA-1withECDSA"; + algorithms["SHA-1WITHECDSA"] = "SHA-1withECDSA"; + algorithms[X9ObjectIdentifiers.ECDsaWithSha1.Id] = "SHA-1withECDSA"; + algorithms[TeleTrusTObjectIdentifiers.ECSignWithSha1.Id] = "SHA-1withECDSA"; + + algorithms["SHA224/ECDSA"] = "SHA-224withECDSA"; + algorithms["SHA-224/ECDSA"] = "SHA-224withECDSA"; + algorithms["ECDSAWITHSHA224"] = "SHA-224withECDSA"; + algorithms["ECDSAWITHSHA-224"] = "SHA-224withECDSA"; + algorithms["SHA224WITHECDSA"] = "SHA-224withECDSA"; + algorithms["SHA-224WITHECDSA"] = "SHA-224withECDSA"; + algorithms[X9ObjectIdentifiers.ECDsaWithSha224.Id] = "SHA-224withECDSA"; + + algorithms["SHA256/ECDSA"] = "SHA-256withECDSA"; + algorithms["SHA-256/ECDSA"] = "SHA-256withECDSA"; + algorithms["ECDSAWITHSHA256"] = "SHA-256withECDSA"; + algorithms["ECDSAWITHSHA-256"] = "SHA-256withECDSA"; + algorithms["SHA256WITHECDSA"] = "SHA-256withECDSA"; + algorithms["SHA-256WITHECDSA"] = "SHA-256withECDSA"; + algorithms[X9ObjectIdentifiers.ECDsaWithSha256.Id] = "SHA-256withECDSA"; + + algorithms["SHA384/ECDSA"] = "SHA-384withECDSA"; + algorithms["SHA-384/ECDSA"] = "SHA-384withECDSA"; + algorithms["ECDSAWITHSHA384"] = "SHA-384withECDSA"; + algorithms["ECDSAWITHSHA-384"] = "SHA-384withECDSA"; + algorithms["SHA384WITHECDSA"] = "SHA-384withECDSA"; + algorithms["SHA-384WITHECDSA"] = "SHA-384withECDSA"; + algorithms[X9ObjectIdentifiers.ECDsaWithSha384.Id] = "SHA-384withECDSA"; + + algorithms["SHA512/ECDSA"] = "SHA-512withECDSA"; + algorithms["SHA-512/ECDSA"] = "SHA-512withECDSA"; + algorithms["ECDSAWITHSHA512"] = "SHA-512withECDSA"; + algorithms["ECDSAWITHSHA-512"] = "SHA-512withECDSA"; + algorithms["SHA512WITHECDSA"] = "SHA-512withECDSA"; + algorithms["SHA-512WITHECDSA"] = "SHA-512withECDSA"; + algorithms[X9ObjectIdentifiers.ECDsaWithSha512.Id] = "SHA-512withECDSA"; + + algorithms["RIPEMD160/ECDSA"] = "RIPEMD160withECDSA"; + algorithms["SHA-512/ECDSA"] = "RIPEMD160withECDSA"; + algorithms["ECDSAWITHRIPEMD160"] = "RIPEMD160withECDSA"; + algorithms["ECDSAWITHRIPEMD160"] = "RIPEMD160withECDSA"; + algorithms["RIPEMD160WITHECDSA"] = "RIPEMD160withECDSA"; + algorithms["RIPEMD160WITHECDSA"] = "RIPEMD160withECDSA"; + algorithms[TeleTrusTObjectIdentifiers.ECSignWithRipeMD160.Id] = "RIPEMD160withECDSA"; + + algorithms["GOST-3410"] = "GOST3410"; + algorithms["GOST-3410-94"] = "GOST3410"; + algorithms["GOST3411WITHGOST3410"] = "GOST3410"; + algorithms[CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94.Id] = "GOST3410"; + + algorithms["ECGOST-3410"] = "ECGOST3410"; + algorithms["ECGOST-3410-2001"] = "ECGOST3410"; + algorithms["GOST3411WITHECGOST3410"] = "ECGOST3410"; + algorithms[CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001.Id] = "ECGOST3410"; + + + + oids["MD2withRSA"] = PkcsObjectIdentifiers.MD2WithRsaEncryption; + oids["MD4withRSA"] = PkcsObjectIdentifiers.MD4WithRsaEncryption; + oids["MD5withRSA"] = PkcsObjectIdentifiers.MD5WithRsaEncryption; + + oids["SHA-1withRSA"] = PkcsObjectIdentifiers.Sha1WithRsaEncryption; + oids["SHA-224withRSA"] = PkcsObjectIdentifiers.Sha224WithRsaEncryption; + oids["SHA-256withRSA"] = PkcsObjectIdentifiers.Sha256WithRsaEncryption; + oids["SHA-384withRSA"] = PkcsObjectIdentifiers.Sha384WithRsaEncryption; + oids["SHA-512withRSA"] = PkcsObjectIdentifiers.Sha512WithRsaEncryption; + + oids["PSSwithRSA"] = PkcsObjectIdentifiers.IdRsassaPss; + oids["SHA-1withRSAandMGF1"] = PkcsObjectIdentifiers.IdRsassaPss; + oids["SHA-224withRSAandMGF1"] = PkcsObjectIdentifiers.IdRsassaPss; + oids["SHA-256withRSAandMGF1"] = PkcsObjectIdentifiers.IdRsassaPss; + oids["SHA-384withRSAandMGF1"] = PkcsObjectIdentifiers.IdRsassaPss; + oids["SHA-512withRSAandMGF1"] = PkcsObjectIdentifiers.IdRsassaPss; + + oids["RIPEMD128withRSA"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD128; + oids["RIPEMD160withRSA"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD160; + oids["RIPEMD256withRSA"] = TeleTrusTObjectIdentifiers.RsaSignatureWithRipeMD256; + + oids["SHA-1withDSA"] = X9ObjectIdentifiers.IdDsaWithSha1; + + oids["SHA-1withECDSA"] = X9ObjectIdentifiers.ECDsaWithSha1; + oids["SHA-224withECDSA"] = X9ObjectIdentifiers.ECDsaWithSha224; + oids["SHA-256withECDSA"] = X9ObjectIdentifiers.ECDsaWithSha256; + oids["SHA-384withECDSA"] = X9ObjectIdentifiers.ECDsaWithSha384; + oids["SHA-512withECDSA"] = X9ObjectIdentifiers.ECDsaWithSha512; + + oids["GOST3410"] = CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x94; + oids["ECGOST3410"] = CryptoProObjectIdentifiers.GostR3411x94WithGostR3410x2001; + } + + /// <summary> + /// Returns a ObjectIdentifier for a give encoding. + /// </summary> + /// <param name="mechanism">A string representation of the encoding.</param> + /// <returns>A DerObjectIdentifier, null if the Oid is not available.</returns> + // TODO Don't really want to support this + public static DerObjectIdentifier GetObjectIdentifier( + string mechanism) + { + if (mechanism == null) + throw new ArgumentNullException("mechanism"); + + mechanism = Platform.ToUpperInvariant(mechanism); + string aliased = (string) algorithms[mechanism]; + + if (aliased != null) + mechanism = aliased; + + return (DerObjectIdentifier) oids[mechanism]; + } + + public static ICollection Algorithms + { + get { return oids.Keys; } + } + + public static Asn1Encodable GetDefaultX509Parameters( + DerObjectIdentifier id) + { + return GetDefaultX509Parameters(id.Id); + } + + public static Asn1Encodable GetDefaultX509Parameters( + string algorithm) + { + if (algorithm == null) + throw new ArgumentNullException("algorithm"); + + algorithm = Platform.ToUpperInvariant(algorithm); + + string mechanism = (string) algorithms[algorithm]; + + if (mechanism == null) + mechanism = algorithm; + + if (mechanism == "PSSwithRSA") + { + // TODO The Sha1Digest here is a default. In JCE version, the actual digest + // to be used can be overridden by subsequent parameter settings. + return GetPssX509Parameters("SHA-1"); + } + + if (mechanism.EndsWith("withRSAandMGF1")) + { + string digestName = mechanism.Substring(0, mechanism.Length - "withRSAandMGF1".Length); + return GetPssX509Parameters(digestName); + } + + return DerNull.Instance; + } + + private static Asn1Encodable GetPssX509Parameters( + string digestName) + { + AlgorithmIdentifier hashAlgorithm = new AlgorithmIdentifier( + DigestUtilities.GetObjectIdentifier(digestName), DerNull.Instance); + + // TODO Is it possible for the MGF hash alg to be different from the PSS one? + AlgorithmIdentifier maskGenAlgorithm = new AlgorithmIdentifier( + PkcsObjectIdentifiers.IdMgf1, hashAlgorithm); + + int saltLen = DigestUtilities.GetDigest(digestName).GetDigestSize(); + return new RsassaPssParameters(hashAlgorithm, maskGenAlgorithm, + new DerInteger(saltLen), new DerInteger(1)); + } + + public static ISigner GetSigner( + DerObjectIdentifier id) + { + return GetSigner(id.Id); + } + + public static ISigner GetSigner( + string algorithm) + { + if (algorithm == null) + throw new ArgumentNullException("algorithm"); + + algorithm = Platform.ToUpperInvariant(algorithm); + + string mechanism = (string) algorithms[algorithm]; + + if (mechanism == null) + mechanism = algorithm; + + if (mechanism.Equals("RSA")) + { + return (new RsaDigestSigner(new NullDigest())); + } + if (mechanism.Equals("MD2withRSA")) + { + return (new RsaDigestSigner(new MD2Digest())); + } + if (mechanism.Equals("MD4withRSA")) + { + return (new RsaDigestSigner(new MD4Digest())); + } + if (mechanism.Equals("MD5withRSA")) + { + return (new RsaDigestSigner(new MD5Digest())); + } + if (mechanism.Equals("SHA-1withRSA")) + { + return (new RsaDigestSigner(new Sha1Digest())); + } + if (mechanism.Equals("SHA-224withRSA")) + { + return (new RsaDigestSigner(new Sha224Digest())); + } + if (mechanism.Equals("SHA-256withRSA")) + { + return (new RsaDigestSigner(new Sha256Digest())); + } + if (mechanism.Equals("SHA-384withRSA")) + { + return (new RsaDigestSigner(new Sha384Digest())); + } + if (mechanism.Equals("SHA-512withRSA")) + { + return (new RsaDigestSigner(new Sha512Digest())); + } + if (mechanism.Equals("RIPEMD128withRSA")) + { + return (new RsaDigestSigner(new RipeMD128Digest())); + } + if (mechanism.Equals("RIPEMD160withRSA")) + { + return (new RsaDigestSigner(new RipeMD160Digest())); + } + if (mechanism.Equals("RIPEMD256withRSA")) + { + return (new RsaDigestSigner(new RipeMD256Digest())); + } + + if (mechanism.Equals("RAWRSASSA-PSS")) + { + // TODO Add support for other parameter settings + return PssSigner.CreateRawSigner(new RsaBlindedEngine(), new Sha1Digest()); + } + if (mechanism.Equals("PSSwithRSA")) + { + // TODO The Sha1Digest here is a default. In JCE version, the actual digest + // to be used can be overridden by subsequent parameter settings. + return (new PssSigner(new RsaBlindedEngine(), new Sha1Digest())); + } + if (mechanism.Equals("SHA-1withRSAandMGF1")) + { + return (new PssSigner(new RsaBlindedEngine(), new Sha1Digest())); + } + if (mechanism.Equals("SHA-224withRSAandMGF1")) + { + return (new PssSigner(new RsaBlindedEngine(), new Sha224Digest())); + } + if (mechanism.Equals("SHA-256withRSAandMGF1")) + { + return (new PssSigner(new RsaBlindedEngine(), new Sha256Digest())); + } + if (mechanism.Equals("SHA-384withRSAandMGF1")) + { + return (new PssSigner(new RsaBlindedEngine(), new Sha384Digest())); + } + if (mechanism.Equals("SHA-512withRSAandMGF1")) + { + return (new PssSigner(new RsaBlindedEngine(), new Sha512Digest())); + } + + if (mechanism.Equals("NONEwithDSA")) + { + return (new DsaDigestSigner(new DsaSigner(), new NullDigest())); + } + if (mechanism.Equals("SHA-1withDSA")) + { + return (new DsaDigestSigner(new DsaSigner(), new Sha1Digest())); + } + if (mechanism.Equals("SHA-224withDSA")) + { + return (new DsaDigestSigner(new DsaSigner(), new Sha224Digest())); + } + if (mechanism.Equals("SHA-256withDSA")) + { + return (new DsaDigestSigner(new DsaSigner(), new Sha256Digest())); + } + if (mechanism.Equals("SHA-384withDSA")) + { + return (new DsaDigestSigner(new DsaSigner(), new Sha384Digest())); + } + if (mechanism.Equals("SHA-512withDSA")) + { + return (new DsaDigestSigner(new DsaSigner(), new Sha512Digest())); + } + + if (mechanism.Equals("NONEwithECDSA")) + { + return (new DsaDigestSigner(new ECDsaSigner(), new NullDigest())); + } + if (mechanism.Equals("SHA-1withECDSA")) + { + return (new DsaDigestSigner(new ECDsaSigner(), new Sha1Digest())); + } + if (mechanism.Equals("SHA-224withECDSA")) + { + return (new DsaDigestSigner(new ECDsaSigner(), new Sha224Digest())); + } + if (mechanism.Equals("SHA-256withECDSA")) + { + return (new DsaDigestSigner(new ECDsaSigner(), new Sha256Digest())); + } + if (mechanism.Equals("SHA-384withECDSA")) + { + return (new DsaDigestSigner(new ECDsaSigner(), new Sha384Digest())); + } + if (mechanism.Equals("SHA-512withECDSA")) + { + return (new DsaDigestSigner(new ECDsaSigner(), new Sha512Digest())); + } + + if (mechanism.Equals("RIPEMD160withECDSA")) + { + return (new DsaDigestSigner(new ECDsaSigner(), new RipeMD160Digest())); + } + + if (mechanism.Equals("SHA1WITHECNR")) + { + return (new DsaDigestSigner(new ECNRSigner(), new Sha1Digest())); + } + if (mechanism.Equals("SHA224WITHECNR")) + { + return (new DsaDigestSigner(new ECNRSigner(), new Sha224Digest())); + } + if (mechanism.Equals("SHA256WITHECNR")) + { + return (new DsaDigestSigner(new ECNRSigner(), new Sha256Digest())); + } + if (mechanism.Equals("SHA384WITHECNR")) + { + return (new DsaDigestSigner(new ECNRSigner(), new Sha384Digest())); + } + if (mechanism.Equals("SHA512WITHECNR")) + { + return (new DsaDigestSigner(new ECNRSigner(), new Sha512Digest())); + } + + if (mechanism.Equals("GOST3410")) + { + return new Gost3410DigestSigner(new Gost3410Signer(), new Gost3411Digest()); + } + if (mechanism.Equals("ECGOST3410")) + { + return new Gost3410DigestSigner(new ECGost3410Signer(), new Gost3411Digest()); + } + + if (mechanism.Equals("SHA1WITHRSA/ISO9796-2")) + { + return new Iso9796d2Signer(new RsaBlindedEngine(), new Sha1Digest(), true); + } + if (mechanism.Equals("MD5WITHRSA/ISO9796-2")) + { + return new Iso9796d2Signer(new RsaBlindedEngine(), new MD5Digest(), true); + } + if (mechanism.Equals("RIPEMD160WITHRSA/ISO9796-2")) + { + return new Iso9796d2Signer(new RsaBlindedEngine(), new RipeMD160Digest(), true); + } + + throw new SecurityUtilityException("Signer " + algorithm + " not recognised."); + } + + public static string GetEncodingName( + DerObjectIdentifier oid) + { + return (string) algorithms[oid.Id]; + } + } +} |