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Basic formatting applied. Unnecessary comments have been removed. Suspicious code is covered by TODO.
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2025-08-12 11:21:10 +09:00
parent bbcbe841a7
commit 33ab055b43
546 changed files with 176950 additions and 0 deletions

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using GostCryptography.Asn1.Ber;
namespace GostCryptography.Asn1.Gost.PublicKey
{
public sealed class AlgorithmId
{
public AlgorithmId(Asn1ObjectIdentifier id, Asn1Type type)
{
Id = id;
Type = type;
}
public Asn1ObjectIdentifier Id { get; }
public Asn1Type Type { get; }
}
}

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using GostCryptography.Asn1.Ber;
using GostCryptography.Properties;
using System;
namespace GostCryptography.Asn1.Gost.PublicKey
{
public sealed class AlgorithmIdentifier : Asn1Type
{
public AlgorithmIdentifier()
{
}
public AlgorithmIdentifier(Asn1ObjectIdentifier algorithm, Asn1OpenType parameters)
{
Algorithm = algorithm;
Parameters = parameters;
}
public Asn1ObjectIdentifier Algorithm { get; private set; }
public Asn1Type Parameters { get; private set; }
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Algorithm = null;
Parameters = null;
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
Algorithm = new Asn1ObjectIdentifier();
Algorithm.Decode(buffer, true, parsedLen.Value);
if (!context.Expired())
{
Parameters = new Asn1OpenType();
Parameters.Decode(buffer, true, 0);
}
CheckAlg(true);
}
public override int Encode(Asn1BerEncodeBuffer buffer, bool explicitTagging)
{
var len = 0;
CheckAlg(false);
if (Parameters != null)
{
len += Parameters.Encode(buffer, true);
}
len += Algorithm.Encode(buffer, true);
if (explicitTagging)
{
len += buffer.EncodeTagAndLength(Asn1Tag.Sequence, len);
}
return len;
}
private void CheckAlg(bool decode)
{
AlgorithmId algorithmId = null;
foreach (var alg in PkiConstants.SupportedAlgorithms)
{
if (alg.Id.Equals(Algorithm))
{
algorithmId = alg;
break;
}
}
if ((algorithmId != null) && ((decode && (Parameters != null)) && (algorithmId.Type != null)))
{
try
{
var buffer = new Asn1BerDecodeBuffer(((Asn1OpenType)Parameters).Value);
Parameters = (Asn1Type)Activator.CreateInstance(algorithmId.Type.GetType());
Parameters.Decode(buffer, true, 0);
buffer.InvokeEndElement("parameters", -1);
}
catch (Exception exception)
{
Asn1Util.WriteStackTrace(exception, Console.Error);
throw ExceptionUtility.CryptographicException(Resources.Asn1TableConstraint);
}
}
}
}
}

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using GostCryptography.Asn1.Ber;
using GostCryptography.Asn1.Gost.Gost_28147_89;
using GostCryptography.Asn1.Gost.Gost_R3410_2001;
using GostCryptography.Asn1.Gost.Gost_R3410_2012_256;
using GostCryptography.Asn1.Gost.Gost_R3410_2012_512;
using GostCryptography.Asn1.Gost.Gost_R3410_94;
namespace GostCryptography.Asn1.Gost.PublicKey
{
static class PkiConstants
{
// ГОСТ 28147-89
private static readonly AlgorithmId Gost_28147_89_EncryptAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_28147_89_Constants.EncryptAlgorithm),
new Gost_28147_89_Params());
// ГОСТ Р 34.10-94
private static readonly AlgorithmId Gost_R3410_94_KeyAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_94_Constants.KeyAlgorithm),
new Gost_R3410_94_PublicKeyType());
private static readonly AlgorithmId Gost_R3410_94_DhAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_94_Constants.DhAlgorithm),
new Gost_R3410_94_DhPublicKeyType());
private static readonly AlgorithmId Gost_R3410_94_SignatureAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_94_Constants.SignatureAlgorithm),
new NullParams());
private static readonly AlgorithmId Gost_R3411_94_HashAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_94_Constants.HashAlgorithm),
new Gost_R3411_94_DigestParamsType());
// ГОСТ Р 34.10-2001
private static readonly AlgorithmId Gost_R3410_2001_KeyAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2001_Constants.KeyAlgorithm),
new Gost_R3410_2001_PublicKeyType());
private static readonly AlgorithmId Gost_R3410_2001_DhAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2001_Constants.DhAlgorithm),
new Gost_R3410_2001_DhPublicKeyType());
private static readonly AlgorithmId Gost_R3410_2001_SignatureAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2001_Constants.SignatureAlgorithm),
new NullParams());
private static readonly AlgorithmId Gost_R3411_2001_HashAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2001_Constants.HashAlgorithm),
new Gost_R3411_2001_DigestParamsType());
// ГОСТ Р 34.10-2012/256
private static readonly AlgorithmId Gost_R3410_2012_256_KeyAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_256_Constants.KeyAlgorithm),
new Gost_R3410_2012_256_PublicKeyType());
private static readonly AlgorithmId Gost_R3410_2012_256_DhAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_256_Constants.DhAlgorithm),
new Gost_R3410_2012_256_DhPublicKeyType());
private static readonly AlgorithmId Gost_R3410_2012_256_SignatureAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_256_Constants.SignatureAlgorithm),
new NullParams());
private static readonly AlgorithmId Gost_R3411_2012_256_HashAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_256_Constants.HashAlgorithm),
new Gost_R3411_2012_256_DigestParamsType());
// ГОСТ Р 34.10-2012/512
private static readonly AlgorithmId Gost_R3410_2012_512_KeyAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_512_Constants.KeyAlgorithm),
new Gost_R3410_2012_512_PublicKeyType());
private static readonly AlgorithmId Gost_R3410_2012_512_DhAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_512_Constants.DhAlgorithm),
new Gost_R3410_2012_512_DhPublicKeyType());
private static readonly AlgorithmId Gost_R3410_2012_512_SignatureAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_512_Constants.SignatureAlgorithm),
new NullParams());
private static readonly AlgorithmId Gost_R3411_2012_512_HashAlgorithm = new AlgorithmId(
new Asn1ObjectIdentifier(Gost_R3410_2012_512_Constants.HashAlgorithm),
new Gost_R3411_2012_512_DigestParamsType());
public static readonly AlgorithmId[] SupportedAlgorithms =
{
Gost_28147_89_EncryptAlgorithm,
Gost_R3410_94_KeyAlgorithm,
Gost_R3410_94_DhAlgorithm,
Gost_R3410_94_SignatureAlgorithm,
Gost_R3411_94_HashAlgorithm,
Gost_R3410_2001_KeyAlgorithm,
Gost_R3410_2001_DhAlgorithm,
Gost_R3410_2001_SignatureAlgorithm,
Gost_R3411_2001_HashAlgorithm,
Gost_R3410_2012_256_KeyAlgorithm,
Gost_R3410_2012_256_DhAlgorithm,
Gost_R3410_2012_256_SignatureAlgorithm,
Gost_R3411_2012_256_HashAlgorithm,
Gost_R3410_2012_512_KeyAlgorithm,
Gost_R3410_2012_512_DhAlgorithm,
Gost_R3410_2012_512_SignatureAlgorithm,
Gost_R3411_2012_512_HashAlgorithm
};
}
}

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using GostCryptography.Asn1.Ber;
using GostCryptography.Properties;
namespace GostCryptography.Asn1.Gost.PublicKey
{
public sealed class SubjectPublicKeyInfo : Asn1Type
{
public AlgorithmIdentifier Algorithm { get; set; }
public Asn1BitString SubjectPublicKey { get; set; }
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Algorithm = null;
SubjectPublicKey = null;
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0x20, 0x10, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
Algorithm = new AlgorithmIdentifier();
Algorithm.Decode(buffer, true, parsedLen.Value);
if (!context.MatchElemTag(0, 0, 3, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
SubjectPublicKey = new Asn1BitString();
SubjectPublicKey.Decode(buffer, true, parsedLen.Value);
}
public override int Encode(Asn1BerEncodeBuffer buffer, bool explicitTagging)
{
var len = 0;
len += SubjectPublicKey.Encode(buffer, true);
len += Algorithm.Encode(buffer, true);
if (explicitTagging)
{
len += buffer.EncodeTagAndLength(Asn1Tag.Sequence, len);
}
return len;
}
}
}