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Add migrated to .NET 8.0 variant of Hcs.Client

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2025-09-26 19:48:32 +09:00
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Hcs.ClientNet/GostCryptography/Pkcs/GostSignedCms.cs Normal file
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using GostCryptography.Config;
using System.Security;
using System.Security.Cryptography.Pkcs;
using System.Security.Cryptography.X509Certificates;
namespace GostCryptography.Pkcs
{
/// <summary>
/// Реализует методы для работы с сообщениями CMS (Cryptographic Message Syntax) / PKCS #7 (Public-Key Cryptography Standard #7)
/// </summary>
/// <remarks>
/// CMS (Cryptographic Message Syntax) или PKCS #7 (Public-Key Cryptography Standard #7) - это стандарт, поддерживаемый RSA Laboratories,
/// который описываемый синтаксис криптографических сообщений. Синтаксис CMS описывает способы формирования криптографических сообщений,
/// в результате чего сообщение становится полностью самодостаточным для его открытия и выполнения всех необходимых операций. С этой целью
/// в CMS-сообщении размещается информация об исходном сообщении, алгоритмах хэширования и подписи, параметрах криптоалгоритмов, времени
/// подписи, сертификат ключа электронной подписи, цепочка сертификации и т.д. Большинство из перечисленных атрибутов CMS-сообщения являются
/// опциональными, но их обязательность может определяться прикладной системой. Отдельно следует отметить, что CMS/PKCS#7 позволяет ставить
/// несколько подписей под одним документом, сохраняя всю необходимую информацию в сообщении.
/// </remarks>
public sealed class GostSignedCms
{
static GostSignedCms()
{
GostCryptoConfig.Initialize();
}
/// <inheritdoc cref="SignedCms()"/>
public GostSignedCms()
{
_signedCms = new SignedCms();
_signerIdentifierType = InitSubjectIdentifierType(SubjectIdentifierType.IssuerAndSerialNumber);
}
/// <inheritdoc cref="SignedCms(SubjectIdentifierType)"/>
public GostSignedCms(SubjectIdentifierType signerIdentifierType)
{
_signedCms = new SignedCms(signerIdentifierType);
_signerIdentifierType = InitSubjectIdentifierType(signerIdentifierType);
}
/// <inheritdoc cref="SignedCms(System.Security.Cryptography.Pkcs.ContentInfo)"/>
public GostSignedCms(ContentInfo contentInfo)
{
_signedCms = new SignedCms(contentInfo);
_signerIdentifierType = InitSubjectIdentifierType(SubjectIdentifierType.IssuerAndSerialNumber);
}
/// <inheritdoc cref="SignedCms(SubjectIdentifierType,System.Security.Cryptography.Pkcs.ContentInfo)"/>
public GostSignedCms(SubjectIdentifierType signerIdentifierType, ContentInfo contentInfo)
{
_signedCms = new SignedCms(signerIdentifierType, contentInfo);
_signerIdentifierType = InitSubjectIdentifierType(signerIdentifierType);
}
/// <inheritdoc cref="SignedCms(System.Security.Cryptography.Pkcs.ContentInfo,bool)"/>
public GostSignedCms(ContentInfo contentInfo, bool detached)
{
_signedCms = new SignedCms(contentInfo, detached);
_signerIdentifierType = InitSubjectIdentifierType(SubjectIdentifierType.IssuerAndSerialNumber);
}
/// <inheritdoc cref="SignedCms(SubjectIdentifierType,System.Security.Cryptography.Pkcs.ContentInfo,bool)"/>
public GostSignedCms(SubjectIdentifierType signerIdentifierType, ContentInfo contentInfo, bool detached)
{
_signedCms = new SignedCms(signerIdentifierType, contentInfo, detached);
_signerIdentifierType = InitSubjectIdentifierType(signerIdentifierType);
}
private readonly SignedCms _signedCms;
private readonly SubjectIdentifierType _signerIdentifierType;
/// <inheritdoc cref="SignedCms.Version"/>
public int Version => _signedCms.Version;
/// <inheritdoc cref="SignedCms.ContentInfo"/>
public ContentInfo ContentInfo => _signedCms.ContentInfo;
/// <inheritdoc cref="SignedCms.Detached"/>
public bool Detached => _signedCms.Detached;
/// <inheritdoc cref="SignedCms.Certificates"/>
public X509Certificate2Collection Certificates => _signedCms.Certificates;
/// <inheritdoc cref="SignedCms.SignerInfos"/>
public SignerInfoCollection SignerInfos => _signedCms.SignerInfos;
/// <inheritdoc cref="SignedCms.Encode"/>
public byte[] Encode()
{
return _signedCms.Encode();
}
/// <inheritdoc cref="SignedCms.Decode"/>
public void Decode(byte[] encodedMessage)
{
_signedCms.Decode(encodedMessage);
}
/// <inheritdoc cref="SignedCms.ComputeSignature()"/>
public void ComputeSignature()
{
ComputeSignature(new CmsSigner(_signerIdentifierType), true);
}
/// <inheritdoc cref="SignedCms.ComputeSignature(CmsSigner)"/>
public void ComputeSignature(CmsSigner signer)
{
ComputeSignature(signer, true);
}
/// <inheritdoc cref="SignedCms.ComputeSignature(CmsSigner,bool)"/>
public void ComputeSignature(CmsSigner signer, bool silent)
{
signer = InitCmsSigner(signer);
_signedCms.ComputeSignature(signer, silent);
}
/// <inheritdoc cref="SignedCms.RemoveSignature(int)"/>
public void RemoveSignature(int index)
{
_signedCms.RemoveSignature(index);
}
/// <inheritdoc cref="SignedCms.RemoveSignature(SignerInfo)"/>
public void RemoveSignature(SignerInfo signerInfo)
{
_signedCms.RemoveSignature(signerInfo);
}
/// <inheritdoc cref="SignedCms.CheckSignature(bool)"/>
public void CheckSignature(bool verifySignatureOnly)
{
_signedCms.CheckSignature(verifySignatureOnly);
}
/// <inheritdoc cref="SignedCms.CheckSignature(X509Certificate2Collection,bool)"/>
public void CheckSignature(X509Certificate2Collection extraStore, bool verifySignatureOnly)
{
_signedCms.CheckSignature(extraStore, verifySignatureOnly);
}
/// <inheritdoc cref="SignedCms.CheckHash()"/>
public void CheckHash()
{
_signedCms.CheckHash();
}
private static SubjectIdentifierType InitSubjectIdentifierType(SubjectIdentifierType signerIdentifierType)
{
if (signerIdentifierType != SubjectIdentifierType.SubjectKeyIdentifier
&& signerIdentifierType != SubjectIdentifierType.IssuerAndSerialNumber
&& signerIdentifierType != SubjectIdentifierType.NoSignature)
{
return SubjectIdentifierType.IssuerAndSerialNumber;
}
return signerIdentifierType;
}
[SecuritySafeCritical]
private static CmsSigner InitCmsSigner(CmsSigner cmsSigner)
{
var certificate = cmsSigner.Certificate;
var hashAlgorithm = certificate?.GetHashAlgorithm();
if (hashAlgorithm != null)
{
cmsSigner.DigestAlgorithm = hashAlgorithm;
}
return cmsSigner;
}
}
}