128 lines
5.0 KiB
C#
128 lines
5.0 KiB
C#
using GostCryptography.Asn1.Gost.Gost_R3410_2001;
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using GostCryptography.Base;
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using GostCryptography.Config;
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using GostCryptography.Gost_R3411;
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using GostCryptography.Native;
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using GostCryptography.Properties;
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using System.Security;
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using System.Security.Cryptography;
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namespace GostCryptography.Gost_R3410
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{
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/// <summary>
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/// Реализация алгоритма ГОСТ Р 34.10-2001
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/// </summary>
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public sealed class Gost_R3410_2001_AsymmetricAlgorithm : Gost_R3410_AsymmetricAlgorithm<Gost_R3410_2001_KeyExchangeParams, Gost_R3410_2001_KeyExchangeAlgorithm>
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{
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/// <summary>
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/// Размер ключа ГОСТ Р 34.10-2001
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/// </summary>
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public const int DefaultKeySizeValue = 512;
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/// <summary>
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/// Наименование алгоритма цифровой подписи ГОСТ Р 34.10-2001
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/// </summary>
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public const string SignatureAlgorithmValue = "urn:ietf:params:xml:ns:cpxmlsec:algorithms:gostr34102001-gostr3411";
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/// <summary>
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/// Устаревшее наименование алгоритма цифровой подписи ГОСТ Р 34.10-2001
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/// </summary>
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public const string ObsoleteSignatureAlgorithmValue = "http://www.w3.org/2001/04/xmldsig-more#gostr34102001-gostr3411";
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/// <summary>
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/// Наименование алгоритма обмена ключами ГОСТ Р 34.10-2001
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/// </summary>
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public const string KeyExchangeAlgorithmValue = "urn:ietf:params:xml:ns:cpxmlsec:algorithms:transport-gost2001";
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/// <summary>
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/// Известные наименования алгоритма цифровой подписи ГОСТ Р 34.10-2001
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/// </summary>
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public static readonly string[] KnownSignatureAlgorithmNames = { SignatureAlgorithmValue, ObsoleteSignatureAlgorithmValue };
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/// <inheritdoc />
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[SecuritySafeCritical]
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public Gost_R3410_2001_AsymmetricAlgorithm() : this(GostCryptoConfig.ProviderType)
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{
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}
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/// <inheritdoc />
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[SecuritySafeCritical]
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public Gost_R3410_2001_AsymmetricAlgorithm(ProviderType providerType) : base(providerType, DefaultKeySizeValue)
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{
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}
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/// <inheritdoc />
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[SecuritySafeCritical]
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public Gost_R3410_2001_AsymmetricAlgorithm(CspParameters providerParameters) : base(providerParameters, DefaultKeySizeValue)
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{
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}
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/// <inheritdoc />
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public override string AlgorithmName => SignatureAlgorithmValue;
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/// <inheritdoc />
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public override string SignatureAlgorithm => SignatureAlgorithmValue;
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/// <inheritdoc />
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public override string KeyExchangeAlgorithm => KeyExchangeAlgorithmValue;
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/// <inheritdoc />
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protected override int ExchangeAlgId => Constants.CALG_DH_EL_SF;
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/// <inheritdoc />
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protected override int SignatureAlgId => Constants.CALG_GR3410EL;
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/// <inheritdoc />
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protected override Gost_R3410_2001_KeyExchangeParams CreateKeyExchangeParams()
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{
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return new Gost_R3410_2001_KeyExchangeParams();
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}
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/// <inheritdoc />
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[SecuritySafeCritical]
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protected override Gost_R3410_2001_KeyExchangeAlgorithm CreateKeyExchangeAlgorithm(ProviderType providerType, SafeProvHandleImpl provHandle, SafeKeyHandleImpl keyHandle, Gost_R3410_2001_KeyExchangeParams keyExchangeParameters)
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{
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return new Gost_R3410_2001_KeyExchangeAlgorithm(providerType, provHandle, keyHandle, keyExchangeParameters, KeySizeValue, SignatureAlgId);
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}
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/// <inheritdoc />
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[SecuritySafeCritical]
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public override GostHashAlgorithm CreateHashAlgorithm()
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{
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return new Gost_R3411_94_HashAlgorithm(ProviderType, this.GetSafeHandle<SafeProvHandleImpl>());
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}
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/// <inheritdoc />
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protected override void ValidateHashParameter(byte[] hash)
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{
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if (hash == null)
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{
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throw ExceptionUtility.ArgumentNull(nameof(hash));
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}
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if (hash.Length != Gost_R3411_94_HashAlgorithm.DefaultHashSizeValue / 8)
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{
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throw ExceptionUtility.ArgumentOutOfRange(nameof(hash), Resources.InvalidHashSize, Gost_R3411_94_HashAlgorithm.DefaultHashSizeValue / 8);
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}
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}
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/// <inheritdoc />
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public override GostKeyExchangeFormatter CreateKeyExchangeFormatter()
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{
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return new Gost_R3410_2001_KeyExchangeFormatter(this);
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}
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/// <inheritdoc />
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public override GostKeyExchangeDeformatter CreateKeyExchangeDeformatter()
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{
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return new Gost_R3410_2001_KeyExchangeDeformatter(this);
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}
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/// <inheritdoc />
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protected override Gost_R3410_KeyExchangeXmlSerializer<Gost_R3410_2001_KeyExchangeParams> CreateKeyExchangeXmlSerializer()
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{
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return new Gost_R3410_2001_KeyExchangeXmlSerializer();
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}
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}
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}
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