77 lines
2.6 KiB
C#
77 lines
2.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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namespace StellaOps.Cryptography.DependencyInjection;
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/// <summary>
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/// Options controlling crypto provider registry ordering and selection.
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/// </summary>
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public sealed class CryptoProviderRegistryOptions
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{
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private readonly Dictionary<string, CryptoProviderProfileOptions> profiles =
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new(StringComparer.OrdinalIgnoreCase);
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/// <summary>
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/// Registry configuration factory that aligns with the 2025-11-18 sovereign crypto decision.
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/// </summary>
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public static CryptoProviderRegistryOptions SovereignDefault()
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{
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var options = new CryptoProviderRegistryOptions
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{
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ActiveProfile = "ru-offline"
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};
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options.PreferredProviders.Add("default");
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options.PreferredProviders.Add("ru.openssl.gost");
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options.PreferredProviders.Add("ru.pkcs11");
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var ruOffline = new CryptoProviderProfileOptions();
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ruOffline.PreferredProviders.Add("ru.cryptopro.csp");
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ruOffline.PreferredProviders.Add("ru.openssl.gost");
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ruOffline.PreferredProviders.Add("ru.pkcs11");
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options.Profiles["ru-offline"] = ruOffline;
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return options;
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}
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/// <summary>
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/// Ordered list of preferred provider names. Providers appearing here are consulted first.
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/// </summary>
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public IList<string> PreferredProviders { get; } = new List<string>();
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/// <summary>
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/// Active profile name (e.g. "ru-offline") that overrides <see cref="PreferredProviders"/>.
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/// </summary>
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public string ActiveProfile { get; set; } = "default";
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/// <summary>
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/// Regional or environment-specific provider preference profiles.
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/// </summary>
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public IDictionary<string, CryptoProviderProfileOptions> Profiles => profiles;
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public IReadOnlyList<string> ResolvePreferredProviders()
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{
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static IReadOnlyList<string> Normalise(IEnumerable<string> items)
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=> new ReadOnlyCollection<string>(
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items.Where(static value => !string.IsNullOrWhiteSpace(value))
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.Select(static value => value.Trim())
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.ToArray());
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if (!string.IsNullOrWhiteSpace(ActiveProfile) &&
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profiles.TryGetValue(ActiveProfile, out var profile) &&
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profile.PreferredProviders.Count > 0)
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{
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return Normalise(profile.PreferredProviders);
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}
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if (PreferredProviders.Count > 0)
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{
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return Normalise(PreferredProviders);
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}
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return Array.Empty<string>();
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}
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}
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