Add hashing and other security features (#12)

Reviewed-on: #12

.env

@@ -16,4 +16,86 @@
 # databases (if Sqlite) and other data that should be saved in a place other than the place where the program is launched.
 # REQUIRED if the application is inside the container
 # If you want to change this value, you need to change the values in Settings.json and move the file itself to the desired location.
-PATH_TO_SAVE=
+PATH_TO_SAVE=
+
+# Security
+
+# JWT signature token
+# string (UTF8)
+# This token will be used to create and verify the signature of JWT tokens.
+# The token must be equal to 64 characters
+SECURITY_SIGNING_TOKEN=
+
+# Token for JWT encryption
+# string (UTF8)
+# This token will be used to encrypt and decrypt JWT tokens.
+# The token must be equal to 32 characters
+SECURITY_ENCRYPTION_TOKEN=
+
+# Time in minutes, which indicates after which time the Refresh Token will become invalid
+# integer
+# The token indicates how long after the user is inactive, he will need to log in again
+SECURITY_LIFE_TIME_RT=1440
+
+# The time in a minute, which indicates that this is exactly what it takes to become a non-state
+# integer
+# Do not specify a time that is too long or too short. Optimally 5 > x > 60
+SECURITY_LIFE_TIME_JWT=15
+
+# Time in minutes, which indicates after which time the token of the first factor will become invalid
+# integer
+# Do not specify a short time. The user must be able to log in using the second factor
+SECURITY_LIFE_TIME_1_FA=15
+
+# An identifier that points to the server that created the token
+# string
+SECURITY_JWT_ISSUER=
+
+# ID of the audience for which the token is intended
+# string
+SECURITY_JWT_AUDIENCE=
+
+### Hashing
+
+# In order to set up hashing correctly, you need to start from the security requirements
+# You can use the settings that were used in https://github.com/P-H-C/phc-winner-argon2
+# These parameters have a STRONG impact on performance
+# When testing the system, these values were used:
+# 10 <= SECURITY_HASH_ITERATION <= 25 iterations
+# 16384 <= SECURITY_HASH_MEMORY <= 32768 KB
+# 4 <= SECURITY_HASH_PARALLELISM <= 8 lines
+# If we take all the large values, it will take a little more than 1 second to get the hash. If this time is critical, reduce the parameters
+
+# The number of iterations used to hash passwords in the Argon2 algorithm
+# integer
+# This parameter determines the number of iterations that the Argon2 algorithm goes through when hashing passwords.
+# Increasing this value can improve security by increasing the time it takes to calculate the password hash.
+# The average number of iterations to increase the security level should be set to at least 10.
+SECURITY_HASH_ITERATION=
+
+# The amount of memory used to hash passwords in the Argon2 algorithm
+# integer
+# 65536
+# This parameter determines the number of kilobytes of memory that will be used for the password hashing process.
+# Increasing this value may increase security, but it may also require more system resources.
+SECURITY_HASH_MEMORY=
+
+# Parallelism determines how many of the memory fragments divided into strips will be used to generate a hash
+# integer
+# This value affects the hash itself, but can be changed to achieve an ideal execution time, taking into account the processor and the number of cores.
+SECURITY_HASH_PARALLELISM=
+
+# The size of the output hash generated by the password hashing algorithm
+# integer
+SECURITY_HASH_SIZE=32
+
+# Additional protection for Argon2
+# string (BASE64)
+# (optional)
+# We recommend installing a token so that even if the data is compromised, an attacker cannot brute force a password without a token
+SECURITY_HASH_TOKEN=
+
+# The size of the salt used to hash passwords
+# integer
+# The salt is a random value added to the password before hashing to prevent the use of rainbow hash tables and other attacks.
+SECURITY_SALT_SIZE=16

Backend.sln

@@ -25,6 +25,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Persistence", "Persistence\
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ApiDto", "ApiDto\ApiDto.csproj", "{0335FA36-E137-453F-853B-916674C168FE}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Security", "Security\Security.csproj", "{47A3C065-4E1D-4B1E-AAB4-2BB8F40E56B4}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -51,6 +53,10 @@ Global
 		{0335FA36-E137-453F-853B-916674C168FE}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{0335FA36-E137-453F-853B-916674C168FE}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{0335FA36-E137-453F-853B-916674C168FE}.Release|Any CPU.Build.0 = Release|Any CPU
+		{47A3C065-4E1D-4B1E-AAB4-2BB8F40E56B4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{47A3C065-4E1D-4B1E-AAB4-2BB8F40E56B4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{47A3C065-4E1D-4B1E-AAB4-2BB8F40E56B4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{47A3C065-4E1D-4B1E-AAB4-2BB8F40E56B4}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Endpoint/Common/Services/Security/DistributedCacheService.cs

@@ -0,0 +1,32 @@
+using Microsoft.Extensions.Caching.Distributed;
+using Mirea.Api.Security.Common.Interfaces;
+using System;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.Endpoint.Common.Services.Security;
+
+public class DistributedCacheService(IDistributedCache cache) : ICacheService
+{
+    public async Task SetAsync<T>(string key, T value, TimeSpan? absoluteExpirationRelativeToNow = null, TimeSpan? slidingExpiration = null, CancellationToken cancellationToken = default)
+    {
+        var options = new DistributedCacheEntryOptions
+        {
+            AbsoluteExpirationRelativeToNow = absoluteExpirationRelativeToNow,
+            SlidingExpiration = slidingExpiration
+        };
+
+        var serializedValue = JsonSerializer.SerializeToUtf8Bytes(value);
+        await cache.SetAsync(key, serializedValue, options, cancellationToken);
+    }
+
+    public async Task<T?> GetAsync<T>(string key, CancellationToken cancellationToken = default)
+    {
+        var cachedValue = await cache.GetAsync(key, cancellationToken);
+        return cachedValue == null ? default : JsonSerializer.Deserialize<T>(cachedValue);
+    }
+
+    public Task RemoveAsync(string key, CancellationToken cancellationToken = default) =>
+        cache.RemoveAsync(key, cancellationToken);
+}

Endpoint/Common/Services/Security/JwtTokenService.cs

@@ -0,0 +1,82 @@
+using Microsoft.IdentityModel.Tokens;
+using Mirea.Api.Security.Common.Interfaces;
+using System;
+using System.IdentityModel.Tokens.Jwt;
+using System.Linq;
+using System.Security.Claims;
+
+namespace Mirea.Api.Endpoint.Common.Services.Security;
+
+public class JwtTokenService : IAccessToken
+{
+    public required string Issuer { private get; init; }
+    public required string Audience { private get; init; }
+    public TimeSpan Lifetime { private get; init; }
+
+    public ReadOnlyMemory<byte> EncryptionKey { get; init; }
+    public ReadOnlyMemory<byte> SigningKey { private get; init; }
+
+    public (string Token, DateTime ExpireIn) GenerateToken(string userId)
+    {
+        var tokenHandler = new JwtSecurityTokenHandler();
+        var signingKey = new SymmetricSecurityKey(SigningKey.ToArray());
+        var encryptionKey = new SymmetricSecurityKey(EncryptionKey.ToArray());
+        var signingCredentials = new SigningCredentials(signingKey, SecurityAlgorithms.HmacSha512);
+
+        var expires = DateTime.UtcNow.Add(Lifetime);
+
+        var tokenDescriptor = new SecurityTokenDescriptor
+        {
+            Issuer = Issuer,
+            Audience = Audience,
+            Expires = expires,
+            SigningCredentials = signingCredentials,
+            Subject = new ClaimsIdentity(
+            [
+                new Claim(ClaimTypes.Name, userId),
+                // todo: get role by userId
+                new Claim(ClaimTypes.Role, "")
+            ]),
+            EncryptingCredentials = new EncryptingCredentials(encryptionKey, SecurityAlgorithms.Aes256KW, SecurityAlgorithms.Aes256CbcHmacSha512)
+        };
+
+        var token = tokenHandler.CreateToken(tokenDescriptor);
+
+        return (tokenHandler.WriteToken(token), expires);
+    }
+
+    public DateTimeOffset GetExpireDateTime(string token)
+    {
+        var tokenHandler = new JwtSecurityTokenHandler();
+        var signingKey = new SymmetricSecurityKey(SigningKey.ToArray());
+        var encryptionKey = new SymmetricSecurityKey(EncryptionKey.ToArray());
+
+        var tokenValidationParameters = new TokenValidationParameters
+        {
+            ValidIssuer = Issuer,
+            ValidAudience = Audience,
+            IssuerSigningKey = signingKey,
+            TokenDecryptionKey = encryptionKey,
+            ValidateIssuer = true,
+            ValidateAudience = true,
+            ValidateIssuerSigningKey = true,
+            ValidateLifetime = false
+        };
+
+        try
+        {
+            var claimsPrincipal = tokenHandler.ValidateToken(token, tokenValidationParameters, out _);
+
+            var expClaim = claimsPrincipal.Claims.FirstOrDefault(c => c.Type == "exp");
+
+            if (expClaim != null && long.TryParse(expClaim.Value, out var expUnix))
+                return DateTimeOffset.FromUnixTimeSeconds(expUnix);
+        }
+        catch (SecurityTokenException)
+        {
+            return DateTimeOffset.MinValue;
+        }
+
+        return DateTimeOffset.MinValue;
+    }
+}

Endpoint/Common/Services/Security/MemoryCacheService.cs

@@ -0,0 +1,34 @@
+using Microsoft.Extensions.Caching.Memory;
+using Mirea.Api.Security.Common.Interfaces;
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.Endpoint.Common.Services.Security;
+
+public class MemoryCacheService(IMemoryCache cache) : ICacheService
+{
+    public Task SetAsync<T>(string key, T value, TimeSpan? absoluteExpirationRelativeToNow = null, TimeSpan? slidingExpiration = null, CancellationToken cancellationToken = default)
+    {
+        var options = new MemoryCacheEntryOptions
+        {
+            AbsoluteExpirationRelativeToNow = absoluteExpirationRelativeToNow,
+            SlidingExpiration = slidingExpiration
+        };
+
+        cache.Set(key, value, options);
+        return Task.CompletedTask;
+    }
+
+    public Task<T?> GetAsync<T>(string key, CancellationToken cancellationToken = default)
+    {
+        cache.TryGetValue(key, out T? value);
+        return Task.FromResult(value);
+    }
+
+    public Task RemoveAsync(string key, CancellationToken cancellationToken = default)
+    {
+        cache.Remove(key);
+        return Task.CompletedTask;
+    }
+}

Endpoint/Common/Services/Security/MemoryRevokedTokenService.cs

@@ -0,0 +1,17 @@
+using Microsoft.Extensions.Caching.Memory;
+using Mirea.Api.Security.Common.Interfaces;
+using System;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.Endpoint.Common.Services.Security;
+
+public class MemoryRevokedTokenService(IMemoryCache cache) : IRevokedToken
+{
+    public Task AddTokenToRevokedAsync(string token, DateTimeOffset expiresIn)
+    {
+        cache.Set(token, true, expiresIn);
+        return Task.CompletedTask;
+    }
+
+    public Task<bool> IsTokenRevokedAsync(string token) => Task.FromResult(cache.TryGetValue(token, out _));
+}

Endpoint/Endpoint.csproj

@@ -23,15 +23,17 @@
 
 	<ItemGroup>
 		<PackageReference Include="Cronos" Version="0.8.4" />
-		<PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
+		<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.6" />
 		<PackageReference Include="StackExchange.Redis" Version="2.7.33" />
 		<PackageReference Include="Swashbuckle.AspNetCore.Versioning" Version="2.0.0" />
+		<PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="7.6.0" />
 	</ItemGroup>
 
 	<ItemGroup>
 		<ProjectReference Include="..\ApiDto\ApiDto.csproj" />
 		<ProjectReference Include="..\Domain\Domain.csproj" />
 		<ProjectReference Include="..\Persistence\Persistence.csproj" />
+		<ProjectReference Include="..\Security\Security.csproj" />
 	</ItemGroup>
 
 </Project>

Endpoint/Program.cs

@@ -1,3 +1,4 @@
+using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.ApiExplorer;
@@ -6,20 +7,24 @@ using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Options;
+using Microsoft.IdentityModel.Tokens;
 using Mirea.Api.DataAccess.Application;
 using Mirea.Api.DataAccess.Persistence;
 using Mirea.Api.Endpoint.Common.Interfaces;
 using Mirea.Api.Endpoint.Common.Services;
+using Mirea.Api.Endpoint.Common.Services.Security;
 using Mirea.Api.Endpoint.Configuration;
 using Mirea.Api.Endpoint.Configuration.General;
 using Mirea.Api.Endpoint.Configuration.General.Validators;
 using Mirea.Api.Endpoint.Configuration.Swagger;
 using Mirea.Api.Endpoint.Middleware;
+using Mirea.Api.Security.Common.Interfaces;
 using Swashbuckle.AspNetCore.SwaggerGen;
 using System;
 using System.Collections;
 using System.IO;
 using System.Linq;
+using System.Text;
 
 namespace Mirea.Api.Endpoint;
 
@@ -40,6 +45,66 @@ public class Program
         return result.Build();
     }
 
+    private static IServiceCollection ConfigureJwtToken(IServiceCollection services, IConfiguration configuration)
+    {
+        var lifeTimeJwt = TimeSpan.FromMinutes(int.Parse(configuration["SECURITY_LIFE_TIME_JWT"]!));
+
+        var jwtDecrypt = Encoding.UTF8.GetBytes(configuration["SECURITY_ENCRYPTION_TOKEN"] ?? string.Empty);
+
+        if (jwtDecrypt.Length != 32)
+            throw new InvalidOperationException("The secret token \"SECURITY_ENCRYPTION_TOKEN\" cannot be less than 32 characters long. Now the size is equal is " + jwtDecrypt.Length);
+
+        var jwtKey = Encoding.UTF8.GetBytes(configuration["SECURITY_SIGNING_TOKEN"] ?? string.Empty);
+
+        if (jwtKey.Length != 64)
+            throw new InvalidOperationException("The signature token \"SECURITY_SIGNING_TOKEN\" cannot be less than 64 characters. Now the size is " + jwtKey.Length);
+
+        var jwtIssuer = configuration["SECURITY_JWT_ISSUER"];
+        var jwtAudience = configuration["SECURITY_JWT_AUDIENCE"];
+
+        if (string.IsNullOrEmpty(jwtAudience) || string.IsNullOrEmpty(jwtIssuer))
+            throw new InvalidOperationException("The \"SECURITY_JWT_ISSUER\" and \"SECURITY_JWT_AUDIENCE\" are not specified");
+
+        services.AddSingleton<IAccessToken, JwtTokenService>(_ => new JwtTokenService
+        {
+            Audience = jwtAudience,
+            Issuer = jwtIssuer,
+            Lifetime = lifeTimeJwt,
+            EncryptionKey = jwtDecrypt,
+            SigningKey = jwtKey
+        });
+
+        services.AddAuthentication(options =>
+        {
+            options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
+            options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
+        }).AddJwtBearer(options =>
+        {
+            options.TokenValidationParameters = new TokenValidationParameters
+            {
+                ValidateIssuer = true,
+                ValidIssuer = jwtIssuer,
+
+                ValidateAudience = true,
+                ValidAudience = jwtAudience,
+
+                ValidateLifetime = true,
+                ValidateIssuerSigningKey = true,
+                IssuerSigningKey = new SymmetricSecurityKey(jwtKey),
+                TokenDecryptionKey = new SymmetricSecurityKey(jwtDecrypt)
+            };
+        });
+
+        return services;
+    }
+
+    private static IServiceCollection ConfigureSecurity(IServiceCollection services)
+    {
+        services.AddSingleton<IAccessToken, JwtTokenService>();
+        services.AddSingleton<IRevokedToken, MemoryRevokedTokenService>();
+
+        return services;
+    }
     public static void Main(string[] args)
     {
         Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);

Security/Common/Domain/AuthToken.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace Mirea.Api.Security.Common.Domain;
+
+public class AuthToken
+{
+    public required string RefreshToken { get; set; }
+    public required string UserAgent { get; set; }
+    public required string Ip { get; set; }
+    public required string UserId { get; set; }
+    public required string AccessToken { get; set; }
+    public DateTime CreatedAt { get; set; }
+}

Security/Common/Domain/PreAuthToken.cs

@@ -0,0 +1,10 @@
+namespace Mirea.Api.Security.Common.Domain;
+
+public class PreAuthToken
+{
+    public required string Fingerprint { get; set; }
+    public required string UserAgent { get; set; }
+    public required string UserId { get; set; }
+    public required string Ip { get; set; }
+    public required string Token { get; set; }
+}

Security/Common/Dto/Requests/TokenRequest.cs

@@ -0,0 +1,8 @@
+namespace Mirea.Api.Security.Common.Dto.Requests;
+
+public class TokenRequest
+{
+    public required string Fingerprint { get; set; }
+    public required string UserAgent { get; set; }
+    public required string Ip { get; set; }
+}

Security/Common/Dto/Responses/AuthTokenResponse.cs

@@ -0,0 +1,10 @@
+using System;
+
+namespace Mirea.Api.Security.Common.Dto.Responses;
+
+public class AuthTokenResponse
+{
+    public required string AccessToken { get; set; }
+    public required string RefreshToken { get; set; }
+    public DateTime ExpiresIn { get; set; }
+}

Security/Common/Dto/Responses/PreAuthTokenResponse.cs

@@ -0,0 +1,9 @@
+using System;
+
+namespace Mirea.Api.Security.Common.Dto.Responses;
+
+public class PreAuthTokenResponse
+{
+    public required string Token { get; set; }
+    public DateTime ExpiresIn { get; set; }
+}

Security/Common/Interfaces/IAccessToken.cs

@@ -0,0 +1,9 @@
+using System;
+
+namespace Mirea.Api.Security.Common.Interfaces;
+
+public interface IAccessToken
+{
+    (string Token, DateTime ExpireIn) GenerateToken(string userId);
+    DateTimeOffset GetExpireDateTime(string token);
+}

Security/Common/Interfaces/ICacheService.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.Security.Common.Interfaces;
+
+public interface ICacheService
+{
+    Task SetAsync<T>(string key, T value,
+        TimeSpan? absoluteExpirationRelativeToNow = null,
+        TimeSpan? slidingExpiration = null,
+        CancellationToken cancellationToken = default);
+
+    Task<T?> GetAsync<T>(string key, CancellationToken cancellationToken = default);
+    Task RemoveAsync(string key, CancellationToken cancellationToken = default);
+}

Security/Common/Interfaces/IRevokedToken.cs

@@ -0,0 +1,10 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.Security.Common.Interfaces;
+
+public interface IRevokedToken
+{
+    Task AddTokenToRevokedAsync(string token, DateTimeOffset expiresIn);
+    Task<bool> IsTokenRevokedAsync(string token);
+}

Security/DependencyInjection.cs

@@ -0,0 +1,57 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Mirea.Api.Security.Common.Interfaces;
+using Mirea.Api.Security.Services;
+using System;
+
+namespace Mirea.Api.Security;
+
+public static class DependencyInjection
+{
+    public static IServiceCollection AddSecurityServices(this IServiceCollection services, IConfiguration configuration)
+    {
+        var saltSize = int.Parse(configuration["SECURITY_SALT_SIZE"]!);
+        var hashSize = int.Parse(configuration["SECURITY_HASH_SIZE"]!);
+        var iteration = int.Parse(configuration["SECURITY_HASH_ITERATION"]!);
+        var memory = int.Parse(configuration["SECURITY_HASH_MEMORY"]!);
+        var parallelism = int.Parse(configuration["SECURITY_HASH_PARALLELISM"]!);
+
+        services.AddSingleton(new PasswordHashService
+        {
+            SaltSize = saltSize,
+            HashSize = hashSize,
+            Iterations = iteration,
+            Memory = memory,
+            Parallelism = parallelism,
+            Secret = configuration["SECURITY_HASH_TOKEN"]
+        });
+
+        var lifeTimePreAuthToken = TimeSpan.FromMinutes(int.Parse(configuration["SECURITY_LIFE_TIME_1_FA"]!));
+
+        services.AddSingleton(provider =>
+        {
+            var cache = provider.GetRequiredService<ICacheService>();
+
+            return new PreAuthService(cache)
+            {
+                Lifetime = lifeTimePreAuthToken
+            };
+        });
+
+        var lifeTimeRefreshToken = TimeSpan.FromMinutes(int.Parse(configuration["SECURITY_LIFE_TIME_RT"]!));
+
+        services.AddSingleton(provider =>
+        {
+            var cacheService = provider.GetRequiredService<ICacheService>();
+            var accessTokenService = provider.GetRequiredService<IAccessToken>();
+            var revokedTokenService = provider.GetRequiredService<IRevokedToken>();
+
+            return new AuthService(cacheService, accessTokenService, revokedTokenService)
+            {
+                Lifetime = lifeTimeRefreshToken
+            };
+        });
+
+        return services;
+    }
+}

Security/Security.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFramework>net8.0</TargetFramework>
+		<ImplicitUsings>disable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+		<Company>Winsomnia</Company>
+		<Version>1.0.0-a0</Version>
+		<AssemblyVersion>1.0.0.0</AssemblyVersion>
+		<FileVersion>1.0.0.0</FileVersion>
+		<AssemblyName>Mirea.Api.Security</AssemblyName>
+		<RootNamespace>$(AssemblyName)</RootNamespace>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Konscious.Security.Cryptography.Argon2" Version="1.3.0" />
+		<PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="8.0.0" />
+		<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.0" />
+	</ItemGroup>
+
+</Project>

Security/Services/AuthService.cs

@@ -0,0 +1,103 @@
+using Mirea.Api.Security.Common.Domain;
+using Mirea.Api.Security.Common.Dto.Requests;
+using Mirea.Api.Security.Common.Dto.Responses;
+using Mirea.Api.Security.Common.Interfaces;
+using System;
+using System.Security;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.Security.Services;
+
+public class AuthService(ICacheService cache, IAccessToken accessTokenService, IRevokedToken revokedToken)
+{
+    public TimeSpan Lifetime { private get; init; }
+
+    private static string GenerateRefreshToken() => Guid.NewGuid().ToString().Replace("-", "") +
+                                                    GeneratorKey.GenerateString(32);
+    private (string Token, DateTime ExpireIn) GenerateAccessToken(string userId) =>
+        accessTokenService.GenerateToken(userId);
+
+    private static string GetAuthCacheKey(string fingerprint) => $"{fingerprint}_auth_token";
+
+    private Task SetAuthTokenDataToCache(string fingerprint, AuthToken data, CancellationToken cancellation) =>
+        cache.SetAsync(
+            GetAuthCacheKey(fingerprint),
+            JsonSerializer.SerializeToUtf8Bytes(data),
+            slidingExpiration: Lifetime,
+            cancellationToken: cancellation);
+
+    private Task RevokeAccessToken(string token) =>
+        revokedToken.AddTokenToRevokedAsync(token, accessTokenService.GetExpireDateTime(token));
+
+    public async Task<AuthTokenResponse> GenerateAuthTokensAsync(TokenRequest request, string userId, CancellationToken cancellation = default)
+    {
+        var refreshToken = GenerateRefreshToken();
+        var accessToken = GenerateAccessToken(userId);
+
+        var authTokenStruct = new AuthToken
+        {
+            CreatedAt = DateTime.UtcNow,
+            Ip = request.Ip,
+            RefreshToken = refreshToken,
+            UserAgent = request.UserAgent,
+            UserId = userId,
+            AccessToken = accessToken.Token
+        };
+
+        await SetAuthTokenDataToCache(request.Fingerprint, authTokenStruct, cancellation);
+
+        return new AuthTokenResponse
+        {
+            AccessToken = accessToken.Token,
+            ExpiresIn = accessToken.ExpireIn,
+            RefreshToken = authTokenStruct.RefreshToken
+        };
+    }
+
+    public async Task<AuthTokenResponse> GenerateAuthTokensWithPreAuthAsync(TokenRequest request, string preAuthToken,
+        CancellationToken cancellation = default) =>
+        await GenerateAuthTokensAsync(request,
+            await new PreAuthService(cache).MatchToken(request, preAuthToken, cancellation),
+            cancellation);
+
+    public async Task<AuthTokenResponse> RefreshTokenAsync(TokenRequest request, string refreshToken, CancellationToken cancellation = default)
+    {
+        var authToken = await cache.GetAsync<AuthToken>(GetAuthCacheKey(request.Fingerprint), cancellation)
+                        ?? throw new SecurityException(request.Fingerprint);
+
+        if (authToken.RefreshToken != refreshToken ||
+            authToken.UserAgent != request.UserAgent &&
+            authToken.Ip != request.Ip)
+        {
+            await cache.RemoveAsync(request.Fingerprint, cancellation);
+            await RevokeAccessToken(authToken.AccessToken);
+
+            throw new SecurityException(request.Fingerprint);
+        }
+
+        var accessToken = GenerateAccessToken(authToken.UserId);
+        await RevokeAccessToken(authToken.AccessToken);
+
+        authToken.AccessToken = accessToken.Token;
+        await SetAuthTokenDataToCache(request.Fingerprint, authToken, cancellation);
+
+        return new AuthTokenResponse
+        {
+            AccessToken = accessToken.Token,
+            ExpiresIn = accessToken.ExpireIn,
+            RefreshToken = GenerateRefreshToken()
+        };
+    }
+
+    public async Task LogoutAsync(string fingerprint, CancellationToken cancellation = default)
+    {
+        var authTokenStruct = await cache.GetAsync<AuthToken>(GetAuthCacheKey(fingerprint), cancellation);
+        if (authTokenStruct == null) return;
+
+        await RevokeAccessToken(authTokenStruct.AccessToken);
+
+        await cache.RemoveAsync(fingerprint, cancellation);
+    }
+}

Security/Services/GeneratorKey.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Buffers.Text;
+using System.Text;
+
+namespace Mirea.Api.Security.Services;
+
+public static class GeneratorKey
+{
+    public static ReadOnlySpan<byte> GenerateBytes(int size)
+    {
+        var key = new byte[size];
+        using var rng = System.Security.Cryptography.RandomNumberGenerator.Create();
+        rng.GetNonZeroBytes(key);
+        return key;
+    }
+
+    public static string GenerateBase64(int size) =>
+        Convert.ToBase64String(GenerateBytes(size));
+
+    public static string GenerateString(int size)
+    {
+        var randomBytes = GenerateBytes(size);
+        Span<byte> utf8Bytes = new byte[Base64.GetMaxEncodedToUtf8Length(randomBytes.Length)];
+
+        Base64.EncodeToUtf8(randomBytes, utf8Bytes, out _, out _);
+        return Encoding.UTF8.GetString(utf8Bytes);
+    }
+}

Security/Services/PasswordHashService.cs

@@ -0,0 +1,56 @@
+using Konscious.Security.Cryptography;
+using System;
+using System.Text;
+
+namespace Mirea.Api.Security.Services;
+
+public class PasswordHashService
+{
+    public int SaltSize { private get; init; }
+    public int HashSize { private get; init; }
+    public int Iterations { private get; init; }
+    public int Memory { private get; init; }
+    public int Parallelism { private get; init; }
+    public string? Secret { private get; init; }
+
+    private ReadOnlySpan<byte> HashPassword(string password, ReadOnlySpan<byte> salt)
+    {
+        var argon2 = new Argon2id(Encoding.UTF8.GetBytes(password))
+        {
+            Iterations = Iterations,
+            MemorySize = Memory,
+            DegreeOfParallelism = Parallelism,
+            Salt = salt.ToArray()
+        };
+
+        if (!string.IsNullOrEmpty(Secret))
+            argon2.KnownSecret = Convert.FromBase64String(Secret);
+
+        return argon2.GetBytes(HashSize);
+    }
+
+    private static bool ConstantTimeComparison(ReadOnlySpan<byte> a, ReadOnlySpan<byte> b)
+    {
+        if (a.Length != b.Length)
+            return false;
+
+        int result = 0;
+        for (int i = 0; i < a.Length; i++)
+            result |= a[i] ^ b[i];
+        return result == 0;
+    }
+
+    public (string Salt, string Hash) HashPassword(string password)
+    {
+        var salt = GeneratorKey.GenerateBytes(SaltSize);
+        var hash = HashPassword(password, salt);
+
+        return (Convert.ToBase64String(salt), Convert.ToBase64String(hash));
+    }
+
+    public bool VerifyPassword(string password, ReadOnlySpan<byte> salt, ReadOnlySpan<byte> hash) =>
+        ConstantTimeComparison(HashPassword(password, salt), hash);
+
+    public bool VerifyPassword(string password, string saltBase64, string hashBase64) =>
+        VerifyPassword(password, Convert.FromBase64String(saltBase64), Convert.FromBase64String(hashBase64));
+}

Security/Services/PreAuthService.cs

@@ -0,0 +1,64 @@
+using Mirea.Api.Security.Common.Domain;
+using Mirea.Api.Security.Common.Dto.Requests;
+using Mirea.Api.Security.Common.Dto.Responses;
+using Mirea.Api.Security.Common.Interfaces;
+using System;
+using System.Security;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.Security.Services;
+
+public class PreAuthService(ICacheService cache)
+{
+    public TimeSpan Lifetime { private get; init; }
+
+    private static string GeneratePreAuthToken() => Guid.NewGuid().ToString().Replace("-", "") +
+                                                      GeneratorKey.GenerateString(16);
+
+    private static string GetPreAuthCacheKey(string fingerprint) => $"{fingerprint}_pre_auth_token";
+
+    public async Task<PreAuthTokenResponse> GeneratePreAuthTokenAsync(TokenRequest request, string userId, CancellationToken cancellation = default)
+    {
+        var preAuthToken = GeneratePreAuthToken();
+
+        var preAuthTokenStruct = new PreAuthToken
+        {
+            Fingerprint = request.Fingerprint,
+            UserId = userId,
+            UserAgent = request.UserAgent,
+            Token = preAuthToken,
+            Ip = request.Ip
+        };
+
+        await cache.SetAsync(
+            GetPreAuthCacheKey(request.Fingerprint),
+            JsonSerializer.SerializeToUtf8Bytes(preAuthTokenStruct),
+            absoluteExpirationRelativeToNow: Lifetime,
+            cancellationToken: cancellation);
+
+        return new PreAuthTokenResponse
+        {
+            Token = preAuthToken,
+            ExpiresIn = DateTime.UtcNow.Add(Lifetime)
+        };
+    }
+    public async Task<string> MatchToken(TokenRequest request, string preAuthToken, CancellationToken cancellation = default)
+    {
+        var preAuthTokenStruct = await cache.GetAsync<PreAuthToken>(GetPreAuthCacheKey(request.Fingerprint), cancellation)
+            ?? throw new SecurityException($"The token was not found using fingerprint \"{request.Fingerprint}\"");
+
+        if (preAuthTokenStruct == null ||
+            preAuthTokenStruct.Token != preAuthToken ||
+            (preAuthTokenStruct.UserAgent != request.UserAgent &&
+             preAuthTokenStruct.Ip != request.Ip))
+        {
+            throw new SecurityException("It was not possible to verify the authenticity of the token");
+        }
+
+        await cache.RemoveAsync(GetPreAuthCacheKey(request.Fingerprint), cancellation);
+
+        return preAuthTokenStruct.UserId;
+    }
+}