[PM-27280] Support v2 encryption on key-connector signups (#6712)

* account v2 registration for key connector

* use new user repository functions

* test coverage

* integration test coverage

* documentation

* code review

* missing test coverage

* fix failing test

* failing test

* incorrect ticket number

* moved back request model to Api, created dedicated data class in Core

* sql stored procedure type mismatch, simplification

* key connector authorization handler

src/Infrastructure.Dapper/Repositories/UserRepository.cs

@@ -3,6 +3,7 @@ using System.Text.Json;
 using Bit.Core;
 using Bit.Core.Billing.Premium.Models;
 using Bit.Core.Entities;
+using Bit.Core.Enums;
 using Bit.Core.KeyManagement.Models.Data;
 using Bit.Core.KeyManagement.UserKey;
 using Bit.Core.Models.Data;
@@ -401,6 +402,32 @@ public class UserRepository : Repository<User, Guid>, IUserRepository
         return result.SingleOrDefault();
     }
 
+    public UpdateUserData SetKeyConnectorUserKey(Guid userId, string keyConnectorWrappedUserKey)
+    {
+        return async (connection, transaction) =>
+        {
+            var timestamp = DateTime.UtcNow;
+
+            await connection!.ExecuteAsync(
+                "[dbo].[User_UpdateKeyConnectorUserKey]",
+                new
+                {
+                    Id = userId,
+                    Key = keyConnectorWrappedUserKey,
+                    // Key Connector does not use KDF, so we set some defaults
+                    Kdf = KdfType.Argon2id,
+                    KdfIterations = AuthConstants.ARGON2_ITERATIONS.Default,
+                    KdfMemory = AuthConstants.ARGON2_MEMORY.Default,
+                    KdfParallelism = AuthConstants.ARGON2_PARALLELISM.Default,
+                    UsesKeyConnector = true,
+                    RevisionDate = timestamp,
+                    AccountRevisionDate = timestamp
+                },
+                transaction: transaction,
+                commandType: CommandType.StoredProcedure);
+        };
+    }
+
     private async Task ProtectDataAndSaveAsync(User user, Func<Task> saveTask)
     {
         if (user == null)