Where is “SetPassword” or “ChangePassword” in SQLiteConnection class?

问题

I'm just learning how to encrypt/decrypt SQLite database.
I found a way to encrypt, as in this post SQLite with encryption/password protection

This page's best answer said that we can use SEE,wxSQLite,SQLCipher,SQLiteCrypt, etc... to encrypt.

I can understand.

And, another answer said that we can use:

SQLiteConnection conn = new SQLiteConnection("Data Source=MyDatabase.sqlite;Version=3;");
conn.SetPassword("password");
conn.open();

This page also says the same: Password Protect a SQLite DB. Is it possible?

However, SQLiteConnection doesn't have SetPassword nor ChangePassword methods. I'm very confused.

Where are SetPasword or ChangePassword?
Are these in SEE, wxSQLite,SQLCipher,SQLiteCrypt?

[Development environment]
VisualStudio2010 .NET Framework 4 Client Profile System.Data.SQLite.dll (https://system.data.sqlite.org/index.html/doc/trunk/www/downloads.wiki)

I downloaded zip from there, and I picked up "System.Data.SQLite.dll"

回答1:

SQLite no longer has "SetPassword" or "ChangePassword".

To initially set the password you use the following:

var connectionString = new SqliteConnectionStringBuilder(baseConnectionString)
{
    Mode = SqliteOpenMode.ReadWriteCreate,
    Password = password
}.ToString();

To change the password you would do the following:

var command = connection.CreateCommand();
command.CommandText = "SELECT quote($newPassword);";
command.Parameters.AddWithValue("$newPassword", newPassword);
var quotedNewPassword = (string)command.ExecuteScalar();

command.CommandText = "PRAGMA rekey = " + quotedNewPassword;
command.Parameters.Clear();
command.ExecuteNonQuery();

来源：https://stackoverflow.com/questions/62294577/where-is-setpassword-or-changepassword-in-sqliteconnection-class

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sqlite