JetPasswordHandler (Jackcess Encrypt 5.0.2 API)

java.lang.Object
- com.healthmarketscience.jackcess.crypt.impl.JetPasswordHandler

```
public class JetPasswordHandler
extends Object
```
Adds, changes and removes the database password on a jet 4 database.
Two pieces of state have to agree. The password field in page 0 is what makes ms access prompt for a password, and every SID stored in the database is masked with an rc4 keystream whose key is folded out of page 0, the password field included. Writing only the password field produces a database which ms access prompts for and then refuses to open, reporting that the user does not have permission.
So changing the password means re-masking every SID under the new key, which SidRemasker does.

Author:

James Ahlborn

Constructor Summary

Constructors
Constructor Description

JetPasswordHandler(Database db)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`setPassword(String password)`	Sets the database password, or removes it if the given password is `null` or empty.
`static void`	`validateFormat(JetFormat format)`	Fails unless the given format holds the password field the way this writes it.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - JetPasswordHandler
```
public JetPasswordHandler(Database db)
```
- Method Detail
  - setPassword
```
public void setPassword(String password)
                 throws IOException
```
    Sets the database password, or removes it if the given password is null or empty.
    
    Throws:
    
    IOException
  - validateFormat
```
public static void validateFormat(JetFormat format)
```
    Fails unless the given format holds the password field the way this writes it.