The Java TM Tutorial

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Trail: Security in JDK 1.2
Lesson: Signing Code and Granting It Permissions

## Set Up a Policy File to Grant the Required Permission

> Next, you will use the Policy Tool to create a policy file named `raypolicy` and in it grant a permission to code from a signed JAR file.

> The JAR file must have been signed using the private key corresponding to the public key imported into Ray's keystore (`raystore`) in the previous step. The certificate containing the public key is aliased by `susan` in the keystore. We will grant such code permission to read any file in the `C:\TestData\` directory.

> The steps are:

> 1. Start Policy Tool

> 2. Specify the Keystore

> 3. Add a Policy Entry with a SignedBy Alias

> 4. Save the Policy File

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