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Section A.1. The keytool

A.1. The keytool

In Chapter 11 we discussed the KeyStore class, which provides an interface to a key management system. The Java platform comes with a tool—keytool—that provides an administrative interface to that class. Keytool allows end users and system administrators to add, delete, and modify entries in the keystore (provided that they have sufficient permissions, of course).

When we discussed the KeyStore class, we mentioned that it had some limitations that may lead you to write your own implementation of that class. The good news is that if you write such a class, you may still use keytool to administer your set of keys. Since keytool uses the standard interface provided by the KeyStore class, it will be (mostly) compatible with any new class that you install into that interface (we'll remind you how to do that at the end of this appendix). However, there are some exceptions to this: keytool itself places some restrictions upon the algorithms that may be used to support particular keys.


  

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