لطفا منتظر باشید ...
6.3. Authentication and Cryptography
The java.security
package (and its subpackages) provides classes and interfaces for
authentication .
As described in Chapter 5, this piece of the
security architecture allows Java code to create and verify message
digests and digital signatures. These
technologies can ensure that any data (such as a Java class file) is
authentic: that it originates from the person who claims to have
originated it and has not been accidentally or maliciously modified
in transit.The Java Cryptography Extension, or JCE,
consists of the javax.crypto package and its
subpackages. These packages define classes for encryption and
decryption of data. This is an important security-related feature for
many applications, but is not directly relevant to the basic problem
of preventing untrusted code from damaging the host system, so it is
not discussed in this chapter.
