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J2EE™ Security for Servlets, EJBs and Web Services: Applying Theory and Standards to Practice by Pankaj Kumar

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Cryptography with crypttool

While writing this book, I strongly felt the need for such a tool that could allow me to carry out the cryptographic operations without writing code and not finding one, wrote crypttool, a command line utility to carry out common cryptographic operations. This tool is patterned after keytool, a command line utility bundled with J2SE for generating public and private key pairs and managing certificates. In a number of ways, crypttool complements keytool by providing additional functionality to a Java developer.

Here is a brief description of how crypttool operates: it accepts a command name and other input as command line options, carries out the operation and writes the result to the standard output. You can get a ...

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