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IBM developerWorks : Java : Education - Tutorials
Java security, Part 1: Crypto basics
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1. About this tutorial
  


A note on the code examples page 4 of 5


The code examples dump encrypted data directly to the screen. In most cases, this will result in strange-looking control characters, some of which may occasionally cause screen-formatting problems. This is not good programming practice (it would be better to convert them to displayable ASCII characters or decimal representations), but has been done here to keep the code examples and their output brief.

In most cases in the example execution sections, the actual strings have been modified to be compatible with the character set requirements of this tutorial. Also, in most examples, we look up and display the actual security provider library used for a given algorithm. This is done to give the user a better feel of which libraries are called for which functions. Why? Because, in most installations, there are a number of these providers installed.


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