A Guide to Cryptography in PHP

"In an ideal world, words like cryptography and security wouldn't even exist, but the real world is far from perfect, so software developers have to spend a good deal of time building security into applications. Cryptography is just one piece of the security puzzle, along with SSL/TLS, certificates, digital signatures, and so on. This article explains how to use PHP to implement the most common cryptographic algorithms. In addition to describing PHP's default encryption functions, you'll see how to use a wide variety of cryptographic libraries and packages..."

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