Cryptography is a deep mystery to many people (even techies). Many people assume you must be an accomplished mathematician to understand it. There are two basic kinds of encryption: symmetric key, where the same key is used to encrypt and decrypt, and asymmetric key, where there are two interrelated keys, a public key and a private key. While there are some deep math issues in asymmetric key algorithms, symmetric key algorithms involve very little math, and you can make very ...
1. Basic Cryptography: Symmetric Key Encryption
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