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Do you know the article If You’re Typing the Letters A-E-S Into Your Code You’re Doing It Wrong? This is basically the same, but with a focus on hashes. There is a quite important misconception in your system: you stated "One of its design goals was high security." and then you start implementing your selfmade algorithms, even stating: "same key is used ...


This was pretty vexing, but for some reason I could only create the "big endian" results given by table 2 in this paper. I get the same result as you for the first message ($M.$N0) : 8da3a17b43e0e134bdc17557ffef15ff and a different value for the second message. The following code seems to work for a test vector given in table 2: <?php $M0='02dd31d1 ...

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