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In computer science, and implementation of crypto, ROTL stands for ROTate Left. ROTL is also noted ROL, or RLNC for Rotate Left No Carry. On a $w$-bit word with bits numbered from $0$, bit number $j$ of the input of ROTL with a shift count of $n$ goes to bit $j+n\bmod w$ of the result; $n=1$ unless otherwise specified (and is the only value available on ...


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That should be possible yes. It's probably ECB or CBC mode encryption. If it is CBC mode encryption then the first 8 bytes (16 hex characters) may be the IV. Otherwise it is likely to be a vector consisting of 8 zero bytes (or eight 00 hex characters of course). I presume here that you can distinguish the result from random of course. If that's not the case ...



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