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I have an elliptic curve $E\backslash \mathbb{F}_p $ (for $p$ prime) which has a point $P$ of order $n$

I need to choose an integer $s\overset{R}{\leftarrow}[1,n]$

Am I right in saying that $s$ should be a random number in the range $[1,n]$? If not, could someone set me straight please.

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    Same question indeed http://math.stackexchange.com/questions/2131655/explanation-of-left-cdot-right-notation a mathematical notation is always explained by the context – 2017-02-06
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    That question was also asked by me. I was just asking if I had understood the notation correctly as I have never seen it before – 2017-02-06
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    Next time ask it in your other question, this question alone is "missing context" – 2017-02-06
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    All I'm asking for is clarification of the meaning of $\overset{R}{\leftarrow}$ - this is as much context as I have to work with – 2017-02-06

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