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Two simple remarks: The polynomial $ x^k-1$ can be factorised over the integers as a product of (irreducible) cyclotomic polynomials: $ $ x^k-1 = \prod_{d|k}\Phi_d(x).$ $ If we choose $ k$ to be a number that has a lot of divisors, then $ x^k-1$ will have a lot of factors. For example, if $ k$Read more

I’m reading the Confidential Transactions paper, and it says that the blinding factor in the pedersen commitment is derived using a shared secret, but I can’t understand what’s preventing the sender from cheating a bit. The sender generates a ephemeral private key, and derives the secret as (ephemeral private key * receivers public key), andRead more

Is meta description still a factor of ranking (in SEO) or is just to increase CTR ? … It’s limit is increased from 160 to 300 characters.Read more

I used TWRP to make a backup ( with the default options ) to make a backup to my external SDCard. Then I used TWRP to perform a default factory reset I did not manually touch anything else. I booted my android to check if I got a factory reset but I did not wipeRead more

I am new to Mathematica and am trying to run the WSTP prebuilt example factor, but it cannot finish executing. It just hangs after the “Integer to factor:” prompt. This occurred after following the instructions on the Windows Development page found here. This was previously asked but not fully answered and I am encountering theRead more

I’ve been using the APC AP8659NA3 Metered-Per-Outlet PDU in my rack for a few months now with a 120V 20A circuit (I know it was designed for… | Read the rest of http://www.webhostingtalk.com/showthread.php?t=1688693&goto=newpostRead more

help me please in this?… | Read the rest of http://www.webhostingtalk.com/showthread.php?t=1688228&goto=newpostRead more

help me please in this?… | Read the rest of http://www.webhostingtalk.com/showthread.php?t=1688228&goto=newpostRead more

How would you precalculate a big table of the biggest prime factor of every integer in $ 2 \dots 10^K$ ? ($ K=9$ for example). The goal would be to do it once for all, save it to a file, and reload it later for fast computations. I tried with R: library(gmp) # the fastestRead more

I need to set up 2 factor authentication using a usb stick/drive for some course work. Im using ubuntu 16.04 and it seems that libpam and pamusb no longer work for this version. I don’t want to use google authenticator, I don’t want to use a mobile phone, I want to use a USB stick.Read more