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2020-11-07 14:54:00 hackage haskell-formatter 2.0.3 - Haskell source code formatter https://hackage.haskell.org/package/haskell-formatter-2.0.3 (evolutics)
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2020-11-07 15:20:49 <Franciman> hi, what is the state of wxhaskell? It seems to be abandoned
2020-11-07 15:21:50 <merijn> Yes, no, maybe?
2020-11-07 15:21:56 <[exa]> Franciman: if you totally don't need precisely wxwidgets, I suggest you go with a more lively toolkit
2020-11-07 15:22:06 → Eric-K joins (~Eric-K@s91904426.blix.com)
2020-11-07 15:22:16 <[exa]> (if you need them, advice still applies)
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2020-11-07 15:22:51 <eayus> I'm trying to use the "cryptonite" package to generate random numbers, however I'm always getting the same result of all bytes=256. I'm using the "getEntropy" function from Crypto.Random.Entropy (https://hackage.haskell.org/package/cryptonite-0.27/docs/Crypto-Random-Entropy.html). It doesn't mention anything about seeding. Anyone have any ideas?
2020-11-07 15:23:31 <[exa]> eayus: can you post a minimal (non)working example that does this?
2020-11-07 15:23:41 <[exa]> (also, byte value 256 is fishy)
2020-11-07 15:23:44 <merijn> That...does not like a function users should be using
2020-11-07 15:24:04 <Franciman> [exa], apart from gi-gtk which more lively toolkit is there?
2020-11-07 15:24:07 <eayus> I've tried various other functions in the library with the same result
2020-11-07 15:24:09 → Tario joins (~Tario@201.192.165.173)
2020-11-07 15:24:18 <eayus> I'll make a pastebin, one sec
2020-11-07 15:25:04 <[exa]> Franciman: there's been some fuss about declarative gtk in haskell which I looked at briefly and found quite nice. Gtk is probably the sanest wxw alternative.
2020-11-07 15:25:22 <Franciman> the problem with gtk is that I need a treeview with a custom model
2020-11-07 15:25:33 <Franciman> but it seems to be really hard to create an instance of TreeModel
2020-11-07 15:25:34 <Franciman> :<
2020-11-07 15:25:39 <[exa]> here https://wickstrom.tech/programming/2018/09/04/declarative-gtk-programming-with-haskell.html
2020-11-07 15:26:05 <eayus> Here is a minimal example of the problem https://pastebin.com/ifLkdiYW
2020-11-07 15:26:19 <eayus> Using the bytestring and cryptonite libraries
2020-11-07 15:26:23 × gawen quits (~gawen@movzbl.root.sx) (Quit: cya)
2020-11-07 15:26:30 <Franciman> thanx [exa]
2020-11-07 15:26:30 → cosimone joins (~cosimone@2001:b07:ae5:db26:d849:743b:370b:b3cd)
2020-11-07 15:26:55 <merijn> eayus: What do you need said entropy for? (i.e. is there no simpler/more robust way to get what you need?)
2020-11-07 15:27:05 <[exa]> Franciman: untested though
2020-11-07 15:27:15 <merijn> oof
2020-11-07 15:27:28 <merijn> cryptonite use /dev/random with higher priority than /dev/urandom
2020-11-07 15:27:55 <[exa]> eayus: can you instead just read from /dev/urandom as recommended by ....just read merijn's message :D
2020-11-07 15:28:11 <merijn> eayus: Basically: Isn't it just easier to read N bytes from /dev/urandom (depends on if you need Windows support, I guess)
2020-11-07 15:28:22 <eayus> I just need to generate a cryptographically secure random number. I tried using other functions in the library (such as "seedNew"; etc) with same result
2020-11-07 15:28:39 <eayus> I could do that, just seems a bit awkward
2020-11-07 15:28:59 <[exa]> eayus: try `getEntropy` from System.Entropy
2020-11-07 15:29:36 × SupaYoshi quits (~supayoshi@213-10-140-13.fixed.kpn.net) (Ping timeout: 256 seconds)
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2020-11-07 15:30:00 <eayus> Ah now that works
2020-11-07 15:30:15 <merijn> Crypto.Entropy seems more of an internal thing as the docs in Crypto.Tutorial don't mention any entropy relates thing at all
2020-11-07 15:30:49 <eayus> Maybe, but I was tried to follow the method in Crypto.Tutorial and had the same problem
2020-11-07 15:30:53 × mat1 quits (~Thunderbi@dslb-084-058-211-084.084.058.pools.vodafone-ip.de) (Quit: mat1)
2020-11-07 15:30:55 <[exa]> Franciman: re the treeview model, anything specific?
2020-11-07 15:31:23 <Franciman> I have my data structure (which is a bit more involved than a simple list, it's a finger tree that enables me to run interval queries)
2020-11-07 15:31:36 <Franciman> I would like to use it as a model for the treeview
2020-11-07 15:31:36 × SupaYoshii quits (~supayoshi@213-10-140-13.fixed.kpn.net) (Read error: Connection reset by peer)
2020-11-07 15:31:40 → mat1 joins (~Thunderbi@dslb-084-058-211-084.084.058.pools.vodafone-ip.de)
2020-11-07 15:31:47 <merijn> eayus: Anyway, I wouldn't necessarily trust my crypto to any of the "native Haskell" libraries due to lack of auditing. I like cryptonite's hashing stuff, but that's much less security sensitive (and trivial to test)
2020-11-07 15:31:52 <Franciman> so that I don't have to duplicate data (and thus have problems with undo redo etc)
2020-11-07 15:33:38 → SupaYoshi joins (~supayoshi@213-10-140-13.fixed.kpn.net)
2020-11-07 15:33:40 <eayus> merijn: This is only for an assignment, so fortunately I don't have to really account for potential vulnerabilities in the libraries I'm using.
2020-11-07 15:33:46 × SupaYoshi quits (~supayoshi@213-10-140-13.fixed.kpn.net) (Remote host closed the connection)
2020-11-07 15:33:57 <eayus> However always returning the same random value crossed the line :P
2020-11-07 15:34:31 × mat1 quits (~Thunderbi@dslb-084-058-211-084.084.058.pools.vodafone-ip.de) (Client Quit)
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