secure random number generation not supported by this browser use chrome, FireFox or Internet Explorer 11

[omryr]

im using a library that is using this one and im getting this error when running in IE 11, did anyone encounter it? and if yes what was the solution? i am looking for a few hours now and kinda lost, would appreciate any help. thanks!

[calvinmetcalf]

that's really strange because IE11 supports it, what library are you using that is relying on it and what is the exact version of that library and IE are you using

[omryr]

im using etereumjs-wallet library

[calvinmetcalf]

using it where?

[omryr]

in a client side application

[calvinmetcalf]

in a browser? if so which one?

[omryr]

it happens to me in explorer 11 and also safari on ipads

[calvinmetcalf]

other discussion ethereumjs/ethereumjs-wallet#15

what are you using to bundle the app, does it work in chrome ?

[therightstuff]

if you're looking for crypto library compatible keys, take a look at https://gist.github.com/therightstuff/84ae710c3c301fe7979d7f0aa9c7c147 - i initially used aes-js and md5 on the client, but i now use the browserified crypto library; there was no need to modify the generateSessionKeys function.

[calvinmetcalf]

@therightstuff the interesting thing is just that that error shouldn't be coming up at all here so there is likely something weird going on in like a bundler or something

[omryr]

im using "webpack": "^2.3.3"

[omryr]

and yes it works in chrome and mosly works in safari, IE it doesnt work at all

[calvinmetcalf]

what version of IE, exactly ?

On Mon, May 8, 2017 at 11:24 AM omryr notifications@github.com wrote:

and yes it works in chrome and mosly works in safari, IE it doesnt work at all

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[omryr]

im trying IE 11 atm

[calvinmetcalf]

ok and if it doesn't work then the full version number would be helpful

On Mon, May 8, 2017 at 11:29 AM omryr notifications@github.com wrote:

im trying IE 11 atm

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[omryr]

IE 11.0.15063.0 is the version im running

[dcousens]

Verdict?

[calvinmetcalf]

I have no clue, I'm not able to reproduce

On Wed, May 24, 2017 at 4:17 AM Daniel Cousens notifications@github.com wrote:

Verdict?

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[bokub]

Same problem with both IE 11.786.15063.0

I'm using browserify version 14.5.0 + babel 6.26.0.

Here is the generated code:

    var Buffer = require('safe-buffer').Buffer;
    var crypto = global.crypto || global.msCrypto;
    if (crypto && crypto.getRandomValues) {
        module.exports = randomBytes;
    } else {
        module.exports = oldBrowser;
    }

Both global.crypto and global.msCrypto are undefined.

[calvinmetcalf]

is have you configured babel or webpack not to include global ?

[bokub]

EDIT: it was not webpack version 14.5.0 but browserify version 14.5.0.

And no, I don't know how to do this, but I'll look

By the way, I forgot to mention that my code is in a web worker, and console.log(global) logs [object WorkerGlobalScope]

[calvinmetcalf]

are window.crypto and window.msCrypto also undefined and does global === window ?

[bokub]

window is undefined because my code is in a web worker. However, global is equal to the WorkerGlobalScope

[calvinmetcalf]

oh yeah getRandomValues isn't available in a web worker

[bokub]

Works with chrome and recent Firefox versions though..

Thanks for your help :+1:

[MaxMillington]

I'm getting this error in IE10. Does randombytes not support IE10?

[calvinmetcalf]

that is correct

[AilsonEsi]

hi guys, some one can help me, so im trying to create a project i had same error, im using linux mint, what can i do to solve this?

[calvinmetcalf]

@AilsonEsi what browser and version are you using, and are you trying to use it in a web worker?

[xellDart]

some here

[calvinmetcalf]

folks, are you in a web worker? if so browsers don't support it, maybe we need a more explicit error when you try to use this in a web worker?