sign interprets message as hex even when it's not hex

[clark800]

The toArray function strips non-hex characters without warning. If a user tries to pass a UTF8 string as the message, they may assume that it is signing the string message and not realize that the message is being interpreted as hex with non-hex characters stripped. It would be more defensive to throw an exception here:

https://github.com/indutny/elliptic/blob/master/lib/elliptic/utils.js#L33
https://github.com/indutny/elliptic/blob/master/lib/elliptic/utils.js#L164

[indutny]

I think this makes sense. Could you be interested in submitting the fix for this?

[fanatid]

Should note, that this problem not only in elliptic.. hash.js and maybe other libraries.

[dcousens]

Again, one of the scariest parts of the elliptic suite is the non-strict typing [for me].
I trust the math, but not JS.

[dcousens]

Perhaps close in favour of #105, otherwise, related

[indutny]

Agree.