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Encryptr – Free, open-source password manager and e-wallet

encryptr.org

1–10 of 78 posts

Re: Encryptr – Free, open-source password manager and e-wallet

#3
I'm cautiously optimistic about this, but won't be using it to manage passwords for anything important -- yet.

On one hand they claim to be in league with SpiderOak (how, I'm not sure), which surfaced after the Snowden leaks as a zero-knowledge encrypted alternative to Dropbox/Google Drive.

On the other hand, it's a cloud-based solution which to me is still a cause for caution, and I'd feel more reassured if someone (who knows JavaScript and security better than I do) conducted an audit of this.

Hoping for the best for Encryptr, but I'll have to keep it on the sidelines until it's more battle-tested.

Re: Encryptr – Free, open-source password manager and e-wallet

#4
https://github.com/devgeeks/Encryptr/blob/64223f0cb4adba80c8...

I'm a bit concerned that their random number generator might produce biased output. This is usually a red flag that there are other issues in the code that haven't been examined by a crypto person.

Just a word of caution from a casual glance. For all I know the rest of the code is fine. For all I know, the rest of the code is clunky swiss cheese.

Further reading on biased RNGs, with a visual: https://stackoverflow.com/a/31374501/2224584

Re: Encryptr – Free, open-source password manager and e-wallet

#6

https://github.com/devgeeks/Encryptr/blob/64223f0cb4adba80c8... I'm a bit concerned that their random number generator might produce biased output. This is usually a red flag that there are other issues in the code that haven't been examined by a crypto person. Just a word of caution from a casual glance. For all I know the rest of the code is fine. For all I know, the rest of the code is clunky swiss cheese. Further…

What's wrong with window.crypto.getRandomValues?

Re: Encryptr – Free, open-source password manager and e-wallet

#8
post #6

https://github.com/devgeeks/Encryptr/blob/64223f0cb4adba80c8... I'm a bit concerned that their random number generator might produce biased output. This is usually a red flag that there are other issues in the code that haven't been examined by a crypto person. Just a word of caution from a casual glance. For all I know the rest of the code is fine. For all I know, the rest of the code is clunky swiss cheese. Further…

What's wrong with window.crypto.getRandomValues?

Nothing in principle; it's the % operator that can biased the output.

Also, outside the scope of Cordova apps, Node.js uses OpenSSL rather than /dev/urandom for their crypto.getRandomBytes() implementation, so I don't really trust it in that context. ;)

Re: Encryptr – Free, open-source password manager and e-wallet

#9

I'm cautiously optimistic about this, but won't be using it to manage passwords for anything important -- yet. On one hand they claim to be in league with SpiderOak (how, I'm not sure), which surfaced after the Snowden leaks as a zero-knowledge encrypted alternative to Dropbox/Google Drive. On the other hand, it's a cloud-based solution which to me is still a cause for caution, and I'd feel more reassured if someone…

looks like at least one of the devs works on the SpiderOak team according to github membership

Re: Encryptr – Free, open-source password manager and e-wallet

#10
post #6

Earlier quoted context omitted.

What's wrong with window.crypto.getRandomValues?

Nothing in principle; it's the % operator that can biased the output. Also, outside the scope of Cordova apps, Node.js uses OpenSSL rather than /dev/urandom for their crypto.getRandomBytes() implementation, so I don't really trust it in that context. ;)

% shouldn't decrease the entropy, modulo of random is still random.
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