I could not reproduce the error directly with Chrome 16.0.912.75. It did churn for a minute or two on the larger file (and prompted me to kill the tab). When I would run a test locally it looks like it's spending most of the time in openpgp_cfb_encrypt.
However, since this was running so slow it led me to analyze this method and I realized that what seemed to be the slowest was actually string concatenation. I switched the way this string grew to be more optimized, and it seems to run quite a bit faster on my machine now. Please try out the new code and let me know if you see improvements. I haven't had a chance to apply this to all encrypting situations or any decrypting situations so they may or may not suffer from similar issues. I didn't have a chance to look at those methods in depth. Just FYI: OpenPGP works by using the public/private key to generate a session key, and then uses that session key to encrypt the rest of the data in one of various symmetric formats, symmetric being easier to encrypt/decrypt. (Generally keys are RSA and the actual message encryption is AES). In this case, openpgp js is using AES 256 and spending quite a bit of time churning in there. Hope this helps! Sean On Wed, Feb 1, 2012 at 10:44 AM, Fabio Pietrosanti (naif) < [email protected]> wrote: > Made some test on Mac Os X, 34MB file: > > Firefox 9.0.1: > I got continuous Unresponsive Script Warning (there's a way to prevent > this?) > Then i clicked "don't ask me again". > Then firefox staying running at 100% of cpu, after 20 minutes i had to > kill the process. > > Safari 5.1.2: > nothing happen when i do drag/drop > > -naif > > On 2/1/12 3:58 PM, Alex (via OpenPGP.js) wrote: > > You've to move a file on the box but I was not able to reproduce the bug > with Chrome 16.0.912.77... > _______________________________________________ > > http://openpgpjs.org >
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