network profile
| bio | website | nowhere.com |
|---|---|---|
| location | United States | |
| age | 93 | |
| visits | member for | 7 months |
| seen | Nov 8 '12 at 5:17 | |
| stats | profile views | 9 |
An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says "You're all idiots", and pours two beers.
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Oct 22 |
comment |
How much added security do I really get with a longer key size? I like the other answers and upvoted them, but this is the most helpful one. |
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Oct 22 |
accepted | How much added security do I really get with a longer key size? |
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Oct 19 |
awarded | Critic |
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Oct 19 |
comment |
My credit union is reducing its maximum password length to 10 characters @gerrit So you don't use services like PayPal? |
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Oct 19 |
awarded | Commentator |
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Oct 19 |
comment |
My credit union is reducing its maximum password length to 10 characters One thing you can do is contact your credit union saying you've lost your password and need it back. If they send you back your actual password, this should set some alarm bells. |
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Oct 19 |
comment |
My credit union is reducing its maximum password length to 10 characters What concerns me is, why would you want do make such a change? If the password is properly stored, 20 or 10 characters should not make a difference. The only practical reason I see for someone to do that is because they want to reduce the size of their password field in the database, which could indicate they are encrypted, or worse. Even then this seems like a stupid thing to do since storage is so cheap nowadays. Honestly, I have no idea why anyone would bring this up. |
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Oct 19 |
comment |
How much added security do I really get with a longer key size? I see. When I asked the question, I had in mind that the KDF could generate 256-bit keys and truncate it to size. |
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Oct 19 |
comment |
How much added security do I really get with a longer key size? It looks like sometimes the longer key lengths could fall first: schneier.com/blog/archives/2009/07/another_new_aes.html |
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Oct 19 |
comment |
How much added security do I really get with a longer key size? How inevitable? DES is older than me and as far as I know there are no viable attacks on it. |
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Oct 19 |
comment |
How much added security do I really get with a longer key size? Could you explain your last sentence? |
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Oct 19 |
revised |
How much added security do I really get with a longer key size? added emphasis |
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Oct 19 |
comment |
How much added security do I really get with a longer key size? I think you've missed the point of my question. I've edited it and added some emphasis on its key points. |
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Oct 19 |
asked | How much added security do I really get with a longer key size? |
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Oct 17 |
awarded | Scholar |
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Oct 17 |
accepted | Password checking in the context of symmetric encryption |
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Oct 17 |
comment |
Password checking in the context of symmetric encryption It makes sense now. 7-zip compress files together to take advantage of possible similarities between files (something easily seen if you create multiple copies of a file and compress them all). I must have corrupted a part of the dictionary which was used by more than one file. |
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Oct 17 |
comment |
Password checking in the context of symmetric encryption I see. I wonder why 7-zip reports corrupt data on all subsequent files if I corrupt the ciphertext corresponding to a single file (all of them being much larger than 16 bytes). |
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Oct 17 |
awarded | Student |
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Oct 17 |
comment |
Reversible password storage obfuscation method for third-party login credentials +1 But doesn't this imply that if a user loses his credentials to the app, all of the saved passwords for his account are now useless? |
