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| bio | website | michael.kjorling.se |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 2 years, 1 month |
| seen | May 21 at 13:43 | |
| stats | profile views | 30 |
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May 19 |
comment |
“Friend” stole SD card. Tracing an SD card? It is even less likely if whoever did this emptied the card before doing the switch. |
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May 7 |
comment |
How to encrypt data on the server? @emory Tagging of any kind is obviously useless if the device is not recovered, but if it is, it can be used as one piece of evidence to prove ownership. |
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May 3 |
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How can I stop this DOS attack? It's a minor detail, but in TCP I'm pretty sure RST is shorthand for RESET, not REST. I don't have the rep to make trivial edits, however. |
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May 2 |
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Amount of simple operations that is safely out of reach for all humanity? I very nearly upvoted this for the final sentence alone. |
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Apr 29 |
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What are the practical uses of large asymmetric keys? The number of atoms in the observable universe is estimated at up to about 10^82. Public-key cryptography doesn't work that way, but 2048 bits of key material means about 3x10^616 possible keys. To reach 10^82 possible values, you need just under 272.5 bits of entropy (2^272.5 = 1.07x10^82). |
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Apr 29 |
awarded | Critic |
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Apr 29 |
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CTRL+ALT+DEL Login - Rationale behind it? Wikipedia: Control-Alt-Delete: History |
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Apr 23 |
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Does password-protecting a server's BIOS help in securing sensitive data? @RyanAmos That blue thing in the picture isn't a circuit, it's a jumper. Oh, well, I suppose it is a circuit in the sense of "electrical circuit", but so's the electrical wiring in your home. All it does is to electrically bind two pins together. The firmware checks to see which pins (if any) are electrically connected, and acts accordingly. |
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Apr 12 |
revised |
Using 'sudo vim' to spawn a shell Removed tagline |
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Apr 12 |
suggested | suggested edit on Using 'sudo vim' to spawn a shell |
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Apr 12 |
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How is “hacking” even possible if I “defend” properly? xkcd.com/538 |
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Mar 25 |
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What security purpose do hashes of files serve? The concept of "good data" when the data is malware samples seems... interesting. :) |
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Mar 24 |
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Why does some popular software still use md5? A gradual upgrade path for the data, however, is rather trivial: for example, in the case of passwords, simply re-hash the user's password on the first successful login (because they you have the plain text password). After a couple of versions (depending on the release cycle, but long enough that most people should have gone through this), deprecate support for old-style hashed passwords, then yet later remove support completely and force a password reset on login. |
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Mar 19 |
revised |
How would one crack a weak but unknown encryption protocol? Linkification |
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Mar 19 |
suggested | suggested edit on How would one crack a weak but unknown encryption protocol? |
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Feb 25 |
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Threat model for huge warnings on untrusted SSL certificates and no warnings for plain HTTP connections? +1 for the answer, and a mental +1 for the final sentence. |
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Feb 25 |
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Why do we not trust an SSL certificate that expired recently? What does this answer add over that of Thomas Pornin? |
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Feb 25 |
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Why do we not trust an SSL certificate that expired recently? @LarsH Suppose you're looking at computer-to-computer communications (let's say web services, e-mail transfer, ...) rather than user-to-computer (perhaps but not necessarily web browsing). Where should the warning go, in order to be effective? |
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Feb 25 |
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Why do we not trust an SSL certificate that expired recently? +1 for "If you're going to have a grace period in which you ignore expired certificates, how long does it last?". That's the real reason, I believe, why a grace period would never work: it simply artificially extends the validity period, which means you could just as well use a longer validity period to begin with. Which all software would implement in the same way. |
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Feb 21 |
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Does disabling right click have any impact on security? @Alexios Inspect Element perhaps? Or Bookmark this page. :) |
