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What is the difference between DSA and RSA?
...,R), (d,p,q)}
to sign a message M, compute:
S = M power d (mod R)
to verify a signature, compute:
M = S power e(mod R) = M power e.d(mod R) = M(mod R)
RSA can be used both for encryption and digital signatures,
simply by reversing the order in which the exponents are used:
the secret exponen...
What is the equivalent of Java's final in C#?
...ride void MyFinalMethod() {...}
}
As Joachim Sauer points out, a notable difference between the two languages here is that Java by default marks all non-static methods as virtual, whereas C# marks them as sealed. Hence, you only need to use the sealed keyword in C# if you want to stop further overr...
Smart pointers: who owns the object? [closed]
...r, it knows that the pointed object won't be destroyed during the child's lifetime, and has no ownership to it. Both the contained and container objects agree to a clear set of rules. If you use a naked pointer, the rules can be documented, but won't be enforced by the compiler and the code.
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How do I create 7-Zip archives with .NET?
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If you can guarantee the 7-zip app will be installed (and in the path) on all target machines, you can offload by calling the command line app 7z. Not the most elegant solution but it is the least work.
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Get DateTime.Now with milliseconds precision
...lly speaking, you can't. Usually the system clock (which is where DateTime.Now gets its data from) has a resolution of around 10-15 ms. See Eric Lippert's blog post about precision and accuracy for more details.
If you need more accurate timing than this, you may want to look into using an NTP clie...
Parallelize Bash script with maximum number of processes
...s
Run up to max-procs processes at a time; the default is 1.
If max-procs is 0, xargs will run as many processes as possible at a
time. Use the -n option with -P; otherwise chances are that only one
exec will be done.
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How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
...Mrozek Well "command line" refers generically to any command line, not specifically CMD/COMMAND, and PS definitely is a command line, as is bash, sh, rsh on *nix. But just to go one further, since you can run powershell from the command line, it does answer the question even if you want to believe ...
Making git auto-commit
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On Linux you could use inotifywait to automatically execute a command every time a file's content is changed.
Edit: the following command commits file.txt as soon as it is saved:
inotifywait -q -m -e CLOSE_WRITE --format="git commit -m 'autocommit on...
Error pushing to GitHub - insufficient permission for adding an object to repository database
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Note: if you use the wildcard "", hidden files and folders (such as .git!) might not be affected! So if the above doesn't work for you, run the commands for ./.git as well
– Ben Rogmans
Sep 5 ...
Gradle, Android and the ANDROID_HOME SDK location
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set was wrong, I use export. But in this way, if you export this Variable, you don't need the local.properties file in your Projekt-Folder. To keep this setting on each reboot, add the export-commad to your ~/.bashrc
– suther
Oct ...