I use Vimperator, but one thing I struggle with is being able to efficiently select and navigate a link that has (or is) just a number. This happens quite a lot in various generated web pages use where the links are numerical or are dates.
Using just f to enter hints mode doesn't work, as typing a number will naturally send you to that hint.
I’m not very familiar with Vimperator, but in its fork and further development – Pentadactyl, you can use backslash to make following digits be treated as link inner text, not number. I. e. use f\21 to narrow the search to the links with text starting from / contains¹ 21.
¹ Depending on your preferences, 'hintmatching' option to be precise.
Related
I am using a Keygen application (.exe). There are two input fields in it's GUI:
p1 - at least 1 digit, 10 digits max - ^[0-9]{1,10}$
p2 - 12 chars max - uppercase letters/digits/underscores - ^[A-Z0-9_]{0,12}$
Pressing generate button produce a key x.
x - 20 digits exactly - ^[0-9]{20}$
For each pair (p1,p2), there is only one x (in other words: f(p1,p2) = x is a function)
I am interested in it's encryption algorithm.
Is there any way of reverse engineering the algorithm?
I thought of two ways:
decompiling. I used snowman, but the output is too polluted. The decompiled code probably contains non-relevant parts, such as the GUI.
analyzing of input and output. I wonder if there any option to determine the used encryption algorithm by analyzing a set of f(p1,p2) = x results.
As you mentioned, using snowman or some other decompiling tools is probably the way to go.
I doubt you would be able to determine the algorithm just by looking at the input output combinations, since it is possible to write any kind of arbitrary algorithm, that can behave in any way.
Perhaps you could just ask the author what algorithm they're using ?
Unless it's something really simple, I'd rule out your option 2 of trying to figure it out by looking at input and output pairs.
For decompiling / reverse engineering a static binary, you should first determine whether it's a .NET application or something else. If it's written in .NET you can try this for decompilation:
https://www.jetbrains.com/decompiler/
It's really easy to use, unless the binary has been obfuscated.
If the application is not a .NET application, you can try Ghidra and/or Cutter which both has pretty impressive decompilers built in:
https://ghidra-sre.org/
https://cutter.re/
If static code analysis is not enough, you can add a debugger to it. Ghidra and x64dbg work really well together, and can be synced via a plugin installed in both.
If you're new to this, I can recommend both that you look into basic assembler for the x86 platform so you have a general idea of how the CPU works. Another way to get started is "crackme" style challenges from CTF competitions. Often there great write-ups with the solution, so you have both the question and answer available.
Good luck!
Type in p1 and p2. Scan the process for that byte string. Then put a hardware breakpoint for memory access on it. Generate the key, it will hit that hardware breakpoint. Then you have the address which accesses it and start reversing from there in Ghidra(Don't forget to use BASE + OFFSET) since ghidra's output won't have the same base as the running application. The relevant code HAS to access the inputs. So you know where the algorithm is. Since it either directly accesses it, or somewhere within that call chain is accessed relatively fast. Nobody can know without actually seeing the executable.
it bothers me:
why can't i "soft return" in intellij (or any IDE actually)?
is there a way i don't know of to "X + return key"?
situation: i want to copy&paste long paragraphs into a translation.json.
Afterwards, i want to format them with html tags.
So why can't i have
"translation": {
Hi!/
this is/
the text./
maybe there is a/
LINK too?/
/
Second Paragraph/
/
This is the second paragraph./
}
with /being soft wrap markers
instead of
"translation": {
Hi! this is the text. maybe there is a LINK too? Second Paragraph This is the /
second paragraph.
}
(it makes inserting the html tags a PITA)
why can't i "soft return" in intellij (or any IDE actually)?
Most likely because it is not a highly desired feature. Secondly, from a practical standpoint, the implementation would be cumbersome because most file formats an IDE uses are ultimately plain text. As such the file does not have a concept of a soft return. For an IDE to support arbitrary soft returns, it would need to maintain a data store containing the metadata of where in each and every file you've ever edited you want soft returns.
Or alternatively, the soft returns would need to be stored in the file. But the only way to do that and not "effect" the actual code in the file is via comments. Such as how an IDE uses comments to suppress warnings, create an arbitrary folded block, or turn off auto formatting. (And of course, with your example, JSON does not have comments, further complicating things.) Using comments for soft returns would, I think, result in a lot of clutter in the file. For example, for HTML, even using a one character comment of a paragraph symbol "¶" results in a lot of clutter:
"translation": {
Hi!<!--¶-->
this is<!--¶-->
the text.<!--¶-->
maybe there is a<!--¶-->
LINK too?<!--¶-->
<!--¶-->
Second Paragraph<!--¶-->
<!--¶-->
This is the second paragraph.<!--¶-->
}
You could always request a new feature to add support for something like this to IDEA, but I'm fairly sure it would unlikely gain any traction (based on 13+ years of IDEA usage and very active community membership).
I agree with #Peter's comment that more detail about the workflow you have might help. Ultimately, the Paste as plain text action he mentions is likely the solution. Or you can turn off reformatting on paste in Settings > Editor > General > Smart Keys > "Reformat on paste". See the following help page for more information: https://www.jetbrains.com/help/idea/2016.2/smart-keys.html
I want to improve my work productivity with Rubymine (Jetbrains) by adding autocomplete to most common words:
like if I type b and enter , it will auto populate Byebug, for Example.
Not sure I've got what you mean by 'most common words'... there is a 'hippie completion' feature (Alt+slash) that allows completing words already entered in file.
Yopu can also use Live Templates to expand certain abbreviations into words
Is it possible to customize perforce change number. I heared that we can do it. I checked on line but didnt find any solution.
For example trying to get change number as power of two, or multiple of 10 etc. Is this possible. Right now i get a complete random number.
Thanks
The project I am currently working on requires a lot of hexadecimal numbers to be entered into the code.
I once saw a pic of an old keyboard with a hexadecimal numpad (has A-F letters on it also) replacing the normal numpad. Anyone know where I can get one of these?
IPv6 Buddy -keypad should work well for hexadecimal input.
http://www.ipv6buddy.com/
If you can get your hands on one of the retired space shuttles, they have one!
I have an old Heathkit learning toy with a hex numpad because the only way to program it was to assemble code by hand (it came with a 6800 manual and some notepads) into the online monitor. This was actually fun!
Mine is missing the 'D' button however.
Great idea with the programmable keypad. I think i am going to pick up one of these: DX1 input system. Works for any reconfiguring I might want to do.
Is this the one you're talking about?
funky http://www.cpmuseum.com/Exhibits/Apple%20Lane/7603/7603-0005/images/000%20Front%20View.jpg
While this has a lot of "gee whiz" appeal, I have to say:
You have two hands. Use them. A-F are all reachable with the left hand on a standard keyboard while your right hand is on the num-pad. Instead of putting muscle-memory time into some arcane Hex-pad, you'll be learning to touch-type with your left hand, which has application outside your current project.
Better yet, come up with a smarter way of getting the hex codes into your code. Write a script that extracts them from your data-source and into your code as symbolic variables... or whatever.
EDIT
Ok, I'll give you the benefit of the doubt. Lets assume you're working on a hardware project and need to provide a specialized interface for your user. Maybe a programmable keypad would fit the bill?
Not sure of the specifics right now, but I'm pretty sure you can easily write a keyboard remapper. You could remap the QWASDF keys to ABCDEF in order to type them more quickly. That way you could use 2 hands to type. Or if you are in control of the program they are being typed into, you could just translate the keys in code on the fly. You also might want to try out the Microsoft Keyboard Layout Creator