大约有 1,040 项符合查询结果（耗时：0.0179秒） [XML]
How does this giant regex work?
...urther.
This is what the backdoor looks like when it is accessed:
the hex part of the code:
\x65\x76\x61\x6C\x28\x67\x7A\x69\x6E\x66\x6C\x61\x74\x65\x28\x62\x61\x73\x65\x36\x34\x5F\x64\x65\x63\x6F\x64\x65\x28
is acutally:
eval(gzinflate(base64_decode(
This is the code will print out the sou...
How to color System.out.println output? [duplicate]
...or ANSI escape sequences, the sequence always begins with ESC (ASCII: 27 / hex: 0x1B).
For a list of what you can do, refer to the ANSI Escape Sequence List on Wikipedia
In Programming Languages
Some programming langauges (like Java) will not interpret \e or \x1b as the ESC character. However, we...
How to fix “Headers already sent” error in PHP
...e problem),
Another option to inspect the BOMs presence is resorting to an hexeditor.
On *nix systems hexdump is usually available,
if not a graphical variant which simplifies auditing these and other issues:
An easy fix is to set the text editor to save files as "UTF-8 (no BOM)"
or similar such ...
Hash collision in git
...
Picking atoms on 10 Moons
An SHA-1 hash is a 40 hex character string... that's 4 bits per character times 40... 160 bits. Now we know 10 bits is approximately 1000 (1024 to be exact) meaning that there are 1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 d...
Secure hash and salt for PHP passwords
...pectively).
Don't mix bcrypt and with the raw output of hash(), either use hex output or base64_encode it. (This applies to any input that may have a rogue \0 in it, which can seriously weaken security.)
Dos
Use scrypt when you can; bcrypt if you cannot.
Use PBKDF2 if you cannot use either bcryp...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
... empty tree value is formally defined in cache.h.
#define EMPTY_TREE_SHA1_HEX \
"4b825dc642cb6eb9a060e54bf8d69288fbee4904"
Since Git 2.16 (Q1 2018), it is used in a structure which is no longer tied to (only) SHA1, as seen in commit eb0ccfd:
Switch empty tree and blob lookups to use hash...
Is either GET or POST more secure than the other?
...?o??`o"FyVOByY_ Supo? /'i?Oi"4
tr'9/o_7too7q?c2Pv
(note: I converted the HEX to ASCII, some of it should obviously not be displayable)
The entire HTTP conversation is encrypted, the only visible portion of communication is on the TCP/IP layer (meaning the IP address and connection port informatio...
How to develop a soft keyboard for Android? [closed]
...true; // Consume touch event
}
});
// Disable spell check (hex strings look like words to Android)
edittext.setInputType(edittext.getInputType()
| InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
}
}
// NOTE How can we change the background color of some keys (like the
// ...
'printf' vs. 'cout' in C++
... noise).
printf("0x%04x\n", 0x424);
std::cout << "0x" << std::hex << std::setfill('0') << std::setw(4) << 0x424 << std::endl;
Translation
This is where the real advantage of printf lies. The printf format string is well... a string. That makes it really easy t...
How to convert a number to string and vice versa in C++
...1.2 + 3 = 4.2"
You can use stream manipulators, such as std::endl, std::hex and functions std::setw(), std::setprecision() etc. with string streams in exactly the same manner as with cout
Do not confuse std::ostringstream with std::ostrstream. The latter is deprecated
Use boost lexical cast. If ...