CFB | Canadian Furious Beaver is a tool for monitoring IRP handler
kandi X-RAY | CFB Summary
kandi X-RAY | CFB Summary
Canadian Furious Beaver is a tool for monitoring IRP handler in Windows drivers, and facilitating the process of analyzing, replaying and fuzzing Windows drivers for vulnerabilities
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QUESTION
i have some code here for a an application chat screen. This specific chat screen is used to chat with a bot. The bot is supposed to send a message after each message by the user. The list of messages to be sent by the bot is stored in messageStrings. I'm using a listview.builder to populate the UI with new messages added in the List messages.
I'm using setstate to add new messages, but the UI Isn't getting updated with the new messages. This is my code:
...ANSWER
Answered 2021-May-23 at 17:02Instead of directly using List.add
try changing the reference of your messages
to a completely new List
as well, like this,
QUESTION
ANSWER
Answered 2021-May-12 at 17:41UPDATE: (Comments below for details) At the end, text was hidden because the ViewPager was too small.
The AppCompatTextView is a retro-compatible text view for old Support Library support. Which is your minimum supported SDK version? You don't need this if you are using AndroidX.
However, it comes with this dependecy you have to put in your module build.gradle file:
QUESTION
I wanna develop NavigationDrawer with Android-Studio.
So, When I add NavigationView(activity_main.xml), it gets on Error.
When I add only Toolbar & NavigationView Code in xml, it has no problem,
but, look at the activity_main.xml. It has ViewPager, DotsIndicator, BottomNavigationView..
Logcat:
...ANSWER
Answered 2021-May-06 at 18:13There is some error with your dimens.xml
for the @layout/nav_header_main
file, you can check in the file to resolve the issue.
QUESTION
I have this python snippet which always worked for me:
...ANSWER
Answered 2021-Mar-13 at 09:36First of all, for the OpenSSL command line, the key (-K
option) and IV (-iv
option) must be supplied with hexadecimal values. If we supply your values they are short they are padded with 0
s with a warning;
QUESTION
I would like to decrypt Zigbee paquets from a Xiaomi Aqara switch. Here is the raw encrypted frame I sniffed on a network:
Raw encrypted frame
...ANSWER
Answered 2021-Feb-19 at 08:39The algorithm is AES-128-CCM*, detailed in the section 4.3.1.1 and annex A of the ZigBee specification.
Detailed answer with the frame in the question: https://lucidar.me/en/zigbee/zigbee-frame-encryption-with-aes-128-ccm/
QUESTION
new to Python so this might be a basic question but I have the following table:
https://www.sports-reference.com/cfb/years/1991-passing.html
And I'd like to scrape it with BeautifulSoup
to have an output like this:
Problem 1: If you look at the URL above, every 21st row is a header row that should be ignored
Problem 2: "Rushing" seems to be another th
so my code and output below currently are like this:
ANSWER
Answered 2021-Feb-16 at 22:59You can load a html table directly into pandas using read_html
, no need to use BeautifulSoup. You can then process the dataframe by removing the top header row and the mid-table header rows:
QUESTION
I have a complex file read issue....I have a need to read a DOCX file with an embedded file system, extract a ZIP file, and peruse the ZIP file's internal directory to extract the actual files I need. I already have written this code in Java successfully, so I know it can be accomplished. But, I want to do this in Rust.
Currently, I can read the DOCX file, iterate through the OLE10 objects to locate the file I need. The OLE10 file (which is actually the ZIP) has a weird extraction command header of 256 bytes, which I seek past. If I read the rest of the file stream and write it to the filesystem it will write out as a ZIP. I can use 7-zip to open the file and see all the contents.
The problem is, no matter what Rust ZIP crate I use (zip, zip_extract, zip_extensions, rc-zip) I just cannot extract the ZIP contents. I continuously run into an issue "cannot find end of central directory". I have iterated through the file, and the EOCD tag of "50 4B 05 06" is actually there. If I end the stream at the EOCD, I got an "early end of file exit" error. The file is >9M, and I am wondering if this might be the issue.
Anyone have any ideas how to use Rust to extract the ZIP directory and attach it to a buffer or the filesystem?
Here's the code that just won't extract:
...ANSWER
Answered 2020-Nov-20 at 12:31I can't speak for the other crates, but zip
will automatically be seeking to the end of whatever io::Read
you give it (and then searching backwards). Without seeing your code, I'd guess that you're passing a reader that extends past the end of the contents of the ZIP file, so zip
fails to recognise the contents.
Feel free to make an issue on our issue tracker if there's a specific feature you need. I'm happy to extend the crate's API if need be ^^
Edit: I looked into the other crates you've used and they'd share this issue.
rc-zip
(The only one that doesn't usezip
under the hood) has aReadZip
trait that starts searching at the end of whatever buffer you give it. You'd need to callArchiveReader::new
with the size you expect the internal zip file to be
QUESTION
I have a serial to TCP device which is receiving data via rs232, encrypting that data, then forwarding to a TCP server. The documentation for the device's encryption methodology is borderline nonexistent, only that its 128, 192, or 256 bit AES encryption(configurable). Judging from some other context clues in the documentation, I'm seeing that it is likely utilizing either CBC or CFB mode of operation(though that could be wrong as well). And no, I have no insight into the nature of the IV in the documentation. Perhaps its prepended to the encrypted data?
For development purposes, I have the same RS232 data going to two different devices: one is configured to encrypt the data, the other is configured to send in plaintext. Below is the same data in both plaintext and encrypted format.
Plaintext:
...ANSWER
Answered 2020-Nov-20 at 19:43CFB is a stream cipher mode and does not require padding. There are different CFB variants, e.g. CFB1, CFB8, CFB128. CFB128 is also often referred to as CFB.
The numerical value describes the number of plaintext bits encrypted per encryption step.
The posted ciphertext can be successfully decrypted with CFB128.
In PyCryptodome the numerical value is specified with the parameter segment_size
, here
In addition, the encrypted data contains the 16 bytes IV placed in front (as you already assumed), so that the IV and the actual ciphertext must be separated first.
The following code decrypts the ciphertext:
QUESTION
I'm new to Crypto and am trying to make a block cipher encryption program. And I've stumbled across a doubt while writing the CFB part.
Supposing we have a 64-bit block cipher with. And we use 7-bit CFB along with it. Then, for each block, the block will be run nine times wherein nine 7-bit left shifts to the block (starting with IV) and subsequent additions take place.
This means after 9 rounds of CFB, 63 bits of the 64-bit block are processed. At the end we have one bit remaining. How do I process this bit? Do I take seven bits again or just encrypt the one remaining bit?
I have this same question for any case where the s is not a factor of the block size.
...ANSWER
Answered 2020-Nov-07 at 06:12Looking back, this question seems silly.
I've now understood that the plaintext, if it's length isn't a multiple of the block size, must be padded to be so.
QUESTION
I have a legacy database with content that was encrypted with mcrypt using DES (yes, I know, it was a long time ago) The encryption method is like this:
...ANSWER
Answered 2020-Aug-04 at 10:49While mcrypt is not part of PHP anymore (for good reasons), it still exists as module you can install for PHP 7.4
https://pecl.php.net/package/mcrypt
Install it, make sure to re-encrypt all data, once all old data is updated, change your code to not use it anymore and remove the extension.
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No vulnerabilities reported
Install CFB
the registry for a permanent effect (reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Debug Print Filter" /v DEFAULT /t REG_DWORD /d 0xf)
directly from WinDbg for only the current session (ed nt!Kd_Default_Mask 0xf)
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