I am implementing Microsoft OEM Registration and they wanted a server that will receive encrypted data that needs to be decrypted using the private key(server have the key) and session key that would be sent from the customer system. I need to write this code on my server but I don’t have a windows server. ..
Category : aes
Anyone knows about AES(Adv. Encryption Standards) methods ? I want the decrypt in RFID input stream with the use of Key and vector IV. I’m using ESP8266MOD NodeMCU (WiFi) and RFID-RC522 (13.56 MHz ISM Band). IDE- Arduino 1.8.13 -Thank You… Source: Windows Que..
I’m implementing encrypt/decrypt code with c++/c# I referred to this post and referred to answers.z` But c++/c# encrypted code was not matched. Here are my codes. C++ // base64 encode part static const std::string base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz" "0123456789+/"; static inline bool is_base64(BYTE c) { return (isalnum(c) || (c == ‘+’) || (c == ‘/’)); ..
I have this code that I found on SO and it works. My problem is that encryption and decryption are in the same file. Naturally, I want to separate them into two functions. The problem is the decoder needs the original input length. Isn’t it a security vulnerability? How can I decrpyt without knowing the ..
I am a newbie to Crypto++. I have read the documentation on AES encryption on the Crypto++ website and I want to perform AES file encryption using it. The sample code that they have is shown below: #include "cryptlib.h" #include "rijndael.h" #include "modes.h" #include "files.h" #include "osrng.h" #include "hex.h" #include <iostream> #include <string> int main(int ..
I am trying to implement AES in C++. There is no problem in encryption part, decryption is also successful, bu there is some additional weird characters at the end of the decrypted data "aes islemi". It looks like: aes islemi↕U but it should be aes islemi How can I solve this problem? Thanks in advance ..
I am currently working on a project where an Arduino and Raspberry PI will communicate with each other. The Arduino will send sensor data to the Raspberry PI. This data needs to be encrypted with AES encryption. The following library will be used send data encrypted from my Arduino to my Raspberry PI: https://github.com/suculent/thinx-aes-lib In ..
We all know that AES uses Key, IV and salt. But what if we add special ASCII characters like Alternate 255 (" ") or Alternatively 163 ("£") in the Key or IV or salt. Does it add extra security? Source: Windows Que..
I’m trying to build this project: https://github.com/utelle/SQLite3MultipleCiphers Specifically the amalgamation files found at: https://github.com/utelle/SQLite3MultipleCiphers/releases/tag/v1.2.5 I’m getting this error from the _mm_aesimc_si128 function: /usr/lib/gcc/x86_64-linux-gnu/9/include/wmmintrin. h:77: error: inlining failed in call to always_inline ‘_mm_aesimc_si128’: target specific option mismatch In file included from ../sqlite3mc/sqlite3mc_amalgamation.c:250494: ../sqlite3mc/sqlite3mc_amalgamation.c: In function ‘aesGenKeyDecrypt’: /usr/lib/gcc/x86_64-linux-gnu/9/include/wmmintrin.h:77:1: error: inlining failed in call to always_inline ‘_mm_aesimc_si128’: target ..
#include <iostream> #include <string.h> using namespace std; void InverseMixColumns(unsigned char* state) { unsigned char tmp[16]; tmp[0] = (unsigned char)mul14[state[0]] ^ mul11[state[1]] ^ mul13[state[2]] ^ mul9[state[3]]; tmp[1] = (unsigned char)mul9[state[0]] ^ mul14[state[1]] ^ mul11[state[2]] ^ mul13[state[3]]; tmp[2] = (unsigned char)mul13[state[0]] ^ mul9[state[1]] ^ mul14[state[2]] ^ mul11[state[3]]; tmp[3] = (unsigned char)mul11[state[0]] ^ mul13[state[1]] ^ mul9[state[2]] ^ mul14[state[3]]; ..
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