Cryptography Basics – Public Key Cryptography ECEN 4133 FEB 4, 2021 Shared key limitations Suppose Alice publishes data to lots of people, and they all…
#include #include #include int main(void) { write(STDOUT_FILENO, “Hello “, 6); write(1, “Hello “, 6); fprintf(stdout, “Hello “); printf(“Hello ”); write(STDERR_FILENO, “World “, 6); write(2, “World…
/* * Example of using the getcontext()/swapcontext() API. This API, provided by * ucontext.h, is not part of POSIX anymore because of portability issues. *…
#include #include #include int main(void) { int fd; char c; fd = open(“file_101.c”, O_RDONLY); read(fd, &c, 1); printf(“%c ”, c); read(fd, &c, 1); printf(“%c ”,…
ECS 150: Project #1 – Simple Shell Prof. Joël Porquet-Lupine UC Davis, Winter Quarter 2021 Changelog General information Objectives of the project Program description Introduction Constraints…
#include int main(void) { printf(“Hello! ”); /* Try deactivating * hardware interrupts */ asm (“cli” ::: “memory”); while (1) printf(“I win? ”); return 0; }
Public-Key Crypto Review: Integrity Problem: Sending a message over an untrusted channel without being changed Provably-secure solution: Random function Practical solution: m, v := fk(m)…
#include #include #include int main(void) { int fd1, fd2; fd1 = open(“file_101.c”, O_RDONLY); fd2 = open(“file_201.c”, O_RDWR); printf(“fd1 = %d ”, fd1); printf(“fd2 = %d…
#include #include #include int main(int argc, char *argv[]) { char cwd[PATH_MAX]; DIR *dirp; struct dirent *dp; getcwd(cwd, sizeof(cwd)); printf(“Change CWD from ‘%s’ to ‘%s’ ”,…
Part 1 (Practice) Description: SE433/333 Software Testing and Quality Assurance Individual Assignment #2 Fault prediction is necessary in software development life cycle in order to…