Cryptography Basics – (Pseudo)Randomness ECEN 4133 Jan 21, 2021 Review •Integrity of messages between Alice and Bob •Alice appends bits that only Alice (and Bob)…
#include #include int main(void) { char *cmd = “/bin/echo”; char *args[] = { cmd, “ECS150”, NULL}; int ret; printf(“Hi! ”); ret = execv(cmd, args); printf(“Execv…
AAers/vagrant/work/received-2019/to-be-uploaded/2021-
ECS 150 – Project 2 Prof. Joël Porquet-Lupine UC Davis – 2020/2021 Copyright © 2017-2021 Joël Porquet-Lupine – CC BY-NC-SA 4.0 International License / 1…
#include #include int main(void) { int fd[2]; char send[7] = “Hello!”; char recv[7]; pipe(fd); printf(“fd[0] = %d ”, fd[0]); printf(“fd[1] = %d ”, fd[1]); write(fd[1],…
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…