/* * C program is to illustrate how user authentication is done. * Program asks for the user name and password and displays * the password as '*' character */ #include void main() { char password[10], username[10], ch; int i; printf("Enter User name: "); gets(username); printf("Enter the password < any 8 characters>: "); for (i = 0; i < 8; i++) { ch = getchar(); password[i] = ch; ch = '*' ; printf("%c", ch); } password[i] = '\0'; /* Original password can be printed, if needed */ printf("\n Your password is :"); for (i = 0; i < 8; i++) { printf("%c", password[i]); } }