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authorPetr Štetiar <ynezz@true.cz>2021-07-05 11:54:26 +0200
committerRafał Miłecki <rafal@milecki.pl>2021-10-05 16:20:10 +0200
commit8cc9a74a3f6bf363645efda6db417f8dadd3d844 (patch)
tree68f1648a077df8e49328f087eccaf94c2e47d1e8 /tools/firmware-utils/src/pc1crypt.c
parentf82c93b93c0a021921ac7a30ba6e7a090c7ddd1c (diff)
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firmware-utils: update to version 2021-10-05
Includes following changes: db65821f006c cmake: fix missing install target 3a0cfc856991 Add initial GitLab CI support 8f47adea6f87 Add missing includes for byte swap operations fbafae9f8037 Convert to CMake based project Additionaly moves source code into separate Git project repository and converts the package build to utilize CMake. Signed-off-by: Petr Štetiar <ynezz@true.cz> [rmilecki: rebase, update to the latest repo git & rm -r src] Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'tools/firmware-utils/src/pc1crypt.c')
-rw-r--r--tools/firmware-utils/src/pc1crypt.c356
1 files changed, 0 insertions, 356 deletions
diff --git a/tools/firmware-utils/src/pc1crypt.c b/tools/firmware-utils/src/pc1crypt.c
deleted file mode 100644
index be1038b781..0000000000
--- a/tools/firmware-utils/src/pc1crypt.c
+++ /dev/null
@@ -1,356 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
- *
- * This code was based on:
- * PC1 Cipher Algorithm ( Pukall Cipher 1 )
- * By Alexander PUKALL 1991
- * free code no restriction to use
- * please include the name of the Author in the final software
- * the Key is 128 bits
- * http://membres.lycos.fr/pc1/
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h> /* for unlink() */
-#include <libgen.h>
-#include <getopt.h> /* for getopt() */
-#include <stdarg.h>
-#include <errno.h>
-#include <sys/stat.h>
-
-struct pc1_ctx {
- unsigned short ax;
- unsigned short bx;
- unsigned short cx;
- unsigned short dx;
- unsigned short si;
- unsigned short tmp;
- unsigned short x1a2;
- unsigned short x1a0[8];
- unsigned short res;
- unsigned short i;
- unsigned short inter;
- unsigned short cfc;
- unsigned short cfd;
- unsigned short compte;
- unsigned char cle[17];
- short c;
-};
-
-static void pc1_finish(struct pc1_ctx *pc1)
-{
- /* erase all variables */
- memset(pc1, 0, sizeof(struct pc1_ctx));
-}
-
-static void pc1_code(struct pc1_ctx *pc1)
-{
- pc1->dx = pc1->x1a2 + pc1->i;
- pc1->ax = pc1->x1a0[pc1->i];
- pc1->cx = 0x015a;
- pc1->bx = 0x4e35;
-
- pc1->tmp = pc1->ax;
- pc1->ax = pc1->si;
- pc1->si = pc1->tmp;
-
- pc1->tmp = pc1->ax;
- pc1->ax = pc1->dx;
- pc1->dx = pc1->tmp;
-
- if (pc1->ax != 0) {
- pc1->ax = pc1->ax * pc1->bx;
- }
-
- pc1->tmp = pc1->ax;
- pc1->ax = pc1->cx;
- pc1->cx = pc1->tmp;
-
- if (pc1->ax != 0) {
- pc1->ax = pc1->ax * pc1->si;
- pc1->cx = pc1->ax + pc1->cx;
- }
-
- pc1->tmp = pc1->ax;
- pc1->ax = pc1->si;
- pc1->si = pc1->tmp;
- pc1->ax = pc1->ax * pc1->bx;
- pc1->dx = pc1->cx + pc1->dx;
-
- pc1->ax = pc1->ax + 1;
-
- pc1->x1a2 = pc1->dx;
- pc1->x1a0[pc1->i] = pc1->ax;
-
- pc1->res = pc1->ax ^ pc1->dx;
- pc1->i = pc1->i + 1;
-}
-
-static void pc1_assemble(struct pc1_ctx *pc1)
-{
- pc1->x1a0[0] = (pc1->cle[0] * 256) + pc1->cle[1];
-
- pc1_code(pc1);
- pc1->inter = pc1->res;
-
- pc1->x1a0[1] = pc1->x1a0[0] ^ ((pc1->cle[2]*256) + pc1->cle[3]);
- pc1_code(pc1);
- pc1->inter = pc1->inter ^ pc1->res;
-
- pc1->x1a0[2] = pc1->x1a0[1] ^ ((pc1->cle[4]*256) + pc1->cle[5]);
- pc1_code(pc1);
- pc1->inter = pc1->inter ^ pc1->res;
-
- pc1->x1a0[3] = pc1->x1a0[2] ^ ((pc1->cle[6]*256) + pc1->cle[7]);
- pc1_code(pc1);
- pc1->inter = pc1->inter ^ pc1->res;
-
- pc1->x1a0[4] = pc1->x1a0[3] ^ ((pc1->cle[8]*256) + pc1->cle[9]);
- pc1_code(pc1);
- pc1->inter = pc1->inter ^ pc1->res;
-
- pc1->x1a0[5] = pc1->x1a0[4] ^ ((pc1->cle[10]*256) + pc1->cle[11]);
- pc1_code(pc1);
- pc1->inter = pc1->inter ^ pc1->res;
-
- pc1->x1a0[6] = pc1->x1a0[5] ^ ((pc1->cle[12]*256) + pc1->cle[13]);
- pc1_code(pc1);
- pc1->inter = pc1->inter ^ pc1->res;
-
- pc1->x1a0[7] = pc1->x1a0[6] ^ ((pc1->cle[14]*256) + pc1->cle[15]);
- pc1_code(pc1);
- pc1->inter = pc1->inter ^ pc1->res;
-
- pc1->i = 0;
-}
-
-static unsigned char pc1_decrypt(struct pc1_ctx *pc1, short c)
-{
- pc1_assemble(pc1);
- pc1->cfc = pc1->inter >> 8;
- pc1->cfd = pc1->inter & 255; /* cfc^cfd = random byte */
-
- c = c ^ (pc1->cfc ^ pc1->cfd);
- for (pc1->compte = 0; pc1->compte <= 15; pc1->compte++) {
- /* we mix the plaintext byte with the key */
- pc1->cle[pc1->compte] = pc1->cle[pc1->compte] ^ c;
- }
-
- return c;
-}
-
-static unsigned char pc1_encrypt(struct pc1_ctx *pc1, short c)
-{
- pc1_assemble(pc1);
- pc1->cfc = pc1->inter >> 8;
- pc1->cfd = pc1->inter & 255; /* cfc^cfd = random byte */
-
- for (pc1->compte = 0; pc1->compte <= 15; pc1->compte++) {
- /* we mix the plaintext byte with the key */
- pc1->cle[pc1->compte] = pc1->cle[pc1->compte] ^ c;
- }
- c = c ^ (pc1->cfc ^ pc1->cfd);
-
- return c;
-}
-
-static void pc1_init(struct pc1_ctx *pc1)
-{
- memset(pc1, 0, sizeof(struct pc1_ctx));
-
- /* ('Remsaalps!123456') is the key used, you can change it */
- strcpy(pc1->cle, "Remsaalps!123456");
-}
-
-static void pc1_decrypt_buf(struct pc1_ctx *pc1, unsigned char *buf,
- unsigned len)
-{
- unsigned i;
-
- for (i = 0; i < len; i++)
- buf[i] = pc1_decrypt(pc1, buf[i]);
-}
-
-static void pc1_encrypt_buf(struct pc1_ctx *pc1, unsigned char *buf,
- unsigned len)
-{
- unsigned i;
-
- for (i = 0; i < len; i++)
- buf[i] = pc1_encrypt(pc1, buf[i]);
-}
-
-/*
- * Globals
- */
-static char *ifname;
-static char *progname;
-static char *ofname;
-static int decrypt;
-
-/*
- * Message macros
- */
-#define ERR(fmt, ...) do { \
- fflush(0); \
- fprintf(stderr, "[%s] *** error: " fmt "\n", \
- progname, ## __VA_ARGS__ ); \
-} while (0)
-
-#define ERRS(fmt, ...) do { \
- int save = errno; \
- fflush(0); \
- fprintf(stderr, "[%s] *** error: " fmt ": %s\n", \
- progname, ## __VA_ARGS__, strerror(save)); \
-} while (0)
-
-void usage(int status)
-{
- FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
-
- fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
- fprintf(stream,
-"\n"
-"Options:\n"
-" -d decrypt instead of encrypt"
-" -i <file> read input from the file <file>\n"
-" -o <file> write output to the file <file>\n"
-" -h show this screen\n"
- );
-
- exit(status);
-}
-
-#define BUFSIZE (64 * 1024)
-
-int main(int argc, char *argv[])
-{
- struct pc1_ctx pc1;
- int res = EXIT_FAILURE;
- int err;
- struct stat st;
- char *buf;
- unsigned total;
-
- FILE *outfile, *infile;
-
- progname = basename(argv[0]);
-
- while ( 1 ) {
- int c;
-
- c = getopt(argc, argv, "di:o:h");
- if (c == -1)
- break;
-
- switch (c) {
- case 'd':
- decrypt = 1;
- break;
- case 'i':
- ifname = optarg;
- break;
- case 'o':
- ofname = optarg;
- break;
- case 'h':
- usage(EXIT_SUCCESS);
- break;
- default:
- usage(EXIT_FAILURE);
- break;
- }
- }
-
- if (ifname == NULL) {
- ERR("no input file specified");
- goto err;
- }
-
- if (ofname == NULL) {
- ERR("no output file specified");
- goto err;
- }
-
- err = stat(ifname, &st);
- if (err){
- ERRS("stat failed on %s", ifname);
- goto err;
- }
-
- total = st.st_size;
- buf = malloc(BUFSIZE);
- if (!buf) {
- ERR("no memory for buffer\n");
- goto err;
- }
-
- infile = fopen(ifname, "r");
- if (infile == NULL) {
- ERRS("could not open \"%s\" for reading", ifname);
- goto err_free;
- }
-
- outfile = fopen(ofname, "w");
- if (outfile == NULL) {
- ERRS("could not open \"%s\" for writing", ofname);
- goto err_close_in;
- }
-
- pc1_init(&pc1);
- while (total > 0) {
- unsigned datalen;
-
- if (total > BUFSIZE)
- datalen = BUFSIZE;
- else
- datalen = total;
-
- errno = 0;
- fread(buf, datalen, 1, infile);
- if (errno != 0) {
- ERRS("unable to read from file %s", ifname);
- goto err_close_out;
- }
-
- if (decrypt)
- pc1_decrypt_buf(&pc1, buf, datalen);
- else
- pc1_encrypt_buf(&pc1, buf, datalen);
-
- errno = 0;
- fwrite(buf, datalen, 1, outfile);
- if (errno) {
- ERRS("unable to write to file %s", ofname);
- goto err_close_out;
- }
-
- total -= datalen;
- }
- pc1_finish(&pc1);
-
- res = EXIT_SUCCESS;
-
- fflush(outfile);
-
- err_close_out:
- fclose(outfile);
- if (res != EXIT_SUCCESS) {
- unlink(ofname);
- }
-
- err_close_in:
- fclose(infile);
-
- err_free:
- free(buf);
-
- err:
- return res;
-}
-