RubNoobs/Systemsicherheit
RubNoobs/Systemsicherheit
3
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

[Assignment-7] .
All checks were successful
Latex Build / build-latex (Assignment 4 - Protokollsicherheit (Praxis)) (push) Successful in 59s
Details
Latex Build / build-latex (Assignment 5 - Software Security - Teil 1) (push) Successful in 1m4s
Details
Latex Build / build-latex (Assignment 6 - Software Security - Teil 2) (push) Successful in 1m0s
Details
Latex Build / build-latex (Assignment 4 - Protokollsicherheit (Praxis)) (pull_request) Successful in 33s
Details
Latex Build / build-latex (Assignment 5 - Software Security - Teil 1) (pull_request) Successful in 8s
Details
Latex Build / build-latex (Assignment 6 - Software Security - Teil 2) (pull_request) Successful in 8s
Details

Browse source
This commit is contained in:
Sascha Tommasone 2024-07-06 16:02:26 +02:00
parent d61bafdb85
commit 5a12559f5d
Signed by: saschato
GPG key ID: 751068A86FCAA217
1 changed files with 5 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
7-SGX_Hands-on/src/app/embedded_device.c
View file

@ -27,6 +27,7 @@ static void syntax_exit() {
static EVP_PKEY *read_public_key(uint8_t *public_key_file, EVP_PKEY **key) { static EVP_PKEY *read_public_key(uint8_t *public_key_file, EVP_PKEY **key) {
if(public_key_file == NULL) { if(public_key_file == NULL) {
fprintf(stderr, "public_key_file is a null pointer!\n"); fprintf(stderr, "public_key_file is a null pointer!\n");
return NULL;
} }
FILE *fd = fopen(public_key_file, "rb"); FILE *fd = fopen(public_key_file, "rb");
@ -44,11 +45,13 @@ static EVP_PKEY *read_public_key(uint8_t *public_key_file, EVP_PKEY **key) {
static void hash_firmware(uint8_t *firmware_path, EVP_MD_CTX **ctx) { static void hash_firmware(uint8_t *firmware_path, EVP_MD_CTX **ctx) {
if(firmware_path == NULL) { if(firmware_path == NULL) {
fprintf(stderr, "firmware_path is a null pointer!\n"); fprintf(stderr, "firmware_path is a null pointer!\n");
return;
} }
FILE *fd = fopen(firmware_path, "rb"); FILE *fd = fopen(firmware_path, "rb");
if(fd == NULL) { if(fd == NULL) {
fprintf(stderr, "failed to open firmware!\n"); fprintf(stderr, "failed to open firmware!\n");
goto exit;
} }
size_t size; size_t size;
@ -57,7 +60,7 @@ static void hash_firmware(uint8_t *firmware_path, EVP_MD_CTX **ctx) {
EVP_DigestVerifyUpdate(*ctx, buf, size); EVP_DigestVerifyUpdate(*ctx, buf, size);
} }
fclose(fd); exit: fclose(fd);
} }
static void read_signature(uint8_t *signature, size_t *signature_size) { static void read_signature(uint8_t *signature, size_t *signature_size) {