From ab7279c6d43c39fd1887c093b37025a7e40ffc8f Mon Sep 17 00:00:00 2001 From: Benedict Date: Thu, 2 Feb 2017 00:41:03 +0100 Subject: set5: task34: added --- set5/task34.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 set5/task34.c (limited to 'set5') diff --git a/set5/task34.c b/set5/task34.c new file mode 100644 index 0000000..31fc876 --- /dev/null +++ b/set5/task34.c @@ -0,0 +1,33 @@ +#include "../lib/lib.h" +#include "../lib/lib2.h" +#include "../lib/lib3.h" +#include "../lib/lib4.h" +#include "../lib/lib5.h" +#include + +int main() +{ + // sha1 key + srand(time(NULL)); + char key[20]; + char hex_key[40]; + char *encrypted; + char *msg = "Hallo verschlüssele mich bitte"; + struct dh_param dh; + //do_dh_key_exchange(&dh); + dh_mitm(&dh); + sha1_key_from_dh(&dh, key); + hex_binary_to_string(key, hex_key, 20); + printf("key is: %s\n", hex_key); + + // encrypt a message with AES-CBC + generate_random_bytes(iv, 16); + + int enc_length = aes_cbc_padded(msg, strlen(msg), &encrypted, key, iv, 1); + char *hex_enc = malloc(enc_length + 16); + hex_binary_to_string(encrypted, hex_enc, enc_length); + printf("encryted message: %s\n", hex_enc); + + + +} -- cgit v1.2.3-70-g09d2