diff options
author | Uros Majstorovic <majstor@majstor.org> | 2018-01-11 21:28:22 +0100 |
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committer | Uros Majstorovic <majstor@majstor.org> | 2018-01-11 21:28:22 +0100 |
commit | 0d0e9facfcea3cf96da3b63285865182fdd5477e (patch) | |
tree | cca42e7aab184cad981c794073a4376aa2616193 /code/ecp/crypto/test/aead_enc.c | |
parent | 05e11f491b84a110b9ca08612df370b91e9bdcbc (diff) |
refatoring dirs
Diffstat (limited to 'code/ecp/crypto/test/aead_enc.c')
-rw-r--r-- | code/ecp/crypto/test/aead_enc.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/code/ecp/crypto/test/aead_enc.c b/code/ecp/crypto/test/aead_enc.c new file mode 100644 index 0000000..a103490 --- /dev/null +++ b/code/ecp/crypto/test/aead_enc.c @@ -0,0 +1,55 @@ +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> + +#include <crypto.h> +#include <curve25519.h> + +#define NONCE_LEN 8 +#define TAG_LEN 16 +#define KEY_LEN 32 + +static int v_rng(void *buf, size_t bufsize) { + int fd; + + if((fd = open("/dev/urandom", O_RDONLY)) < 0) return -1; + size_t nb = read(fd, buf, bufsize); + close(fd); + if (nb != bufsize) return -1; + return 0; +} + +int main(int argc, char *argv[]) { + unsigned char in_msg[1024]; + unsigned char out_msg[1024]; + size_t in_msg_len; + size_t out_msg_len; + int rv; + unsigned char public1[KEY_LEN]; + unsigned char private1[KEY_LEN]; + unsigned char public2[KEY_LEN]; + unsigned char private2[KEY_LEN]; + unsigned char key[KEY_LEN]; + unsigned char nonce[NONCE_LEN]; + + strcpy((char *)in_msg, "PERA JE CAR!"); + in_msg_len = strlen((char *)in_msg) + 1; + + v_rng(nonce, NONCE_LEN); + X25519_keypair(public1, private1, v_rng); + X25519_keypair(public2, private2, v_rng); + + X25519(key, private1, public2); + rv = aead_chacha20_poly1305_seal(out_msg, &out_msg_len, 1024, key, TAG_LEN, nonce, NONCE_LEN, in_msg, in_msg_len, NULL, 0); + printf("SEAL RV:%d ILEN:%lu OLEN:%lu\n", rv, in_msg_len, out_msg_len); + + unlink("msg.enc"); + int fd = open("msg.enc", O_WRONLY | O_CREAT); + write(fd, private2, KEY_LEN); + write(fd, public1, KEY_LEN); + write(fd, nonce, NONCE_LEN); + write(fd, out_msg, out_msg_len); + close(fd); +}
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