From 3ef6719f47b734b12c0b11c725b7f12e3fb3c08a Mon Sep 17 00:00:00 2001 From: Uros Majstorovic Date: Tue, 23 May 2017 14:19:26 +0200 Subject: fs layout updated --- code/core/crypto/test/ed25519_sign.c | 40 ++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 code/core/crypto/test/ed25519_sign.c (limited to 'code/core/crypto/test/ed25519_sign.c') diff --git a/code/core/crypto/test/ed25519_sign.c b/code/core/crypto/test/ed25519_sign.c new file mode 100644 index 0000000..da098bd --- /dev/null +++ b/code/core/crypto/test/ed25519_sign.c @@ -0,0 +1,40 @@ +#include +#include +#include +#include +#include + +#include + +#define KEY_LEN 32 +#define SIG_LEN 64 + +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 msg[1024]; + size_t msg_len; + unsigned char public[KEY_LEN]; + unsigned char private[KEY_LEN * 2]; + unsigned char signature[SIG_LEN]; + + strcpy((char *)msg, "PERA JE CAR!"); + msg_len = strlen((char *)msg) + 1; + + ED25519_keypair(public, private, v_rng); + ED25519_sign(signature, msg, msg_len, private); + + unlink("msg.sig"); + int fd = open("msg.sig", O_WRONLY | O_CREAT); + write(fd, public, KEY_LEN); + write(fd, signature, SIG_LEN); + close(fd); +} \ No newline at end of file -- cgit v1.2.3