WolfSSL
/
wolfssl-examples
mirror of https://github.com/wolfSSL/wolfssl-examples.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Improve the endianess logic for test vector.

pull/285/head
David Garske 2022-01-27 14:40:45 -08:00
parent a93591c6b0
commit f61f8f9a5b
1 changed files with 12 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
pk/curve25519/curve25519_test.c
View File

@ -66,15 +66,11 @@ static void print_secret(char* desc, byte* s, int sLen)
printf("\n");
}
int curve25519_secret(const byte* priv, const byte* pub, byte* secret, word32* secretsz)
int curve25519_secret(const byte* priv, const byte* pub, byte* secret,
word32* secretsz, int endianess)
{
int ret;
curve25519_key privKey, pubKey;
#if defined(LITTLE_ENDIAN_ORDER)
int endianess = EC25519_LITTLE_ENDIAN;
#else
int endianess = EC25519_BIG_ENDIAN;
#endif
ret = wc_curve25519_init(&privKey);
if (ret == 0)
@ -96,7 +92,8 @@ int curve25519_secret(const byte* priv, const byte* pub, byte* secret, word32* s
if (ret == 0)
ret = wc_curve25519_import_public_ex(pub, 32, &pubKey, endianess);
if (ret == 0) {
ret = wc_curve25519_shared_secret_ex(&privKey, &pubKey, secret, secretsz, endianess);
ret = wc_curve25519_shared_secret_ex(&privKey, &pubKey, secret,
secretsz, endianess);
}
wc_curve25519_free(&pubKey);
@ -108,7 +105,7 @@ int main(void)
{
int ret;
/* RFC 7748 Curve25519 Test Vectors */
/* RFC 7748 Curve25519 Test Vectors - in little endian format */
const char* alice_prv_hexstr = "77076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c2a";
const char* alice_pub_hexstr = "8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a";
const char* bob_prv_hexstr = "5dab087e624a8a4b79e17f8b83800ee66f3bb1292618b6fd1c2f8b27ff88e0eb";
@ -126,9 +123,13 @@ int main(void)
hex2bin(bob_pub, bob_pub_hexstr);
secret_expsz = hex2bin(secret_exp, secret_hexstr);
ret = curve25519_secret(alice_prv, bob_pub, alice_secret, &alice_secretsz);
if (ret == 0)
ret = curve25519_secret(bob_prv, alice_pub, bob_secret, &bob_secretsz);
/* test vectors are in little endian */
ret = curve25519_secret(alice_prv, bob_pub, alice_secret, &alice_secretsz,
EC25519_LITTLE_ENDIAN);
if (ret == 0) {
ret = curve25519_secret(bob_prv, alice_pub, bob_secret, &bob_secretsz,
EC25519_LITTLE_ENDIAN);
}
if (ret == 0) {
print_secret("Secret Generated Alice", alice_secret, (int)alice_secretsz);