Viewing file:  scalarmult_ed25519.c (4.92 KB) -rw-r--r--
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#define TEST_NAME "scalarmult_ed25519"
#include "cmptest.h"
static const unsigned char non_canonical_p[32] = {
0xf6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
};
static const unsigned char non_canonical_invalid_p[32] = {
0xf5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
};
static const unsigned char max_canonical_p[32] = {
0xe4, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
};
static const unsigned char B[32] = {
0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66
};
int
main(void)
{
unsigned char *n, *p, *q, *q2;
n = (unsigned char *) sodium_malloc(crypto_scalarmult_ed25519_SCALARBYTES);
p = (unsigned char *) sodium_malloc(crypto_scalarmult_ed25519_BYTES);
q = (unsigned char *) sodium_malloc(crypto_scalarmult_ed25519_BYTES);
q2 = (unsigned char *) sodium_malloc(crypto_scalarmult_ed25519_BYTES);
randombytes_buf(n, crypto_scalarmult_ed25519_SCALARBYTES);
if (crypto_scalarmult_ed25519_base(q, n) != 0) {
printf("crypto_scalarmult_ed25519_base() failed\n");
}
memcpy(p, B, crypto_scalarmult_ed25519_BYTES);
if (crypto_scalarmult_ed25519(q2, n, p) != 0) {
printf("crypto_scalarmult_ed25519() failed\n");
}
if (memcmp(q, q2, crypto_scalarmult_ed25519_BYTES) != 0) {
printf("crypto_scalarmult_ed25519_base(n) != crypto_scalarmult_ed25519(n, 9)\n");
}
memset(n, 0, crypto_scalarmult_ed25519_SCALARBYTES);
if (crypto_scalarmult_ed25519_base(q, n) != -1) {
printf("crypto_scalarmult_ed25519_base(0) passed\n");
}
if (crypto_scalarmult_ed25519(q2, n, p) != -1) {
printf("crypto_scalarmult_ed25519(0) passed\n");
}
if (crypto_scalarmult_ed25519_noclamp(q2, n, p) != -1) {
printf("crypto_scalarmult_ed25519_noclamp(0) passed\n");
}
n[0] = 1;
if (crypto_scalarmult_ed25519_base(q, n) != 0) {
printf("crypto_scalarmult_ed25519_base() failed\n");
}
if (crypto_scalarmult_ed25519(q2, n, p) != 0) {
printf("crypto_scalarmult_ed25519() failed\n");
}
if (crypto_scalarmult_ed25519_noclamp(q2, n, p) != 0) {
printf("crypto_scalarmult_ed25519_noclamp() failed\n");
}
if (crypto_scalarmult_ed25519(q, n, non_canonical_p) != -1) {
printf("crypto_scalarmult_ed25519() didn't fail\n");
}
if (crypto_scalarmult_ed25519(q, n, non_canonical_invalid_p) != -1) {
printf("crypto_scalarmult_ed25519() didn't fail\n");
}
if (crypto_scalarmult_ed25519(q, n, max_canonical_p) != 0) {
printf("crypto_scalarmult_ed25519() failed\n");
}
n[0] = 9;
if (crypto_scalarmult_ed25519(q, n, p) != 0) {
printf("crypto_scalarmult_ed25519() failed\n");
}
if (crypto_scalarmult_ed25519_noclamp(q2, n, p) != 0) {
printf("crypto_scalarmult_ed25519_noclamp() failed\n");
}
if (memcmp(q, q2, crypto_scalarmult_ed25519_BYTES) == 0) {
printf("clamping not applied\n");
}
n[0] = 9;
if (crypto_scalarmult_ed25519_base(q, n) != 0) {
printf("crypto_scalarmult_ed25519_base() failed\n");
}
if (crypto_scalarmult_ed25519_base_noclamp(q2, n) != 0) {
printf("crypto_scalarmult_ed25519_base_noclamp() failed\n");
}
if (memcmp(q, q2, crypto_scalarmult_ed25519_BYTES) == 0) {
printf("clamping not applied\n");
}
n[0] = 8;
n[31] = 64;
if (crypto_scalarmult_ed25519_noclamp(q2, n, p) != 0) {
printf("crypto_scalarmult_ed25519_noclamp() failed\n");
}
if (memcmp(q, q2, crypto_scalarmult_ed25519_BYTES) != 0) {
printf("inconsistent clamping\n");
}
memset(p, 0, crypto_scalarmult_ed25519_BYTES);
if (crypto_scalarmult_ed25519(q, n, p) != -1) {
printf("crypto_scalarmult_ed25519() didn't fail\n");
}
if (crypto_scalarmult_ed25519_noclamp(q, n, p) != -1) {
printf("crypto_scalarmult_ed25519_noclamp() didn't fail\n");
}
n[0] = 8;
if (crypto_scalarmult_ed25519(q, n, p) != -1) {
printf("crypto_scalarmult_ed25519() didn't fail\n");
}
if (crypto_scalarmult_ed25519_noclamp(q, n, p) != -1) {
printf("crypto_scalarmult_ed25519_noclamp() didn't fail\n");
}
sodium_free(q2);
sodium_free(q);
sodium_free(p);
sodium_free(n);
assert(crypto_scalarmult_ed25519_BYTES == crypto_scalarmult_ed25519_bytes());
assert(crypto_scalarmult_ed25519_SCALARBYTES == crypto_scalarmult_ed25519_scalarbytes());
printf("OK\n");
return 0;
}
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