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Add BN_mod_sqrt() check outside of generation

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Andrew 2023-05-28 20:44:25 +03:00 committed by GitHub
parent 04601b7260
commit 78194d7ab9
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 6 deletions
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19
Srv2003KGmain.cpp
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@ -88,7 +88,7 @@ void print_product_key(uint8_t *pk)
} }
} }
void verify2003(EC_GROUP *ec, EC_POINT *generator, EC_POINT *public_key, char *cdkey) int verify2003(EC_GROUP *ec, EC_POINT *generator, EC_POINT *public_key, char *cdkey)
{ {
uint8_t key[25]; uint8_t key[25];
int i, j, k; int i, j, k;
@ -176,9 +176,6 @@ void verify2003(EC_GROUP *ec, EC_POINT *generator, EC_POINT *public_key, char *c
h2[0] = (md[0] | (md[1] << 8) | (md[2] << 16) | (md[3] << 24)) & 0x7fffffff; h2[0] = (md[0] | (md[1] << 8) | (md[2] << 16) | (md[3] << 24)) & 0x7fffffff;
printf("Calculated hash: %.8x\n", h2[0]); printf("Calculated hash: %.8x\n", h2[0]);
if (h2[0] == hash[0]) printf("Key VALID\n");
else printf("Key invalid\n");
BN_free(s); BN_free(s);
BN_free(h); BN_free(h);
BN_free(x); BN_free(x);
@ -186,6 +183,15 @@ void verify2003(EC_GROUP *ec, EC_POINT *generator, EC_POINT *public_key, char *c
EC_POINT_free(r); EC_POINT_free(r);
EC_POINT_free(t); EC_POINT_free(t);
BN_CTX_free(ctx); BN_CTX_free(ctx);
if (h2[0] == hash[0]) {
printf("Key VALID\n");
return 1;
}
else {
printf("Key invalid\n");
return 0;
}
} }
void generate2003(uint8_t *pkey, EC_GROUP *ec, EC_POINT *generator, BIGNUM *order, BIGNUM *priv, uint32_t *osfamily, uint32_t *prefix) void generate2003(uint8_t *pkey, EC_GROUP *ec, EC_POINT *generator, BIGNUM *order, BIGNUM *priv, uint32_t *osfamily, uint32_t *prefix)
@ -328,9 +334,12 @@ int main()
osfamily[0] = 1280; osfamily[0] = 1280;
RAND_pseudo_bytes((uint8_t *)prefix, 4); RAND_pseudo_bytes((uint8_t *)prefix, 4);
prefix[0] &= 0x3ff; prefix[0] &= 0x3ff;
do {
generate2003(pkey, ec, g, n, priv, osfamily, prefix); generate2003(pkey, ec, g, n, priv, osfamily, prefix);
} while (!verify2003(ec, g, pub, (char*)pkey));
print_product_key(pkey); printf("\n\n"); print_product_key(pkey); printf("\n\n");
verify2003(ec, g, pub, (char*)pkey);
BN_CTX_free(ctx); BN_CTX_free(ctx);