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switch the XP algorithm to use bink.h data

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create script in python to format said data to C
begin transition to using C++ functions
This commit is contained in:
Neo
2023-05-31 18:49:44 -07:00
parent 46adbee701
commit 3999ed0996
8 changed files with 195 additions and 64 deletions
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36
xp_algorithm.cpp
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@@ -16,6 +16,7 @@
*/
#include "shared.h"
#include "bink.h"
#define FIELD_BITS 384
#define FIELD_BYTES 48
@@ -203,6 +204,12 @@ void generate(uint8_t *pkey, EC_GROUP *ec, EC_POINT *generator, BIGNUM *order, B
int main()
{
initBink();
rand();
srand(time(nullptr));
rand();
// Init
BIGNUM *a, *b, *p, *gx, *gy, *pubx, *puby, *n, *priv;
BN_CTX *ctx = BN_CTX_new();
@@ -218,27 +225,29 @@ int main()
n = BN_new();
priv = BN_new();
char* BINKID = "2E";
// Data from pidgen-Bink-resources
/* Elliptic curve parameters: y^2 = x^3 + ax + b mod p */
BN_hex2bn(&p, "92ddcf14cb9e71f4489a2e9ba350ae29454d98cb93bdbcc07d62b502ea12238ee904a8b20d017197aae0c103b32713a9");
BN_set_word(a, 1);
BN_set_word(b, 0);
BN_dec2bn(&p, std::get<0>(BINKData[BINKID].E).c_str());
BN_dec2bn(&a, std::get<1>(BINKData[BINKID].E).c_str());
BN_dec2bn(&b, std::get<2>(BINKData[BINKID].E).c_str());
/* base point (generator) G */
BN_hex2bn(&gx, "46E3775ECE21B0898D39BEA57050D422A0AF989E497962BAEE2CB17E0A28D5360D5476B8DC966443E37A14F1AEF37742");
BN_hex2bn(&gy, "7C8E741D2C34F4478E325469CD491603D807222C9C4AC09DDB2B31B3CE3F7CC191B3580079932BC6BEF70BE27604F65E");
BN_dec2bn(&gx, std::get<0>(BINKData[BINKID].G).c_str());
BN_dec2bn(&gy, std::get<1>(BINKData[BINKID].G).c_str());
/* inverse of public key */
BN_hex2bn(&pubx, "5D8DBE75198015EC41C45AAB6143542EB098F6A5CC9CE4178A1B8A1E7ABBB5BC64DF64FAF6177DC1B0988AB00BA94BF8");
BN_hex2bn(&puby, "23A2909A0B4803C89F910C7191758B48746CEA4D5FF07667444ACDB9512080DBCA55E6EBF30433672B894F44ACE92BFA");
BN_dec2bn(&pubx, std::get<0>(BINKData[BINKID].K).c_str());
BN_dec2bn(&puby, std::get<1>(BINKData[BINKID].K).c_str());
// Computed data
/* order of G - computed in 18 hours using a P3-450 */
BN_hex2bn(&n, "DB6B4C58EFBAFD");
BN_dec2bn(&n, BINKData[BINKID].n.c_str());
/* THE private key - computed in 10 hours using a P3-450 */
BN_hex2bn(&priv, "565B0DFF8496C8");
BN_dec2bn(&priv, BINKData[BINKID].k.c_str());
// Calculation
EC_GROUP *ec = EC_GROUP_new_curve_GFp(p, a, b, ctx);
@@ -249,11 +258,16 @@ int main()
uint8_t pkey[26];
uint32_t pid[1];
pid[0] = 640000000 << 1; /* <- change */
pid[0] = 640 * 1000000 ; /* <- change */
pid[0] += rand() & 999999;
printf("> PID: %d\n", pid[0]);
// generate a key
BN_sub(priv, n, priv);
generate(pkey, ec, g, n, priv, pid);
print_product_key(pkey); printf("\n\n");
print_product_key(pkey);
printf("\n\n");
// verify the key
verify(ec, g, pub, (char*)pkey);