Update main file

Corrected indentation (or to be more precise, the lack of it)

See previous commits to this file to know why I did this.

1 files changed, 309 insertions, 499 deletions

diff --git a/main.cpp b/main.cpp
index f5e8043..22a250c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,557 +1,367 @@
-#include <stdio.h>
+/*
+	Windows XP CD Key Verification/Generator v0.03
+	by z22
+	
+	Compile with OpenSSL libs, modify to suit your needs.
+	http://www.slproweb.com/download/Win32OpenSSL-v0.9.8b.exe
 
-#include <string.h>
+	History:
+	0.03	Stack corruptionerror on exit fixed (now pkey is large enough)
+			More Comments added
+	0.02	Changed name the *.cpp;
+			Fixed minor bugs & Make it compilable on VC++
+	0.01	First version compilable MingW
 
-#include <openssl/bn.h>
 
-#include <openssl/ec.h>
+*/
 
+#include <stdio.h>
+#include <string.h>
+#include <openssl/bn.h>
+#include <openssl/ec.h>
 #include <openssl/sha.h>
-
 #include <assert.h>
 
-#define FIELD_BITS 384
 
+#define FIELD_BITS 384
 #define FIELD_BYTES 48
-
 unsigned char cset[] = "BCDFGHJKMPQRTVWXY2346789";
 
-static void unpack(unsigned long *pid, unsigned long *hash, unsigned long *sig, unsigned long *raw)
 
+static void unpack(unsigned long *pid, unsigned long *hash, unsigned long *sig, unsigned long *raw)
 {
-
-// pid = Bit 0..30
-
-pid[0] = raw[0] & 0x7fffffff;
-
-// hash(s) = Bit 31..58
-
-hash[0] = ((raw[0] >> 31) | (raw[1] << 1)) & 0xfffffff;
-
-// sig(e) = bit 58..113
-
-sig[0] = (raw[1] >> 27) | (raw[2] << 5);
-
-sig[1] = (raw[2] >> 27) | (raw[3] << 5);
-
+ // pid = Bit 0..30 
+	pid[0] = raw[0] & 0x7fffffff;
+ 
+ // hash(s) = Bit 31..58
+	hash[0] = ((raw[0] >> 31) | (raw[1] << 1)) & 0xfffffff;
+ 
+ // sig(e) = bit 58..113
+	sig[0] = (raw[1] >> 27) | (raw[2] << 5);
+	sig[1] = (raw[2] >> 27) | (raw[3] << 5);
 }
 
 static void pack(unsigned long *raw, unsigned long *pid, unsigned long *hash, unsigned long *sig)
-
 {
-
-raw[0] = pid[0] | ((hash[0] & 1) << 31);
-
-raw[1] = (hash[0] >> 1) | ((sig[0] & 0x1f) << 27);
-
-raw[2] = (sig[0] >> 5) | (sig[1] << 27);
-
-raw[3] = sig[1] >> 5;
-
+	raw[0] = pid[0] | ((hash[0] & 1) << 31);
+	raw[1] = (hash[0] >> 1) | ((sig[0] & 0x1f) << 27);
+	raw[2] = (sig[0] >> 5) | (sig[1] << 27);
+	raw[3] = sig[1] >> 5;
 }
 
 // Reverse data
-
 static void endian(unsigned char *data, int len)
-
 {
-
-int i;
-
-for (i = 0; i < len/2; i++) {
-
-unsigned char temp;
-
-temp = data;
-
-data = data[len-i-1];
-
-data[len-i-1] = temp;
-
-}
-
+	int i;
+	for (i = 0; i < len/2; i++) {
+		unsigned char temp;
+		temp = data[i];
+		data[i] = data[len-i-1];
+		data[len-i-1] = temp;
+	}
 }
 
 void unbase24(unsigned long *x, unsigned char *c)
-
 {
 
-memset(x, 0, 16);
-
-int i, n;
-
-BIGNUM *y = BN_new();
-
-BN_zero(y);
-
-for (i = 0; i < 25; i++)
-
-{
-
-BN_mul_word(y, 24);
-
-BN_add_word(y, c);
-
-}
-
-n = BN_num_bytes(y);
-
-BN_bn2bin(y, (unsigned char *)x);
-
-BN_free(y);
-
-endian((unsigned char *)x, n);
-
+	memset(x, 0, 16);
+	int i, n;
+
+	BIGNUM *y = BN_new();
+	BN_zero(y);
+	
+	for (i = 0; i < 25; i++)
+	{
+		BN_mul_word(y, 24);
+		BN_add_word(y, c[i]);
+	}
+	n = BN_num_bytes(y);
+	BN_bn2bin(y, (unsigned char *)x);
+	BN_free(y);
+	
+	endian((unsigned char *)x, n);
 }
 
 void base24(unsigned char *c, unsigned long *x)
-
 {
+	unsigned char y[16];
+	int i;
+	BIGNUM *z;
 
-unsigned char y[16];
-
-int i;
-
-BIGNUM *z;
-
-// Convert x to BigNum z
-
-memcpy(y, x, sizeof(y)); // Copy X to Y; Y=X
-
-for (i = 15; y == 0; i--) {} i++; // skip following nulls
+ // Convert x to BigNum z
+	memcpy(y, x, sizeof(y));				// Copy X to Y; Y=X
+	for (i = 15; y[i] == 0; i--) {} i++;	// skip following nulls
+	endian(y, i);							// Reverse y
+ 	z = BN_bin2bn(y, i, NULL);				// Convert y to BigNum z
 
-endian(y, i); // Reverse y
-
-z = BN_bin2bn(y, i, NULL); // Convert y to BigNum z
-
-// Divide z by 24 and convert remainder with cset to Base24-CDKEY Char
-
-c[25] = 0;
-
-for (i = 24; i >= 0; i--) {
-
-unsigned char t = BN_div_word(z, 24);
-
-c = cset[t];
-
-}
 
-BN_free(z);
+ // Divide z by 24 and convert remainder with cset to Base24-CDKEY Char
+	c[25] = 0;
+	for (i = 24; i >= 0; i--) {
+		unsigned char t = BN_div_word(z, 24);
+		c[i] = cset[t];
+	}
 
+	BN_free(z);
 }
 
 void print_product_id(unsigned long *pid)
-
 {
-
-char raw[12];
-
-char b[6], c[8];
-
-int i, digit = 0;
-
-// Cut a away last bit of pid and convert it to an accii-number (=raw)
-
-sprintf(raw, "%d", pid[0] >> 1);
-
-// Make b-part {640-....}
-
-strncpy(b, raw, 3);
-
-b[3] = 0;
-
-// Make c-part {...-123456X...}
-
-strcpy(c, raw + 3);
-
-// Make checksum digit-part {...56X-}
-
-assert(strlen© == 6);
-
-for (i = 0; i < 6; i++)
-
-digit -= c - '0'; // Sum digits
-
-while (digit < 0)
-
-digit += 7;
-
-c[6] = digit + '0';
-
-c[7] = 0;
-
-printf("Product ID: 55274-%s-%s-23xxx\n", b, c);
-
+	char raw[12];
+	char b[6], c[8];
+	int i, digit = 0;
+	
+ //	Cut a away last bit of pid and convert it to an accii-number (=raw)
+	sprintf(raw, "%d", pid[0] >> 1);
+ 
+ // Make b-part {640-....}
+	strncpy(b, raw, 3);
+	b[3] = 0;
+
+ // Make c-part {...-123456X...}
+	strcpy(c, raw + 3);
+
+ // Make checksum digit-part {...56X-}
+	assert(strlen(c) == 6);
+	for (i = 0; i < 6; i++) 
+		digit -= c[i] - '0';	// Sum digits
+
+	while (digit < 0) 
+		digit += 7;
+	c[6] = digit + '0';
+	c[7] = 0;
+	
+	printf("Product ID: 55274-%s-%s-23xxx\n", b, c);
 }
 
 void print_product_key(unsigned char *pk)
-
 {
-
-int i;
-
-assert(strlen((const char *)pk) == 25);
-
-for (i = 0; i < 25; i++) {
-
-putchar(pk);
-
-if (i != 24 && i % 5 == 4) putchar('-');
-
-}
-
+	int i;
+	assert(strlen((const char *)pk) == 25);
+	for (i = 0; i < 25; i++) {
+		putchar(pk[i]);
+		if (i != 24 && i % 5 == 4) putchar('-');
+	}
 }
 
 void verify(EC_GROUP *ec, EC_POINT *generator, EC_POINT *public_key, char *cdkey)
-
 {
+	unsigned char key[25];
+	int i, j, k;
 
-unsigned char key[25];
-
-int i, j, k;
-
-BN_CTX *ctx = BN_CTX_new();
-
+	BN_CTX *ctx = BN_CTX_new();
 // remove Dashs from CDKEY
-
-for (i = 0, k = 0; i < strlen(cdkey); i++) {
-
-for (j = 0; j < 24; j++) {
-
-if (cdkey != '-' && cdkey == cset[j]) {
-
-key[k++] = j;
-
-break;
-
-}
-
-assert(j < 24);
-
-}
-
-if (k >= 25) break;
-
-}
-
-// Base24_CDKEY -> Bin_CDKEY
-
-unsigned long bkey[4] = {0};
-
-unsigned long pid[1], hash[1], sig[2];
-
-unbase24(bkey, key);
-
-// Output Bin_CDKEY
-
-printf("%.8x %.8x %.8x %.8x\n", bkey[3], bkey[2], bkey[1], bkey[0]);
-
-// Divide/Extract pid_data, hash, sig from Bin_CDKEY
-
-unpack(pid, hash, sig, bkey);
-
-print_product_id(pid);
-
-printf("PID: %.8x\nHash: %.8x\nSig: %.8x %.8x\n", pid[0], hash[0], sig[1], sig[0]);
-
-BIGNUM *e, *s;
-
-/* e = hash, s = sig */
-
-e = BN_new();
-
-BN_set_word(e, hash[0]);
-
-endian((unsigned char *)sig, sizeof(sig));
-
-s = BN_bin2bn((unsigned char *)sig, sizeof(sig), NULL);
-
-BIGNUM *x = BN_new();
-
-BIGNUM *y = BN_new();
-
-EC_POINT *u = EC_POINT_new(ec);
-
-EC_POINT *v = EC_POINT_new(ec);
-
-/* v = s*generator + e*(-public_key) */
-
-EC_POINT_mul(ec, u, NULL, generator, s, ctx);
-
-EC_POINT_mul(ec, v, NULL, public_key, e, ctx);
-
-EC_POINT_add(ec, v, u, v, ctx);
-
-EC_POINT_get_affine_coordinates_GFp(ec, v, x, y, ctx);
-
-unsigned char buf[FIELD_BYTES], md[20];
-
-unsigned long h;
-
-unsigned char t[4];
-
-SHA_CTX h_ctx;
-
-/* h = (fist 32 bits of SHA1(pid || v.x, v.y)) >> 4 */
-
-SHA1_Init(&h_ctx);
-
-t[0] = pid[0] & 0xff;
-
-t[1] = (pid[0] & 0xff00) >> 8;
-
-t[2] = (pid[0] & 0xff0000) >> 16;
-
-t[3] = (pid[0] & 0xff000000) >> 24;
-
-SHA1_Update(&h_ctx, t, sizeof(t));
-
-memset(buf, 0, sizeof(buf));
-
-BN_bn2bin(x, buf);
-
-endian((unsigned char *)buf, sizeof(buf));
-
-SHA1_Update(&h_ctx, buf, sizeof(buf));
-
-memset(buf, 0, sizeof(buf));
-
-BN_bn2bin(y, buf);
-
-endian((unsigned char *)buf, sizeof(buf));
-
-SHA1_Update(&h_ctx, buf, sizeof(buf));
-
-SHA1_Final(md, &h_ctx);
-
-h = (md[0] | (md[1] << 8) | (md[2] << 16) | (md[3] << 24)) >> 4;
-
-h &= 0xfffffff;
-
-printf("Calculated hash: %.8x\n", h);
-
-if (h == hash[0]) printf("Key valid\n");
-
-else printf("Key invalid\n");
-
-putchar('\n');
-
-BN_free(e);
-
-BN_free(s);
-
-BN_free(x);
-
-BN_free(y);
-
-EC_POINT_free(u);
-
-EC_POINT_free(v);
-
-BN_CTX_free(ctx);
-
+	for (i = 0, k = 0; i < strlen(cdkey); i++) {
+		for (j = 0; j < 24; j++) {
+			if (cdkey[i] != '-' && cdkey[i] == cset[j]) {
+				key[k++] = j;
+				break;
+			}
+			assert(j < 24);
+		}
+		if (k >= 25) break;
+	}
+	
+ // Base24_CDKEY -> Bin_CDKEY
+	unsigned long bkey[4] = {0};
+	unsigned long pid[1], hash[1], sig[2];
+	unbase24(bkey, key);
+ 
+ // Output Bin_CDKEY
+	printf("%.8x %.8x %.8x %.8x\n", bkey[3], bkey[2], bkey[1], bkey[0]);
+
+ // Divide/Extract pid_data, hash, sig  from Bin_CDKEY
+	unpack(pid, hash, sig, bkey);
+	print_product_id(pid);
+	
+	printf("PID: %.8x\nHash: %.8x\nSig: %.8x %.8x\n", pid[0], hash[0], sig[1], sig[0]);
+
+	
+	BIGNUM *e, *s;
+	
+	/* e = hash, s = sig */
+	e = BN_new();
+	BN_set_word(e, hash[0]);
+	endian((unsigned char *)sig, sizeof(sig));
+	s = BN_bin2bn((unsigned char *)sig, sizeof(sig), NULL);
+	
+	BIGNUM *x = BN_new();
+	BIGNUM *y = BN_new();
+	EC_POINT *u = EC_POINT_new(ec);
+	EC_POINT *v = EC_POINT_new(ec);
+	
+	/* v = s*generator + e*(-public_key) */
+	EC_POINT_mul(ec, u, NULL, generator, s, ctx);
+	EC_POINT_mul(ec, v, NULL, public_key, e, ctx);
+	EC_POINT_add(ec, v, u, v, ctx);
+	EC_POINT_get_affine_coordinates_GFp(ec, v, x, y, ctx);
+	
+	unsigned char buf[FIELD_BYTES], md[20];
+	unsigned long h;
+	unsigned char t[4];
+	SHA_CTX h_ctx;
+	
+	/* h = (fist 32 bits of SHA1(pid || v.x, v.y)) >> 4 */
+	SHA1_Init(&h_ctx);
+	t[0] =  pid[0] & 0xff;
+	t[1] = (pid[0] & 0xff00) >> 8;
+	t[2] = (pid[0] & 0xff0000) >> 16;
+	t[3] = (pid[0] & 0xff000000) >> 24;
+	SHA1_Update(&h_ctx, t, sizeof(t));
+	
+	memset(buf, 0, sizeof(buf));
+	BN_bn2bin(x, buf);
+	endian((unsigned char *)buf, sizeof(buf));
+	SHA1_Update(&h_ctx, buf, sizeof(buf));
+	
+	memset(buf, 0, sizeof(buf));
+	BN_bn2bin(y, buf);
+	endian((unsigned char *)buf, sizeof(buf));
+	SHA1_Update(&h_ctx, buf, sizeof(buf));
+	
+	SHA1_Final(md, &h_ctx);
+	h = (md[0] | (md[1] << 8) | (md[2] << 16) | (md[3] << 24)) >> 4;
+	h &= 0xfffffff;
+	
+	printf("Calculated hash: %.8x\n", h);
+	if (h == hash[0]) printf("Key valid\n");
+	else printf("Key invalid\n");
+	putchar('\n');
+	
+	BN_free(e);
+	BN_free(s);
+	BN_free(x);
+	BN_free(y);
+	EC_POINT_free(u);
+	EC_POINT_free(v);
+
+	BN_CTX_free(ctx);
 }
 
 void generate(unsigned char *pkey, EC_GROUP *ec, EC_POINT *generator, BIGNUM *order, BIGNUM *priv, unsigned long *pid)
-
 {
-
-BN_CTX *ctx = BN_CTX_new();
-
-BIGNUM *k = BN_new();
-
-BIGNUM *s = BN_new();
-
-BIGNUM *x = BN_new();
-
-BIGNUM *y = BN_new();
-
-EC_POINT *r = EC_POINT_new(ec);
-
-unsigned long bkey[4];
-
-// Loop in case signaturepart will make cdkey(base-24 "digits") longer than 25
-
-do {
-
-BN_pseudo_rand(k, FIELD_BITS, -1, 0);
-
-EC_POINT_mul(ec, r, NULL, generator, k, ctx);
-
-EC_POINT_get_affine_coordinates_GFp(ec, r, x, y, ctx);
-
-SHA_CTX h_ctx;
-
-unsigned char t[4], md[20], buf[FIELD_BYTES];
-
-unsigned long hash[1];
-
-/* h = (fist 32 bits of SHA1(pid || r.x, r.y)) >> 4 */
-
-SHA1_Init(&h_ctx);
-
-t[0] = pid[0] & 0xff;
-
-t[1] = (pid[0] & 0xff00) >> 8;
-
-t[2] = (pid[0] & 0xff0000) >> 16;
-
-t[3] = (pid[0] & 0xff000000) >> 24;
-
-SHA1_Update(&h_ctx, t, sizeof(t));
-
-memset(buf, 0, sizeof(buf));
-
-BN_bn2bin(x, buf);
-
-endian((unsigned char *)buf, sizeof(buf));
-
-SHA1_Update(&h_ctx, buf, sizeof(buf));
-
-memset(buf, 0, sizeof(buf));
-
-BN_bn2bin(y, buf);
-
-endian((unsigned char *)buf, sizeof(buf));
-
-SHA1_Update(&h_ctx, buf, sizeof(buf));
-
-SHA1_Final(md, &h_ctx);
-
-hash[0] = (md[0] | (md[1] << 8) | (md[2] << 16) | (md[3] << 24)) >> 4;
-
-hash[0] &= 0xfffffff;
-
-/* s = priv*h + k */
-
-BN_copy(s, priv);
-
-BN_mul_word(s, hash[0]);
-
-BN_mod_add(s, s, k, order, ctx);
-
-unsigned long sig[2] = {0};
-
-BN_bn2bin(s, (unsigned char *)sig);
-
-endian((unsigned char *)sig, BN_num_bytes(s));
-
-pack(bkey, pid, hash, sig);
-
-printf("PID: %.8x\nHash: %.8x\nSig: %.8x %.8x\n", pid[0], hash[0], sig[1], sig[0]);
-
-} while (bkey[3] >= 0x62a32);
-
-base24(pkey, bkey);
-
-BN_free(k);
-
-BN_free(s);
-
-BN_free(x);
-
-BN_free(y);
-
-EC_POINT_free®;
-
-BN_CTX_free(ctx);
-
+	BN_CTX *ctx = BN_CTX_new();
+
+	BIGNUM *k = BN_new();
+	BIGNUM *s = BN_new();
+	BIGNUM *x = BN_new();
+	BIGNUM *y = BN_new();
+	EC_POINT *r = EC_POINT_new(ec);
+	unsigned long bkey[4];
+
+ // Loop in case signaturepart will make cdkey(base-24 "digits") longer than 25 
+	do {
+		BN_pseudo_rand(k, FIELD_BITS, -1, 0);
+		EC_POINT_mul(ec, r, NULL, generator, k, ctx);
+		EC_POINT_get_affine_coordinates_GFp(ec, r, x, y, ctx);
+		
+		SHA_CTX h_ctx;
+		unsigned char t[4], md[20], buf[FIELD_BYTES];
+		unsigned long hash[1];
+		/* h = (fist 32 bits of SHA1(pid || r.x, r.y)) >> 4 */
+		SHA1_Init(&h_ctx);
+		t[0] =  pid[0] & 0xff;
+		t[1] = (pid[0] & 0xff00) >> 8;
+		t[2] = (pid[0] & 0xff0000) >> 16;
+		t[3] = (pid[0] & 0xff000000) >> 24;
+		SHA1_Update(&h_ctx, t, sizeof(t));
+		
+		memset(buf, 0, sizeof(buf));
+		BN_bn2bin(x, buf);
+		endian((unsigned char *)buf, sizeof(buf));
+		SHA1_Update(&h_ctx, buf, sizeof(buf));
+		
+		memset(buf, 0, sizeof(buf));
+		BN_bn2bin(y, buf);
+		endian((unsigned char *)buf, sizeof(buf));
+		SHA1_Update(&h_ctx, buf, sizeof(buf));
+		
+		SHA1_Final(md, &h_ctx);
+		hash[0] = (md[0] | (md[1] << 8) | (md[2] << 16) | (md[3] << 24)) >> 4;
+		hash[0] &= 0xfffffff;
+		
+		/* s = priv*h + k */
+		BN_copy(s, priv);
+		BN_mul_word(s, hash[0]);
+		BN_mod_add(s, s, k, order, ctx);
+		
+		unsigned long sig[2] = {0};
+		BN_bn2bin(s, (unsigned char *)sig);
+		endian((unsigned char *)sig, BN_num_bytes(s));
+		pack(bkey, pid, hash, sig);
+		printf("PID: %.8x\nHash: %.8x\nSig: %.8x %.8x\n", pid[0], hash[0], sig[1], sig[0]);
+	} while (bkey[3] >= 0x62a32);
+
+	base24(pkey, bkey);
+	
+	BN_free(k);
+	BN_free(s);
+	BN_free(x);
+	BN_free(y);
+	EC_POINT_free(r);
+
+	BN_CTX_free(ctx);
 }
 
 int main()
-
 {
-
-// Init
-
-BIGNUM *a, *b, *p, *gx, *gy, *pubx, *puby, *n, *priv;
-
-BN_CTX *ctx = BN_CTX_new();
-
-// make BigNumbers
-
-a = BN_new();
-
-b = BN_new();
-
-p = BN_new();
-
-gx = BN_new();
-
-gy = BN_new();
-
-pubx = BN_new();
-
-puby = BN_new();
-
-n = BN_new();
-
-priv = BN_new();
-
-// 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);
-
-/* base point (generator) G */
-
-BN_hex2bn(&gx, "46E3775ECE21B0898D39BEA57050D422A0AF989E497962BAEE2CB17E0A28D5360D5476B8DC966443E37A14F1AEF37742");
-
-BN_hex2bn(&gy, "7C8E741D2C34F4478E325469CD491603D807222C9C4AC09DDB2B31B3CE3F7CC191B3580079932BC6BEF70BE27604F65E");
-
-/* inverse of public key */
-
-BN_hex2bn(&pubx, "5D8DBE75198015EC41C45AAB6143542EB098F6A5CC9CE4178A1B8A1E7ABBB5BC64DF64FAF6177DC1B0988AB00BA94BF8");
-
-BN_hex2bn(&puby, "23A2909A0B4803C89F910C7191758B48746CEA4D5FF07667444ACDB9512080DBCA55E6EBF30433672B894F44ACE92BFA");
-
-// Computed data
-
-/* order of G - computed in 18 hours using a P3-450 */
-
-BN_hex2bn(&n, "DB6B4C58EFBAFD");
-
-/* THE private key - computed in 10 hours using a P3-450 */
-
-BN_hex2bn(&priv, "565B0DFF8496C8");
-
-// Calculation
-
-EC_GROUP *ec = EC_GROUP_new_curve_GFp(p, a, b, ctx);
-
-EC_POINT *g = EC_POINT_new(ec);
-
-EC_POINT_set_affine_coordinates_GFp(ec, g, gx, gy, ctx);
-
-EC_POINT *pub = EC_POINT_new(ec);
-
-EC_POINT_set_affine_coordinates_GFp(ec, pub, pubx, puby, ctx);
-
-unsigned char pkey[26];
-
-unsigned long pid[1];
-
-pid[0] = 640000000 << 1; /* <- change */
-
-// generate a key
-
-generate(pkey, ec, g, n, priv, pid);
-
-print_product_key(pkey); printf("\n\n");
-
-// verify the key
-
-verify(ec, g, pub, (char*)pkey);
-
-// Cleanup
-
-BN_CTX_free(ctx);
-
-return 0;
-
+ // Init
+	BIGNUM *a, *b, *p, *gx, *gy, *pubx, *puby, *n, *priv;
+	BN_CTX *ctx = BN_CTX_new();
+	
+	// make BigNumbers
+	a = BN_new();
+	b = BN_new();
+	p = BN_new();
+	gx = BN_new();
+	gy = BN_new();
+	pubx = BN_new();
+	puby = BN_new();
+	n = BN_new();
+	priv = BN_new();
+
+ // 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);
+	
+
+	/* base point (generator) G */
+	BN_hex2bn(&gx,   "46E3775ECE21B0898D39BEA57050D422A0AF989E497962BAEE2CB17E0A28D5360D5476B8DC966443E37A14F1AEF37742");
+	BN_hex2bn(&gy,   "7C8E741D2C34F4478E325469CD491603D807222C9C4AC09DDB2B31B3CE3F7CC191B3580079932BC6BEF70BE27604F65E");
+
+	/* inverse of public key */
+	BN_hex2bn(&pubx, "5D8DBE75198015EC41C45AAB6143542EB098F6A5CC9CE4178A1B8A1E7ABBB5BC64DF64FAF6177DC1B0988AB00BA94BF8");
+	BN_hex2bn(&puby, "23A2909A0B4803C89F910C7191758B48746CEA4D5FF07667444ACDB9512080DBCA55E6EBF30433672B894F44ACE92BFA");
+
+ // Computed data
+	/* order of G - computed in 18 hours using a P3-450 */
+	BN_hex2bn(&n,    "DB6B4C58EFBAFD");
+
+	/* THE private key  - computed in 10 hours using a P3-450 */
+	BN_hex2bn(&priv, "565B0DFF8496C8");
+
+ // Calculation
+	EC_GROUP *ec = EC_GROUP_new_curve_GFp(p, a, b, ctx);
+	EC_POINT *g = EC_POINT_new(ec);
+	EC_POINT_set_affine_coordinates_GFp(ec, g, gx, gy, ctx);
+	EC_POINT *pub = EC_POINT_new(ec);
+	EC_POINT_set_affine_coordinates_GFp(ec, pub, pubx, puby, ctx);
+	
+	unsigned char pkey[26];
+	unsigned long pid[1];
+	pid[0] = 640000000 << 1; /* <- change */
+
+ // generate a key
+	generate(pkey, ec, g, n, priv, pid);
+	print_product_key(pkey); printf("\n\n");
+
+ // verify the key
+	verify(ec, g, pub, (char*)pkey);
+	
+ // Cleanup
+	BN_CTX_free(ctx);
+	
+	return 0;
 }