Nytro Posted July 9, 2014 Report Posted July 9, 2014 /* 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 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 <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_BYTES 48unsigned char cset[] = "BCDFGHJKMPQRTVWXY2346789";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);}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;}// Reverse datastatic 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; }}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);}void base24(unsigned char *c, unsigned long *x){ 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 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);}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);}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('-'); }}void verify(EC_GROUP *ec, EC_POINT *generator, EC_POINT *public_key, char *cdkey){ unsigned char key[25]; int i, j, k; 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);}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);}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;}Sursa: http://antiwpa.planet-dl.org/Other/tmp/xpkey-0.03.cpp.txt Quote
