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Complete rewrite of XP Algorithm (w/ comments). Now fully optimized and readable

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This commit is contained in:
Andrew
2023-06-04 22:01:09 +03:00
parent 21e31fd1b6
commit 9812529903
4 changed files with 188 additions and 180 deletions
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40
src/header.h
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@@ -28,20 +28,26 @@
#include <openssl/bn.h>
#include <openssl/ec.h>
#include <openssl/sha.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
// Algorithm macros
#define PK_LENGTH 25
#define NULL_TERMINATOR 1
#define PK_LENGTH 25
#define NULL_TERMINATOR 1
#define FIELD_BITS 384
#define FIELD_BYTES 48
#define FIELD_BITS_2003 512
#define FIELD_BYTES_2003 64
#define FIELD_BITS 384
#define FIELD_BYTES 48
#define FIELD_BITS_2003 512
#define FIELD_BYTES_2003 64
#define NEXTSNBITS(field, n, offset) (((QWORD)field >> offset) & ((1ULL << (n)) - 1))
#define SHA_MSG_LENGTH_XP (4 + 2 * FIELD_BYTES)
#define NEXTSNBITS(field, n, offset) (((QWORD)field >> offset) & ((1ULL << (n)) - 1))
#define FIRSTNBITS(field, n) NEXTSNBITS(field, n, 0)
#define BYDWORD(n) (n[0] | n[1] << 8 | n[2] << 16 | n[3] << 24)
#define BITMASK(n) ((1ULL << n) - 1)
// Confirmation ID generator constants
#define SUCCESS 0
#define ERR_TOO_SHORT 1
@@ -62,7 +68,9 @@ typedef uint64_t QWORD;
extern char pCharset[];
// util.cpp
int BN_bn2lebin(const BIGNUM *a, unsigned char *to, int tolen); // Hello OpenSSL developers, please tell me, where is this function at?
void endian(BYTE *data, int length);
EC_GROUP *initializeEllipticCurve(
std::string pSel,
std::string aSel,
@@ -71,8 +79,8 @@ EC_GROUP *initializeEllipticCurve(
std::string generatorYSel,
std::string publicKeyXSel,
std::string publicKeyYSel,
EC_POINT *&genPoint,
EC_POINT *&pubPoint
EC_POINT *&genPoint,
EC_POINT *&pubPoint
);
// key.cpp
@@ -98,18 +106,18 @@ void showHelp(char *argv[]);
// xp.cpp
bool verifyXPKey(
EC_GROUP *eCurve,
EC_POINT *generator,
EC_POINT *basePoint,
EC_POINT *publicKey,
char (&cdKey)[25]
char (&cdKey)[25]
);
void generateXPKey(
EC_GROUP *eCurve,
EC_POINT *generator,
BIGNUM *order,
BIGNUM *privateKey,
DWORD pRaw,
char (&cdKey)[25]
EC_POINT *basePoint,
BIGNUM *genOrder,
BIGNUM *privateKey,
DWORD pSerial,
char (&cdKey)[25]
);
// server.cpp