first commit

2026-02-17 13:06:23 +08:00
commit 7cbd3d061d
349 changed files with 126558 additions and 0 deletions
@@ -0,0 +1,129 @@
+package cecdh
+
+/*
+#cgo windows CFLAGS: -I./openssl/include -DCGO_OS_WINDOWS=1
+#cgo darwin CFLAGS: -I./openssl/include -DCGO_OS_DARWIN=1
+#cgo linux CFLAGS: -I./openssl/include -DCGO_OS_LINUX=1
+#cgo windows LDFLAGS: -L./bin -lcrypto_windows -lstdc++
+#cgo darwin LDFLAGS: -L./bin -lcrypto_darwin -lstdc++
+#cgo linux LDFLAGS: -L./bin -lcrypto_linux -lstdc++
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/x509.h>
+#include <openssl/ec.h>
+#include <openssl/bn.h>
+#include <openssl/cms.h>
+#include <openssl/asn1t.h>
+#include <openssl/md5.h>
+
+int GenerateECKey(int nid, char* pubKey, char* priKey)
+{
+    char buf[68] = {0};
+
+    EC_KEY* pKey = EC_KEY_new_by_curve_name(nid);
+    if(pKey == NULL) { return 0;}
+    const EC_GROUP* pGroup = EC_KEY_get0_group(pKey);
+    if(pGroup == NULL) { EC_KEY_free(pKey); return 0;}
+
+    int ret = EC_KEY_generate_key(pKey);
+    if(ret == 0) { EC_KEY_free(pKey); return 0;}
+
+    const EC_POINT* pPoint = EC_KEY_get0_public_key(pKey);
+    if(pPoint == NULL) { EC_KEY_free(pKey); return 0;}
+
+    size_t retSize = EC_POINT_point2oct(pGroup, pPoint, 4, (unsigned char *)buf, 64, 0);
+    memcpy(pubKey, buf, retSize);
+
+    unsigned char* outPriKey = NULL;
+    retSize = i2d_ECPrivateKey(pKey, &outPriKey);
+    memcpy(priKey, outPriKey, retSize);
+    free(outPriKey);
+
+    return retSize;
+}
+
+int ComputerECCKeyMD5(char* pub, int pubLen, char* pri, int priLen, char* eccKey)
+{
+    EC_KEY* pKey = NULL;
+    d2i_ECPrivateKey(&pKey, (const unsigned char **)&pri, priLen);
+    if(pKey == NULL) { return 0;}
+
+    char outBuf[64] = {0};
+    const EC_GROUP* pGroup = EC_KEY_get0_group(pKey);
+    if(pGroup == NULL) { EC_KEY_free(pKey); return 0;}
+    EC_POINT* pPoint = EC_POINT_new(pGroup);
+    if(pPoint == NULL) { EC_KEY_free(pKey); return 0;}
+    int ret = EC_POINT_oct2point(pGroup, pPoint, (const unsigned char *)pub, pubLen, NULL);
+    if(ret != 1) { EC_KEY_free(pKey); return 0;}
+    int retLen = ECDH_compute_key(outBuf, 64, pPoint, pKey, NULL);
+    if(retLen <= 0) { return 0;}
+    MD5((const unsigned char *)outBuf, retLen, (unsigned char *)eccKey);
+
+    return retLen;
+}
+*/
+/*
+import "C"
+import (
+	"crypto/elliptic"
+	"crypto/md5"
+	"crypto/rand"
+	"unsafe"
+)
+
+func getCharPointer(val []byte) *C.char {
+	return (*C.char)(unsafe.Pointer(&val[0]))
+}
+
+//GenerateEccKey GenerateEccKey2
+func GenerateEccKey() ([]byte, []byte) {
+	pubKeyBuf := make([]byte, 57)
+	priKeyBuf := make([]byte, 106)
+	cPubKeyBuf := getCharPointer(pubKeyBuf)
+	cPriKeyBuf := getCharPointer(priKeyBuf)
+	//https://tools.ietf.org/html/rfc5480 Sect409k1.nid = 731
+	C.GenerateECKey(713, cPubKeyBuf, cPriKeyBuf)
+	return pubKeyBuf, priKeyBuf
+}
+
+//ComputerECCKeyMD5 ComputerECCKeyMD52
+func ComputerECCKeyMD5(ecPubKey []byte, ecPriKey []byte) []byte {
+	cEcPubKey := getCharPointer(ecPubKey)
+	cEcPriKey := getCharPointer(ecPriKey)
+	outAesKey := make([]byte, 16)
+	cOutAesKey := getCharPointer(outAesKey)
+	cPubKeyLen := C.int(len(ecPubKey))
+	cPriKeyLen := C.int(len(ecPriKey))
+	C.ComputerECCKeyMD5(cEcPubKey, cPubKeyLen, cEcPriKey, cPriKeyLen, cOutAesKey)
+
+	return outAesKey
+}
+
+
+//GenerateEccKey GenerateEccKey2
+func GenerateEccKey() ([]byte, []byte) {
+	newEllipticECDH := NewEllipticECDH(elliptic.P224())
+	priKeyBuf, pubKeyBuf, err := newEllipticECDH.GenerateKey(rand.Reader)
+	if err != nil {
+		return []byte{}, []byte{}
+	}
+
+	return pubKeyBuf, priKeyBuf
+}
+
+//ComputerECCKeyMD5 ComputerECCKeyMD52
+func ComputerECCKeyMD5(ecPubKey []byte, ecPriKey []byte) []byte {
+	e := NewEllipticECDH(elliptic.P224())
+	srvPubKey, ok := e.Unmarshal(ecPubKey)
+	if !ok {
+		return []byte{}
+	}
+	pwd, err := e.GenerateSharedSecret(ecPriKey, srvPubKey)
+	if err != nil {
+		return []byte{}
+	}
+	ctx := md5.New()
+	_, _ = ctx.Write(pwd)
+	return ctx.Sum(nil)
+}*/