修改scrypt算法, 保证结果和scrypt-js一致

cocos/scrypt/native-crypto.cpp

@@ -7,7 +7,8 @@
 
 #include "native-crypto.h"
 
-extern "C" {
+extern "C"
+{
 #include "crypto_scrypt.h"
 #include "base64.h"
 }
@@ -18,40 +19,54 @@ extern "C" {
 #include <random>
 #include <sstream>
 
+using namespace std;
+
 int fast_crypto_scrypt(const uint8_t *passwd, size_t passwdlen, const uint8_t *salt, size_t saltlen,
                        uint64_t N,
-                       uint32_t r, uint32_t p, uint8_t *buf, size_t buflen) {
+                       uint32_t r, uint32_t p, uint8_t *buf, size_t buflen)
+{
     return crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen);
 }
 
-int crypto_scrypt_base64(std::string *password, std::string *salt, uint64_t N,
-                         uint32_t r, uint32_t p, size_t size, std::string *value) {
-    char *szPassword = const_cast<char *>(password->c_str());
-    size_t passwordBufSize = Base64decode_len(szPassword);
-    char *szSalt = const_cast<char *>(salt->c_str());
-    size_t saltBufSize = Base64decode_len(szSalt);
-    auto *passwordBuf = (unsigned char *) malloc(sizeof(char) * passwordBufSize);
-    auto *saltBuf = (unsigned char *) malloc(sizeof(char) * saltBufSize);
+vector<uint8_t> hexToBytes(const string &hex)
+{
+    vector<uint8_t> bytes;
+    for (unsigned int i = 0; i < hex.length(); i += 2)
+    {
+        string byteString = hex.substr(i, 2);
+        uint8_t byte = (uint8_t)strtol(byteString.c_str(), nullptr, 16);
+        printf("%hhu ", byte);
+        bytes.push_back(byte);
+    }
+    return bytes;
+}
 
-    int passwordBufLen = Base64decode((char *) passwordBuf, szPassword);
-    int saltBufLen = Base64decode((char *) saltBuf, szSalt);
-    auto *buffer = (uint8_t *) malloc(sizeof(char) * size);
-    int result = fast_crypto_scrypt((uint8_t *) passwordBuf, passwordBufLen, (uint8_t *) saltBuf,
-                                    saltBufLen, N, r, p, buffer, size);
+int crypto_scrypt_base64(std::string *password, std::string *salt, uint64_t N,
+                         uint32_t r, uint32_t p, size_t size, std::string *value)
+{
+    uint8_t *passwordBuf = (uint8_t *)password->c_str();
+    size_t passLen = password->length();
+
+    std::vector<uint8_t> bytes = hexToBytes(salt->c_str());
+    size_t saltBufLen = bytes.size();
+    uint8_t *saltBuf = bytes.data();
+
+    uint8_t *buffer = (uint8_t *)malloc(sizeof(char) * size);
+
+    int result = crypto_scrypt((uint8_t *)passwordBuf, passLen, (uint8_t *)saltBuf,
+                               saltBufLen, N, r, p, buffer, size);
     int b64encSize = Base64encode_len(size);
 
-    char *szB64Encoded = (char *) malloc(sizeof(char) * b64encSize);
-    int b64encLen = Base64encode(szB64Encoded, (const char *) buffer, size);
+    char *szB64Encoded = (char *)malloc(sizeof(char) * b64encSize);
+    Base64encode(szB64Encoded, (const char *)buffer, size);
     value->assign(szB64Encoded);
     free(buffer);
     free(szB64Encoded);
-    free(passwordBuf);
-    free(saltBuf);
     return result;
 }
 
-
-void get_uuid(char *buffer) {
+void get_uuid(char *buffer)
+{
     static std::random_device dev;
     static std::mt19937 rng(dev());
 
@@ -62,19 +77,24 @@ void get_uuid(char *buffer) {
                          false, false, false, false, false};
 
     std::stringstream res;
-    for (bool i : dash) {
-        if (i) res << "-";
+    for (bool i : dash)
+    {
+        if (i)
+            res << "-";
         res << v[dist(rng)];
         res << v[dist(rng)];
     }
     res >> buffer;
 }
 
-void uuid_v4(char *buffer) {
+void uuid_v4(char *buffer)
+{
     int rc = uuid_v4_gen(buffer);
-    if (rc == 1) {
-    } else {
+    if (rc == 1)
+    {
+    }
+    else
+    {
         get_uuid(buffer);
     }
 }
-