javascript - 使用 CryptoJS 的 Java SHA-1 到 javascript

Question

我有这样一个用Java写的生成密码的代码

        MessageDigest messageDigestPassword = MessageDigest.getInstance("SHA1");
        messageDigestPassword .reset();
        byte[] password = "password".getBytes();
        messageDigestPassword .update(password);
        byte[] encryptedPassword = messageDigestPassword .digest();

        String date = "2019-10-22T11:33:13.393Z";
        byte[] dateBytes = date.getBytes(StandardCharsets.UTF_8);

        int offset = 0;
        byte[] outputBytes = new byte[dateBytes.length + encryptedPassword .length];
        System.arraycopy(dateBytes, 0, outputBytes, offset, dateBytes.length);
        offset += dateBytes.length;
        System.arraycopy(encryptedPassword , 0, outputBytes, offset, encryptedPassword .length);

        MessageDigest finalMessageDigeset = MessageDigest.getInstance("SHA-1");
        finalMessageDigeset.reset();
        finalMessageDigeset.update(outputBytes);
        byte[] finalPasswordBytes= finalMessageDigeset .digest();

        String finalBase64Password = new String(Base64.encode(finalPasswordBytes));

我正在尝试将其重写为 JavaScript，以便在 postman 中使用它 - CryptoJS 到目前为止我有:

function wordArrayToByteArray(wordArray, length) {
if (wordArray.hasOwnProperty("sigBytes") && 
wordArray.hasOwnProperty("words")) {
    length = wordArray.sigBytes;
    wordArray = wordArray.words;
}

var result = [],
    bytes,
    i = 0;
while (length > 0) {
    bytes = wordToByteArray(wordArray[i], Math.min(4, length));
    length -= bytes.length;
    result.push(bytes);
    i++;
}
return [].concat.apply([], result);
}

function stringToBytes ( str ) {
var ch, st, re = [];
for (var i = 0; i < str.length; i++ ) {
ch = str.charCodeAt(i);  // get char 
st = [];                 // set up "stack"
do {
  st.push( ch & 0xFF );  // push byte to stack
  ch = ch >> 8;          // shift value down by 1 byte
}  
while ( ch );
// add stack contents to result
// done because chars have "wrong" endianness
re = re.concat( st.reverse() );
}
// return an array of bytes
return re;
}



var dateFixed = "2019-10-22T11:33:13.393Z";
var fixedDateBytes = stringToBytes(dateFixed);
var sha1Password= CryptoJS.SHA1("password");
console.log("sha1Password",sha1Password.toString(CryptoJS.enc.Hex));

var sha1PasswordBytes= wordArrayToByteArray(sha1Password, 20);

var concatedBytes= fixedDateBytes.concat(sha1PasswordBytes);

var finalShaPassWords= CryptoJS.SHA1(concatedBytes); 
console.log("finalShaPassWords",finalShaPassWords.toString(CryptoJS.enc.Hex));

console.log("finalShaPassWords",finalShaPassWords.toString(CryptoJS.enc.Base64));

然而不幸的是，用这两种语言编写的 Base64 表示不匹配。

我检查过日期的字节数是相等的。来自散列密码的字节不是。因此在 JavaScript 中 concat 失败后的散列。

我已经检查了第一个密码散列和生成的字节，它们都是相同的。所以我猜测行 var sha1PasswordBytes= wordArrayToByteArray(sha1Password, 20); 导致行 var finalShaPassWords= CryptoJS.SHA1(concatedBytes); 返回错误值。

谁能告诉我哪里出了问题？也许应该写成不同的？

Answer 1

既然你正在使用 CryptoJS，你也可以使用 CryptoJS encoders和 WordArray#concat-method ，这大大简化了代码:

var CryptoJS = require("crypto-js");

// Input
var inPwd = "password";
var inDate = "2019-10-22T11:33:13.393Z";

// Processing
var pwdHash = CryptoJS.SHA1(inPwd);                                         // hash and convert to WordArray
var date = CryptoJS.enc.Utf8.parse(inDate);                                 // convert to WordArray
var joinedData = date.clone().concat(pwdHash);                              // join date and hashed password
var joinedDataHash = CryptoJS.SHA1(joinedData);                             // hash joined data
var joinedDataHashB64 = CryptoJS.enc.Base64.stringify(joinedDataHash);      // convert to Base64 string

// Output
console.log("Result: " + joinedDataHashB64 );                              // Output: D235TBTZMfpSyB/CDl5MHAjH5fI=

此代码的输出与 Java 代码的输出相同:D235TBTZMfpSyB/CDl5MHAjH5fI=