如何使用CryptoJS AES解密消息。 我有一个有效的Ruby示例

我可以用Ruby解密AES加密消息，如下所示：

require 'openssl' require 'base64' data = "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" key = "2e35f242a46d67eeb74aabc37d5e5d05" aes = OpenSSL::Cipher::Cipher.new('aes-128-cbc') aes.decrypt aes.key = key.scan(/../).collect{ |x| x.hex }.pack('c*') aes.iv = Base64.decode64(data)[0...16] puts aes.update(Base64.decode64(data)[16..-1]) + aes.final # => JSON data... 

作为CryptoJS的新手，我没有把工作替代方案放在一起。 这是我到目前为止所做的：

 data = "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"; key = "2e35f242a46d67eeb74aabc37d5e5d05"; CryptoJS.AES.decrypt(atob(data).substring(16), key, { iv: atob(cipher).substring(0, 16), mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 }); 

CryptoJS是否以某种不同的方式期望数据，密钥和初始化向量？ 据我所知，IV是数据中的前16个字节。

Answer 1

这似乎对我有用（将解码后的字符串写入控制台）：

 data = "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"; key = "2e35f242a46d67eeb74aabc37d5e5d05"; // Decode the base64 data so we can separate iv and crypt text. var rawData = atob(data); var iv = btoa(rawData.substring(0,16)); var crypttext = btoa(rawData.substring(16)); // Decrypt... var plaintextArray = CryptoJS.AES.decrypt( { ciphertext: CryptoJS.enc.Base64.parse(crypttext), salt: "" }, CryptoJS.enc.Hex.parse(key), { iv: CryptoJS.enc.Base64.parse(iv) } ); // Convert hex string to ASCII. // See https://stackoverflow.com/questions/11889329/word-array-to-string function hex2a(hex) { var str = ''; for (var i = 0; i < hex.length; i += 2) str += String.fromCharCode(parseInt(hex.substr(i, 2), 16)); return str; } console.log(hex2a(plaintextArray.toString())); 

重要的一点是在输入中指定无盐，并将密钥作为WordArray传递，如jlvaquero所述。 可能会有一些效率提升，例如我猜测将字符串转换为WordArray比转到base64并返回更容易，但至少它成功解码。 我将hexOa函数从StackOverflow问题Word Array提升为String 。

编辑：我想出了如何使用CryptoJS将字符串转换为WordArrays，反之亦然，因此不需要额外的base64编码/解码和hex到ASCII的function。 事实certificate，不需要指定salt属性。 这更紧凑，更高效：

 data = "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"; key = "2e35f242a46d67eeb74aabc37d5e5d05"; // Decode the base64 data so we can separate iv and crypt text. var rawData = atob(data); var iv = rawData.substring(0,16); var crypttext = rawData.substring(16); // Decrypt... var plaintextArray = CryptoJS.AES.decrypt( { ciphertext: CryptoJS.enc.Latin1.parse(crypttext) }, CryptoJS.enc.Hex.parse(key), { iv: CryptoJS.enc.Latin1.parse(iv) } ); console.log(CryptoJS.enc.Latin1.stringify(plaintextArray)); 

Answer 2

这适用于使用javascript解密。

  var decrypted = CryptoJS.AES.decrypt(data,key).toString(CryptoJS.enc.Utf8); 

猜猜我有点迟到了。

Answer 3

对于另一个用户提供的hex2a，如果ascii代码超过128（即文本包含中文等），它可能无法正常工作

您可以使用以下命令返回正确的unicode

 function hex2a(hex) { var str = ''; for (var i = 0; i < hex.length; i += 2){ var dec = parseInt(hex.substr(i, 2), 16); character = String.fromCharCode(dec); if (dec > 127) character = "%"+hex.substr(i,2); str += character; } return decodeURI(str); } 

Answer 4

  var key = CryptoJS.enc.Utf8.parse('8080808080808080'); var iv = CryptoJS.enc.Utf8.parse('8080808080808080'); var _enid = CryptoJS.AES.decrypt(data, key, { keySize: 128 / 8, iv: iv, mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 }).toString(CryptoJS.enc.Utf8); return _enid;