AES-256 CBC加密在Ruby / PHP中成功，但使用CryptoJS解密失败

本文介绍了AES-256 CBC加密在Ruby / PHP中成功，但使用CryptoJS解密失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我可以使用AES-256 CBC加密PHP或Ruby中的字符串（使用gem 对称-encryption ），并得到相同的结果。 <？php openssl_encrypt（'Hello！'，'aes-256-cbc'，'1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF'，0，'1234567890ABCDEF1234567890ABCDEF'）; // => 'BAd5fmmMTvRE4Ohvf3GpCw ==' ruby_cipher = SymmetricEncryption :: Cipher.new（key：1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF，iv：1234567890ABCDEF1234567890ABCDEF，cipher_name：'aes-256-cbc'） ruby​​_cipher.encrypt（Hello！）＃=> BAd5fmmMTvRE4Ohvf3GpCw == 但是我无法用Javascript解密相同的字符串，使用 CryptoJS 。据我可以解释文档：Check out my failed attempt in my jsfiddle or here:var key = CryptoJS.enc.Hex.parse("1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF");var iv = CryptoJS.enc.Hex.parse"1234567890ABCDEF1234567890ABCDEF");var ruby_encrypted = "BAd5fmmMTvRE4Ohvf3GpCw=="; // Output from the Ruby encryptionvar js_encrypted = CryptoJS.AES.encrypt("Hello!", key, { iv: iv }); // Test to confirm that CryptoJS can decrypt its own encryptedvar ruby_decrypted = CryptoJS.AES.decrypt(ruby_encrypted, key, { iv: iv }); // Object { words: Array[4], sigBytes: -129 }var js_decrypted = CryptoJS.AES.decrypt(js_encrypted, key, { iv: iv }); // Object { words: Array[4], sigBytes: 6 }console.log(ruby_decrypted.toString(CryptoJS.enc.Utf8)); //console.log(js_decrypted.toString(CryptoJS.enc.Utf8)); // Hello!Any idea why the decryption fails? 解决方案 PHP and Ruby take the key and IV as a binary string. They don't assume that it is Hex-encoded which means that only the first 32 characters of your 64 character key will be used. OpenSSL silently uses only the number of bytes it needs and doesn't throw an error (which it should in this case).You probably want something like this in CryptoJS:var key = CryptoJS.enc.Utf8.parse("1234567890ABCDEF1234567890ABCDEF");var iv = CryptoJS.enc.Utf8.parse("1234567890ABCDEF");So, although this key has 256 bits in it, the security is actually only 128 bits, because each character has only 4 bit in a Hex-encoded string. 这篇关于AES-256 CBC加密在Ruby / PHP中成功，但使用CryptoJS解密失败的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！