我正在尝试使用 Web Crypto API ( http://www.w3.org/TR/WebCryptoAPI/#SP800-38B ) 在 Java 和 JavaScript 之间进行加密/解密。我在这个论坛上找到了有用的信息,但现在我被困住了......
爪哇:
String charset = "UTF-8";
String secret = "hallo1234567890x";
String salt = "fqpq6V_Vggn-fR_EiEKFBA";
byte [] iv = "1111111111111111".getBytes(charset);
// Get Key
byte[] key = (salt).getBytes(charset);
key = Arrays.copyOf(key, 16);
// Generate specs
SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");
// Instantiate cipher
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, new IvParameterSpec(iv));
byte[] encrypted = cipher.doFinal((secret).getBytes());
//output:
System.out.print("byte array: ");
for(int i=0; i<encrypted.length; i++){
System.out.print(encrypted[i] + "\t");
}
System.out.println("");
System.out.println("encrypted string Base64: " + new Base64().encodeAsString(encrypted));
输出:
byte array: -116 101 -89 89 33 8 -42 77 -82 79 -39 38 112 68 44 16
encrypted string Base64: jGWnWSEI1k2uT9kmcEQsEA==
JavaScript:
var my_key = "fqpq6V_Vggn-fR_EiEKFBA";
var my_counter = new Uint8Array(16);
for(var i=0;i<16;i++){
my_counter[i] = 1;
}
var my_data = str2ab("hallo1234567890x");
对于 importKey 我使用以下参数:
kty: "oct",
k: my_key,
alg: "A128CBC",
ext: true,
name: "AES-CBC",
对于解密,我使用参数:
name: "AES-CBC",
iv: my_counter,
我得到以下 ArrayBuffer 作为输出:
[213, 168, 98, 252, 218, 52, 221, 67, 4, 31, 93, 40, 60, 199, 161, 64, 145, 92, 95, 160, 158, 47, 212, 189, 56, 180, 27, 45, 122, 169, 133, 181, 61, 5, 26, 240, 135, 108, 251, 239, 209, 214, 86, 141, 171, 96, 175, 188]
与window.btoa(arraybuffer);
它是:"W29iamVjdCBBcnJheUJ1ZmZlcl0="
。
我使用ab2str(buf)
and str2ab(str)
frome:在字符串和 ArrayBuffers 之间转换。
function ab2str(buf) {
return String.fromCharCode.apply(null, new Uint16Array(buf));
}
function str2ab(str) {
var buf = new ArrayBuffer(str.length*2); // 2 bytes for each char
var bufView = new Uint16Array(buf);
for (var i=0, strLen=str.length; i<strLen; i++) {
bufView[i] = str.charCodeAt(i);
}
return buf;
}
缺少什么以使 Java 和 JavaScript 输出相同?