我正在尝试使用静态 RSA 公钥来加密会话生成的 AES 密钥，然后用于加密密码，并且随机生成的 AES 会话密钥输入 RSA 加密密码有以下错误消息：
TypeError: Failed to execute 'encrypt' on 'SubtleCrypto': The provided value is not of type '(ArrayBuffer or ArrayBufferView)'
我尝试将随机生成的 AES 密钥数据（通过导出）转换为 Uint8Array 缓冲区，然后再将其转换为 ArrayBuffer 以在 RSA 加密代码中使用，但不知何故它不起作用。
在@pedrofb 的帮助下设法转换数组缓冲区字段后，我尝试将所有结果拉到一个统一字段中，以便集中存储处理后的输出，这会产生不一致的输出。
这是修改后的源代码，它修复了失败的执行，但产生了另一个问题，即在 HTML“输入”字段中没有一致的输出值。HTML 输入字段仅显示在所有操作中收集的部分数据。我正在尝试使用“隐藏”字段作为一种收集器来收集所有已处理的结果，但是当我将处理后的结果转移到非隐藏字段时，它只显示为部分。
<html>
<body>
<script>
var secBuff = null;
function encryptPassword(rsaPublicKeyModulusHex, password) {
var enc = new TextEncoder();
var iv = window.crypto.getRandomValues(new Uint8Array(16));
document.getElementById("a").value = buff2hex(iv);
var b64UrlPEM = h2b64("30820122300d06092a864886f70d01010105000382010f003082010a0282010100" + rsaPublicKeyModulusHex + "0203010001", true);
var binaryDerStr = window.atob(b64UrlPEM);
var binDERData = str2ab(binaryDerStr);
// Generate session AES key and encrypt password/pin
window.crypto.subtle.generateKey(
{
name: "AES-CBC",
length: 256,
},
true,
["encrypt", "decrypt"]
)
.then(function(key){
// Export AES Session Key bytes
window.crypto.subtle.exportKey("raw", key)
.then(function(data){
// Convert AES Session secret key to buffer object
secBuff = typedArrayToBuffer(new Uint8Array(data));
// Import RSA Public Modulus
window.crypto.subtle.importKey(
"spki",
binDERData,
{
name: "RSA-OAEP",
hash: "SHA-256"
},
false,
["encrypt"]
)
.then(function(publicKey){
// Encrypt AES session key with public key
window.crypto.subtle.encrypt(
{
name: "RSA-OAEP"
},
publicKey, // from above imported RSA Public Key
secBuff // ArrayBuffer of session secret key
)
.then(function(encrypted){
var pre = document.getElementById("a").value;
document.getElementById("a").value = pre + buff2hex(new Uint8Array(encrypted));
})
.catch(function(err){
console.error(err);
});
})
.catch(function(err){
console.error(err);
});
})
.catch(function(err){
console.error(err);
});
// Encrypt plaintext from somewhere
window.crypto.subtle.encrypt(
{
name: "AES-CBC",
iv
},
key,
enc.encode(password)
)
.then(function(encrypted){
var pre = document.getElementById("a").value;
document.getElementById("a").value = pre + buff2hex(new Uint8Array(encrypted));
})
.catch(function(err){
console.error(err);
});
})
.catch(function(err){
console.error(err);
});
}
function h2b64(hex, url) {
var output = btoa(hex.match(/\w{2}/g).map(function(a) {
return String.fromCharCode(parseInt(a, 16));
}).join(""));
if (url) {
output = output.replace(/=/g,"");
}
return output;
}
function str2ab(str) {
const buf = new ArrayBuffer(str.length);
const bufView = new Uint8Array(buf);
for (let i = 0, strLen = str.length; i < strLen; i++) {
bufView[i] = str.charCodeAt(i);
}
return buf;
}
function typedArrayToBuffer(array) {
return array.buffer.slice(array.byteOffset, array.byteLength + array.byteOffset);
}
function buff2hex(buffer) {
return Array.prototype.map.call(new Uint8Array(buffer), x => ('00' + x.toString(16)).slice(-2)).join('');
}
</script>
<input type="hidden" id="a">
</input>
<textarea rows="4" cols="50" id="b">
</textarea>
<script>
var blob = encryptPassword('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', 'abc');
document.getElementById("b").value = document.getElementById("a").value;
</script>
</body>
</html>
以下是存档出现问题的原始源代码：
<html>
<body onload="encryptPassword('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', 'abc')">
<script>
var secBuff = null;
function encryptPassword(rsaPublicKeyModulusHex, password) {
var enc = new TextEncoder();
var iv = window.crypto.getRandomValues(new Uint8Array(16));
var b64UrlPEM = h2b64("30820122300d06092a864886f70d01010105000382010f003082010a0282010100" + rsaPublicKeyModulusHex + "0203010001", true);
var binaryDerStr = window.atob(b64UrlPEM);
var binDERData = str2ab(binaryDerStr);
// Generate session AES key and encrypt password/pin
window.crypto.subtle.generateKey(
{
name: "AES-CBC",
length: 256,
},
true,
["encrypt", "decrypt"]
)
.then(function(key){
// Export AES Session Key bytes
window.crypto.subtle.exportKey("raw", key)
.then(function(data){
// Convert AES Session secret key to buffer object
secBuff = typedArrayToBuffer(new Uint8Array(data));
})
.catch(function(err){
console.error(err);
});
// Encrypt plaintext from somewhere
window.crypto.subtle.encrypt(
{
name: "AES-CBC",
iv
},
key,
enc.encode(password)
)
.then(function(encrypted){
console.log("IV: " + iv);
console.log("Ciphertext: " + new Uint8Array(encrypted));
})
.catch(function(err){
console.error(err);
});
})
.catch(function(err){
console.error(err);
});
// Import RSA Public Modulus
window.crypto.subtle.importKey(
"spki",
binDERData,
{
name: "RSA-OAEP",
hash: "SHA-256"
},
false,
["encrypt"]
)
.then(function(publicKey){
// Encrypt AES session key with public key
window.crypto.subtle.encrypt(
{
name: "RSA-OAEP"
},
publicKey, // from above imported RSA Public Key
secBuff // ArrayBuffer of session secret key
)
.then(function(encrypted){
console.log(new Uint8Array(encrypted));
})
.catch(function(err){
console.error(err);
});
})
.catch(function(err){
console.error(err);
});
}
function h2b64(hex, url) {
var output = btoa(hex.match(/\w{2}/g).map(function(a) {
return String.fromCharCode(parseInt(a, 16));
}).join(""));
if (url) {
output = output.replace(/=/g,"");
}
return output;
}
function str2ab(str) {
const buf = new ArrayBuffer(str.length);
const bufView = new Uint8Array(buf);
for (let i = 0, strLen = str.length; i < strLen; i++) {
bufView[i] = str.charCodeAt(i);
}
return buf;
}
function typedArrayToBuffer(array) {
if (array.constructor === Uint8Array) {
console.log("Uint8Array input: " + array);
console.log(array.byteLength);
} else {
console.log("Uint8Array input NOT detected ...");
}
return array.buffer.slice(array.byteOffset, array.byteLength + array.byteOffset);
}
</script>
</body>
</html>