I m 试图加密档案,将其上载到云层,并用Node.js诉21.6.2在当地加以加密。 不幸的是,我遇到麻烦,难以使加密发挥作用。 能够产生关键和加密的Im,但脱轨在据称是ArrayBuffer的四处失败,但应当如此。 是否有更好的办法确保四舍五入为缓冲,以便我能够适当加密档案? 我已注意到,加密数据物体没有定义,我不敢确定这一问题。 没有人对我做错做什么有什么想法? 我发现的错误如下:

node:internal/webidl:181
  const err = new TypeError(message);
              ^

TypeError: Failed to execute  decrypt  on  SubtleCrypto : 3rd argument is not instance of ArrayBuffer, Buffer, TypedArray, or DataView.
    at codedTypeError (node:internal/webidl:181:15)
    at makeException (node:internal/webidl:190:10)
    at converters.BufferSource (node:internal/crypto/webidl:206:11)
    at SubtleCrypto.decrypt (node:internal/crypto/webcrypto:961:28)
    at decrypt (/Users/me/code/encryptiontest/aes/aes.js:31:43)
    at testEncryptionDecryption (/Users/me/code/encryptiontest/aes/aes.js:52:29) {
  code:  ERR_INVALID_ARG_TYPE 
}

我的守则是:

const { subtle } = globalThis.crypto;

async function generateAesKey(length = 256) {
    const key = await subtle.generateKey({
        name:  AES-CBC ,
        length,
    }, true, [ encrypt ,  decrypt ]);

    return key;
}

async function aesEncrypt(plaintext) {
    const ec = new TextEncoder();
    const key = await generateAesKey();
    const iv = crypto.getRandomValues(new Uint8Array(16));

    const ciphertext = await crypto.subtle.encrypt({
        name:  AES-CBC ,
        iv,
    }, key, ec.encode(plaintext));

    return {
        key,
        iv,
        ciphertext,
    };
}

async function decrypt(ciphertext, key, iv) {
    const dec = new TextDecoder();
    const plaintext = await crypto.subtle.decrypt({
        name:  AES-CBC ,
        iv,
    }, key, ciphertext);

    return dec.decode(plaintext);
}

// takes Uint8Array and returns ArrayBuffer
function typedArrayToBuffer(array) {
    return array.buffer.slice(array.byteOffset, array.byteLength + array.byteOffset);
}


async function testEncryptionDecryption() {
    const data = "Hello, world!";
    console.log("ENCRYPTING DATA");
    const { key, iv, encrypted } = await aesEncrypt(data);
    console.log(iv);
    console.log("DECRYPTING DATA");
    console.log(typeof iv.buffer);
    const decrypted = await decrypt(encrypted, key, typedArrayToBuffer(iv));
    console.log("Original:", data);
    console.log("Decrypted:", decrypted);
}

testEncryptionDecryption();

我利用四、四、四、四、四、四、四、五。 加密中的斜体,但我对四分五裂的错误不是ArrayBuffer、Buffer、PedArray或数据观察。