使用window.crypto.subtle API从浏览器解密RSA消息 [英] Decrypt an RSA message from browser with window.crypto.subtle APIs

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本文介绍了使用window.crypto.subtle API从浏览器解密RSA消息的处理方法,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

我正在尝试使用相应的私钥对用公钥编码的RSA 2048位消息进行解码.环境是google chrome,我正在使用window.crypto.subtle API.

我生成了密钥对,并使用openssl工具对消息进行了编码:

# generate keys and put the private one in file private_key.pem
openssl genpkey -algorithm RSA -out private_key.pem -pkeyopt rsa_keygen_bits:2048

# extract public key in file public_key.pem
openssl rsa -pubout -in private_key.pem -out public_key.pem

# encode message input.txt using the public key
openssl rsautl -encrypt -oaep -inkey public_key.pem -pubin -in input.txt -out msg_rsa.enc

# convert the encoded msg in base 64 format
base64 msg_rsa.enc > msg_rsa_64.enc

这是我用来解码消息的javascript代码:

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;
}

async function importPrivateKey(pem) {
    pem = pem.replace( /[\r\n]+/gm, "" );
    // fetch the part of the PEM string between header and footer
    const pemHeader = "-----BEGIN PRIVATE KEY-----";
    const pemFooter = "-----END PRIVATE KEY-----";
    const pemContents = pem.substring(pemHeader.length, pem.length - pemFooter.length);
    // base64 decode the string to get the binary data
    const binaryDerString = window.atob(pemContents);
    // convert from a binary string to an ArrayBuffer
    const binaryDer = str2ab(binaryDerString);

    return window.crypto.subtle.importKey(
      "pkcs8",
      binaryDer,
      {
        name: "RSA-OAEP",
        modulusLength: 2048,
        publicExponent: new Uint8Array([1, 0, 1]),
        hash: "SHA-256",
      },
      true,
      ["decrypt"]
    );
}

async function decryptRSA(_key, ciphertext) {
    let decrypted = await window.crypto.subtle.decrypt(
      {
        name: "RSA-OAEP"
      },
      _key,
      ciphertext
    );
    const dec = new TextDecoder();
    return dec.decode(decrypted);
}

const fromBase64 = base64String => Uint8Array.from(atob(base64String), c => c.charCodeAt(0));

window.onload = init;

async function init() {

    const privateKey = '-----BEGIN PRIVATE KEY-----\
MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQC3jmTi3O1k2YXs\
AM6nNTTIzDq5YWkxYrYb6cpO9eYuzmphgRnVDR6a1YWRXMoCuCfuNXcDGywzudRn\
bBMw0FHKLUqCttVHGpZYu0+0tRR10ubxiz/xnd/aCmRYHcmUNn8Qdh3KU59A9HK5\
HhYFf1vhK8r3fkoO4CjoGo1ROzXyMybUSy+4mSNscUtt5LwrVn48vXvG5i5B4DRT\
nM4cINmutEzA2s5cDt+dzU4Py71fKBRDRIGGn0vdVSoZKbWuhm5WewyRewCk7HFc\
PALCi5/1A7VKDAHUC4FlXmuG2+wzdchEyxMj6oLR7+BkKFQaTmuMM/22cGBjVTVt\
pSr3iDovAgMBAAECggEBAIuTQW+oovNu3IDq1DkdIjgV5AmW4tBkySlMi0OjhBbP\
auEdtDDnOwBtoJU6Q3nx4psmGItKHEBw6+yAp88UeT0NV30x3delhfGO7Trx/s7h\
Qi8lvcfSTqeUA11luSR0lAZGaryw/YX820eccw5XG9yK2ll7tIC/PxvPJOpB5fF2\
XGxGrionTjHDzXJ1OWX0i0aZlNNufInJAHhlt7aT3GiQMKcQs+AUb/+bWxI3Hln8\
KcL13EUlD4pJW8vtTK3gCnQNKKMoPB5Ugqe5BrU8ElkBz+zSKDnVwt5bgjrlucYz\
rKJxWr6/qTRZkzmvkhaJeNzzepfwkFsQ/eHcxYrtuDECgYEA8OXkQ2SqYDZwizCd\
SuVkx2zHm3zXYRSlRtnXYoUdJyTyuZ4k2GvXBrlwRsOJ14emVkHKyR5enmNjwrW5\
dcD2tbBzavcqOYAMiHcKklcS/gWgPx0X5QFHU33vr8u51BQWCz75lxddWNKxVAN/\
cUTugONtS4+EP4dSZhuxHt6RscsCgYEAwxA9QmZrI54hjMkIyqwmviRmIk42S5kk\
OxbhxBbt5qVueLRB092JyGmCR2kYiqdHCYkGFDOE4kni6Bsszq5CSJvhiATFeZeX\
ldFQeZqAiRY2rAd7xD1upMug/cK3ODA8k3k/e72CtyxtBTR01q29SnPx5p/57MrI\
3ogddHlGvK0CgYEA3VqhELwjQh1D9OJK5lM683SlRd7FGdOauyvYmhKu4xU0ZBNI\
0ATnpKoo3R04P+/JjGEQMRXS4794H6ZUMDuLdxAYPiW3ivZ6jbq04BtavEf3I4dc\
OXWfULzbzbFpo9KBHvxS4974S3Hut8AvDqnEbnKML25EmwuBT4oKis8BGVkCgYEA\
nusPDZbFeNou+TUbzYrdcZHUB+TyhTq58s4clxYbMgrbaslozAQ0aavT8Pvle6j2\
zgTth+3FOFr72x+wrJ358I/W+Wrxu7NOU0eZqci/KXCIkDT0l5d5GhewDK3jeYqK\
/5cLqnNmGHfARjpLak9X5V162erBwjIf3nTEkozvnW0CgYB6L1CX3DkTFH3OBcJe\
SvV18RDUfNI8MpUKcpofmwwvgER3GrehSZHRVxVwNbnJOqbh/oiwmmNJieKrFsk9\
EzCRBVWdZByHHYW2js+gCrAp+ghnl1QEAeCU7YTxCJ2fZIAmfB9X4u/7ARtVxnZY\
mOWlm65KUYr5lf2Ws5plL4pCRA==\
-----END PRIVATE KEY-----';

    const ciphertext = 'F6/NwENdUZSl+vrgpWVkyWPQuYaTGDNZPIvj4KmIRHVx4qybxN24LPIgk0Rl84KHcLFadZWCjNpM\
vg3l826OaKZAtwvIp9IxVrMbvtNOymY6A1koKvC9ema92SR4DC9hmTtMxhUB6r3XgACtRLFqMfg+\
zYSHfFqQEGJg3yZ43hfzIq/gCfHPk5sZXASq5WY5b9yd4gRonn5D4OCD6xna/r5ovHfrpO/Fwe8N\
eeY2gqTAdtzvtmOw/HLQhGANejpJYr1IriQbepM7jLjBkJX+uCn38O1MxpQb7s5RXTvGvoEoofWV\
Cq8gNFhgnVFuurdZUiY0bn58UwaVFdwzEfDSUQ==';

    try {
        const key = await importPrivateKey(privateKey);
        const decoded = await decryptRSA(key, fromBase64(ciphertext));
        console.log(decoded);
    } catch(error) {
        console.log(error);
    }
}

运行代码,在window.crypto.subtle.decrypt中我收到了一个异常的消息,消息是"DOMException".

我在做什么错了?

谢谢

解决方案

只有一个缺陷:发布的代码当前使用带有 SHA256 的OAEP.如果将带有 SHA1 的OAEP用作填充,则可以使用发布的密钥对密文进行解密.

此外,函数fromBase64可用于Base64将密钥解码为TypedArray,因此实际上不需要函数str2ab(当然,这不是错误,只是多余的)./p>

 const fromBase64 = base64String => Uint8Array.from(atob(base64String), c => c.charCodeAt(0));
const getPkcs8Der = pkcs8Pem => {
    pkcs8Pem = pkcs8Pem.replace( /[\r\n]+/gm, "" );
    const pkcs8PemHeader = "-----BEGIN PRIVATE KEY-----";
    const pkcs8PemFooter = "-----END PRIVATE KEY-----";
    pkcs8Pem = pkcs8Pem.substring(pkcs8PemHeader.length, pkcs8Pem.length - pkcs8PemFooter.length);
    return fromBase64(pkcs8Pem);	
}		
	 
async function importPrivateKey(pkcs8Pem) {		
    return await window.crypto.subtle.importKey(
        "pkcs8",
        getPkcs8Der(pkcs8Pem),
        {
            name: "RSA-OAEP",
            hash: "SHA-1",          // Replace SHA-256 with SHA-1
        },
        true,
        ["decrypt"]
    );
}

async function decryptRSA(key, ciphertext) {
    let decrypted = await window.crypto.subtle.decrypt(
        {
            name: "RSA-OAEP"
        },
        key,
        ciphertext
    );
    const dec = new TextDecoder();
    return dec.decode(decrypted);
}

window.onload = init;

async function init() {

    const privateKey = 
        '-----BEGIN PRIVATE KEY-----\
        MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQC3jmTi3O1k2YXs\
        AM6nNTTIzDq5YWkxYrYb6cpO9eYuzmphgRnVDR6a1YWRXMoCuCfuNXcDGywzudRn\
        bBMw0FHKLUqCttVHGpZYu0+0tRR10ubxiz/xnd/aCmRYHcmUNn8Qdh3KU59A9HK5\
        HhYFf1vhK8r3fkoO4CjoGo1ROzXyMybUSy+4mSNscUtt5LwrVn48vXvG5i5B4DRT\
        nM4cINmutEzA2s5cDt+dzU4Py71fKBRDRIGGn0vdVSoZKbWuhm5WewyRewCk7HFc\
        PALCi5/1A7VKDAHUC4FlXmuG2+wzdchEyxMj6oLR7+BkKFQaTmuMM/22cGBjVTVt\
        pSr3iDovAgMBAAECggEBAIuTQW+oovNu3IDq1DkdIjgV5AmW4tBkySlMi0OjhBbP\
        auEdtDDnOwBtoJU6Q3nx4psmGItKHEBw6+yAp88UeT0NV30x3delhfGO7Trx/s7h\
        Qi8lvcfSTqeUA11luSR0lAZGaryw/YX820eccw5XG9yK2ll7tIC/PxvPJOpB5fF2\
        XGxGrionTjHDzXJ1OWX0i0aZlNNufInJAHhlt7aT3GiQMKcQs+AUb/+bWxI3Hln8\
        KcL13EUlD4pJW8vtTK3gCnQNKKMoPB5Ugqe5BrU8ElkBz+zSKDnVwt5bgjrlucYz\
        rKJxWr6/qTRZkzmvkhaJeNzzepfwkFsQ/eHcxYrtuDECgYEA8OXkQ2SqYDZwizCd\
        SuVkx2zHm3zXYRSlRtnXYoUdJyTyuZ4k2GvXBrlwRsOJ14emVkHKyR5enmNjwrW5\
        dcD2tbBzavcqOYAMiHcKklcS/gWgPx0X5QFHU33vr8u51BQWCz75lxddWNKxVAN/\
        cUTugONtS4+EP4dSZhuxHt6RscsCgYEAwxA9QmZrI54hjMkIyqwmviRmIk42S5kk\
        OxbhxBbt5qVueLRB092JyGmCR2kYiqdHCYkGFDOE4kni6Bsszq5CSJvhiATFeZeX\
        ldFQeZqAiRY2rAd7xD1upMug/cK3ODA8k3k/e72CtyxtBTR01q29SnPx5p/57MrI\
        3ogddHlGvK0CgYEA3VqhELwjQh1D9OJK5lM683SlRd7FGdOauyvYmhKu4xU0ZBNI\
        0ATnpKoo3R04P+/JjGEQMRXS4794H6ZUMDuLdxAYPiW3ivZ6jbq04BtavEf3I4dc\
        OXWfULzbzbFpo9KBHvxS4974S3Hut8AvDqnEbnKML25EmwuBT4oKis8BGVkCgYEA\
        nusPDZbFeNou+TUbzYrdcZHUB+TyhTq58s4clxYbMgrbaslozAQ0aavT8Pvle6j2\
        zgTth+3FOFr72x+wrJ358I/W+Wrxu7NOU0eZqci/KXCIkDT0l5d5GhewDK3jeYqK\
        /5cLqnNmGHfARjpLak9X5V162erBwjIf3nTEkozvnW0CgYB6L1CX3DkTFH3OBcJe\
        SvV18RDUfNI8MpUKcpofmwwvgER3GrehSZHRVxVwNbnJOqbh/oiwmmNJieKrFsk9\
        EzCRBVWdZByHHYW2js+gCrAp+ghnl1QEAeCU7YTxCJ2fZIAmfB9X4u/7ARtVxnZY\
        mOWlm65KUYr5lf2Ws5plL4pCRA==\
        -----END PRIVATE KEY-----';

    const ciphertext =
        'F6/NwENdUZSl+vrgpWVkyWPQuYaTGDNZPIvj4KmIRHVx4qybxN24LPIgk0Rl84KHcLFadZWCjNpM\
        vg3l826OaKZAtwvIp9IxVrMbvtNOymY6A1koKvC9ema92SR4DC9hmTtMxhUB6r3XgACtRLFqMfg+\
        zYSHfFqQEGJg3yZ43hfzIq/gCfHPk5sZXASq5WY5b9yd4gRonn5D4OCD6xna/r5ovHfrpO/Fwe8N\
        eeY2gqTAdtzvtmOw/HLQhGANejpJYr1IriQbepM7jLjBkJX+uCn38O1MxpQb7s5RXTvGvoEoofWV\
        Cq8gNFhgnVFuurdZUiY0bn58UwaVFdwzEfDSUQ==';

    try {
        const key = await importPrivateKey(privateKey);
        const decrypted = await decryptRSA(key, fromBase64(ciphertext));
        console.log(decrypted);
    } catch(error) {
        console.log(error);
    }
} 

I'm trying to decode an RSA 2048 bit message encoded with a public key using the corresponding private key. The environment is google chrome and I'm using the window.crypto.subtle APIs.

I generated the key couple and encoded the message using openssl tools:

# generate keys and put the private one in file private_key.pem
openssl genpkey -algorithm RSA -out private_key.pem -pkeyopt rsa_keygen_bits:2048

# extract public key in file public_key.pem
openssl rsa -pubout -in private_key.pem -out public_key.pem

# encode message input.txt using the public key
openssl rsautl -encrypt -oaep -inkey public_key.pem -pubin -in input.txt -out msg_rsa.enc

# convert the encoded msg in base 64 format
base64 msg_rsa.enc > msg_rsa_64.enc

This is the javascript code I'm using to decode the message:

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;
}

async function importPrivateKey(pem) {
    pem = pem.replace( /[\r\n]+/gm, "" );
    // fetch the part of the PEM string between header and footer
    const pemHeader = "-----BEGIN PRIVATE KEY-----";
    const pemFooter = "-----END PRIVATE KEY-----";
    const pemContents = pem.substring(pemHeader.length, pem.length - pemFooter.length);
    // base64 decode the string to get the binary data
    const binaryDerString = window.atob(pemContents);
    // convert from a binary string to an ArrayBuffer
    const binaryDer = str2ab(binaryDerString);

    return window.crypto.subtle.importKey(
      "pkcs8",
      binaryDer,
      {
        name: "RSA-OAEP",
        modulusLength: 2048,
        publicExponent: new Uint8Array([1, 0, 1]),
        hash: "SHA-256",
      },
      true,
      ["decrypt"]
    );
}

async function decryptRSA(_key, ciphertext) {
    let decrypted = await window.crypto.subtle.decrypt(
      {
        name: "RSA-OAEP"
      },
      _key,
      ciphertext
    );
    const dec = new TextDecoder();
    return dec.decode(decrypted);
}

const fromBase64 = base64String => Uint8Array.from(atob(base64String), c => c.charCodeAt(0));

window.onload = init;

async function init() {

    const privateKey = '-----BEGIN PRIVATE KEY-----\
MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQC3jmTi3O1k2YXs\
AM6nNTTIzDq5YWkxYrYb6cpO9eYuzmphgRnVDR6a1YWRXMoCuCfuNXcDGywzudRn\
bBMw0FHKLUqCttVHGpZYu0+0tRR10ubxiz/xnd/aCmRYHcmUNn8Qdh3KU59A9HK5\
HhYFf1vhK8r3fkoO4CjoGo1ROzXyMybUSy+4mSNscUtt5LwrVn48vXvG5i5B4DRT\
nM4cINmutEzA2s5cDt+dzU4Py71fKBRDRIGGn0vdVSoZKbWuhm5WewyRewCk7HFc\
PALCi5/1A7VKDAHUC4FlXmuG2+wzdchEyxMj6oLR7+BkKFQaTmuMM/22cGBjVTVt\
pSr3iDovAgMBAAECggEBAIuTQW+oovNu3IDq1DkdIjgV5AmW4tBkySlMi0OjhBbP\
auEdtDDnOwBtoJU6Q3nx4psmGItKHEBw6+yAp88UeT0NV30x3delhfGO7Trx/s7h\
Qi8lvcfSTqeUA11luSR0lAZGaryw/YX820eccw5XG9yK2ll7tIC/PxvPJOpB5fF2\
XGxGrionTjHDzXJ1OWX0i0aZlNNufInJAHhlt7aT3GiQMKcQs+AUb/+bWxI3Hln8\
KcL13EUlD4pJW8vtTK3gCnQNKKMoPB5Ugqe5BrU8ElkBz+zSKDnVwt5bgjrlucYz\
rKJxWr6/qTRZkzmvkhaJeNzzepfwkFsQ/eHcxYrtuDECgYEA8OXkQ2SqYDZwizCd\
SuVkx2zHm3zXYRSlRtnXYoUdJyTyuZ4k2GvXBrlwRsOJ14emVkHKyR5enmNjwrW5\
dcD2tbBzavcqOYAMiHcKklcS/gWgPx0X5QFHU33vr8u51BQWCz75lxddWNKxVAN/\
cUTugONtS4+EP4dSZhuxHt6RscsCgYEAwxA9QmZrI54hjMkIyqwmviRmIk42S5kk\
OxbhxBbt5qVueLRB092JyGmCR2kYiqdHCYkGFDOE4kni6Bsszq5CSJvhiATFeZeX\
ldFQeZqAiRY2rAd7xD1upMug/cK3ODA8k3k/e72CtyxtBTR01q29SnPx5p/57MrI\
3ogddHlGvK0CgYEA3VqhELwjQh1D9OJK5lM683SlRd7FGdOauyvYmhKu4xU0ZBNI\
0ATnpKoo3R04P+/JjGEQMRXS4794H6ZUMDuLdxAYPiW3ivZ6jbq04BtavEf3I4dc\
OXWfULzbzbFpo9KBHvxS4974S3Hut8AvDqnEbnKML25EmwuBT4oKis8BGVkCgYEA\
nusPDZbFeNou+TUbzYrdcZHUB+TyhTq58s4clxYbMgrbaslozAQ0aavT8Pvle6j2\
zgTth+3FOFr72x+wrJ358I/W+Wrxu7NOU0eZqci/KXCIkDT0l5d5GhewDK3jeYqK\
/5cLqnNmGHfARjpLak9X5V162erBwjIf3nTEkozvnW0CgYB6L1CX3DkTFH3OBcJe\
SvV18RDUfNI8MpUKcpofmwwvgER3GrehSZHRVxVwNbnJOqbh/oiwmmNJieKrFsk9\
EzCRBVWdZByHHYW2js+gCrAp+ghnl1QEAeCU7YTxCJ2fZIAmfB9X4u/7ARtVxnZY\
mOWlm65KUYr5lf2Ws5plL4pCRA==\
-----END PRIVATE KEY-----';

    const ciphertext = 'F6/NwENdUZSl+vrgpWVkyWPQuYaTGDNZPIvj4KmIRHVx4qybxN24LPIgk0Rl84KHcLFadZWCjNpM\
vg3l826OaKZAtwvIp9IxVrMbvtNOymY6A1koKvC9ema92SR4DC9hmTtMxhUB6r3XgACtRLFqMfg+\
zYSHfFqQEGJg3yZ43hfzIq/gCfHPk5sZXASq5WY5b9yd4gRonn5D4OCD6xna/r5ovHfrpO/Fwe8N\
eeY2gqTAdtzvtmOw/HLQhGANejpJYr1IriQbepM7jLjBkJX+uCn38O1MxpQb7s5RXTvGvoEoofWV\
Cq8gNFhgnVFuurdZUiY0bn58UwaVFdwzEfDSUQ==';

    try {
        const key = await importPrivateKey(privateKey);
        const decoded = await decryptRSA(key, fromBase64(ciphertext));
        console.log(decoded);
    } catch(error) {
        console.log(error);
    }
}

Running the code, I got an exception in window.crypto.subtle.decrypt with the rather useless message "DOMException".

What am I doing wrong?

Thanks

解决方案

There's only one flaw: The posted code currently uses OAEP with SHA256. The ciphertext can be decrypted with the posted key if OAEP with SHA1 is applied as padding.

In addition, the function fromBase64 can be used to Base64 decode the key into a TypedArray, so the function str2ab is actually not needed (but of course this is not an error, just redundant).

const fromBase64 = base64String => Uint8Array.from(atob(base64String), c => c.charCodeAt(0));
const getPkcs8Der = pkcs8Pem => {
    pkcs8Pem = pkcs8Pem.replace( /[\r\n]+/gm, "" );
    const pkcs8PemHeader = "-----BEGIN PRIVATE KEY-----";
    const pkcs8PemFooter = "-----END PRIVATE KEY-----";
    pkcs8Pem = pkcs8Pem.substring(pkcs8PemHeader.length, pkcs8Pem.length - pkcs8PemFooter.length);
    return fromBase64(pkcs8Pem);	
}		
	 
async function importPrivateKey(pkcs8Pem) {		
    return await window.crypto.subtle.importKey(
        "pkcs8",
        getPkcs8Der(pkcs8Pem),
        {
            name: "RSA-OAEP",
            hash: "SHA-1",          // Replace SHA-256 with SHA-1
        },
        true,
        ["decrypt"]
    );
}

async function decryptRSA(key, ciphertext) {
    let decrypted = await window.crypto.subtle.decrypt(
        {
            name: "RSA-OAEP"
        },
        key,
        ciphertext
    );
    const dec = new TextDecoder();
    return dec.decode(decrypted);
}

window.onload = init;

async function init() {

    const privateKey = 
        '-----BEGIN PRIVATE KEY-----\
        MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQC3jmTi3O1k2YXs\
        AM6nNTTIzDq5YWkxYrYb6cpO9eYuzmphgRnVDR6a1YWRXMoCuCfuNXcDGywzudRn\
        bBMw0FHKLUqCttVHGpZYu0+0tRR10ubxiz/xnd/aCmRYHcmUNn8Qdh3KU59A9HK5\
        HhYFf1vhK8r3fkoO4CjoGo1ROzXyMybUSy+4mSNscUtt5LwrVn48vXvG5i5B4DRT\
        nM4cINmutEzA2s5cDt+dzU4Py71fKBRDRIGGn0vdVSoZKbWuhm5WewyRewCk7HFc\
        PALCi5/1A7VKDAHUC4FlXmuG2+wzdchEyxMj6oLR7+BkKFQaTmuMM/22cGBjVTVt\
        pSr3iDovAgMBAAECggEBAIuTQW+oovNu3IDq1DkdIjgV5AmW4tBkySlMi0OjhBbP\
        auEdtDDnOwBtoJU6Q3nx4psmGItKHEBw6+yAp88UeT0NV30x3delhfGO7Trx/s7h\
        Qi8lvcfSTqeUA11luSR0lAZGaryw/YX820eccw5XG9yK2ll7tIC/PxvPJOpB5fF2\
        XGxGrionTjHDzXJ1OWX0i0aZlNNufInJAHhlt7aT3GiQMKcQs+AUb/+bWxI3Hln8\
        KcL13EUlD4pJW8vtTK3gCnQNKKMoPB5Ugqe5BrU8ElkBz+zSKDnVwt5bgjrlucYz\
        rKJxWr6/qTRZkzmvkhaJeNzzepfwkFsQ/eHcxYrtuDECgYEA8OXkQ2SqYDZwizCd\
        SuVkx2zHm3zXYRSlRtnXYoUdJyTyuZ4k2GvXBrlwRsOJ14emVkHKyR5enmNjwrW5\
        dcD2tbBzavcqOYAMiHcKklcS/gWgPx0X5QFHU33vr8u51BQWCz75lxddWNKxVAN/\
        cUTugONtS4+EP4dSZhuxHt6RscsCgYEAwxA9QmZrI54hjMkIyqwmviRmIk42S5kk\
        OxbhxBbt5qVueLRB092JyGmCR2kYiqdHCYkGFDOE4kni6Bsszq5CSJvhiATFeZeX\
        ldFQeZqAiRY2rAd7xD1upMug/cK3ODA8k3k/e72CtyxtBTR01q29SnPx5p/57MrI\
        3ogddHlGvK0CgYEA3VqhELwjQh1D9OJK5lM683SlRd7FGdOauyvYmhKu4xU0ZBNI\
        0ATnpKoo3R04P+/JjGEQMRXS4794H6ZUMDuLdxAYPiW3ivZ6jbq04BtavEf3I4dc\
        OXWfULzbzbFpo9KBHvxS4974S3Hut8AvDqnEbnKML25EmwuBT4oKis8BGVkCgYEA\
        nusPDZbFeNou+TUbzYrdcZHUB+TyhTq58s4clxYbMgrbaslozAQ0aavT8Pvle6j2\
        zgTth+3FOFr72x+wrJ358I/W+Wrxu7NOU0eZqci/KXCIkDT0l5d5GhewDK3jeYqK\
        /5cLqnNmGHfARjpLak9X5V162erBwjIf3nTEkozvnW0CgYB6L1CX3DkTFH3OBcJe\
        SvV18RDUfNI8MpUKcpofmwwvgER3GrehSZHRVxVwNbnJOqbh/oiwmmNJieKrFsk9\
        EzCRBVWdZByHHYW2js+gCrAp+ghnl1QEAeCU7YTxCJ2fZIAmfB9X4u/7ARtVxnZY\
        mOWlm65KUYr5lf2Ws5plL4pCRA==\
        -----END PRIVATE KEY-----';

    const ciphertext =
        'F6/NwENdUZSl+vrgpWVkyWPQuYaTGDNZPIvj4KmIRHVx4qybxN24LPIgk0Rl84KHcLFadZWCjNpM\
        vg3l826OaKZAtwvIp9IxVrMbvtNOymY6A1koKvC9ema92SR4DC9hmTtMxhUB6r3XgACtRLFqMfg+\
        zYSHfFqQEGJg3yZ43hfzIq/gCfHPk5sZXASq5WY5b9yd4gRonn5D4OCD6xna/r5ovHfrpO/Fwe8N\
        eeY2gqTAdtzvtmOw/HLQhGANejpJYr1IriQbepM7jLjBkJX+uCn38O1MxpQb7s5RXTvGvoEoofWV\
        Cq8gNFhgnVFuurdZUiY0bn58UwaVFdwzEfDSUQ==';

    try {
        const key = await importPrivateKey(privateKey);
        const decrypted = await decryptRSA(key, fromBase64(ciphertext));
        console.log(decrypted);
    } catch(error) {
        console.log(error);
    }
}

这篇关于使用window.crypto.subtle API从浏览器解密RSA消息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IT屋!

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