Internet Explorer 11中的公钥加密 [英] Public key encryption in Internet Explorer 11

问题描述

 < script> 
 var data = new Uint8Array（[0，1，2，3，4，5，6，7，8，9]）; 
 
 var crypto = window.crypto || window.msCrypto; 
 var cryptoSubtle = crypto.subtle; 
 
 var genOp = cryptoSubtle.generateKey（
 {
 name：RSA-OAEP，
 modulusLength：2048，
 publicExponent：new Uint8Array 0x01，0x00，0x01]），
哈希：{名称：SHA-256}，
}，
 true，
 [encrypt，decrypt] 
）; 
 
 genOp.onerror = function（e）{
 console.error（e）; 
}; 
 
 genOp.oncomplete = function（e）{
 var key = e.target.result; 
 console.log（key）; 
 console.log（key.publicKey）; 
 
 var encOp = cryptoSubtle.encrypt（
 {
 name：RSA-OAEP
}，
 key.publicKey，
 data 
）; 
 
 encOp.onerror = function（e）{
 console.error（e）; 
}; 
 
 encOp.oncomplete = function（e）{
 var encrypted = e.target.result; 
 console.log（new Uint8Array（encrypted））; 
}; 
}; 
< / script> 
  

它生成密钥对，但无法使用错误事件进行加密。具有对称AES密钥的类似代码工作。 IE11支持公钥加密吗？我的代码有什么问题吗？

解决方案

我发现了这个的原因。调用加密调用时需要添加哈希字段：

  var encOp = cryptoSubtle.encrypt（
 {
名称：RSA-OAEP，
哈希：{name：SHA-256} 
}，
 key.publicKey，
 data 
） ; 
  

这与 Web Cryptography API规范，但它有效。

I am trying to implement public key encryption using JavaScript for IE11 with the following code:

<script>
    var data = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);

    var crypto = window.crypto || window.msCrypto;
    var cryptoSubtle = crypto.subtle;

    var genOp = cryptoSubtle.generateKey(
        {
            name: "RSA-OAEP",
            modulusLength: 2048,
            publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
            hash: { name: "SHA-256" },
        },
        true,
        ["encrypt", "decrypt"]
    );

    genOp.onerror = function (e) {
        console.error(e);
    };

    genOp.oncomplete = function (e) {
        var key = e.target.result;
        console.log(key);
        console.log(key.publicKey);

        var encOp = cryptoSubtle.encrypt(
            {
                name: "RSA-OAEP"
            },
            key.publicKey,
            data
        );

        encOp.onerror = function (e) {
            console.error(e);
        };

        encOp.oncomplete = function (e) {
            var encrypted = e.target.result;
            console.log(new Uint8Array(encrypted));
        };
    };
</script>

It generates the key pair but fails to do the encryption with an error event. Similar code with a symmetric AES key works. Is public key encryption supported by IE11? Is there anything wrong with my code?

解决方案

I've found out the cause of this. I need to add the hash field when invoking the encrypt call:

        var encOp = cryptoSubtle.encrypt(
            {
                name: "RSA-OAEP",
                hash: { name: "SHA-256" }
            },
            key.publicKey,
            data
        );

This does not match the Web Cryptography API specification but it works.

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