帮我写一个有前端的RSA签名验签的Python代码
时间: 2024-02-05 19:13:41 浏览: 131
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RSA签名和验签过程需要用到前端和后端的配合,前端负责生成密钥对和签名,后端负责验证签名的正确性。以下是一个示例代码,实现了前端的RSA签名和验签过程。
```html
<!DOCTYPE html>
<html>
<head>
<title>RSA Signature Example</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jsrsasign/8.0.12/jsrsasign-all-min.js"></script>
</head>
<body>
<h2>RSA Signature Example</h2>
<p>Enter a message to sign:</p>
<textarea id="message"></textarea>
<br>
<button onclick="generateKeyPair()">Generate Key Pair</button>
<button onclick="signMessage()">Sign Message</button>
<br>
<p>Public Key:</p>
<textarea id="publicKey"></textarea>
<br>
<p>Private Key:</p>
<textarea id="privateKey"></textarea>
<br>
<p>Signed Message:</p>
<textarea id="signedMessage"></textarea>
<br>
<p>Enter the signed message to verify:</p>
<textarea id="verifiedMessage"></textarea>
<br>
<button onclick="verifyMessage()">Verify Message</button>
<br>
<p id="verificationStatus"></p>
<script>
var keypair;
function generateKeyPair() {
// Generate a new RSA key pair
keypair = KEYUTIL.generateKeypair("RSA", 2048);
// Display the public and private keys
var publicKey = KEYUTIL.getPEM(keypair.pubKeyObj);
var privateKey = KEYUTIL.getPEM(keypair.prvKeyObj);
document.getElementById("publicKey").value = publicKey;
document.getElementById("privateKey").value = privateKey;
}
function signMessage() {
var message = document.getElementById("message").value;
// Create a new RSA signature object
var sig = new KJUR.crypto.Signature({"alg": "SHA256withRSA", "prov": "cryptojs/jsrsa"});
// Initialize the signature object with the private key
sig.init(keypair.prvKeyObj);
// Sign the message and encode it as Base64
sig.updateString(message);
var signedMessage = sig.sign();
document.getElementById("signedMessage").value = btoa(signedMessage);
}
function verifyMessage() {
var message = document.getElementById("verifiedMessage").value;
var signedMessage = atob(document.getElementById("signedMessage").value);
// Create a new RSA signature object
var sig = new KJUR.crypto.Signature({"alg": "SHA256withRSA", "prov": "cryptojs/jsrsa"});
// Initialize the signature object with the public key
sig.init(keypair.pubKeyObj);
// Verify the signature
var isValid = sig.verify(signedMessage);
if (isValid) {
document.getElementById("verificationStatus").innerHTML = "Signature is valid!";
} else {
document.getElementById("verificationStatus").innerHTML = "Signature is invalid.";
}
}
</script>
</body>
</html>
```
在上面的代码中,我们使用了jsrsasign库来进行RSA签名和验签操作。首先,我们需要生成一个RSA密钥对,然后将公钥和私钥显示在页面上。接着,我们可以输入要签名的消息并进行签名,签名后的消息将以Base64编码的形式显示在页面上。我们还可以输入已签名的消息进行验证,如果签名是有效的,页面将显示“Signature is valid!”;否则,页面将显示“Signature is invalid.”。
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