签署

Sui 消息签名适合登录认证、地址所有权证明和链下授权。签名前请确保消息包含 nonce、应用来源和必要上下文，避免签名被重复使用。

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签名个人消息

建议优先使用 signPersonalMessage 发起个人消息签名：

const message = new TextEncoder().encode("Sui sample payload");
const [account] = await provider.getAccounts();
const chain = await provider.getActiveChain();

const callResult = await provider.signPersonalMessage({
  message,
  account,
  chain,
});

console.log({
  signature: callResult.signature, // Base64 形式的签名
  bytes: callResult.bytes, // 签名后的消息字节
});

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签名消息（旧版）

const message = new TextEncoder().encode("Sui sample payload");
const [account] = await provider.getAccounts();
const chain = await provider.getActiveChain();

const callResult = await provider.signMessage({
  message,
  account,
  chain,
});

console.log({
  signature: callResult.signature,
  messageBytes: callResult.messageBytes,
});

---

验签

import { verifyPersonalMessage } from "@mysten/sui.js/verify";

const message = new TextEncoder().encode("Sui sample payload");
const [account] = await provider.getAccounts();
const chain = await provider.getActiveChain();
const { signature } = await provider.signPersonalMessage({
  message,
  account,
  chain,
});

const accounts = await provider.getAccounts();
const publicKey = accounts[0].publicKey;

const isValid = await verifyPersonalMessage(message, signature);
console.log("签名校验结果:", isValid);

---

处理异常

try {
  await provider.requestPermissions();
} catch (error) {
  if (error.code === 4001) {
    console.log("用户拒绝了这次连接请求");
  } else {
    console.error("连接过程中出错:", error.message);
  }
}

---

常见错误码

错误码	说明
4001	用户取消了本次请求
4100	尚未完成授权
-32603	内部处理异常