async function verifySignature(signature, body, nonce, timestamp) { // 构建响应体中待签名数据 let buildSignMessage = timestamp .concat('\n') .concat(nonce) .concat('\n') .concat(body) .concat('\n') console.log('---buildSignMessage:',buildSignMessage) return crypto.createVerify('RSA-SHA256') .update(Buffer.from(buildSignMessage),'utf8') .verify(public_key, Buffer.from(signature, 'base64')) // .verify(public_key, signature, 'base64') }