静态方法：Certificate.exportPublicKey(spkac[, encoding])

【Static method: Certificate.exportPublicKey(spkac[, encoding])】

• spkac <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView>
• encoding <string> spkac 字符串的 编码。
• 返回: <Buffer> spkac 数据结构的公钥部分，其中包括公钥和挑战码。

const { Certificate } = await import('node:crypto');
const spkac = getSpkacSomehow();
const publicKey = Certificate.exportPublicKey(spkac);
console.log(publicKey);
// Prints: the public key as <Buffer ...>const { Certificate } = require('node:crypto');
const spkac = getSpkacSomehow();
const publicKey = Certificate.exportPublicKey(spkac);
console.log(publicKey);
// Prints: the public key as <Buffer ...>拷贝