KeyObject.from(key)
key
<CryptoKey>- 返回: <KeyObject>
示例:将 CryptoKey
实例转换为 KeyObject
:
const { webcrypto, KeyObject } = await import('node:crypto');
const { subtle } = webcrypto;
const key = await subtle.generateKey({
name: 'HMAC',
hash: 'SHA-256',
length: 256
}, true, ['sign', 'verify']);
const keyObject = KeyObject.from(key);
console.log(keyObject.symmetricKeySize);
// 打印: 32 ((以字节为单位的对称密钥大小))
const {
webcrypto: {
subtle,
},
KeyObject,
} = require('node:crypto');
(async function() {
const key = await subtle.generateKey({
name: 'HMAC',
hash: 'SHA-256',
length: 256
}, true, ['sign', 'verify']);
const keyObject = KeyObject.from(key);
console.log(keyObject.symmetricKeySize);
// 打印: 32 ((以字节为单位的对称密钥大小))
})();
key
<CryptoKey>- Returns: <KeyObject>
Example: Converting a CryptoKey
instance to a KeyObject
:
const { webcrypto, KeyObject } = await import('node:crypto');
const { subtle } = webcrypto;
const key = await subtle.generateKey({
name: 'HMAC',
hash: 'SHA-256',
length: 256
}, true, ['sign', 'verify']);
const keyObject = KeyObject.from(key);
console.log(keyObject.symmetricKeySize);
// Prints: 32 (symmetric key size in bytes)
const {
webcrypto: {
subtle,
},
KeyObject,
} = require('node:crypto');
(async function() {
const key = await subtle.generateKey({
name: 'HMAC',
hash: 'SHA-256',
length: 256
}, true, ['sign', 'verify']);
const keyObject = KeyObject.from(key);
console.log(keyObject.symmetricKeySize);
// Prints: 32 (symmetric key size in bytes)
})();