crypto.pbkdf2Sync(password, salt, iterations, keylen, digest)

版本历史

版本	变更
v14.0.0	The `iterations` parameter is now restricted to positive values. Earlier releases treated other values as one.
v6.0.0	Calling this function without passing the `digest` parameter is deprecated now and will emit a warning.
v6.0.0	The default encoding for `password` if it is a string changed from `binary` to `utf8`.
v0.9.3	新增于: v0.9.3

password <string> | <Buffer> | <TypedArray> | <DataView>
salt <string> | <Buffer> | <TypedArray> | <DataView>
iterations <number>
keylen <number>
digest <string>
返回：<Buffer>

提供一个同步的基于密码的密钥派生函数2（PBKDF2）实现。通过指定的 digest HMAC 摘要算法，从 password、salt 和 iterations 派生所需字节长度（keylen）的密钥。

🌐 Provides a synchronous Password-Based Key Derivation Function 2 (PBKDF2) implementation. A selected HMAC digest algorithm specified by digest is applied to derive a key of the requested byte length (keylen) from the password, salt and iterations.

如果发生错误，将抛出 Error，否则派生的密钥将作为 Buffer 返回。

🌐 If an error occurs an Error will be thrown, otherwise the derived key will be returned as a Buffer.

iterations 参数必须是尽可能高的数字。迭代次数越多，派生的密钥就越安全，但完成所需的时间也会更长。

🌐 The iterations argument must be a number set as high as possible. The higher the number of iterations, the more secure the derived key will be, but will take a longer amount of time to complete.

salt 应尽可能唯一。建议盐值是随机的，并且至少为 16 字节长。详情请参阅 NIST SP 800-132。

🌐 The salt should be as unique as possible. It is recommended that a salt is random and at least 16 bytes long. See NIST SP 800-132 for details.

在传递 password 或 salt 字符串时，请考虑将字符串用作加密 API 输入时的注意事项。

🌐 When passing strings for password or salt, please consider caveats when using strings as inputs to cryptographic APIs.

const {
  pbkdf2Sync,
} = await import('node:crypto');

const key = pbkdf2Sync('secret', 'salt', 100000, 64, 'sha512');
console.log(key.toString('hex'));  // '3745e48...08d59ae'const {
  pbkdf2Sync,
} = require('node:crypto');

const key = pbkdf2Sync('secret', 'salt', 100000, 64, 'sha512');
console.log(key.toString('hex'));  // '3745e48...08d59ae'

可以使用 crypto.getHashes() 检索受支持的摘要函数数组。

🌐 An array of supported digest functions can be retrieved using crypto.getHashes().