crypto.privateEncrypt(privateKey, buffer)

版本历史

版本	变更
v15.0.0	添加了字符串、ArrayBuffer 和 CryptoKey 作为允许的密钥类型。密码可以是 ArrayBuffer。缓冲区可以是字符串或 ArrayBuffer。所有接受缓冲区的类型都被限制为最多 2 ** 31 - 1 个字节。
v11.6.0	此函数现在支持密钥对象。
v1.1.0	新增于: v1.1.0

privateKey <Object> | <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView> | <KeyObject> | <CryptoKey>
- key <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView> | <KeyObject> | <CryptoKey> PEM 编码的私钥。
- passphrase <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView> 可选的私钥密码。
- padding <crypto.constants> crypto.constants 中定义的可选填充值，可以是：crypto.constants.RSA_NO_PADDING 或 crypto.constants.RSA_PKCS1_PADDING。
- encoding <string> 当 buffer、key 或 passphrase 是字符串时使用的字符串编码。
buffer <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView>
返回: <Buffer> 带有加密内容的新 Buffer。

用 privateKey 加密 buffer。返回的数据可以使用相应的公钥解密，例如使用 crypto.publicDecrypt()。

如果 privateKey 不是 KeyObject，则此函数的行为就像将 privateKey 传给 crypto.createPrivateKey() 一样。如果是对象，则可以传入 padding 属性。否则，该函数使用 RSA_PKCS1_PADDING。

History

Version	Changes
v15.0.0	Added string, ArrayBuffer, and CryptoKey as allowable key types. The passphrase can be an ArrayBuffer. The buffer can be a string or ArrayBuffer. All types that accept buffers are limited to a maximum of 2 ** 31 - 1 bytes.
v11.6.0	This function now supports key objects.
v1.1.0	Added in: v1.1.0

privateKey <Object> | <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView> | <KeyObject> | <CryptoKey>
- key <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView> | <KeyObject> | <CryptoKey> A PEM encoded private key.
- passphrase <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView> An optional passphrase for the private key.
- padding <crypto.constants> An optional padding value defined in crypto.constants, which may be: crypto.constants.RSA_NO_PADDING or crypto.constants.RSA_PKCS1_PADDING.
- encoding <string> The string encoding to use when buffer, key, or passphrase are strings.
buffer <string> | <ArrayBuffer> | <Buffer> | <TypedArray> | <DataView>
Returns: <Buffer> A new Buffer with the encrypted content.

Encrypts buffer with privateKey. The returned data can be decrypted using the corresponding public key, for example using crypto.publicDecrypt().

If privateKey is not a KeyObject, this function behaves as if privateKey had been passed to crypto.createPrivateKey(). If it is an object, the padding property can be passed. Otherwise, this function uses RSA_PKCS1_PADDING.