function

crypto.publicEncrypt

key: KeyLike | PublicEncryptKeyObjectInput | PublicEncryptPrivateKeyInput | PublicEncryptPublicKeyInput | PublicEncryptJsonWebKeyInput,

buffer: BinaryLike

): NonSharedBuffer;

Encrypts the content of buffer with key and returns a new Buffer with encrypted content. The returned data can be decrypted using the corresponding private key, for example using privateDecrypt.

If key is not a KeyObject, this function behaves as if key had been passed to createPublicKey. If it is an object, the padding property can be passed. Otherwise, this function uses RSA_PKCS1_OAEP_PADDING.

Because RSA public keys can be derived from private keys, a private key may be passed instead of a public key.

Referenced types

type KeyLike = BinaryLike | KeyObject

interface PublicEncryptKeyObjectInput

encoding?: BufferEncoding
key: KeyObject
oaepHash?: string
oaepLabel?: BinaryLike
padding?: number

interface PublicEncryptPrivateKeyInput

interface PublicEncryptPublicKeyInput

encoding?: BufferEncoding
format?: 'pem' | 'der'
key: BinaryLike
oaepHash?: string
oaepLabel?: BinaryLike
padding?: number
type?: PublicKeyExportType

interface PublicEncryptJsonWebKeyInput

encoding?: BufferEncoding
format: 'jwk'
key: JsonWebKey
oaepHash?: string
oaepLabel?: BinaryLike
padding?: number

type BinaryLike = string | ArrayBufferLike | NodeJS.ArrayBufferView