key
{Object | string | Buffer | KeyObject}passphrase
{string | Buffer} An optional passphrase for the private key.padding
{crypto.constants} An optional padding value defined incrypto.constants
, which may be:crypto.constants.RSA_NO_PADDING
orcrypto.constants.RSA_PKCS1_PADDING
.
buffer
{Buffer | TypedArray | DataView}- Returns: {Buffer} A new
Buffer
with the decrypted content.
Decrypts buffer
with key
.buffer
was previously encrypted using
the corresponding private key, for example using [crypto.privateEncrypt()
][].
If key
is not a [KeyObject
][], this function behaves as if
key
had been passed to [crypto.createPublicKey()
][]. If it is an
object, the padding
property can be passed. Otherwise, this function uses
RSA_PKCS1_PADDING
.
Because RSA public keys can be derived from private keys, a private key may be passed instead of a public key.