Method Nettle.BufferedCipher()->Buffer.State()->unpad()

Method unpad

string(8bit) unpad(string(8bit) data, void|int method)

Description

Decrypt and unpad a block of data. Neither the input or output data is not automatically memory scrubbed, unless String.secure has been called on the data.

This performs the reverse operation of pad(). The padding will be verified to be correct, if possible. If not, zero is returned.

Parameter method

The type of padding that was applied to the original buffer.

Crypto.PAD_SSL

Crypto.PAD_TLS

Crypto.PAD_ISO_10126

Crypto.PAD_ANSI_X923

Crypto.PAD_PKCS7

Crypto.PAD_ZERO

Defaults to Crypto.PAD_SSL for compatibility reasons.

See also

pad()