Cipher.FileDecrypt(String, String, Byte[], Byte[], CipherAlgorithm, Mode, Padding, Cipher.Opts) Method

Decrypt a file.

Syntax

public static int FileDecrypt(
   string fileOut,
   string fileIn,
   byte[] key,
   byte[] iv,
   CipherAlgorithm cipherAlg,
   Mode mode,
   Padding pad = Padding.Default,
   Cipher.Opts opts = Cipher.Opts.Default 
)

Public Shared Function FileDecrypt (
   fileOut As String,
   fileIn As String,
   key As Byte(),
   iv As Byte(),
   cipherAlg As CipherAlgorithm,
   mode As Mode,
   Optional pad As Padding = Padding.Default,
   Optional opts As Cipher.Opts = Cipher.Opts.Default 
) As Integer

Parameters

fileOut  String

Name of output file to be created or overwritten

fileIn  String

Name of input file

key  Byte

Key of of exact length for block cipher algorithm

iv  Byte

Initialization Vector (IV) of exactly the block size, or null for ECB mode or if IV is prefixed.

cipherAlg  CipherAlgorithm

Cipher Algorithm

mode  Mode

Cipher Mode

pad  Padding  (Optional)

Padding method to use (optional, ECB and CBC modes only, default=Pkcs5)

opts  Cipher.Opts  (Optional)

Advanced options. Use Cipher.Opts.PrefixIV to expect the IV to be prepended to the input.

Return Value

Remarks

See Also

VB6/C equivalent: CIPHER_FileDecrypt

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