ot4xb_cng() new methods for rc4 encryption

ot4xb version 1.6.4.83 introducing 2 new class methods to add RC4 encryption to the ot4xb_cng() class


The previous function was only supporting the flag 1 or .T. meaning case insensitive compare

CLASS ot4xb_cng

The purpose of the ot4xb_cng class is to provide some encryption and decryption methods using the Windows CNG API

Syntax

AES 256 methods

ot4xb_cng():aes_encrypt( cInputStr  , flags) -> cOutputString 

ot4xb_cng():aes_decrypt( cInputStr  , flags ) -> cOutputString 

RC4 methods

ot4xb_cng():rc4_encrypt( cInputStr  , flags ) -> cOutputString 

ot4xb_cng():rc4_decrypt( cInputStr  , flags ) -> cOutputString 

flags

_ot4xb_expando_() object providing the required parameters for the encryption or decryption operations

cInputStr

The string to be encrypted or decrypted. flags:encode_input will determine the expected content

cOutputString

The string resulting from the encryption or decryption operation. flags:encode_input will determine the expected content

common flags

flags:encode_input

supported values are "bin","hex" and "base64" or "b64"

flags:encode_output

supported values are "bin","hex" and "base64" or "b64"

flags:key

key or password phrase used for the encryption or decryption operation

flags:encode_key

supported values are "bin","hex" and "base64" or "b64"

AES 256 specific flags

flags:mode

Suported modes for AES are "ebc" or "cbc"

flags:aes_block_padding

Logical value. default .F.

flags:IV

CBC mode will require a 16 bytes initialization string

flags:encode_IV

supported values are "bin","hex" and "base64" or "b64"