CAST Class

Properties Methods Events Config Settings Errors

Encrypt and decrypt data with the CAST-128/CAST5 block cipher.

Syntax

class ipworksencrypt.CAST

Remarks

The CAST component is used to encrypt and decrypt data with the CAST-128/CAST5 block cipher.

To begin simply specify the data you wish to encrypt or decrypt.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

input_file
input_message

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

output_file
output_message: The output data is written to this property if no other destination is specified.

Before encrypting you must have a valid key and iv. There are a few options available to you in regards to key management. The easiest option is to simply set key_password. When key_password is set the component will automatically create a key and iv using the PKCS5 password digest algorithm. This means there is only one value you need to keep track of.

If you wish to have more control over the key and iv values you may specify the properties yourself. If iv is left empty, one will be created for you when you call encrypt or decrypt.

A simple example: Component.InputFile = "C:\MyFile.txt"; Component.OutputFile = "C:\Encrypted.txt"; Component.KeyPassword = "password"; Component.Encrypt();

Property List

The following is the full list of the properties of the class with short descriptions. Click on the links for further details.


cipher_mode	The cipher mode of operation.
input_file	The file to process.
input_message	The message to process.
iv	The initialization vector (IV).
key	The secret key for the symmetric algorithm.
key_password	A password to generate the Key and IV .
output_file	The output file when encrypting or decrypting.
output_message	The output message after processing.
overwrite	Indicates whether or not the class should overwrite files.
padding_mode	The padding mode.
use_hex	Whether input or output is hex encoded.

Method List

The following is the full list of the methods of the class with short descriptions. Click on the links for further details.


config	Sets or retrieves a configuration setting.
decrypt	Decrypts the data.
decrypt_block	Decrypts a block and returns the decrypted data.
encrypt	Encrypts the data.
encrypt_block	Encrypts data and returns the encrypted block.
reset	Resets the class.

Event List

The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.


on_error	Fired when information is available about errors during data delivery.
on_progress	Fired as progress is made.

Config Settings

The following is a list of config settings for the class with short descriptions. Click on the links for further details.


BlockSize	The block size, in bits, of the cryptographic operation.
EncryptedDataEncoding	The encoding of the encrypted input or output data.
IncludeIV	Whether to prepend the IV to the output data and read the IV from the input data.
KeyPasswordAlgorithm	The hash algorithm used to derive the Key and IV from the KeyPassword property.
KeyPasswordIterations	The number of iterations performed when using KeyPassword to derive the Key and IV.
KeyPasswordSalt	The salt value used in conjunction with the KeyPassword to derive the Key and IV.
KeySize	The size, in bits, of secret key for the symmetric algorithm.
BuildInfo	Information about the product's build.
CodePage	The system code page used for Unicode to Multibyte translations.
LicenseInfo	Information about the current license.
MaskSensitive	Whether sensitive data is masked in log messages.
ProcessIdleEvents	Whether the class uses its internal event loop to process events when the main thread is idle.
SelectWaitMillis	The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.
UseInternalSecurityAPI	Whether or not to use the system security libraries or an internal implementation.

cipher_mode Property

The cipher mode of operation.

Syntax

def get_cipher_mode() -> int: ...
def set_cipher_mode(value: int) -> None: ...

cipher_mode = property(get_cipher_mode, set_cipher_mode)

Default Value

Remarks

The cipher mode of operation.

Possible values are:


0 (cmCBC - default)	The Cipher Block Chaining (CBC) is a mode of operation for a block cipher, one in which a sequence of bits is encrypted as a single unit or block with a cipher key applied to the entire block.
1 (cmECB)	The Electronic Codebook (ECB) mode encrypts each block separately. Important: It is not recommend to use this model when encrypting more than one block because it may introduce security risks.
2 (cmOFB)	The Output Feedback (n-bit, NOFB) mode makes a block cipher into a synchronous stream cipher. It has some similarities to CFB mode in that it permits encryption of differing block sizes, but has the key difference that the output of the encryption block function is the feedback (instead of the ciphertext).
3 (cmCFB)	The Cipher Feedback (CFB) mode processes a small amount of incremental text into ciphertext, rather than processing a whole block at one time.
4 (cmCTS)	The Cipher Text Stealing (CTS) mode handles any length of plain text and produces cipher text whose length matches the plain text length. This mode behaves like the CBC mode for all but the last two blocks of the plain text.
5 (cm8OFB)	8-bit Output Feedback (OFB) cipher mode.
7 (cm8CFB)	8-bit Cipher Feedback (CFB) cipher mode.

input_file Property

The file to process.

Syntax

def get_input_file() -> str: ...
def set_input_file(value: str) -> None: ...

input_file = property(get_input_file, set_input_file)

Default Value

Remarks

This property specifies the file to be processed. Set this property to the full or relative path to the file which will be processed.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

input_file
input_message

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

output_file
output_message: The output data is written to this property if no other destination is specified.

input_message Property

The message to process.

Syntax

def get_input_message() -> bytes: ...
def set_input_message(value: bytes) -> None: ...

input_message = property(get_input_message, set_input_message)

Default Value

Remarks

This property specifies the message to be processed.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

input_file
input_message

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

output_file
output_message: The output data is written to this property if no other destination is specified.

iv Property

The initialization vector (IV).

Syntax

def get_iv() -> bytes: ...
def set_iv(value: bytes) -> None: ...

iv = property(get_iv, set_iv)

Default Value

Remarks

This property specifies the initialization vector (IV). By default this property is empty and the class will automatically generate a new iv value if key_password or key is set before encrypt or encrypt_block is called. The size of the IV property must be equal to the BlockSize divided by 8.

key Property

The secret key for the symmetric algorithm.

Syntax

def get_key() -> bytes: ...
def set_key(value: bytes) -> None: ...

key = property(get_key, set_key)

Default Value

Remarks

This secret key is used both for encryption and decryption. The secret key should be known only to the sender and the receiver. The legal key size varies depending on the algorithm.

If this property is left empty and key_password is specified, a key value will be generated by the class as necessary.

Legal Key and Block Sizes (in bits)


	AES	Rijndael	CAST	DES	IDEA	RC2	RC4	TripleDES	Blowfish	Twofish	TEA
Minimum Key Size	128	128	112	64	128	112	112	128	112	128	128
Maximum Key Size	256	256	128	64	128	128	2048	192	448	256	128
Key Size Step	64	64	8	0	0	8	8	64	1	8	0
Block Size	128	128/192/256	64	64	64	64	N/A	64	64	128	64*

Note: When using TEA if algorithm is set to XXTEA valid block sizes are 64 + n * 32. Where n is any positive integer.

The default KeySize is the Maximum Key Size.

key_password Property

A password to generate the Key and IV .

Syntax

def get_key_password() -> str: ...
def set_key_password(value: str) -> None: ...

key_password = property(get_key_password, set_key_password)

Default Value

Remarks

When this property is set the class will calculate values for key and iv using the PKCS5 password digest algorithm. This provides a simpler alternative to creating and managing key and iv values directly.

The size of the key generated is dependent on the value of KeySize.

output_file Property

The output file when encrypting or decrypting.

Syntax

def get_output_file() -> str: ...
def set_output_file(value: str) -> None: ...

output_file = property(get_output_file, set_output_file)

Default Value

Remarks

This property specifies the file to which the output will be written when encrypt or decrypt is called. This may be set to an absolute or relative path.

This property is only applicable to encrypt and decrypt.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

input_file
input_message

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

output_file
output_message: The output data is written to this property if no other destination is specified.

output_message Property

The output message after processing.

Syntax

def get_output_message() -> bytes: ...

output_message = property(get_output_message, None)

Default Value

Remarks

This property will be populated with the output from the operation if output_file is not set.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

input_file
input_message

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

output_file
output_message: The output data is written to this property if no other destination is specified.

This property is read-only.

overwrite Property

Indicates whether or not the class should overwrite files.

Syntax

def get_overwrite() -> bool: ...
def set_overwrite(value: bool) -> None: ...

overwrite = property(get_overwrite, set_overwrite)

Default Value

FALSE

Remarks

This property indicates whether or not the class will overwrite output_file. If overwrite is False, an error will be thrown whenever output_file exists before an operation. The default value is False.

padding_mode Property

The padding mode.

Syntax

def get_padding_mode() -> int: ...
def set_padding_mode(value: int) -> None: ...

padding_mode = property(get_padding_mode, set_padding_mode)

Default Value

Remarks

PaddingMode is used to pad the final input block to guarantee that it is the correct size required for the selected cipher_mode. If the input size is a multiple of the cipher's BlockSize, an extra block of padding will be appended to the input. This enables the decrypting agent to know with certainty how many bytes of padding are included. Each mode pads the data differently. Possible values are:


0 (pmPKCS7 - default)	The data is padded with a series of bytes that are each equal to the number of bytes used. For instance, in the example below the data must be padded with 3 additional bytes, so each byte value will be 3. Raw Data: `AA AA AA AA AA` PKCS7 Padded Data: `AA AA AA AA AA 03 03 03`
1 (pmZeros)	The data is padded with null bytes.
2 (pmNone)	No padding will be performed.
3 (pmANSIX923)	The ANSIX923 padding string consists of a sequence of bytes filled with zeros before the length. For instance, in the example below the data must be padded with 3 additional bytes, so last byte value will be 3. Raw Data: `AA AA AA AA AA` ANSIX923 padding Data: `AA AA AA AA AA 00 00 03`
4 (pmISO10126)	The ISO10126 padding string consists of random data before the length. For instance, in the example below the data must be padded with 3 additional bytes, so last byte value will be 3. Raw Data: `AA AA AA AA AA` ISO10126 padding Data: `AA AA AA AA AA F8 EF 03`

When calling decrypt the padding_mode must match the value used when the data was encrypted.

Note: When using a value of 2 (pmNone), unless the length of input is an exact multiple of the cipher's input BlockSize, the final block of plaintext may be lost.

use_hex Property

Whether input or output is hex encoded.

Syntax

def get_use_hex() -> bool: ...
def set_use_hex(value: bool) -> None: ...

use_hex = property(get_use_hex, set_use_hex)

Default Value

FALSE

Remarks

This property specifies whether the encrypted data is hex encoded.

If set to True, when encrypt is called the class will perform the encryption as normal and then hex encode the output. output_message or output_file will hold hex encoded data.

If set to True, when decrypt is called the class will expect input_message or input_file to hold hex encoded data. The class will then hex decode the data and perform decryption as normal.

config Method

Sets or retrieves a configuration setting.

Syntax

def config(configuration_string: str) -> str: ...

Remarks

config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

decrypt Method

Decrypts the data.

Syntax

def decrypt() -> None: ...

Remarks

This method will decrypt the specified data. The following properties are applicable:

iv (required)
key (required)
cipher_mode
padding_mode

Note that cipher_mode must be set to the same value used during encryption or the results may be unexpected. If the cipher_mode value does not match the value used during encryption the operation may succeed but the decrypted data may not be correct.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

input_file
input_message

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

output_file
output_message: The output data is written to this property if no other destination is specified.

decrypt_block Method

Decrypts a block and returns the decrypted data.

Syntax

def decrypt_block(input_buffer: bytes, last_block: bool) -> bytes: ...

Remarks

This method will decrypt the specified block and return the decrypted data.

InputBuffer specifies the encrypted block to decrypt.

LastBlock indicates whether the block is the last block.

encrypt Method

Encrypts the data.

Syntax

def encrypt() -> None: ...

Remarks

This method will encrypt the specified data. The following properties are applicable:

iv (required)
key (required)
padding_mode
cipher_mode

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

input_file
input_message

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

output_file
output_message: The output data is written to this property if no other destination is specified.

encrypt_block Method

Encrypts data and returns the encrypted block.

Syntax

def encrypt_block(input_buffer: bytes, last_block: bool) -> bytes: ...

Remarks

This method will encrypt the input data and return the encrypted block.

InputBuffer specifies the input data to encrypt.

LastBlock specifies whether the block is the last block.

reset Method

Resets the class.

Syntax

def reset() -> None: ...

Remarks

When called, the class will reset all of its properties to their default values.

on_error Event

Fired when information is available about errors during data delivery.

Syntax

class CASTErrorEventParams(object):
  @property
  def error_code() -> int: ...

  @property
  def description() -> str: ...

# In class CAST:
@property
def on_error() -> Callable[[CASTErrorEventParams], None]: ...
@on_error.setter
def on_error(event_hook: Callable[[CASTErrorEventParams], None]) -> None: ...

Remarks

The on_error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

on_progress Event

Fired as progress is made.

Syntax

class CASTProgressEventParams(object):
  @property
  def bytes_processed() -> int: ...

  @property
  def percent_processed() -> int: ...

# In class CAST:
@property
def on_progress() -> Callable[[CASTProgressEventParams], None]: ...
@on_progress.setter
def on_progress(event_hook: Callable[[CASTProgressEventParams], None]) -> None: ...

Remarks

This event is fired automatically as data is processed by the class.

The PercentProcessed parameter indicates the current status of the operation.

The BytesProcessed parameter holds the total number of bytes processed so far.

CAST Config Settings

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

CAST Config Settings

BlockSize: The block size, in bits, of the cryptographic operation.

The block size is a basic data unit in the operation of encrypt or decrypt. Messages longer than the block size are seen as successive blocks. If the message is shorter than the block size, the message will be padded with extra bits to reach the block size according to padding_mode. Different symmetric algorithm has different valid block sizes.

The following algorithms have a fixed block size: AES, CAST, DES, IDEA, RC2, TripleDES, Blowfish, and Twofish.

EncryptedDataEncoding: The encoding of the encrypted input or output data.

This configuration setting specifies how the encrypted data is encoded (if at all).

When encrypt is called the class will perform the encryption as normal and then encode the output as specified here. output_message or output_file will hold the encoded data.

When decrypt is called the class will expect input_message or input_file to hold the encoded data as specified here. The class will then decode the data and perform decryption as normal.

Possible values are:

0 (none - default)
1 (Base64)
2 (Hex)
3 (Base64URL)

IncludeIV: Whether to prepend the IV to the output data and read the IV from the input data.

If this config is true, the IV will be automatically prepended to the output data when calling encrypt. When calling decrypt and this setting is True, the IV is automatically extracted form the ciphertext. The default value is False.

KeyPasswordAlgorithm: The hash algorithm used to derive the Key and IV from the KeyPassword property.

This configuration setting specifies which hash algorithm will be used when deriving the key and iv from key_password. The default value is "MD5". Possible values are:

"SHA1"
"MD2"
"MD5" (default)
"HMAC-SHA1"
"HMAC-SHA224"
"HMAC-SHA256"
"HMAC-SHA384"
"HMAC-SHA512"
"HMAC-MD5"
"HMAC-RIPEMD160"

When using any HMAC algorithm the PBKDF#2 method from RFC 2898 is used. Any other algorithm uses PBKDF#1 from the same RFC.

KeyPasswordIterations: The number of iterations performed when using KeyPassword to derive the Key and IV.

This configuration setting specifies the number of iterations performed when using key_password to calculate values for key and iv. When using PBKDF#2 the default number of iterations is 10,000. When using PBKDF#1 the default number is 10.

KeyPasswordSalt: The salt value used in conjunction with the KeyPassword to derive the Key and IV.

This configuration setting specifies the hex encoded salt value to be used along with the key_password when calculating values for key and iv.

KeySize: The size, in bits, of secret key for the symmetric algorithm.

The legal key sizes vary depending on the algorithm. The KeySize and BlockSize configuration settings may be set to specify the key and block size (in bits).

This setting is only applicable when key_password is specified.

Note that when using the EzCrypt class, KeySize should be set after setting the algorithm property.

Base Config Settings

BuildInfo: Information about the product's build.

When queried, this setting will return a string containing information about the product's build.

CodePage: The system code page used for Unicode to Multibyte translations.

The default code page is Unicode UTF-8 (65001).

The following is a list of valid code page identifiers:


Identifier	Name
037	IBM EBCDIC - U.S./Canada
437	OEM - United States
500	IBM EBCDIC - International
708	Arabic - ASMO 708
709	Arabic - ASMO 449+, BCON V4
710	Arabic - Transparent Arabic
720	Arabic - Transparent ASMO
737	OEM - Greek (formerly 437G)
775	OEM - Baltic
850	OEM - Multilingual Latin I
852	OEM - Latin II
855	OEM - Cyrillic (primarily Russian)
857	OEM - Turkish
858	OEM - Multilingual Latin I + Euro symbol
860	OEM - Portuguese
861	OEM - Icelandic
862	OEM - Hebrew
863	OEM - Canadian-French
864	OEM - Arabic
865	OEM - Nordic
866	OEM - Russian
869	OEM - Modern Greek
870	IBM EBCDIC - Multilingual/ROECE (Latin-2)
874	ANSI/OEM - Thai (same as 28605, ISO 8859-15)
875	IBM EBCDIC - Modern Greek
932	ANSI/OEM - Japanese, Shift-JIS
936	ANSI/OEM - Simplified Chinese (PRC, Singapore)
949	ANSI/OEM - Korean (Unified Hangul Code)
950	ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
1026	IBM EBCDIC - Turkish (Latin-5)
1047	IBM EBCDIC - Latin 1/Open System
1140	IBM EBCDIC - U.S./Canada (037 + Euro symbol)
1141	IBM EBCDIC - Germany (20273 + Euro symbol)
1142	IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
1143	IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
1144	IBM EBCDIC - Italy (20280 + Euro symbol)
1145	IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
1146	IBM EBCDIC - United Kingdom (20285 + Euro symbol)
1147	IBM EBCDIC - France (20297 + Euro symbol)
1148	IBM EBCDIC - International (500 + Euro symbol)
1149	IBM EBCDIC - Icelandic (20871 + Euro symbol)
1200	Unicode UCS-2 Little-Endian (BMP of ISO 10646)
1201	Unicode UCS-2 Big-Endian
1250	ANSI - Central European
1251	ANSI - Cyrillic
1252	ANSI - Latin I
1253	ANSI - Greek
1254	ANSI - Turkish
1255	ANSI - Hebrew
1256	ANSI - Arabic
1257	ANSI - Baltic
1258	ANSI/OEM - Vietnamese
1361	Korean (Johab)
10000	MAC - Roman
10001	MAC - Japanese
10002	MAC - Traditional Chinese (Big5)
10003	MAC - Korean
10004	MAC - Arabic
10005	MAC - Hebrew
10006	MAC - Greek I
10007	MAC - Cyrillic
10008	MAC - Simplified Chinese (GB 2312)
10010	MAC - Romania
10017	MAC - Ukraine
10021	MAC - Thai
10029	MAC - Latin II
10079	MAC - Icelandic
10081	MAC - Turkish
10082	MAC - Croatia
12000	Unicode UCS-4 Little-Endian
12001	Unicode UCS-4 Big-Endian
20000	CNS - Taiwan
20001	TCA - Taiwan
20002	Eten - Taiwan
20003	IBM5550 - Taiwan
20004	TeleText - Taiwan
20005	Wang - Taiwan
20105	IA5 IRV International Alphabet No. 5 (7-bit)
20106	IA5 German (7-bit)
20107	IA5 Swedish (7-bit)
20108	IA5 Norwegian (7-bit)
20127	US-ASCII (7-bit)
20261	T.61
20269	ISO 6937 Non-Spacing Accent
20273	IBM EBCDIC - Germany
20277	IBM EBCDIC - Denmark/Norway
20278	IBM EBCDIC - Finland/Sweden
20280	IBM EBCDIC - Italy
20284	IBM EBCDIC - Latin America/Spain
20285	IBM EBCDIC - United Kingdom
20290	IBM EBCDIC - Japanese Katakana Extended
20297	IBM EBCDIC - France
20420	IBM EBCDIC - Arabic
20423	IBM EBCDIC - Greek
20424	IBM EBCDIC - Hebrew
20833	IBM EBCDIC - Korean Extended
20838	IBM EBCDIC - Thai
20866	Russian - KOI8-R
20871	IBM EBCDIC - Icelandic
20880	IBM EBCDIC - Cyrillic (Russian)
20905	IBM EBCDIC - Turkish
20924	IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
20932	JIS X 0208-1990 & 0121-1990
20936	Simplified Chinese (GB2312)
21025	IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
21027	Extended Alpha Lowercase
21866	Ukrainian (KOI8-U)
28591	ISO 8859-1 Latin I
28592	ISO 8859-2 Central Europe
28593	ISO 8859-3 Latin 3
28594	ISO 8859-4 Baltic
28595	ISO 8859-5 Cyrillic
28596	ISO 8859-6 Arabic
28597	ISO 8859-7 Greek
28598	ISO 8859-8 Hebrew
28599	ISO 8859-9 Latin 5
28605	ISO 8859-15 Latin 9
29001	Europa 3
38598	ISO 8859-8 Hebrew
50220	ISO 2022 Japanese with no halfwidth Katakana
50221	ISO 2022 Japanese with halfwidth Katakana
50222	ISO 2022 Japanese JIS X 0201-1989
50225	ISO 2022 Korean
50227	ISO 2022 Simplified Chinese
50229	ISO 2022 Traditional Chinese
50930	Japanese (Katakana) Extended
50931	US/Canada and Japanese
50933	Korean Extended and Korean
50935	Simplified Chinese Extended and Simplified Chinese
50936	Simplified Chinese
50937	US/Canada and Traditional Chinese
50939	Japanese (Latin) Extended and Japanese
51932	EUC - Japanese
51936	EUC - Simplified Chinese
51949	EUC - Korean
51950	EUC - Traditional Chinese
52936	HZ-GB2312 Simplified Chinese
54936	Windows XP: GB18030 Simplified Chinese (4 Byte)
57002	ISCII Devanagari
57003	ISCII Bengali
57004	ISCII Tamil
57005	ISCII Telugu
57006	ISCII Assamese
57007	ISCII Oriya
57008	ISCII Kannada
57009	ISCII Malayalam
57010	ISCII Gujarati
57011	ISCII Punjabi
65000	Unicode UTF-7
65001	Unicode UTF-8

The following is a list of valid code page identifiers for Mac OS only:


Identifier	Name
1	ASCII
2	NEXTSTEP
3	JapaneseEUC
4	UTF8
5	ISOLatin1
6	Symbol
7	NonLossyASCII
8	ShiftJIS
9	ISOLatin2
10	Unicode
11	WindowsCP1251
12	WindowsCP1252
13	WindowsCP1253
14	WindowsCP1254
15	WindowsCP1250
21	ISO2022JP
30	MacOSRoman
10	UTF16String
0x90000100	UTF16BigEndian
0x94000100	UTF16LittleEndian
0x8c000100	UTF32String
0x98000100	UTF32BigEndian
0x9c000100	UTF32LittleEndian
65536	Proprietary

LicenseInfo: Information about the current license.

When queried, this setting will return a string containing information about the license this instance of a class is using. It will return the following information:

Product: The product the license is for.
Product Key: The key the license was generated from.
License Source: Where the license was found (e.g., RuntimeLicense, License File).
License Type: The type of license installed (e.g., Royalty Free, Single Server).
Last Valid Build: The last valid build number for which the license will work.

MaskSensitive: Whether sensitive data is masked in log messages.

In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to True to mask sensitive data. The default is True.

This setting only works on these classes: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

ProcessIdleEvents: Whether the class uses its internal event loop to process events when the main thread is idle.

If set to False, the class will not fire internal idle events. Set this to False to use the class in a background thread on Mac OS. By default, this setting is True.

SelectWaitMillis: The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.

If there are no events to process when do_events is called, the class will wait for the amount of time specified here before returning. The default value is 20.

UseInternalSecurityAPI: Whether or not to use the system security libraries or an internal implementation.

When set to False, the class will use the system security libraries by default to perform cryptographic functions where applicable.

Setting this configuration setting to True tells the class to use the internal implementation instead of using the system security libraries.

On Windows, this setting is set to False by default. On Linux/macOS, this setting is set to True by default.

To use the system security libraries for Linux, OpenSSL support must be enabled. For more information on how to enable OpenSSL, please refer to the OpenSSL Notes section.

CAST Errors


	101 Unsupported algorithm.
	102 No Key specified.
	103 No IV specified.
	104 Cannot read or write file.
	107 Block size is not valid for this algorithm.
	108 Key size is not valid for this algorithm.
	111 OutputFile already exists and Overwrite is False.
	121 The specified key is invalid.
	123 IV size is not valid for this algorithm.
	304 Cannot write file.
	305 Cannot read file.
	306 Cannot create file.
	2004 Invalid padding. This may be an indication that the key is incorrect.