tango.util.cipher.Cipher

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class Cipher [abstract] ¶#

Base symmetric cipher class

uint update(void[] input_, void[] output_) [abstract] ¶#

Process a block of plaintext data from the input array and place it in the output array.

Params:

input_	Array containing input data.
output_	Array to hold the output data.

Returns:

The amount of encrypted data processed.

string name() [abstract] ¶#

Returns:

The name of the algorithm of this cipher.

void reset() [abstract] ¶#

Reset cipher to its state immediately subsequent the last init.

void invalid(char[] msg) [static] ¶#

throw an InvalidArgument exception

Params:

msg	message to associate with the exception

bool initialized() [final] ¶#

Returns:

Whether or not the cipher has been initialized.

class BlockCipher : Cipher [abstract] ¶#

Interface for a standard block cipher.

uint blockSize() [abstract] ¶#

Returns:

The block size in bytes that this cipher will operate on.

class StreamCipher : Cipher [abstract] ¶#

Interface for a standard stream cipher.

ubyte returnByte(ubyte input) [abstract] ¶#

Process one byte of input.

Params:

input

Byte to XOR with keystream.

Returns:

One byte of input XORed with the keystream.

class BlockCipherPadding [abstract] ¶#

Base padding class for implementing block padding schemes.

string name() [abstract] ¶#

Returns:

The name of the padding scheme implemented.

ubyte[] pad(uint len) [abstract] ¶#

Generate padding to a specific length.

Params:

len	Length of padding to generate

Returns:

The padding bytes to be added.

uint unpad(void[] input_) [abstract] ¶#

Return the number of pad bytes in the block.

Params:

input_

Padded block of which to count the pad bytes.

Returns:

The number of pad bytes in the block.

Throws:

dcrypt.crypto.errors.InvalidPaddingError if pad length cannot be discerned.

struct ByteConverter ¶#

Converts between integral types and unsigned byte arrays

struct LittleEndian ¶#

Conversions between little endian integrals and bytes

T to(T)(void[] x_) [static] ¶#

Converts the supplied array to integral type T

Params:

x_	The supplied array of bytes (ubytes, bytes, chars, whatever)

Returns:

A integral of type T created with the supplied bytes placed in the specified byte order.

void from(T)(T input, ubyte[] output) [static] ¶#

Converts the supplied integral to an array of unsigned bytes.

Params:

input

Integral to convert to bytes

Returns:

Integral input of type T split into its respective bytes with the bytes placed in the specified byte order.

struct BigEndian ¶#

Conversions between big endian integrals and bytes