madara::filters::AESBufferFilter Class Reference

Encrypts a buffer with 256 bit AES via OpenSSL. More...

#include <AESBufferFilter.h>

Inheritance diagram for madara::filters::AESBufferFilter:

Public Member Functions
	AESBufferFilter ()
	Constructor. More...
	AESBufferFilter (const AESBufferFilter &input)
	Copy constructor. More...
	AESBufferFilter (unsigned char *key, int key_length)
	256 bit key constructor More...
virtual	~AESBufferFilter ()
	Destructor. More...
virtual int	decode (unsigned char *source, int size, int max_size) const
	Decodes the buffer in place using AES encryption. More...
virtual int	encode (unsigned char *source, int size, int max_size) const
	Encodes the buffer in place using AES encryption. More...
int	generate_key (const std::string &password)
	Generates a 256 bit key from a password. More...

Private Attributes
utility::ScopedArray< unsigned char >	iv_
	initialization vector More...
utility::ScopedArray< unsigned char >	key_
	the user's cypher key More...

Detailed Description

Encrypts a buffer with 256 bit AES via OpenSSL.

Definition at line 29 of file AESBufferFilter.h.

Constructor & Destructor Documentation

madara::filters::AESBufferFilter::AESBufferFilter

(

)

Constructor.

Definition at line 14 of file AESBufferFilter.cpp.

madara::filters::AESBufferFilter::AESBufferFilter

(

const AESBufferFilter &

input

)

Copy constructor.

Parameters

input

the buffer filter to copy

Definition at line 21 of file AESBufferFilter.cpp.

madara::filters::AESBufferFilter::AESBufferFilter	(	unsigned char *	key,
		int	key_length
	)

256 bit key constructor

Parameters

key	the key to use for encryption
key_length	the length of the key

Definition at line 29 of file AESBufferFilter.cpp.

madara::filters::AESBufferFilter::~AESBufferFilter ( )

virtual

Destructor.

Definition at line 37 of file AESBufferFilter.cpp.

Member Function Documentation

int madara::filters::AESBufferFilter::decode ( unsigned char *  source, int  size, int  max_size  ) const

virtual

Decodes the buffer in place using AES encryption.

Parameters

source	the source and destination buffer
size	the amount of data in the buffer in bytes
max_size	the amount of bytes the buffer can hold

Returns

the new size after decoding

decryption context

Implements madara::filters::BufferFilter.

Definition at line 150 of file AESBufferFilter.cpp.

int madara::filters::AESBufferFilter::encode ( unsigned char *  source, int  size, int  max_size  ) const

virtual

Encodes the buffer in place using AES encryption.

Parameters

source	the source and destination buffer
size	the amount of data in the buffer in bytes
max_size	the amount of bytes the buffer can hold

Returns

the new size after encoding

encryption context

Implements madara::filters::BufferFilter.

Definition at line 69 of file AESBufferFilter.cpp.

int madara::filters::AESBufferFilter::generate_key

(

const std::string &

password

)

Generates a 256 bit key from a password.

Parameters

password

a password to seed the key with

Returns

0 on success, -1 on error

Definition at line 41 of file AESBufferFilter.cpp.

Member Data Documentation

utility::ScopedArray<unsigned char> madara::filters::AESBufferFilter::iv_

private

initialization vector

Definition at line 86 of file AESBufferFilter.h.

utility::ScopedArray<unsigned char> madara::filters::AESBufferFilter::key_

private

the user's cypher key

Definition at line 83 of file AESBufferFilter.h.

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The documentation for this class was generated from the following files:

• include/madara/filters/ssl/AESBufferFilter.h
• include/madara/filters/ssl/AESBufferFilter.cpp