#include <aes_encryptor.h>

Inheritance diagram for rosbag::AesCbcEncryptor:

Public Member Functions
void	addFieldsToFileHeader (ros::M_string &header_fields) const
	Add encryptor information to bag file header. More...

	AesCbcEncryptor ()

void	decryptChunk (ChunkHeader const &chunk_header, Buffer &decrypted_chunk, ChunkedFile &file) const
	Decrypt chunk. More...

uint32_t	encryptChunk (const uint32_t chunk_size, const uint64_t chunk_data_pos, ChunkedFile &file)
	Encrypt chunk. More...

void	initialize (Bag const &bag, std::string const &gpg_key_user)
	Initialize encryptor. More...

bool	readEncryptedHeader (boost::function< bool(ros::Header &)>, ros::Header &header, Buffer &header_buffer, ChunkedFile &)
	Read encrypted header from bag file. More...

void	readFieldsFromFileHeader (ros::M_string const &header_fields)
	Read encryptor information from bag file header. More...

void	writeEncryptedHeader (boost::function< void(ros::M_string const &)>, ros::M_string const &header_fields, ChunkedFile &)
	Write encrypted header to bag file. More...

	~AesCbcEncryptor ()

Public Member Functions inherited from rosbag::EncryptorBase
virtual	~EncryptorBase ()

Static Public Attributes
static const std::string	ENCRYPTED_KEY_FIELD_NAME = "encrypted_key"

static const std::string	GPG_USER_FIELD_NAME = "gpg_user"

Private Member Functions
void	buildSymmetricKey ()

Private Attributes
AES_KEY	aes_decrypt_key_

AES_KEY	aes_encrypt_key_

std::string	encrypted_symmetric_key_

std::string	gpg_key_user_

std::basic_string< unsigned char >	symmetric_key_

Additional Inherited Members
Protected Member Functions inherited from rosbag::EncryptorBase
	EncryptorBase ()

Detailed Description

Definition at line 45 of file aes_encryptor.h.

Constructor & Destructor Documentation

◆ AesCbcEncryptor()

rosbag::AesCbcEncryptor::AesCbcEncryptor ( )

inline

Definition at line 52 of file aes_encryptor.h.

◆ ~AesCbcEncryptor()

rosbag::AesCbcEncryptor::~AesCbcEncryptor ( )

inline

Definition at line 53 of file aes_encryptor.h.

Member Function Documentation

◆ addFieldsToFileHeader()

void rosbag::AesCbcEncryptor::addFieldsToFileHeader ( ros::M_string & header_fields ) const

virtual

Add encryptor information to bag file header.

Parameters

header_fields The header fields of the bag

Called for a bag being written, this method adds encryptor-specific fields to the bag file header. Those fields are used when decrypting the bag. ENCRYPTOR_FIELD_NAME must be specified in the header except for NoEncryptor.

Implements rosbag::EncryptorBase.

Definition at line 242 of file aes_encryptor.cpp.

◆ buildSymmetricKey()

void rosbag::AesCbcEncryptor::buildSymmetricKey ( )

private

Definition at line 313 of file aes_encryptor.cpp.

◆ decryptChunk()

void rosbag::AesCbcEncryptor::decryptChunk	(	ChunkHeader const &	chunk_header,
		Buffer &	decrypted_chunk,
		ChunkedFile &	file
	)		const

virtual

Decrypt chunk.

Parameters

chunk_header	The header of the encrypted chunk
decrypted_chunk	The buffer where decrypted chunk is written to
file	The bag file stream from which the encrypted chunk is read

This method reads the encrypted chunk from file stream, decrypts, and writes it to decrypted_chunk.

Implements rosbag::EncryptorBase.

Definition at line 219 of file aes_encryptor.cpp.

◆ encryptChunk()

uint32_t rosbag::AesCbcEncryptor::encryptChunk	(	const uint32_t	chunk_size,
		const uint64_t	chunk_data_pos,
		ChunkedFile &	file
	)

virtual

Encrypt chunk.

Returns: The byte size of the encrypted chunk

Parameters

chunk_size	The byte size of the original chunk
chunk_data_pos	The start position of the chunk data in bag file stream
file	The bag file stream

This method reads the original chunk from [chunk_data_pos, chunk_data_pos+chunk_size), encrypts it, and writes back to the file stream starting at chunk_data_pos.

Implements rosbag::EncryptorBase.

Definition at line 196 of file aes_encryptor.cpp.

◆ initialize()

void rosbag::AesCbcEncryptor::initialize	(	Bag const &	bag,
		std::string const &	plugin_param
	)

virtual

Initialize encryptor.

Parameters

bag	The Bag instance
plugin_param	The string parameter used while initializing the encryptor

This method is called by setEncryptorPlugin, which loads an encryptor plugin.

Implements rosbag::EncryptorBase.

Definition at line 175 of file aes_encryptor.cpp.

◆ readEncryptedHeader()

bool rosbag::AesCbcEncryptor::readEncryptedHeader	(	boost::function< bool(ros::Header &)>	read_header,
		ros::Header &	header,
		Buffer &	header_buffer,
		ChunkedFile &	file
	)

virtual

Read encrypted header from bag file.

Parameters

read_header	The functor reading unencrypted header
header	The header object read
header_buffer	The header buffer read
file	The bag file stream

This method reads and decrypts encrypted header to output header object (header) and buffer (header_buffer).

Implements rosbag::EncryptorBase.

Definition at line 285 of file aes_encryptor.cpp.

◆ readFieldsFromFileHeader()

void rosbag::AesCbcEncryptor::readFieldsFromFileHeader ( ros::M_string const & header_fields )

virtual

Read encryptor information from bag file header.

Parameters

header_fields The header fields of the bag

Called for a bag being read, this method reads encryptor-specific fields from the bag file header.

Implements rosbag::EncryptorBase.

Definition at line 248 of file aes_encryptor.cpp.

◆ writeEncryptedHeader()

void rosbag::AesCbcEncryptor::writeEncryptedHeader	(	boost::function< void(ros::M_string const &)>	write_header,
		ros::M_string const &	header_fields,
		ChunkedFile &	file
	)

virtual

Write encrypted header to bag file.

Parameters

write_header	The functor writing unencrypted header
header_fields	The header fields to be written
file	The bag file stream

This method encrypts given header fields, and writes them to the bag file.

Implements rosbag::EncryptorBase.

Definition at line 261 of file aes_encryptor.cpp.

Member Data Documentation

◆ aes_decrypt_key_

AES_KEY rosbag::AesCbcEncryptor::aes_decrypt_key_

private

Definition at line 75 of file aes_encryptor.h.

◆ aes_encrypt_key_

AES_KEY rosbag::AesCbcEncryptor::aes_encrypt_key_

private

Definition at line 74 of file aes_encryptor.h.

◆ ENCRYPTED_KEY_FIELD_NAME

const std::string rosbag::AesCbcEncryptor::ENCRYPTED_KEY_FIELD_NAME = "encrypted_key"

static

Definition at line 49 of file aes_encryptor.h.

◆ encrypted_symmetric_key_

std::string rosbag::AesCbcEncryptor::encrypted_symmetric_key_

private

Definition at line 72 of file aes_encryptor.h.

◆ gpg_key_user_

std::string rosbag::AesCbcEncryptor::gpg_key_user_

private

Definition at line 68 of file aes_encryptor.h.

◆ GPG_USER_FIELD_NAME

const std::string rosbag::AesCbcEncryptor::GPG_USER_FIELD_NAME = "gpg_user"

static

Definition at line 48 of file aes_encryptor.h.

◆ symmetric_key_

std::basic_string<unsigned char> rosbag::AesCbcEncryptor::symmetric_key_

private

Definition at line 70 of file aes_encryptor.h.

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

Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AesCbcEncryptor()

◆ ~AesCbcEncryptor()

Member Function Documentation

◆ addFieldsToFileHeader()

◆ buildSymmetricKey()

◆ decryptChunk()

◆ encryptChunk()

◆ initialize()

◆ readEncryptedHeader()

◆ readFieldsFromFileHeader()

◆ writeEncryptedHeader()

Member Data Documentation

◆ aes_decrypt_key_

◆ aes_encrypt_key_

◆ ENCRYPTED_KEY_FIELD_NAME

◆ encrypted_symmetric_key_

◆ gpg_key_user_

◆ GPG_USER_FIELD_NAME

◆ symmetric_key_