cppcms::crypto::cbc Class Reference

Cipher-block chaining encryption and decryption cryptographic service. More...

#include <cppcms/crypto.h>

Inheritance diagram for cppcms::crypto::cbc:

Public Types
enum	cbc_type { aes128 = 0, aes192 = 1, aes256 = 2 }

Public Member Functions
virtual unsigned	block_size () const =0
virtual unsigned	key_size () const =0
virtual void	set_key (key const &)=0
virtual void	set_iv (void const *ptr, size_t size)=0
virtual void	set_nonce_iv ()=0
virtual void	encrypt (void const *in, void *out, unsigned len)=0
virtual void	decrypt (void const *in, void *out, unsigned len)=0

Static Public Member Functions
static std::auto_ptr< cbc >	create (cbc_type type)
static std::auto_ptr< cbc >	create (std::string const &name)

Detailed Description

Cipher-block chaining encryption and decryption cryptographic service.

Note

In order to use it, you must compile CppCMS with OpenSSL (libcrypto) or GNU-TLS (libgcrypt) library.

Member Enumeration Documentation

enum cppcms::crypto::cbc::cbc_type

CBC encryption type

Enumerator
aes128	AES-128.
aes192	AES-192.
aes256	AES-256.

Member Function Documentation

virtual unsigned cppcms::crypto::cbc::block_size ( ) const

pure virtual

Get the size of the block CBC works on

static std::auto_ptr<cbc> cppcms::crypto::cbc::create ( cbc_type  type )

static

Create a new cbc object that performs encryption using type method.

If the encryption method is not supported returns an empty pointer!

static std::auto_ptr<cbc> cppcms::crypto::cbc::create ( std::string const &  name )

static

Create a new cbc object that performs encryption using algorithm name

If the encryption method is not supported returns an empty pointer!

Currently supported aes128, aes192, aes256, with names "aes" = "aes-128" = "aes128" , "aes-192" "aes192", "aes-256" = "aes256". They require CppCMS to be compiled with OpenSSL or GNU-TLS library

virtual void cppcms::crypto::cbc::decrypt ( void const *  in, void *  out, unsigned  len  )

pure virtual

Decrypt the data in to out of size len. len should be multiple of block_size()

virtual void cppcms::crypto::cbc::encrypt ( void const *  in, void *  out, unsigned  len  )

pure virtual

Encrypt the data in to out of size len. len should be multiple of block_size()

virtual unsigned cppcms::crypto::cbc::key_size ( ) const

pure virtual

Get the required key size in bytes

virtual void cppcms::crypto::cbc::set_iv ( void const *  ptr, size_t  size  )

pure virtual

Set initial vector value, size should be equal to block_size()

virtual void cppcms::crypto::cbc::set_key ( key const &  )

pure virtual

Set the key value

virtual void cppcms::crypto::cbc::set_nonce_iv ( )

pure virtual

Set randomly created initial vector value

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

• cppcms/crypto.h