security-cpp

namespace ph::encoder

This namespace contains the definition of encoders, i.e. objects that can transform an input into an output in a specific format.

The following classes are defined in this namespace :

• basic_encoder<I,O> : base class for all encoders
• base64 : Base64 encoder / decoder
• hex : Hex (base 16) encoder / decoder

Class encoder::basic_encoder<I,O>

This class is the base class for all encoders. It defines the following members :

• basic_encoder<I,O> ::input_type - This is a type alias on the template parameter I
• basic_encoder<I,O> ::output_type - This is a type alias on the template parameter O.

Class encoder::base64

This class inherits basic_encoder<I,O>, with I = std ::vector and O = std ::string. Furthermore, the class defines the following services :

• void encode_to(const input_type& in, output_type& out) (method)
• void decode_to(const output_type& in, input_type& out) (method)

Example

string txt = "Hello world";
string output;
vector<unsigned char> input(a.begin(), a.end());
vector<unsigned char> revinput;

encoder::base64().encode_to(input, output);
encoder::base64().decode_to(output, revinput);

Class encoder::hex

This class inherits basic_encoder<I,O>, with I = std ::vector and O = std ::string. Furthermore, the class defines the following services :

• void encode_to(const input_type& in, output_type& out) (method)
• void decode_to(const output_type& in, input_type& out) (method)

Example

string txt = "Hello world";
string output;
vector<unsigned char> input(a.begin(), a.end());
vector<unsigned char> revinput;

encoder::hex().encode_to(input, output);
encoder::hex().decode_to(output, revinput);

namespace ph::security

This namespace contains class definition used to perform encryption and decryption of data. Encrypted data can be encoded to a Base64 buffer (thanks to the encoding classes in namespace ph::encoder) in order to display it, or to send it through a text stream (socket, file,...).

The namespace contains the following template classes

• symetric_cryptograph<C,RNG>
• symetric_key
• asymetric_cryptograph<C,RNG>
• asymetric_key
• public_asymetric_key

These classes are instatiated to produce the following classes

• blowfish_cryptograph = symetric_cryptograph<bf_cipher, default_rng>
• blowfish_key = symetric_key<bf_cipher>
• xor_cryptograph = symetric_cryptograph<xor_cipher, xor_rng>
• xor_key = symetric_key<xor_cipher>
• rsa_cryptograph = asymetric_cryptograph<rsa_cipher, default_rng>
• rsa_key = asymetric_key<rsa_cipher>
• rsa_public_key = public_asymetric_key<rsa_cipher>