PICrypt Class Reference

Class for encrypting and decrypting data. More...

#include <picrypt.h>

Public Member Functions
	PICrypt ()
	Constructor that generates a random key.
bool	setKey (const PIByteArray &key)
	Set key to "key", key size must be a sizeKey()
bool	setKey (const PIString &secret)
	Generate and set key from keyphrase "secret".
PIByteArray	key ()
	Returns current key.
PIByteArray	crypt (const PIByteArray &data)
	Encrypt given data "data", result size will be increased by sizeCrypt()
PIByteArray	decrypt (const PIByteArray &crypt_data, bool *ok=0)
	Decrypt given data "crypt_data".
PIByteArray	signMessage (const PIByteArray &data, const PIByteArray &secret_key)
	Calculate digital signature for data.
bool	verifySign (const PIByteArray &data, const PIByteArray &signature, const PIByteArray &public_key)
	Verify digital signature of signed message.
PIByteArray	crypt (const PIByteArray &data, const PIByteArray &public_key, const PIByteArray &secret_key)
	Encrypt given data "data".
PIByteArray	decrypt (const PIByteArray &crypt_data, const PIByteArray &public_key, const PIByteArray &secret_key, bool *ok=0)
	Decrypt given data "crypt_data".

Static Public Member Functions
static PIByteArray	crypt (const PIByteArray &data, PIByteArray key)
	Encrypt given data "data" with key "key", result size will be increased by sizeCrypt()
static PIByteArray	decrypt (const PIByteArray &crypt_data, PIByteArray key, bool *ok=0)
	Decrypt given data "crypt_data" with key "key".
static PIByteArray	hash (PIString secret)
	Generate hash from keyphrase "secret", may be used as a key for encryption.
static PIByteArray	hash (const PIByteArray &data)
	Generate hash from bytearray.
static PIByteArray	hash (const PIByteArray &data, const unsigned char *key, size_t keylen)
	Generate hash from bytearray.
static size_t	sizeHash ()
	Returns hash size.
static ullong	shorthash (const PIString &s, PIByteArray key=PIByteArray())
	Generate short hash from string "s", may be used for hash table.
static PIByteArray	generateKey ()
	Generate random key.
static PIByteArray	generateRandomBuff (int size)
	Generate random buffer.
static size_t	sizeKey ()
	Returns key size.
static size_t	sizeCrypt ()
	Returns size which be added to data size in encryption process.
static bool	generateSignKeys (PIByteArray &public_key, PIByteArray &secret_key)
	Function randomly generates a secret key and a corresponding public key for digital signature.
static bool	generateSignKeys (PIByteArray &public_key, PIByteArray &secret_key, const PIByteArray &seed)
	Function generates a secret key from input data and a corresponding public key for digital signature.
static PIByteArray	extractSignPublicKey (const PIByteArray &secret_key)
	Function extract sign public key from sing secret key.
static bool	generateKeypair (PIByteArray &public_key, PIByteArray &secret_key)
	Function randomly generates a secret key and a corresponding public key for authenticated encryption.
static bool	generateKeypair (PIByteArray &public_key, PIByteArray &secret_key, const PIByteArray &seed)
	Function generates a secret key from input data and a corresponding public key for authenticated encryption.
static PIByteArray	passwordHash (PIString password, const PIByteArray &seed)
	Generate password hash from "password".
static PIString	version ()
	Returns libsodium version.

Detailed Description

Class for encrypting and decrypting data.