Package jadex.commons.security.random

Class OpenSslAesCtr

java.lang.Object

jadex.commons.security.random.OpenSslAesCtr

public class OpenSslAesCtr
extends java.lang.Object

Access to OpenSSL AES counter mode.

Field Summary

Fields

Modifier and Type	Field	Description
protected static byte[]	BUFFER_INPUT	Empty static input buffer as source
protected static com.sun.jna.ptr.IntByReference	BUFFER_SIZE_P	Buffer size as C reference.
protected com.sun.jna.Pointer	evpCipherContext	Current cipher context.
static java.lang.String	JNA_LIBRARY_NAME	OpenSSL Crypto lib name.
static com.sun.jna.NativeLibrary	JNA_NATIVE_LIB	OpenSSL Crypto lib.

Constructor Summary

Constructors

Constructor	Description
OpenSslAesCtr()	Create an instance.

Method Summary

Modifier and Type	Method	Description
static void	ERR_load_crypto_strings()
static void	ERR_print_errors_fp(com.sun.jna.Pointer fp)
static com.sun.jna.Pointer	EVP_aes_128_ctr()
static com.sun.jna.Pointer	EVP_aes_256_ctr()
static com.sun.jna.Pointer	EVP_aes_256_ecb()
static void	EVP_CIPHER_CTX_free(com.sun.jna.Pointer ctx)
static com.sun.jna.Pointer	EVP_CIPHER_CTX_new()
static int	EVP_CIPHER_CTX_set_padding(com.sun.jna.Pointer context, int padding)
static int	EVP_EncryptFinal_ex(com.sun.jna.Pointer ctx, byte[] out, com.sun.jna.ptr.IntByReference outlen)
static int	EVP_EncryptInit_ex(com.sun.jna.Pointer context, com.sun.jna.Pointer ciphertype, com.sun.jna.Pointer impl, byte[] key, byte[] iv)
static int	EVP_EncryptUpdate(com.sun.jna.Pointer context, byte[] out, com.sun.jna.ptr.IntByReference outlen, byte[] in, int inlen)
void	init(byte[] key, byte[] iv)	Initialize the cipher.
static boolean	isEnabled()	Checks if the library is in a usable state.
byte[]	nextBytes()	Retrieves the next buffer of random values.
static void	OpenSSL_add_all_ciphers()
static void	OPENSSL_config(java.lang.String config_name)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

JNA_LIBRARY_NAME

public static final java.lang.String JNA_LIBRARY_NAME

OpenSSL Crypto lib name.

See Also:

Constant Field Values

JNA_NATIVE_LIB

public static final com.sun.jna.NativeLibrary JNA_NATIVE_LIB

OpenSSL Crypto lib.

BUFFER_INPUT

protected static final byte[] BUFFER_INPUT

Empty static input buffer as source

BUFFER_SIZE_P

protected static final com.sun.jna.ptr.IntByReference BUFFER_SIZE_P

Buffer size as C reference.

evpCipherContext

protected com.sun.jna.Pointer evpCipherContext

Current cipher context.

Constructor Detail

OpenSslAesCtr

public OpenSslAesCtr()

Create an instance.

Method Detail

ERR_load_crypto_strings

public static void ERR_load_crypto_strings()

OpenSSL_add_all_ciphers

public static void OpenSSL_add_all_ciphers()

OPENSSL_config

public static void OPENSSL_config(java.lang.String config_name)

EVP_CIPHER_CTX_new

public static com.sun.jna.Pointer EVP_CIPHER_CTX_new()

EVP_CIPHER_CTX_free

public static void EVP_CIPHER_CTX_free(com.sun.jna.Pointer ctx)

EVP_CIPHER_CTX_set_padding

public static int EVP_CIPHER_CTX_set_padding(com.sun.jna.Pointer context,
                                             int padding)

EVP_aes_256_ctr

public static com.sun.jna.Pointer EVP_aes_256_ctr()

EVP_aes_128_ctr

public static com.sun.jna.Pointer EVP_aes_128_ctr()

EVP_aes_256_ecb

public static com.sun.jna.Pointer EVP_aes_256_ecb()

EVP_EncryptInit_ex

public static int EVP_EncryptInit_ex(com.sun.jna.Pointer context,
                                     com.sun.jna.Pointer ciphertype,
                                     com.sun.jna.Pointer impl,
                                     byte[] key,
                                     byte[] iv)

EVP_EncryptUpdate

public static int EVP_EncryptUpdate(com.sun.jna.Pointer context,
                                    byte[] out,
                                    com.sun.jna.ptr.IntByReference outlen,
                                    byte[] in,
                                    int inlen)

EVP_EncryptFinal_ex

public static int EVP_EncryptFinal_ex(com.sun.jna.Pointer ctx,
                                      byte[] out,
                                      com.sun.jna.ptr.IntByReference outlen)

ERR_print_errors_fp

public static void ERR_print_errors_fp(com.sun.jna.Pointer fp)

isEnabled

public static final boolean isEnabled()

Checks if the library is in a usable state.

init

public void init(byte[] key,
                 byte[] iv)

Initialize the cipher.

Parameters:

key - The key.

iv - The IV to use.

nextBytes

public byte[] nextBytes()

Retrieves the next buffer of random values.

Returns:

The next buffer of random values.