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

Constructor Summary

Constructors

Constructor and Description
OpenSslAesCtr() Create an instance.

Method Summary

Modifier and Type	Method and Description
static void	ERR_load_crypto_strings()
static void	ERR_print_errors_fp(Pointer fp)
static Pointer	EVP_aes_128_ctr()
static Pointer	EVP_aes_256_ctr()
static Pointer	EVP_aes_256_ecb()
static void	EVP_CIPHER_CTX_free(Pointer ctx)
static Pointer	EVP_CIPHER_CTX_new()
static int	EVP_CIPHER_CTX_set_padding(Pointer context, int padding)
static int	EVP_EncryptFinal_ex(Pointer ctx, byte[] out, IntByReference outlen)
static int	EVP_EncryptInit_ex(Pointer context, Pointer ciphertype, Pointer impl, byte[] key, byte[] iv)
static int	EVP_EncryptUpdate(Pointer context, byte[] out, 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 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 IntByReference BUFFER_SIZE_P

Buffer size as C reference.

evpCipherContext

protected 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 Pointer EVP_CIPHER_CTX_new()

EVP_CIPHER_CTX_free

public static void EVP_CIPHER_CTX_free(Pointer ctx)

EVP_CIPHER_CTX_set_padding

public static int EVP_CIPHER_CTX_set_padding(Pointer context,
                                             int padding)

EVP_aes_256_ctr

public static Pointer EVP_aes_256_ctr()

EVP_aes_128_ctr

public static Pointer EVP_aes_128_ctr()

EVP_aes_256_ecb

public static Pointer EVP_aes_256_ecb()

EVP_EncryptInit_ex

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

EVP_EncryptUpdate

public static int EVP_EncryptUpdate(Pointer context,
                                    byte[] out,
                                    IntByReference outlen,
                                    byte[] in,
                                    int inlen)

EVP_EncryptFinal_ex

public static int EVP_EncryptFinal_ex(Pointer ctx,
                                      byte[] out,
                                      IntByReference outlen)

ERR_print_errors_fp

public static void ERR_print_errors_fp(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.