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/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */
package org.apache.commons.crypto.jna; import java.nio.ByteBuffer; import org.apache.commons.crypto.Crypto; import com.sun.jna.Native; import com.sun.jna.NativeLong; import com.sun.jna.ptr.PointerByReference; class OpenSsl10XNativeJna { static final boolean INIT_OK; static final Throwable INIT_ERROR; static { boolean ok = false; Throwable thrown = null; try { final String libName = System.getProperty(Crypto.CONF_PREFIX + OpenSsl10XNativeJna.class.getSimpleName(), "crypto"); OpenSslJna.debug("Native.register('%s')%n", libName); Native.register(libName); ok = true; } catch (final Exception e) { thrown = e; } catch (final UnsatisfiedLinkError e) { thrown = e; } finally { INIT_OK = ok; INIT_ERROR = thrown; } }
Returns:OPENSSL_VERSION_NUMBER which is a numeric release version identifier
/** * @return OPENSSL_VERSION_NUMBER which is a numeric release version identifier */
public static native NativeLong SSLeay();
Retrieves version/build information about OpenSSL library.
Params:
  • type – type can be SSLEAY_VERSION, SSLEAY_CFLAGS, SSLEAY_BUILT_ON...
Returns:A pointer to a constant string describing the version of the OpenSSL library or giving information about the library build.
/** * Retrieves version/build information about OpenSSL library. * * @param type * type can be SSLEAY_VERSION, SSLEAY_CFLAGS, SSLEAY_BUILT_ON... * @return A pointer to a constant string describing the version of the OpenSSL library or * giving information about the library build. */
public static native String SSLeay_version(int type);
Registers the error strings for all libcrypto functions.
/** * Registers the error strings for all libcrypto functions. */
public static native void ERR_load_crypto_strings();
Returns:the earliest error code from the thread's error queue without modifying it.
/** * @return the earliest error code from the thread's error queue without modifying it. */
public static native NativeLong ERR_peek_error();
Generates a human-readable string representing the error code e.
Params:
  • err – the error code
  • null_ – buf is NULL, the error string is placed in a static buffer
See Also:
Returns:the human-readable error messages.
/** * Generates a human-readable string representing the error code e. * * @see <a href="https://www.openssl.org/docs/man1.0.2/man3/ERR_error_string.html">ERR_error_string</a> * * @param err * the error code * @param null_ * buf is NULL, the error string is placed in a static buffer * @return the human-readable error messages. */
public static native String ERR_error_string(NativeLong err, char[] null_);
Creates a cipher context.
Returns:a pointer to a newly created EVP_CIPHER_CTX for success and NULL for failure.
/** * Creates a cipher context. * * @return a pointer to a newly created EVP_CIPHER_CTX for success and NULL for failure. */
public static native PointerByReference EVP_CIPHER_CTX_new();
EVP_CIPHER_CTX_init() remains as an alias for EVP_CIPHER_CTX_reset
Params:
  • p – cipher context
/** * EVP_CIPHER_CTX_init() remains as an alias for EVP_CIPHER_CTX_reset * * @param p * cipher context */
public static native void EVP_CIPHER_CTX_init(PointerByReference p);
Enables or disables padding
Params:
  • c – cipher context
  • pad – If the pad parameter is zero then no padding is performed
Returns:always returns 1
/** * Enables or disables padding * * @param c * cipher context * @param pad * If the pad parameter is zero then no padding is performed * @return always returns 1 */
public static native int EVP_CIPHER_CTX_set_padding(PointerByReference c, int pad);
Returns:an OpenSSL AES EVP cipher instance with a 128-bit key CBC mode
/** * @return an OpenSSL AES EVP cipher instance with a 128-bit key CBC mode */
public static native PointerByReference EVP_aes_128_cbc();
Returns:an OpenSSL AES EVP cipher instance with a 128-bit key CTR mode
/** * @return an OpenSSL AES EVP cipher instance with a 128-bit key CTR mode */
public static native PointerByReference EVP_aes_128_ctr();
Returns:an OpenSSL AES EVP cipher instance with a 192-bit key CBC mode
/** * @return an OpenSSL AES EVP cipher instance with a 192-bit key CBC mode */
public static native PointerByReference EVP_aes_192_cbc();
Returns:an OpenSSL AES EVP cipher instance with a 192-bit key CTR mode
/** * @return an OpenSSL AES EVP cipher instance with a 192-bit key CTR mode */
public static native PointerByReference EVP_aes_192_ctr();
Returns:an OpenSSL AES EVP cipher instance with a 256-bit key CBC mode
/** * @return an OpenSSL AES EVP cipher instance with a 256-bit key CBC mode */
public static native PointerByReference EVP_aes_256_cbc();
Returns:an OpenSSL AES EVP cipher instance with a 256-bit key CTR mode
/** * @return an OpenSSL AES EVP cipher instance with a 256-bit key CTR mode */
public static native PointerByReference EVP_aes_256_ctr();
Init a cipher.
Params:
  • ctx – cipher context
  • cipher – evp cipher instance
  • impl – engine
  • key – key
  • iv – iv
  • enc – 1 for encryption, 0 for decryption
Returns:1 for success and 0 for failure.
/** * Init a cipher. * * @param ctx * cipher context * @param cipher * evp cipher instance * @param impl * engine * @param key * key * @param iv * iv * @param enc * 1 for encryption, 0 for decryption * @return 1 for success and 0 for failure. */
public static native int EVP_CipherInit_ex(PointerByReference ctx, PointerByReference cipher, PointerByReference impl, byte key[], byte iv[], int enc);
Continues a multiple-part encryption/decryption operation.
Params:
  • ctx – cipher context
  • bout – output byte buffer
  • outl – output length
  • in – input byte buffer
  • inl – input length
Returns:1 for success and 0 for failure.
/** * Continues a multiple-part encryption/decryption operation. * * @param ctx * cipher context * @param bout * output byte buffer * @param outl * output length * @param in * input byte buffer * @param inl * input length * @return 1 for success and 0 for failure. */
public static native int EVP_CipherUpdate(PointerByReference ctx, ByteBuffer bout, int[] outl, ByteBuffer in, int inl);
Finishes a multiple-part operation.
Params:
  • ctx – cipher context
  • bout – output byte buffer
  • outl – output length
Returns:1 for success and 0 for failure.
/** * Finishes a multiple-part operation. * * @param ctx * cipher context * @param bout * output byte buffer * @param outl * output length * @return 1 for success and 0 for failure. */
public static native int EVP_CipherFinal_ex(PointerByReference ctx, ByteBuffer bout, int[] outl);
Clears all information from a cipher context and free up any allocated memory associate with it, including ctx itself.
Params:
  • c – openssl evp cipher
/** * Clears all information from a cipher context and free up any allocated memory associate with * it, including ctx itself. * * @param c * openssl evp cipher */
public static native void EVP_CIPHER_CTX_free(PointerByReference c);
Clears all information from a cipher context and free up any allocated * memory associate with it.
Params:
  • c – openssl evp cipher
/** * Clears all information from a cipher context and free up any allocated * memory associate * with it. * * @param c * openssl evp cipher */
public static native void EVP_CIPHER_CTX_cleanup(PointerByReference c); // Random generator
OpenSSL uses for random number generation
Returns:pointers to the respective methods
/** * OpenSSL uses for random number generation * * @return pointers to the respective methods */
public static native PointerByReference RAND_get_rand_method();
OpenSSL uses for random number generation.
Returns:pointers to the respective methods
/** * OpenSSL uses for random number generation. * * @return pointers to the respective methods */
public static native PointerByReference RAND_SSLeay();
Generates random data
Params:
  • buf – the bytes for generated random.
  • num – buffer length
Returns:1 on success, 0 otherwise.
/** * Generates random data * * @param buf * the bytes for generated random. * @param num * buffer length * @return 1 on success, 0 otherwise. */
public static native int RAND_bytes(ByteBuffer buf, int num);
Releases all functional references.
Params:
  • e – engine reference.
Returns:0 on success, 1 otherwise.
/** * Releases all functional references. * * @param e * engine reference. * @return 0 on success, 1 otherwise. */
public static native int ENGINE_finish(PointerByReference e);
Frees the structural reference
Params:
  • e – engine reference.
Returns:0 on success, 1 otherwise.
/** * Frees the structural reference * * @param e * engine reference. * @return 0 on success, 1 otherwise. */
public static native int ENGINE_free(PointerByReference e);
Cleanups before program exit, it will avoid memory leaks.
Returns:0 on success, 1 otherwise.
/** * Cleanups before program exit, it will avoid memory leaks. * * @return 0 on success, 1 otherwise. */
public static native int ENGINE_cleanup();
Obtains a functional reference from an existing structural reference.
Params:
  • e – engine reference
Returns:zero if the ENGINE was not already operational and couldn't be successfully initialized
/** * Obtains a functional reference from an existing structural reference. * * @param e * engine reference * @return zero if the ENGINE was not already operational and couldn't be successfully * initialized */
public static native int ENGINE_init(PointerByReference e);
Sets the engine as the default for random number generation.
Params:
  • e – engine reference
  • flags – ENGINE_METHOD_RAND
Returns:zero if failed.
/** * Sets the engine as the default for random number generation. * * @param e * engine reference * @param flags * ENGINE_METHOD_RAND * @return zero if failed. */
public static native int ENGINE_set_default(PointerByReference e, int flags);
Gets engine by id
Params:
  • id – engine id
Returns:engine instance
/** * Gets engine by id * * @param id * engine id * @return engine instance */
public static native PointerByReference ENGINE_by_id(String id);
Initializes the engine.
/** * Initializes the engine. */
public static native void ENGINE_load_rdrand(); }