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- /*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
- /**
- * File:
- * ipp_rsa_pub_key.cpp
- *Description:
- * Wrapper for rsa public key generation and free
- *
- */
- #include "ipp_wrapper.h"
- #include <stdlib.h>
- #include <string.h>
- #ifndef _TLIBC_CDECL_
- extern "C" int memset_s(void *s, size_t smax, int c, size_t n);
- #endif
- extern "C" IppStatus create_rsa_pub_key(int n_byte_size, int e_byte_size, const Ipp32u *n, const Ipp32u *e, IppsRSAPublicKeyState **new_pub_key)
- {
- IppsRSAPublicKeyState *p_pub_key = NULL;
- IppsBigNumState *p_n = NULL, *p_e = NULL;
- int rsa_size = 0;
- if(n_byte_size <= 0 || e_byte_size <= 0 || n == NULL || e == NULL || new_pub_key == NULL)
- {
- return ippStsBadArgErr;
- }
- IppStatus error_code = ippStsNoErr;
- do{
- error_code = newBN(n, n_byte_size, &p_n);
- ERROR_BREAK(error_code);
- error_code = newBN(e, e_byte_size, &p_e);
- ERROR_BREAK(error_code);
- error_code = ippsRSA_GetSizePublicKey(n_byte_size * 8, e_byte_size * 8, &rsa_size);
- ERROR_BREAK(error_code);
- p_pub_key = (IppsRSAPublicKeyState *)malloc(rsa_size);
- NULL_BREAK(p_pub_key);
- error_code = ippsRSA_InitPublicKey(n_byte_size * 8, e_byte_size * 8, p_pub_key, rsa_size);
- ERROR_BREAK(error_code);
- error_code = ippsRSA_SetPublicKey(p_n, p_e, p_pub_key);
- ERROR_BREAK(error_code);
- }while(0);
- secure_free_BN(p_n, n_byte_size);
- secure_free_BN(p_e, e_byte_size);
- if(error_code != ippStsNoErr || p_pub_key == NULL)
- {
- if(error_code == ippStsNoErr )
- error_code = ippStsMemAllocErr;
- secure_free_rsa_pub_key(n_byte_size, e_byte_size, p_pub_key);
- return error_code;
- }
- *new_pub_key = p_pub_key;
- return error_code;
- }
- extern "C" void secure_free_rsa_pub_key(int n_byte_size, int e_byte_size, IppsRSAPublicKeyState *pub_key)
- {
- if(n_byte_size <= 0 || e_byte_size <= 0 || pub_key == NULL)
- {
- if(pub_key)
- free(pub_key);
- return;
- }
- int rsa_size = 0;
- if(ippsRSA_GetSizePublicKey(n_byte_size * 8, e_byte_size * 8, &rsa_size) != ippStsNoErr)
- {
- free(pub_key);
- return;
- }
- /* Clear the buffer before free. */
- memset_s(pub_key, rsa_size, 0, rsa_size);
- free(pub_key);
- return;
- }
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