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/*
* Copyright (c) 2010 .SE (The Internet Infrastructure Foundation)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*****************************************************************************
softhsm2-keyconv-botan.cpp
Code specific for Botan
*****************************************************************************/
#include <config.h>
#define KEYCONV_BOTAN
#include "softhsm2-keyconv.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
#include <fstream>
#include <botan/init.h>
#include <botan/auto_rng.h>
#include <botan/pkcs8.h>
#include <botan/rsa.h>
#include <botan/dsa.h>
#include <botan/bigint.h>
#include <botan/version.h>
// Init Botan
void crypto_init()
{
Botan::LibraryInitializer::initialize();
}
// Final Botan
void crypto_final()
{
Botan::LibraryInitializer::deinitialize();
}
// Save the RSA key as a PKCS#8 file
int save_rsa_pkcs8(char* out_path, char* file_pin, key_material_t* pkey)
{
int result = 0;
Botan::Private_Key* priv_key = NULL;
Botan::AutoSeeded_RNG* rng = NULL;
Botan::BigInt bigE, bigP, bigQ, bigN, bigD;
// See if the key material was found.
if
(
pkey[TAG_MODULUS].size <= 0 ||
pkey[TAG_PUBEXP].size <= 0 ||
pkey[TAG_PRIVEXP].size <= 0 ||
pkey[TAG_PRIME1].size <= 0 ||
pkey[TAG_PRIME2].size <= 0
)
{
fprintf(stderr, "ERROR: Some parts of the key material is missing in the input file.\n");
return 1;
}
bigE = Botan::BigInt((Botan::byte*)pkey[TAG_PUBEXP].big, pkey[TAG_PUBEXP].size);
bigP = Botan::BigInt((Botan::byte*)pkey[TAG_PRIME1].big, pkey[TAG_PRIME1].size);
bigQ = Botan::BigInt((Botan::byte*)pkey[TAG_PRIME2].big, pkey[TAG_PRIME2].size);
bigN = Botan::BigInt((Botan::byte*)pkey[TAG_MODULUS].big, pkey[TAG_MODULUS].size);
bigD = Botan::BigInt((Botan::byte*)pkey[TAG_PRIVEXP].big, pkey[TAG_PRIVEXP].size);
rng = new Botan::AutoSeeded_RNG();
try
{
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,34)
priv_key = new Botan::RSA_PrivateKey(bigP, bigQ, bigE, bigD, bigN);
#else
priv_key = new Botan::RSA_PrivateKey(*rng, bigP, bigQ, bigE, bigD, bigN);
#endif
}
catch(std::exception& e)
{
fprintf(stderr, "%s\n", e.what());
fprintf(stderr, "ERROR: Could not extract the private key from the file.\n");
delete rng;
return 1;
}
std::ofstream priv_file(out_path);
if (!priv_file.is_open())
{
fprintf(stderr, "ERROR: Could not open file for output.\n");
delete rng;
delete priv_key;
return 1;
}
try
{
if (file_pin == NULL)
{
priv_file << Botan::PKCS8::PEM_encode(*priv_key);
}
else
{
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,0)
priv_file << Botan::PKCS8::PEM_encode(*priv_key, *rng, file_pin, std::chrono::milliseconds(300), "PBE-PKCS5v15(MD5,DES/CBC)");
#else
priv_file << Botan::PKCS8::PEM_encode(*priv_key, *rng, file_pin, "PBE-PKCS5v15(MD5,DES/CBC)");
#endif
}
printf("The key has been written to %s\n", out_path);
}
catch(std::exception& e)
{
fprintf(stderr, "%s\n", e.what());
fprintf(stderr, "ERROR: Could not write to file.\n");
result = 1;
}
delete rng;
delete priv_key;
priv_file.close();
return result;
}
// Save the DSA key as a PKCS#8 file
int save_dsa_pkcs8(char* out_path, char* file_pin, key_material_t* pkey)
{
int result = 0;
Botan::Private_Key* priv_key = NULL;
Botan::AutoSeeded_RNG* rng = NULL;
Botan::BigInt bigDP, bigDQ, bigDG, bigDX;
// See if the key material was found.
if
(
pkey[TAG_PRIME].size <= 0 ||
pkey[TAG_SUBPRIME].size <= 0 ||
pkey[TAG_BASE].size <= 0 ||
pkey[TAG_PRIVVAL].size <= 0
)
{
fprintf(stderr, "ERROR: Some parts of the key material is missing in the input file.\n");
return 1;
}
bigDP = Botan::BigInt((Botan::byte*)pkey[TAG_PRIME].big, pkey[TAG_PRIME].size);
bigDQ = Botan::BigInt((Botan::byte*)pkey[TAG_SUBPRIME].big, pkey[TAG_SUBPRIME].size);
bigDG = Botan::BigInt((Botan::byte*)pkey[TAG_BASE].big, pkey[TAG_BASE].size);
bigDX = Botan::BigInt((Botan::byte*)pkey[TAG_PRIVVAL].big, pkey[TAG_PRIVVAL].size);
rng = new Botan::AutoSeeded_RNG();
try
{
priv_key = new Botan::DSA_PrivateKey(*rng, Botan::DL_Group(bigDP, bigDQ, bigDG), bigDX);
}
catch (std::exception& e)
{
fprintf(stderr, "%s\n", e.what());
fprintf(stderr, "ERROR: Could not extract the private key from the file.\n");
delete rng;
return 1;
}
std::ofstream priv_file(out_path);
if (!priv_file.is_open())
{
fprintf(stderr, "ERROR: Could not open file for output.\n");
delete rng;
delete priv_key;
return 1;
}
try
{
if (file_pin == NULL)
{
priv_file << Botan::PKCS8::PEM_encode(*priv_key);
}
else
{
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,11,0)
priv_file << Botan::PKCS8::PEM_encode(*priv_key, *rng, file_pin, std::chrono::milliseconds(300), "PBE-PKCS5v15(MD5,DES/CBC)");
#else
priv_file << Botan::PKCS8::PEM_encode(*priv_key, *rng, file_pin, "PBE-PKCS5v15(MD5,DES/CBC)");
#endif
}
printf("The key has been written to %s\n", out_path);
}
catch (std::exception& e)
{
fprintf(stderr, "%s\n", e.what());
fprintf(stderr, "ERROR: Could not write to file.\n");
result = 1;
}
delete rng;
delete priv_key;
priv_file.close();
return result;
}
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