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arangodb/lib/Rest/SslInterface.cpp

339 lines
10 KiB
C++

////////////////////////////////////////////////////////////////////////////////
/// @brief OpenSSL class to interface libssl
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2014 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Dr. Oreste Costa-Panaia
/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
#include "SslInterface.h"
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/rand.h>
#include "Basics/RandomGenerator.h"
#include "Basics/StringUtils.h"
using namespace std;
using namespace triagens::basics;
// -----------------------------------------------------------------------------
// helper
// -----------------------------------------------------------------------------
namespace {
static Random::UniformCharacter SaltGenerator("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*(){}[]:;<>,.?/|");
}
namespace triagens {
namespace rest {
namespace SslInterface {
// -----------------------------------------------------------------------------
// public methods
// -----------------------------------------------------------------------------
void sslMD5 (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
if (outputStr == 0) {
outputStr = new char[MD5_DIGEST_LENGTH];
outputLen = MD5_DIGEST_LENGTH;
}
MD5((const unsigned char*) inputStr, length, (unsigned char*) outputStr);
}
void sslMD5 (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslMD5(inputStr, strlen(inputStr), outputStr, outputLen);
}
void sslMD5 (char const* input1, size_t length1, char const* input2, size_t length2, char*& outputStr, size_t& outputLen) {
if (outputStr == 0) {
outputStr = new char[MD5_DIGEST_LENGTH];
outputLen = MD5_DIGEST_LENGTH;
}
MD5_CTX ctx;
MD5_Init(&ctx);
MD5_Update(&ctx, input1, length1);
MD5_Update(&ctx, input2, length2);
MD5_Final((unsigned char*) outputStr, &ctx);
}
void sslSHA1 (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
if (outputStr == 0) {
outputStr = new char[SHA_DIGEST_LENGTH];
outputLen = SHA_DIGEST_LENGTH;
}
SHA1((const unsigned char*) inputStr, length, (unsigned char*) outputStr);
}
void sslSHA1 (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslSHA1(inputStr, strlen(inputStr), outputStr, outputLen);
}
void sslSHA224 (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
if (outputStr == 0) {
outputStr = new char[SHA224_DIGEST_LENGTH];
outputLen = SHA224_DIGEST_LENGTH;
}
SHA224((const unsigned char*) inputStr, length, (unsigned char*) outputStr);
}
void sslSHA224 (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslSHA224(inputStr, strlen(inputStr), outputStr, outputLen);
}
void sslSHA256 (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
if (outputStr == 0) {
outputStr = new char[SHA256_DIGEST_LENGTH];
outputLen = SHA256_DIGEST_LENGTH;
}
SHA256((const unsigned char*) inputStr, length, (unsigned char*) outputStr);
}
void sslSHA256 (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslSHA256(inputStr, strlen(inputStr), outputStr, outputLen);
}
void sslSHA384 (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
if (outputStr == 0) {
outputStr = new char[SHA384_DIGEST_LENGTH];
outputLen = SHA384_DIGEST_LENGTH;
}
SHA384((const unsigned char*) inputStr, length, (unsigned char*) outputStr);
}
void sslSHA384 (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslSHA384(inputStr, strlen(inputStr), outputStr, outputLen);
}
void sslSHA512 (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
if (outputStr == 0) {
outputStr = new char[SHA512_DIGEST_LENGTH];
outputLen = SHA512_DIGEST_LENGTH;
}
SHA512((const unsigned char*) inputStr, length, (unsigned char*) outputStr);
}
void sslSHA512 (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslSHA512(inputStr, strlen(inputStr), outputStr, outputLen);
}
void sslHEX (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
static char const hexval[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
if (outputStr == 0) {
outputStr = new char[length * 2 + 1];
outputLen = length * 2;
}
char const * e = inputStr + length;
char * p = outputStr;
for (char const * q = inputStr; q < e; ++q) {
*p++ = hexval[(*q >> 4) & 0xF];
*p++ = hexval[*q & 0x0F];
}
*p = '\0';
}
void sslHEX (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslHEX(inputStr, strlen(inputStr), outputStr, outputLen);
}
void sslBASE64 (char const* inputStr, size_t length, char*& outputStr, size_t& outputLen) {
string b = StringUtils::encodeBase64(string(inputStr, length));
if (outputStr == 0) {
outputStr = new char[b.size() + 1];
outputLen = length * 2;
}
memcpy(outputStr, b.c_str(), outputLen);
}
void sslBASE64 (char const* inputStr, char*& outputStr, size_t& outputLen) {
sslBASE64(inputStr, strlen(inputStr), outputStr, outputLen);
}
string sslPBKDF2 (char const* salt, size_t saltLength, char const* pass, size_t passLength, int iter, int keyLength) {
unsigned char* dk = (unsigned char*) TRI_SystemAllocate(EVP_MAX_MD_SIZE + 1, false);
PKCS5_PBKDF2_HMAC_SHA1(pass, (int) passLength, (const unsigned char*) salt, (int) saltLength, iter, keyLength, dk);
// return value as hex
string result = StringUtils::encodeHex(string((char*)dk, keyLength));
TRI_SystemFree(dk);
return result;
}
string sslHMAC (char const* key, size_t keyLength, char const* message, size_t messageLen, Algorithm algorithm) {
EVP_MD* evp_md = nullptr;
if (algorithm == Algorithm::ALGORITHM_SHA1) {
evp_md = const_cast<EVP_MD*>(EVP_sha1());
}
else if (algorithm == Algorithm::ALGORITHM_SHA224) {
evp_md = const_cast<EVP_MD*>(EVP_sha224());
}
else if (algorithm == Algorithm::ALGORITHM_MD5) {
evp_md = const_cast<EVP_MD*>(EVP_md5());
}
else if (algorithm == Algorithm::ALGORITHM_SHA384) {
evp_md = const_cast<EVP_MD*>(EVP_sha384());
}
else if (algorithm == Algorithm::ALGORITHM_SHA512) {
evp_md = const_cast<EVP_MD*>(EVP_sha512());
}
else {
// default
evp_md = const_cast<EVP_MD*>(EVP_sha256());
}
unsigned char* md = (unsigned char*) TRI_SystemAllocate(EVP_MAX_MD_SIZE + 1, false);
unsigned int md_len;
HMAC(evp_md, key, (int) keyLength, (const unsigned char*) message, messageLen, md, &md_len);
// return value as hex
string result = StringUtils::encodeHex(string((char*)md, md_len));
TRI_SystemFree(md);
return result;
}
bool verifyHMAC (char const* challenge, size_t challengeLength, char const* secret, size_t secretLen, char const* response, size_t responseLen, Algorithm algorithm) {
// challenge = key
// secret, secretLen = message
// result must == BASE64(response, responseLen)
string s = sslHMAC(challenge, challengeLength, secret, secretLen, algorithm);
if (s.length() == responseLen && s.compare( string(response, responseLen) ) == 0) {
return true;
}
return false;
}
int sslRand (uint64_t* value) {
if (! RAND_pseudo_bytes((unsigned char *) value, sizeof(uint64_t))) {
return 1;
}
return 0;
}
int sslRand (int64_t* value) {
if (! RAND_pseudo_bytes((unsigned char *) value, sizeof(int64_t))) {
return 1;
}
return 0;
}
int sslRand (int32_t* value) {
if (! RAND_pseudo_bytes((unsigned char *) value, sizeof(int32_t))) {
return 1;
}
return 0;
}
void salt64 (uint64_t& result) {
string salt = SaltGenerator.random(8);
char* saltChar = const_cast<char*>(salt.c_str());
uint64_t* saltInt = reinterpret_cast<uint64_t*>(saltChar);
result = *saltInt;
}
void saltChar (char*& result, size_t length) {
if (length == 0) {
result = 0;
return;
}
string salt = SaltGenerator.random(length);
result = StringUtils::duplicate(salt);
}
}
}
}
// -----------------------------------------------------------------------------
// --SECTION-- END-OF-FILE
// -----------------------------------------------------------------------------
// Local Variables:
// mode: outline-minor
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @page\\|// --SECTION--\\|/// @\\}"
// End: