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/*
* Copyright (c) 2000 - 2013 Samsung Electronics Co., Ltd All Rights Reserved
*
* 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
*
*
* @file ckm-type.h
* @author Bartlomiej Grzelewski (b.grzelewski@samsung.com)
* @version 1.0
* @brief Sample service implementation.
*/
#pragma once
#include <stdint.h>
#include <cassert>
#include <string>
#include <vector>
#include <map>
#include <memory>
#include <ckm/ckm-raw-buffer.h>
#include <ckm/ckm-password.h>
#define KEY_MANAGER_API __attribute__((visibility("default")))
namespace CKM {
// used to pass password and raw key data
typedef std::vector<RawBuffer> RawBufferVector;
typedef std::string Alias;
typedef std::string Label;
typedef std::vector<Alias> AliasVector;
enum class KeyType : int {
KEY_NONE = 0,
KEY_RSA_PUBLIC,
KEY_RSA_PRIVATE,
KEY_ECDSA_PUBLIC,
KEY_ECDSA_PRIVATE,
KEY_DSA_PUBLIC,
KEY_DSA_PRIVATE,
KEY_AES
};
enum class DataFormat : int {
FORM_DER_BASE64 = 0,
FORM_DER,
FORM_PEM
};
enum class ElipticCurve : int {
prime192v1 = 0,
prime256v1,
secp384r1
};
enum class CertificateFieldId : int {
ISSUER = 0,
SUBJECT
};
struct Policy {
Policy(const Password &pass = Password(), bool extract = true)
: password(pass)
, extractable(extract)
{}
virtual ~Policy() {}
Password password; // byte array used to encrypt data inside CKM
bool extractable; // if true key may be extracted from storage
};
enum class HashAlgorithm : int {
NONE = 0,
SHA1,
SHA256,
SHA384,
SHA512
};
enum class RSAPaddingAlgorithm : int {
NONE = 0,
PKCS1,
X931
};
enum class DBCMAlgType : int {
NONE = 0,
AES_GCM_256,
COUNT
};
typedef int PermissionMask;
enum Permission: int {
NONE = 0x00,
READ = 0x01,
REMOVE = 0x02
// keep in sync with ckmc_permission_e !
};
// algorithm parameters
enum class ParamName : int {
ALGO_TYPE = 1, // If there's no such param, the service will try to deduce the algorithm
// type from the key.
// encryption & decryption
ED_IV = 101,
ED_CTR_LEN,
ED_AAD,
ED_TAG_LEN,
ED_LABEL,
// key generation
GEN_KEY_LEN = 201,
GEN_EC, // elliptic curve (ElipticCurve)
// sign & verify
SV_HASH_ALGO = 301, // hash algorithm (HashAlgorithm)
SV_RSA_PADDING, // RSA padding (RSAPaddingAlgorithm)
// special values marking valid values range
FIRST = ALGO_TYPE,
LAST = SV_RSA_PADDING
};
// algorithm types (ALGO_TYPE param)
enum class AlgoType : int {
AES_CTR = 1,
AES_CBC,
AES_GCM,
AES_CFB,
RSA_OAEP,
RSA_SV,
DSA_SV,
ECDSA_SV,
RSA_GEN,
DSA_GEN,
ECDSA_GEN,
AES_GEN,
};
// cryptographic algorithm description
class KEY_MANAGER_API CryptoAlgorithm {
public:
template <typename T>
bool getParam(ParamName name, T& value) const;
// returns false if param 'name' is invalid
template <typename T>
bool setParam(ParamName name, const T& value);
protected:
class BaseParam {
public:
virtual bool getBuffer(RawBuffer&) const { return false; }
virtual bool getInt(uint64_t&) const { return false; }
virtual ~BaseParam() {}
protected:
BaseParam() {}
};
typedef std::shared_ptr<BaseParam> BaseParamPtr;
class BufferParam : public BaseParam {
public:
bool getBuffer(RawBuffer& buffer) const;
static BaseParamPtr create(const RawBuffer& buffer);
private:
explicit BufferParam(const RawBuffer& value) : m_buffer(value) {}
RawBuffer m_buffer;
};
class IntParam : public BaseParam {
public:
static BaseParamPtr create(uint64_t value);
bool getInt(uint64_t& value) const;
private:
explicit IntParam(uint64_t value) : m_int(value) {}
uint64_t m_int;
};
std::map<ParamName, BaseParamPtr> m_params;
};
template <typename T>
bool CryptoAlgorithm::getParam(ParamName name, T& value) const
{
auto param = m_params.find(name);
if (param == m_params.end())
return false;
assert(param->second);
uint64_t valueTmp;
if (param->second->getInt(valueTmp)) {
value = static_cast<T>(valueTmp);
return true;
}
return false;
}
template <>
bool CryptoAlgorithm::getParam(ParamName name, RawBuffer& value) const;
template <typename T>
bool CryptoAlgorithm::setParam(ParamName name, const T& value)
{
if (name < ParamName::FIRST || name > ParamName::LAST)
return false;
m_params[name] = IntParam::create(static_cast<uint64_t>(value));
return true;
}
template <>
bool CryptoAlgorithm::setParam(ParamName name, const RawBuffer& value);
} // namespace CKM
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