mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
1.4 KiB
62 lines
1.4 KiB
// RsaKey.h -- RSA Key class header
|
|
|
|
// (c) Copyright Schlumberger Technology Corp., unpublished work, created
|
|
// 1999. This computer program includes Confidential, Proprietary
|
|
// Information and is a Trade Secret of Schlumberger Technology Corp. All
|
|
// use, disclosure, and/or reproduction is prohibited unless authorized
|
|
// in writing. All Rights Reserved.
|
|
|
|
#if !defined(SLBCSP_RSAKEY_H)
|
|
#define SLBCSP_RSAKEY_H
|
|
|
|
#include "KeyLimits.h"
|
|
|
|
struct RsaKey
|
|
{
|
|
public:
|
|
// limited by Microsoft CryptAPI, see CryptGenKey.
|
|
typedef unsigned __int16 BitLengthType; // key length (strength)
|
|
|
|
typedef BitLengthType StrengthType;
|
|
|
|
typedef unsigned __int16 OctetLengthType; // modulus length in octets
|
|
|
|
typedef unsigned __int16 ModulusLengthType;
|
|
|
|
enum Type
|
|
{
|
|
ktPrivate,
|
|
ktPublic
|
|
};
|
|
|
|
};
|
|
|
|
RsaKey::OctetLengthType
|
|
InOctets(RsaKey::BitLengthType bitlength);
|
|
|
|
RsaKey::BitLengthType
|
|
InBits(RsaKey::OctetLengthType octetlength);
|
|
|
|
bool
|
|
IsValidRsaKeyStrength(RsaKey::StrengthType strength);
|
|
|
|
template<>
|
|
class KeyLimits<RsaKey>
|
|
{
|
|
public:
|
|
|
|
// The following are defined as enums since VC++ 6.0 does
|
|
// not support initialization of constant declarations.
|
|
enum
|
|
{
|
|
|
|
cMinStrength = 512, // defined by card
|
|
|
|
cMaxStrength = 1024, // <-- DO NOT CHANGE -- US Export restricted
|
|
|
|
cStrengthIncrement = 256,
|
|
|
|
};
|
|
};
|
|
|
|
#endif // SLBCSP_RSAKEY_H
|