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// (c) Copyright Schlumberger Technology Corp., unpublished work, created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