CARD_DH_AGREEMENT_INFO Structure

The CARD_DH_AGREEMENT_INFO structure specifies information necessary for the CardConstructDHAgreement function to calculate a Diffie-Hellman key exchange secret agreement.

**Windows Server 2003, Windows XP, Windows 2000 Server, and Windows 2000 Professional:  **Diffie-Hellman key exchange secret calculation is not supported.

Syntax

typedef struct _CARD_DH_AGREEMENT_INFO {
  DWORD dwVersion;
  BYTE  bContainerIndex;
  DWORD dwFlags;
  DWORD dwPublicKey;
  PBYTE pbPublicKey;
  PBYTE pbReserved;
  DWORD cbReserved;
  BYTE  bSecretAgreementIndex;
} CARD_DH_AGREEMENT_INFO, *PCARD_DH_AGREEMENT_INFO;

Members

• dwVersion
  The version of this structure, to be set by the caller. The current version is 2.

• bContainerIndex
  The key container index number. The container holds the keys that perform the calculation.

• dwFlags
  Reserved. You must set this member to zero.

• dwPublicKey
  The size, in bytes, of the pbPublicKey buffer.

• pbPublicKey
  A pointer to a buffer that specifies the public key. The CardConstructDHAgreement function constructs the agreement from this key.

• pbReserved
  Reserved.

• cbReserved
  Reserved.

• bSecretAgreementIndex
  The index of the container that holds the secret agreement on successful completion of the CardConstructDHAgreement function.

Requirements

See Also

Microsoft Base Smart Card Cryptographic Service Provider

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Build date: 3/5/2009