CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

This structure contains information used to verify a message signature. It contains the signer index and signer public key. The signer public key can be the signer's CERT_PUBLIC_KEY_INFO structure, certificate context, or chain context.


typedef struct _CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA {
  DWORD cbSize;
  HCRYPTPROV hCryptProv;
  DWORD dwSignerIndex;
  DWORD dwSignerType;
  void* pvSigner;
} CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA, *PCMSG_CTRL_VERIFY_SIGNATURE_EX_PARA;

cbSize

Size of this structure in bytes.

hCryptProv

Handle to the cryptographic provider that is used to verify the signature. If NULL, the cryptographic provider specified in CryptMsgOpenToDecode is used. If the hCryptProv in CryptMsgOpenToDecode is also NULL, the default provider according to the signer's public key OID is used.

dwSignerIndex

Index of the signer in the message.

dwSignerType

Indication of the structure containing the signer information. The following table shows the predefined values and the structures indicated.

Value Description

CMSG_VERIFY_SIGNER_PUBKEY

CERT_PUBLIC_KEY_INFO

CMSG_VERIFY_SIGNER_CERT

CCERT_CONTEXT

CMSG_VERIFY_SIGNER_CHAIN

CERT_CHAIN_CONTEXT

CMSG_VERIFY_SIGNER_NULL

NULL

pvSigner

Pointer to a CERT_PUBLIC_KEY_INFO structure, a certificate context, a chain context, or NULL depending on the value of dwSignerType.

If dwSignerType is CMSG_VERIFY_SIGNER_NULL, the signature is expected to contain only the unencrypted hash octets.

Headerwincrypt.h
Windows Embedded CEWindows CE .NET 4.0 and later
Windows MobileWindows Mobile Version 5.0 and later

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