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CMSG_CMS_SIGNER_INFO structure (wincrypt.h)

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The CMSG_CMS_SIGNER_INFO structure contains the content of the defined SignerInfo in signed or signed and enveloped messages. In decoding a received message, CryptMsgGetParam is called for each signer to get a CMSG_CMS_SIGNER_INFO structure.

Syntax

typedef struct _CMSG_CMS_SIGNER_INFO {
  DWORD                      dwVersion;
  CERT_ID                    SignerId;
  CRYPT_ALGORITHM_IDENTIFIER HashAlgorithm;
  CRYPT_ALGORITHM_IDENTIFIER HashEncryptionAlgorithm;
  CRYPT_DATA_BLOB            EncryptedHash;
  CRYPT_ATTRIBUTES           AuthAttrs;
  CRYPT_ATTRIBUTES           UnauthAttrs;
} CMSG_CMS_SIGNER_INFO, *PCMSG_CMS_SIGNER_INFO;

Members

dwVersion

The version of this structure.

SignerId

A CERT_ID structure that identifies the signer's certificate.

HashAlgorithm

A CRYPT_ALGORITHM_IDENTIFIER structure that specifies the algorithm used in generating the hash of a message.

HashEncryptionAlgorithm

A CRYPT_ALGORITHM_IDENTIFIER structure that specifies the algorithm used to encrypt the hash.

EncryptedHash

A CRYPT_DATA_BLOB structure that contains the encrypted hash of the message, the signature.

AuthAttrs

A CRYPT_ATTRIBUTES structure that contains authenticated attributes of the signer.

UnauthAttrs

A CRYPT_ATTRIBUTES structure that contains unauthenticated attributes of the signer.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Header wincrypt.h

See also

CRYPT_ALGORITHM_IDENTIFIER

CRYPT_ATTRIBUTES

CRYPT_INTEGER_BLOB