SIGNER_PROVIDER_INFO structure
The SIGNER_PROVIDER_INFO structure specifies the cryptographic service provider (CSP) and private key information used to create a digital signature.
Note
This structure is not defined in any header file. To use this structure, you must define it yourself as shown in this topic.
Syntax
typedef struct _SIGNER_PROVIDER_INFO {
DWORD cbSize;
LPCWSTR pwszProviderName;
DWORD dwProviderType;
DWORD dwKeySpec;
DWORD dwPvkChoice;
union {
LPWSTR pwszPvkFileName;
LPWSTR pwszKeyContainer;
};
} SIGNER_PROVIDER_INFO, *PSIGNER_PROVIDER_INFO;
Members
-
cbSize
-
The size, in bytes, of the structure.
-
pwszProviderName
-
The name of the CSP used to create the digital signature. If the value of this member is NULL, the default provider is used.
-
dwProviderType
-
The type of the CSP specified by the pwszProviderName member.
-
dwKeySpec
-
The key specification. If this member is set to zero, the key specification in the pwszPvkFileName or pwszKeyContainer member is used. If there is more than one key specification in the pwszKeyContainer member, AT_SIGNATURE is used. If it fails, AT_KEYEXCHANGE is used.
-
dwPvkChoice
-
Specifies the type of private key information. This member can be one or more of the following values.
Value Meaning - PVK_TYPE_FILE_NAME
- 1 (0x1)
The private key information is a file name. - PVK_TYPE_KEYCONTAINER
- 2 (0x2)
The private key information is a key container. -
pwszPvkFileName
-
The name of the file that contains the private key information.
-
pwszKeyContainer
-
The name of the key container that contains the private key information.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows XP [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
See also