CRYPT_OID_INFO
A version of this page is also available for
4/8/2010
This structure contains information about an object identifier (OID). These structures give the relationship among an OID identifier, its name, its group, and other information on the OID. These structures can be listed using the CryptEnumOIDInfo function.
Syntax
typedef struct _CRYPT_OID_INFO {
DWORD cbSize;
LPCSTR pszOID;
LPCWSTR pwszName;
DWORD dwGroupId;
union {
DWORD dwValue;
ALG_ID Algid;
DWORD dwLength;
};
CRYPT_DATA_BLOB ExtraInfo;
} CRYPT_OID_INFO, *PCRYPT_OID_INFO;
typedef const CRYPT_OID_INFO CCRYPT_OID_INFO, *PCCRYPT_OID_INFO;
Members
- cbSize
Size of this structure in bytes.
- pszOID
Object identifier associated with this OID information.
- pwszName
Friendly name associated with an OID.
dwGroupId
Group identifier value associated with this OID information.The following table shows the group identifiers that are currently defined for dwGroupId.
Group identifier Description CRYPT_HASH_ALG_OID_GROUP_ID
Hash algorithms
CRYPT_ENCRYPT_ALG_OID_GROUP_ID
Encryption algorithms
CRYPT_PUBKEY_ALG_OID_GROUP_ID
Public key algorithms
CRYPT_SIGN_ALG_OID_GROUP_ID
Signature algorithms
CRYPT_RDN_ATTR_OID_GROUP_ID RDN
Attributes
CRYPT_EXT_OR_ATTR_OID_GROUP_ID
Extensions or attributes
CRYPT_ENHKEY_USAGE_OID_GROUP_ID
Enhanced key usages
CRYPT_POLICY_OID_GROUP_ID
Policies
- dwValue
Numeric value associated with this OID information. Used with dwGroupId CRYPT_SIGN_ALG_OID_GROUP_ID
Algid
Algorithm identifier associated with this OID information.Applies for the following values of dwGroupId:
- CRYPT_HASH_ALG_OID_GROUP_ID
- CRYPT_ENCRYPT_ALG_OID_GROUP_ID
- CRYPT_PUBKEY_ALG_OID_GROUP_ID
- CRYPT_SIGN_ALG_OID_GROUP_ID
- dwLength
Not implemented and always set to zero.
ExtraInfo
Extra information used to find or register OID information. Applies for the following values of dwGroupId:- CRYPT_PUBKEY_ALG_OID_GROUP_ID
- CRYPT_SIGN_ALG_OID_GROUP_ID
- CRYPT_RDN_ATTR_OID_GROUP_ID
Requirements
| Header | wincrypt.h |
| Windows Embedded CE | Windows CE 3.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |