BCRYPT_KEY_DATA_BLOB_HEADER structure (bcrypt.h)

The BCRYPT_KEY_DATA_BLOB_HEADER structure is used to contain information about a key data BLOB. The key data BLOB must immediately follow this structure in memory.

Syntax

typedef struct _BCRYPT_KEY_DATA_BLOB_HEADER {
  ULONG dwMagic;
  ULONG dwVersion;
  ULONG cbKeyData;
} BCRYPT_KEY_DATA_BLOB_HEADER, *PBCRYPT_KEY_DATA_BLOB_HEADER;

Members

dwMagic

The magic value for the key.

This member must be the following value.

BCRYPT_KEY_DATA_BLOB_MAGIC (0x4d42444b)

dwVersion

Contains the numeric version of the key.

Value	Meaning
BCRYPT_KEY_DATA_BLOB_VERSION1 1	Version 1.

cbKeyData

The size, in bytes, of the key data.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	bcrypt.h

See also

BCryptExportKey

BCryptImportKey