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CNG Interface Identifiers

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The following identifiers are used to identify a CNG cryptographic interface. In CNG, an interface identifies the type of cryptographic behavior that a provider supports. For example, a provider may be a random number generator or it may be a hashing provider.

Constant/value Description
BCRYPT_CIPHER_INTERFACE
0x00000001
 The symmetric cipher interface.
BCRYPT_HASH_INTERFACE
0x00000002
 The hash interface.
BCRYPT_ASYMMETRIC_ENCRYPTION_INTERFACE
0x00000003
 The asymmetric encryption interface.
BCRYPT_SECRET_AGREEMENT_INTERFACE
0x00000004
 The secret agreement interface.
BCRYPT_SIGNATURE_INTERFACE
0x00000005
 The signature interface.
BCRYPT_RNG_INTERFACE
0x00000006
 The random number generator interface.
NCRYPT_KEY_STORAGE_INTERFACE
0x00010001
 The key storage interface.
NCRYPT_SCHANNEL_INTERFACE
0x00010002
 The Schannel signature interface.
NCRYPT_SCHANNEL_SIGNATURE_INTERFACE
0x00010003
 The Schannel cipher suite interface.
Windows Server 2008, Windows Vista, Windows Server 2003, Windows XP and Windows 2000: This value is not supported.

Requirements

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