IPSEC_AUTH_TRANSFORM_ID0 structure (ipsectypes.h)

The IPSEC_AUTH_TRANSFORM_ID0 structure is used to uniquely identify the hash algorithm used in an IPsec security association (SA).

Syntax

typedef struct IPSEC_AUTH_TRANSFORM_ID0_ {
  IPSEC_AUTH_TYPE   authType;
  IPSEC_AUTH_CONFIG authConfig;
} IPSEC_AUTH_TRANSFORM_ID0;

authType

The type of the hash algorithm as specified by IPSEC_AUTH_TYPE.

authConfig

Additional configuration information for the IPsec SA hash algorithm as specified by a IPSEC_AUTH_CONFIG which maps to a UINT8.

Possible values:

IPsec authentication configuration	Meaning
IPSEC_AUTH_CONFIG_HMAC_MD5_96	HMAC (Hash Message Authentication Code) secret key authentication algorithm. MD5 (Message Digest) data integrity and data origin authentication algorithm.
IPSEC_AUTH_CONFIG_HMAC_SHA_1_96	HMAC secret key authentication algorithm. SHA-1 (Secure Hash Algorithm) data integrity and data origin authentication algorithm.
IPSEC_AUTH_CONFIG_HMAC_SHA_256_128	HMAC secret key authentication algorithm. SHA-256 data integrity and data origin authentication algorithm. Note Available only on Windows Server 2008, Windows Vista with SP1, and later.
IPSEC_AUTH_CONFIG_GCM_AES_128	GCM (Galois Counter Mode) secret key authentication algorithm. AES(Advanced Encryption Standard) data integrity and data origin authentication algorithm, with 128-bit key. Note Available only on Windows Server 2008, Windows Vista with SP1, and later.
IPSEC_AUTH_CONFIG_GCM_AES_192	GCM secret key authentication algorithm. AES data integrity and data origin authentication algorithm, with 192-bit key. Note Available only on Windows Server 2008, Windows Vista with SP1, and later.
IPSEC_AUTH_CONFIG_GCM_AES_256	GCM secret key authentication algorithm. AES data integrity and data origin authentication algorithm, with 256-bit key. Note Available only on Windows Server 2008, Windows Vista with SP1, and later.

IPSEC_AUTH_TRANSFORM_ID0 is a specific implementation of IPSEC_AUTH_TRANSFORM_ID. See WFP Version-Independent Names and Targeting Specific Versions of Windows for more information.

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