IKEV2_XFORMPRF_HMAC_SHA2_512
case IKEV2_XFORMPRF_HMAC_SHA2_512:
{ IKEV2_XFORMTYPE_PRF, IKEV2_XFORMPRF_HMAC_SHA2_512 },
{ "hmac-sha2-512", IKEV2_XFORMPRF_HMAC_SHA2_512, 64 },