OAKLEY_ATTR_HASH_ALG_SHA2_256
{ "sha2_256", algtype_sha2_256, OAKLEY_ATTR_HASH_ALG_SHA2_256,
{ "hmac_sha2_256", algtype_sha2_256, OAKLEY_ATTR_HASH_ALG_SHA2_256,
{ OAKLEY_ATTR_HASH_ALG_SHA2_256,"SHA256", NULL },