diff --git a/scst/src/scst_lib.c b/scst/src/scst_lib.c
index 646ceb85b..4d5ff8d6e 100644
--- a/scst/src/scst_lib.c
+++ b/scst/src/scst_lib.c
@@ -1068,6 +1068,12 @@ static const struct scst_sdbops scst_scsi_op_table[] = {
 	 .info_data_direction = SCST_DATA_NONE,
 	 .info_op_flags = SCST_LONG_TIMEOUT,
 	 .get_cdb_info = get_cdb_info_none},
+	{.ops = 0xA2, .devkey = "OO   O          ",
+	 .info_op_name = "SECURITY PROTOCOL IN",
+	 .info_data_direction = SCST_DATA_READ,
+	 .info_op_flags = SCST_REG_RESERVE_ALLOWED|SCST_WRITE_EXCL_ALLOWED,
+	 .info_len_off = 6, .info_len_len = 4,
+	 .get_cdb_info = get_cdb_info_len_4},
 	{.ops = 0xA3, .devkey = "     O          ",
 	 .info_op_name = "SEND KEY",
 	 .info_data_direction = SCST_DATA_WRITE,
@@ -1186,6 +1192,12 @@ static const struct scst_sdbops scst_scsi_op_table[] = {
 	 .info_data_direction = SCST_DATA_NONE,
 	 .info_op_flags = FLAG_NONE,
 	 .get_cdb_info = get_cdb_info_none},
+	{.ops = 0xB5, .devkey = "OO   O          ",
+	 .info_op_name = "SECURITY PROTOCOL OUT",
+	 .info_data_direction = SCST_DATA_WRITE,
+	 .info_op_flags = FLAG_NONE,
+	 .info_len_off = 6, .info_len_len = 4,
+	 .get_cdb_info = get_cdb_info_len_4},
 	{.ops = 0xB5, .devkey = "        O       ",
 	 .info_op_name = "REQUEST VOLUME ELEMENT ADDRESS",
 	 .info_data_direction = SCST_DATA_READ,