diff --git a/docs/tutorial/TLE.md b/docs/tutorial/TLE.md
new file mode 100644
index 0000000..c7f2223
--- /dev/null
+++ b/docs/tutorial/TLE.md
@@ -0,0 +1,37 @@
+
+
+
+---
+
+# Time-Lock Encryption
+
+
+
+
+
+|Time|`Time cost`
for
`t_avg=0.5`|`Time cost`
for
`t_avg=1`|`Time cost`
for
`t_avg=1.5`|`Time cost`
for
`t_avg=2`|`Time cost`
for
`t_avg=3`|`Time cost`
for
`t_avg=4`|
+|-|-|-|-|-|-|-|
+|10s|5|10|15|20|30|40|
+|1m (60s)|30|60|90|120|180|240|
+10m (600s)|300|600|900|1200|1800|2400|
+|1h (3600s)|1800|3600|5400|7200|10800|14400|
+|6h (21600s)|10800|21600|32400|43200|64800|86400|
+|1d (24h, 86400s)|43200|86400|129600|172800|259200|345600|
+|7d (168h, 604800s)|302400|604800|907200|1209600|1814400|2419200|
+|30d (720h, 2592000s)|1296000|2592000|3888000|5184000|7776000|10368000|
+
+
+
+
+
+
+
+