Create iot-hub-tls-deprecating-1-0-and-1-1.md

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articles/iot-hub/iot-hub-tls-deprecating-1-0-and-1-1.md

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+---
+title: Deprecating TLS 1.0 and 1.1 in IoT Hub | Microsoft Docs
+description: Guidelines regarding deprecation of TLS 1.0 and 1.1 and supported ciphers in IoT Hub.
+author: kgremban
+ms.author: kgremban
+ms.service: iot-hub
+services: iot-hub
+ms.topic: conceptual
+ms.date: 04/14/2020
+---
+
+# Deprecation of TLS 1.0 and 1.1 in IoT Hub
+
+To provide best-in-class encryption, IoT Hub is moving to Transport Layer Security (TLS) 1.2 as the encryption mechanism of choice for IoT devices and services. 
+
+## Timeline
+
+IoT Hub will continue to support TLS 1.0/1.1 until further notice. However, we recommend that all customers migrate to TLS 1.2 as soon as possible.
+
+## Deprecating TLS 1.1 ciphers
+
+* `TLS_ECDHE_RSA_WITH_AES_256_CBC_SH`
+* `TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA`
+* `TLS_RSA_WITH_AES_256_CBC_SHA`
+* `TLS_RSA_WITH_AES_128_CBC_SHA`
+* `TLS_RSA_WITH_3DES_EDE_CBC_SHA`
+
+## Deprecating TLS 1.0 ciphers
+
+* `TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA`
+* `TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA`
+* `TLS_RSA_WITH_AES_256_CBC_SHA`
+* `TLS_RSA_WITH_AES_128_CBC_SHA`
+* `TLS_RSA_WITH_3DES_EDE_CBC_SHA`
+
+## TLS 1.2 cipher suites
+
+See [IoT Hub TLS 1.2 cipher suites](iot-hub-tls-support.md#cipher-suites).
+