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Encrypted telemetry data #96

Open abdjiber opened 4 years ago

abdjiber commented 4 years ago

Hi,

I am storing my real device data connected to iot central with a blob storage. I would like to apply AI on the data in Azure ML studio however the telemetry data are encryted. How could I decrypt them ? Or avoid the encryption ? Here is an example of what I got in the Body on my JSON's files:

"Body":"eyAJCQkJImFpcl9odW1pZGl0eSI6IDEyLCAJCQkJImFpcl90ZW1wZXJhdHVyZSI6IDMsIAkJCQkicHJlc3N1cmUiOiA1LCAJCQkJInNvaWxfaHVtaWRpdHkiOiAzLCAJCQkJIndpbmRfZGlyZWN0aW9uIjogMjEsIAkJCQkid2luZF9zcGVlZCI6IDQxLCAJCQkJImlycmlnYXRpb24iOiAwLCAJCQkJIndpbmRfZ3Vlc3QiOiAxNTksIAkJCQl9"

I noticed that the data from a simulated device are not encrypted. Could anyone help me please it's very urgent ? I search for a long time on the web and couldn't find a solution. I saw in this documentation in Security section that data from real devices are encrypted but how to decrypt them ?

kartben commented 4 years ago

You need to set the content type of the messages you sent to IoT Central to "application/json" and the encoding to "utf-8"

Le ven. 8 nov. 2019 à 18:45, DJIBEROU MAHAMADOU notifications@github.com a écrit :

Hi,

I am storing my real device data connected to iot central with a blob storage. I would like to apply AI on the data in Azure ML studio however the telemetry data are encryted. How could I decrypt them ? Or avoid the encryption ? Here is an example of what I got in the Body on my JSON's files:

"Body":"eyAJCQkJImFpcl9odW1pZGl0eSI6IDEyLCAJCQkJImFpcl90ZW1wZXJhdHVyZSI6IDMsIAkJCQkicHJlc3N1cmUiOiA1LCAJCQkJInNvaWxfaHVtaWRpdHkiOiAzLCAJCQkJIndpbmRfZGlyZWN0aW9uIjogMjEsIAkJCQkid2luZF9zcGVlZCI6IDQxLCAJCQkJImlycmlnYXRpb24iOiAwLCAJCQkJIndpbmRfZ3Vlc3QiOiAxNTksIAkJCQl9"

I noticed that the data from a simulated device are not encrypted. Could anyone help me please it's very urgent ? I search for a long time on the web and couldn't find a solution. I saw in this https://docs.microsoft.com/en-us/azure/iot-central/core/concepts-connectivity documentation in Security section that data from real devices are encrypted but how to decrypt them ?

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abdjiber commented 4 years ago

Thanks for your response. I am using the iotc python package. If I set the systemProperties = {"content-type":"application/json", "content-encoding":"utf-8"} after one message is sent the connection status become 1 and the telemetry sending stop.

aimjarozas commented 4 years ago

Hi, u have the same problem, this have some solutions?: iotc.sendTelemetry("{\"temp\": " 20"},{"contentType":"application/json","contentEncoding":"utf-8"}): after one message is sent the connection status become 1 and the telemetry sending stop.

If I put the follow: iotc.sendTelemetry("{\"temp\": " 20"},{"contentEncoding":"utf-8"})

The system put the contentEncoding in Properties, but this must to appear in "systemProperties: {"EnqueuedTimeUtc":"2020-02-05T11:25:14.6600000Z","Properties":{"contentEncoding":"UTF-8"},"SystemProperties":{"connectionDeviceId":"c08bccb2-f98b-4970-8c23-64f4cad04778","connectionAuthMethod":"{\"scope\":\"device\",\"type\":\"sas\",\"issuer\":\"iothub\",\"acceptingIpFilterRule

Do you have some solutions?

MikeSpark commented 4 years ago

I don't think this thread should be closed. No matter #47684 or this one has no solution on python's iotc package, only how to encode in javascript is provided. please help on this syntax clarifcation.