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Does Google use network encryption on it's Android apps like Gmail, Drive, Google Play, Docs, and others when doing authentication/data transfer? What type of encryption is it? Is it secure?

I have tried searching Google's help site about this and did not find a good answer. Can you provide me with some resources about the topic?

  • Can you give some context? Encryption of what exactly? Communication between the apps and the servers? Encryption on the device itself? – RoraΖ Nov 7 '14 at 16:02
  • yes connection between the apps and the servers , and what exactly included (authentication , file transit , metadata ) – keeperman Nov 7 '14 at 23:58
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packet capture of android phone communicating with Google's server

Above is a packet capture of communication between my phone and Google's server(74.125.68.19). Apparently, TLS is used to protect data in transit. TLS is also used for your browser's connection to a HTTPS website so the security is comparable.

If transmitted over cellular networks, there is a second layer of encryption between your phone and your provider. The algorithm used could be A5/KASUMI depending on the network.

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Google encrypts everywhere:

Security is a top priority for Google. We invest a lot in making sure that our services use industry-leading security, like strong HTTPS encryption by default. That means that people using Search, Gmail and Drive, for example, automatically have a secure connection to Google.

Its apps use HTTPS to communicate with its APIs.

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