#AUTOMATIC BLUETOOTH SCREEN LOCK ANDROID#
#AUTOMATIC BLUETOOTH SCREEN LOCK PASSWORD#

This could either be a physical token, such as with Smart Lock’s Trusted Devices where a phone can be unlocked when paired with a safelisted bluetooth device. The Tertiary Tier - Environmental: The last tier includes modalities that rely on something the user has.

#AUTOMATIC BLUETOOTH SCREEN LOCK ANDROID#

We will delve into Android biometrics in the next section. Biometrics offer a more convenient but potentially less secure way of confirming your identity with a device. Face or fingerprint based authentications are examples of secondary authentication modalities. Secondary Tier - Biometrics: The second tier consists primarily of biometrics, or something the user is.Knowledge factors also confer additional benefits to all users that use them, such as File Based Encryption (FBE) and encrypted device backup.

#AUTOMATIC BLUETOOTH SCREEN LOCK PASSWORD#

Knowledge factors are especially useful on Android becauses devices offer hardware backed brute-force protection with exponential-backoff, meaning Android devices prevent attackers from repeatedly guessing a PIN, pattern, or password by having hardware backed timeouts after every 5 incorrect attempts. Good high-entropy knowledge factors, such as complex passwords that are hard to guess, offer the highest potential guarantee of identity.

Primary Tier - Knowledge Factor: The first tier consists of modalities that rely on knowledge factors, or something the user knows, for example, a PIN, pattern, or password.

The secondary and tertiary tiers are more constrained because they cannot be set up and used without having a primary modality enrolled first and they have more constraints further restricting their capabilities. The primary tier is the least constrained in the sense that users only need to re-enter a primary modality under certain situations (for example, after each boot or every 72 hours) in order to use its capability. The model itself is fairly simple, classifying authentication modalities into three buckets of decreasing levels of security and commensurately increasing constraints. A good way to envision these changes is to fit them into the framework of the tiered authentication model, a conceptual classification of all the different authentication modalities on Android, how they relate to each other, and how they are constrained based on this classification.

In particular, we focus on two categories of authentication that present both immense potential as well as potentially immense risk if not designed well: biometrics and environmental modalities.īefore getting into the details of lockscreen and authentication improvements, we first want to establish some context to help relate these improvements to each other. This blog post outlines recent improvements around how users interact with the lockscreen on Android devices and more generally with authentication. After all, the lockscreen ensures that only the intended user(s) of a device can access their private data. A fundamental aspect of this work centers around the lockscreen, which acts as the proverbial front door to our devices. The team focuses on ensuring that Android devices respect the privacy and sensitivity of user data. This trust is paramount to the Android Security team. It is only natural that as part of this evolution, we’ve come to entrust our phones with our most private information, and in many ways treat them as extensions of our digital and physical identities. As phones become faster and smarter, they play increasingly important roles in our lives, functioning as our extended memory, our connection to the world at large, and often the primary interface for communication with friends, family, and wider communities.

Automatic bluetooth screen lock