Battery-free smart locks are insecure? 5 hardcore technologies that tell you the truth

When ‘battery-free design’ has become the new trend of smart locks, many users inevitably have doubts: abandon the traditional battery-powered, whether it will make the safety and protection greatly reduced? After all, the core value of the lock is always ‘guarding’. Today, we dismantle the battery-free smart lock from the bottom of the technology 5 major security details, with hardcore data to tell you: no battery ≠ low security, on the contrary, it may be more than the traditional locks ‘resistance’.

AES-256 financial-grade encryption chip: a ‘digital shield’ that is tighter than the banking system

The password or fingerprint data transmission of traditional smart locks is often cracked by hackers due to insufficient encryption level. The battery-free smart lock is equipped with an AES-256 encryption chip (the highest security level certified by the National Institute of Standards and Technology), whose encryption strength is equivalent to cracking passwords with 2²⁵⁶ combinations - if the world's fastest supercomputer tries it, the time required is far beyond the age of the universe.

Application Scenario: Whether it is NFC signal transmission, temporary password generation or remote authorisation, all data interactions are encrypted in real time, eliminating ‘man-in-the-middle attacks’ (e.g. copying keys through signal interception).

· Comparison Advantage: Far beyond the AES-128 encryption commonly used in traditional locks (some low-priced locks are not even encrypted), security is improved by 65536 times, reaching the financial-grade transaction standard.

Anti-copying NFC technology: make the ‘universal card’ completely ineffective

Ordinary NFC cards are easy to be copied? Battery-free smart lock adopts dynamic key + two-way authentication technology to fundamentally cut off security risks:

1. Dynamic key generation: each time you unlock, the lock body and mobile phone/card will generate a unique one-time key, just like the ‘electronic disposable key’, which will be invalid immediately after use, and can't be used twice even if it's intercepted.

2. Two-way authentication: Not only does the mobile phone verify the legality of the lock body, the lock body also verifies the mobile phone's certificate in reverse, preventing counterfeit devices from masquerading as legitimate terminals.

Measured data: Tested by international security agencies, the probability of cracking is less than 0.0001%, far exceeding the industry standard (the probability of cracking an ordinary NFC lock is about 1%).

Hidden emergency mechanical keyhole: the critical moment of ‘security guarantee’

Battery-free design is not to completely abandon the traditional way of unlocking the door, but will be the emergency solution to ‘hidden and reliable’:

· anti-pry design: mechanical keyhole Hidden underneath the lock panel, it needs to be triggered by pressing a specific area or using a special tool to avoid easy positioning by violent vandals.

· key material: C grade lock core (the highest anti-theft grade) is used, the blade structure can resist common means such as tinfoil unlocking and violent twisting, and the official test shows that the cracking time of professional unlocking tools is more than 270 minutes.

· use scenarios: to cope with extreme situations (such as long-term unused to lead to the exhaustion of reserve power), without disassembling the lock, 3 seconds to switch to mechanical unlocking mode.

6-axis sensor anti-violent disassembly: 24-hour online ‘security sentinel’

6-axis motion sensor integrated inside the lock body, real-time monitoring of abnormal vibration, prying, drilling and other violent behaviour:

· Multi-level alarm mechanism:

① Slight prying: triggering the beeping alarm (85 decibels, equivalent to a car whistle) ② Continuous damage: synchronously send warning notification to the mobile phone APP, and capture photos of the scene (need to cooperate with the camera function);

③ Forced disassembly: the lock body automatically locks the core components to prevent the exposure of the circuitry, and even if the removal of the lock body can not crack the internal data.

· Applicable Scenarios: Women living alone, shops and other security-sensitive scenarios, so that ‘violent unlocking’ from ‘feasible solution’ to "high-risk behaviour ".

Dummy password + anti-peep design: privacy guarding at the details

For the pain point of ‘password peeping’, the battery-free smart lock supports the dummy password technology: before and after the correct password can be added to any number (such as the correct password 1234, you can enter 98123456), the lock body only identifies the middle of the consecutive correct portion of the effective confuse the bystanders. The lock only recognises the consecutive correct parts in the middle, effectively confusing onlookers.

· additional protection: with anti-fingerprint residue coating (special surface treatment to reduce fingerprint traces) and tilt angle display (non-front view angle can not see the password), from ‘input - recognition - recording’ the whole chain to guard password security.

The ‘Win-Win Formula’ for Battery-Free and Safety: Technological Innovation, Not Compromise

Many people mistakenly think that being ‘battery-free’ is about simplifying safety design to save money, but it's the opposite: being free of batteries allows engineers to devote more space and budget to core protective The opposite is true: by getting rid of batteries, engineers have more space and budget to invest in core protection technologies. The above 5 details are the perfect balance between ‘battery-free’ and ‘high security’ - it not only solves the battery life pain point of traditional locks, but also brings security to a new level through technological upgrades. It not only solves the pain point of traditional locks in terms of battery life, but also upgrades the technology to bring security to a new level.

As a smart home review organisation said, ‘The security design of battery-free smart locks is not “good enough” but “over-defensive”.’ From financial-grade encryption to anti-violent disassembly, every detail answers a core question:

When the lock loses the battery as a ‘line of defence’, what do we use to guard the property and security behind it?

Suggestion: 3 strokes to identify real battery-free locks

1. Check the certification: confirm whether it has passed the international security certification (e.g. CE, FCC), and whether the encryption chip is AES-256 level;

2. Look at the emergency solution: whether the mechanical keyhole is hidden and uses a C-grade core, and whether the emergency interface has an anti-short-circuit design;

3. Examine the alarm mechanism: test on-site whether real-time alarms are triggered in the event of violent shocks, and whether the APP Check the alarm mechanism: on-site test whether the real-time alarm is triggered when violent vibration occurs and whether the APP can receive instant notification.

Conclusion: Security is never a ‘trade-off’, but a ‘must-answer’. Battery-free smart locks use technological innovation to prove that getting rid of batteries can make security protection light - because real protection never needs to rely on the promise of ‘regular replacement’, but is hidden in every detail that can withstand scrutiny.