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Microsoft BitLocker encryption cracked in just 43 seconds with a $4 Raspberry Pi Pico

 Microsoft BitLocker encryption cracked in just 43 seconds with a $4 Raspberry Pi Pico

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What magnificent took location? Bitlocker encryption in Windows OS improves data security by conserving intention files and personal data the usage of the AES encryption algorithm. Or no longer it is a truly great measure for folk that need extra security, enabling PC customers to soundly encrypt and offer protection to data from doable attackers. Nonetheless, new examine reveals that it might possibly perhaps well even be with out complications cracked the usage of cheap, off-the-shelf hardware.

In a YouTube video, security researcher Stacksmashing demonstrated that hackers can extract the BitLocker encryption key from Windows PCs in magnificent 43 seconds the usage of a $4 Raspberry Pi Pico. In line with the researcher, focused assaults can bypass BitLocker’s encryption by straight having access to the hardware and extracting the encryption keys kept within the computer’s Trusted Platform Module (TPM) by potential of the LPC bus.

The attack used to be doable attributable to a originate flaw show hide in units with dedicated TPMs, admire as much as the moment laptops and desktops. As defined by the researcher, BitLocker every so continuously uses external TPMs to retailer key data, such because the Platform Configuration Registers and Quantity Grasp Key. Nonetheless, as it turns out, the verbal substitute lanes (LPC bus) between the CPU and external TPM live unencrypted on boot-up, allowing risk actors to sniff any online page online visitors between the 2 modules and extract the encryption keys.

To procedure his proof-of-idea attack, Stacksmashing ancient a ten-year-outmoded computer with BitLocker encryption after which programmed the Raspberry Pi Pico to learn the raw binary codes from the TPM to compose access to the Quantity Grasp Key. Thereafter, he ancient Dislocker with the currently-obtained Quantity Grasp Key to decrypt the force.

It is some distance value noting right here that right here is never any longer the fundamental time we’re hearing about any individual bypassing BitLocker encryption. Final year, cybersecurity researcher Guillaume Quéré demonstrated how the BitLocker paunchy quantity encryption intention can enable customers to eavesdrop on any online page online visitors between the discrete TPM chip and CPU by potential of an SPI bus. Nonetheless, Microsoft claimed that defeating BitLocker encryption is a lengthy and cumbersome route of that requires lengthy access to the hardware.

The most up-to-date constructing has now shown that BitLocker will even be bypassed noteworthy extra with out complications than beforehand belief, and raises pertinent questions about existing encryption methodologies. It stays to be considered whether or no longer Microsoft will root out this specific vulnerability from BitLocker, nonetheless within the lengthy urge, cybersecurity researchers must fabricate an even bigger job of identifying and fixing doable security loopholes earlier than they turn out to be a mission for customers.

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