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New Attack Technique Recovers Encryption Keys in Seconds

The Infinite Brief
A research paper presented at the Usenix security conference last week detailed a new technique for retrieving encryption keys from electronic devices, a method that is much faster than all previously known techniques.

The approach relies on recording electromagnetic (EM) emanations coming off a device as it performs an encryption or decryption operation.

The attack relies on observing a short window of EM waves that have emanated from a device during a single decryption operation.

GSU researchers say their devised attack can recover between 95.7% and 99.6% of the RSA encryption key. They say the attack takes under one second to execute, and they were able to recover the full encryption key using a custom reconstruction algorithm.

Curated from Bleeping Computer

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