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Showing results for tags 'технологии'.
Practical TEMPEST Attack Four researchers have demonstrated a TEMPEST attack against a laptop, recovering its keys by listening to its electrical emanations. The cost for the attack hardware was about $3,000. News article: To test the hack, the researchers first sent the target a specific ciphertext -- in other words, an encrypted message. "During the decryption of the chosen ciphertext, we measure the EM leakage of the target laptop, focusing on a narrow frequency band," the paper reads. The signal is then processed, and "a clean trace is produced which reveals information about the oper