Covert Channel
A side-channel technique that secretly transfers information by exploiting shared system resources not originally intended for communication, such as CPU caches, memory buses, or power fluctuations. It is a classical attack method in the field of information security.
Timeline (last 90 days)
The concept of covert channels was first proposed by Lampson in 1973, referring to side-channel methods that use resources in a system not originally intended for communication to transmit information.
In a multi-tenant cloud environment, two theoretically fully isolated processes can secretly communicate at a rate of thousands of bits per second by leveraging shared hardware resources.
All Facts (2)
The concept of covert channels was first proposed by Lampson in 1973, referring to side-channel methods that use resources in a system not originally intended for communication to transmit information.
50%UnverifiedIn a multi-tenant cloud environment, two theoretically fully isolated processes can secretly communicate at a rate of thousands of bits per second by leveraging shared hardware resources.
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