SIDE CHANNEL ATTACK

[Virtual Presenter] Side Channel Attack Exploiting Implementation Secrets.

[Virtual Presenter] Contents What are Side-Channel Attacks? Types of Side-Channel Attacks How Side-Channel Attacks works Mitigation Techniques Real-World Examples Conclusion.

[Virtual Presenter] What are Side-Channel Attack ? A side-channel attack is a type of cyber attack that targets the implementation of a system rather than the system itself. It exploits information gained from the physical implementation of a system such as: Timing information (eg: how long a computation takes) Power consumption Electromagnetic radiation Sound Heat.

[Audio] How Side-Channel Attacks Works: Observation: The attacker observes the system's behavior such as timing power consumption or electromagnetic radiation. Analysis: The attacker analyzes the observed data to identify patterns or correlations that can reveal sensitive information. Exploitation: The attacker uses the identified patterns or correlations to infer sensitive information such as the secret key..

[Audio] Types of Side-Channel Attacks: Timing Attacks: Exploit variations in computation time.(eg: An attacker might measures how long it takes a server to respond to different inputs to deduce information about a password or cryptographic key.) Power Analysis Attacks: Analyze power consumption patterns.(Differential Power Analysis involves capturing and analyzing power consumption patterns to extract encryption keys.) Electromagnetic Attacks: Capture electromagnetic emissions.(eg: Electromagnetic Interference measurements can be used to infer data processed by a device.) Acoustic Attacks: Utilize sounds emitted by a device during cryptographic operations.(eg: Analyzing the sound produced by a keyboard.) Cache Attacks: Exploit information about the system’s cache memory.(eg: Attacks that analyze cache timing variations to infer data accessed by a cryptographic algorithm.).

[Audio] Mitigation Techniques: Constant-Time Algorithms: Ensure that algorithms take the same amount of time regardless of the input data. Secure Coding Practices: Follow best practices for secure coding such as avoiding branch predictions and using secure libraries. Hardware Security Modules (HSMs): Use dedicated hardware to perform sensitive operations making it harder for attackers to access sensitive data. Regular Security Audits and Testing: Regularly test and audit systems for potential side-channel vulnerabilities. Secure Design Principles: Follow secure design principles such as minimizing information leakage and using secure protocols..

[Audio] Real-World Examples: RSA Timing Attacks: Attackers measured the time taken by a server to decrypt messages using R-S-A revealing the secret key. Power Analysis Attacks on Smartcards: Attackers measured the power consumption of smartcards while performing cryptographic operations revealing the secret key. Spectre and Meltdown Attacks: Attackers exploited vulnerabilities in C-P-U architectures to access sensitive data including passwords and cryptographic keys..

[Audio] Conclusion: Side-channel attacks exploit physical implementation leaks. Various types including timing power electromagnetic and acoustic attacks. Implement countermeasures to mitigate risks and protect sensitive data..

[Audio] Thank You. THANK YOU.