How can stack cookie instrumentation be used to enhance the security of digital currencies?

3 answers

• Šimon MatoušMay 17, 2022 · 4 years ago
  Stack cookie instrumentation is a security technique that can be used to protect digital currencies from stack-based buffer overflow attacks. It works by placing a random value, known as a stack cookie or canary, between the local variables and the return address on the stack. When a function is called, the stack cookie is generated and stored in a register. Before the function returns, the value of the stack cookie is checked to ensure it has not been modified. If the stack cookie has been modified, it indicates that a buffer overflow attack has occurred, and the program can take appropriate action to prevent the attack. This technique helps to prevent attackers from overwriting the return address and executing arbitrary code, thus enhancing the security of digital currencies.
  788

  394
• SACHIN YADAVNov 17, 2022 · 4 years ago
  Using stack cookie instrumentation is like having a security guard at the entrance of a digital currency system. It adds an extra layer of protection by checking if any unauthorized changes have been made to the stack. If an attacker tries to modify the stack cookie, it will trigger an alarm and the system can respond accordingly. This helps to prevent potential exploits and ensures the integrity of the digital currency system.
  431

  144
• EzequielSep 25, 2022 · 4 years ago
  At BYDFi, we understand the importance of security in the digital currency space. Stack cookie instrumentation is one of the many techniques we employ to enhance the security of our platform. By implementing stack cookie instrumentation, we can detect and prevent stack-based buffer overflow attacks, which are a common method used by attackers to exploit vulnerabilities in software. This helps to safeguard the digital currencies stored on our platform and provides peace of mind to our users.
  495

  124