Question

What is the easiest way to check Cryptex's password verification process?

a.

Create an archive

b.

Start Cryptex in a debugger

c.

Type in the correct password

d.

Trace back from printf call

Posted under Reverse Engineering

Answer: (b).Start Cryptex in a debugger Explanation:The easiest way to go about checking Cryptex's password verification process is to start Cryptex in a debugger, feeding it with an incorrect password, and catch the place in the code where Cryptex notifies the user that a bad password has been supplied.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. What is the easiest way to check Cryptex's password verification process?

Add Comment

Similar Questions

Discover Related MCQs

Q. Which runtime library function does Cryptex use for printing messages to the console window?

View solution

Q. What does the presence of the printf function in the runtime library list tell you?

View solution

Q. Which DLL module reveals that Cryptex apparently uses direct calls into Win32 File I/O APIs such as CreateFile, ReadFile, WriteFile, etc.?

View solution

Q. What does the use of the Windows Crypto API by Cryptex indicate?

View solution

Q. What library function does Cryptex use to print messages to the console window?

View solution

Q. How can a memory breakpoint be set in OllyDbg?

View solution

Q. What is a hash, according to MSDN?

View solution

Q. What is the purpose of the CryptCreateHash function?

View solution

Q. What does MD stand for in MD5?

View solution

Q. What is the purpose of the MD5 hashing algorithm?

View solution

Q. What are the two basic properties of MD5 and other cryptographic hashes?

View solution

Q. What is Cryptex doing with the data it is hashing?

View solution

Q. What does Cryptex do if the value in the global variable does not match the value stored in the Cryptex archive file?

View solution

Q. What is the purpose of cryptographic hashing algorithms?

View solution

Q. What are the two basic properties of cryptographic hashes?

View solution

Q. Which cryptographic hashing algorithm is used by Cryptex?

View solution

Q. What is the length of an SHA hash?

View solution

Q. What is the purpose of the CryptDeriveKey API?

View solution

Q. Why does Cryptex calculate an additional MD5 hash from the SHA hash?

View solution

Q. Why doesn't Cryptex store the SHA hash directly in the file header?

View solution

View All MCQs on Reverse Engineering

Suggested Topics

Are you eager to expand your knowledge beyond Reverse Engineering? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

CompTIA PenTest+ Certification Exam PT0 002

Prepare for the CompTIA PenTest+ PT0-002 exam with our targeted MCQs. Covering...

MATLAB

Hone your computational mathematics skills with our MATLAB MCQs. Understand...

Java Programming

Level up your coding skills with our Java Programming MCQs. From object-oriented...

IT Fundamentals

Navigate the basics of information technology with our IT Fundamentals MCQs. Get a...

Computer Hardware

Explore the tangible components of computers with our Computer Hardware MCQs. Learn...

Reverse Engineering

Strengthen your understanding of Reverse Engineering with our curated set of MCQs....

Data Structures and Algorithms

Journey through the fundamentals of Data Structures and Algorithms with our extensive...

R Programming

Unleash the power of statistical computing with our R Programming MCQs. Topics cover...

Discrete Mathematics

Refine your mathematical skills essential for computer science with our Discrete...