How many bits does Syskey use for encryption?
Steven the hacker realizes that the network administrator of company is using syskey to protect organization resources in the Windows 2000 Server. Syskey independently encrypts the hashes so that physical access to the server, tapes, or ERDs is only first step to cracking the passwords. Steven must break through the encryption used by syskey before he can attempt to brute force dictionary attacks on the hashes. Steven runs a program called "SysCracker" targeting the Windows 2000 Server machine in attempting to crack the hash used by Syskey. He needs to configure the encryption level before he can launch attach.
How many bits does Syskey use for encryption?
what would this type of usage be known as?
Symmetric encryption algorithms are known to be fast but present great challenges on the key management side. Asymmetric encryption algorithms are slow but allow communication with a remote host without having to transfer a key out of band or in person. If we combine the strength of both crypto systems where we use the symmetric algorithm to encrypt the bulk of the data and then use the asymmetric encryption system to encrypt the symmetric key, what would this type of usage be known as?
How would the attacker use netcat to encrypt information before transmitting it on the wire?
An attacker runs netcat tool to transfer a secret file between two hosts.
Machine A: netcat -1 p 1234 < secretfile
Machine B: netcat 192.168.3.4 > 1234
He is worried about information being sniffed on the network.
How would the attacker use netcat to encrypt information before transmitting it on the wire?
Which of the following tools can she use to protect the link?
Jane wishes to forward X-Windows traffic to a remote host as well as POP3 traffic. She is worried that adversaries might be monitoring the communication link and could inspect captured traffic. She would line to tunnel the information to the remote end but does not have VPN capabilities to do so.
Which of the following tools can she use to protect the link?
Which programming language is NOT vulnerable to buffer overflow attacks?
Which programming language is NOT vulnerable to buffer overflow attacks?
which of the following registers gets overwritten with return address of the exploit code?
In Buffer Overflow exploit, which of the following registers gets overwritten with return address of the exploit code?
Which of the following built-in C/C++ functions you should avoid to prevent your program from buffer overflow
Which of the following built-in C/C++ functions you should avoid to prevent your program from buffer overflow attacks?
What is a good example of a programming error that Bob can use to explain to the management how encryption wil
Bob has a good understanding of cryptography, having worked with it for many years. Cryptography is used to secure data from specific threats but it does not secure the data from the specific threats but it does no secure the application from coding errors. It can provide data privacy; integrity and enable strong authentication but it can’t mitigate programming errors. What is a good example of a programming error that Bob can use to explain to the management how encryption will not address all their security concerns?
Choose one of the following pseudo codes to describe this statement:
Choose one of the following pseudo codes to describe this statement:
If we have written 200 characters to the buffer variable, the stack should stop because it cannot hold any more data.
what does it indicate?
A simple compiler technique used by programmers is to add a terminator ‘canary word’ containing four letters NULL (0x00), CR (0x0d), LF (0x0a) and EOF (0xff) so that most string operations are terminated. If the canary word has been altered when the function returns, and the program responds by emitting an intruder alert into syslog, and then halts what does it indicate?