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Secure Software Design Study Guide - C706 – Q’s and A’s
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Secure Software Design Study Guide - C706 – Q’s and A’s
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Secure Software Design Study Guide -C706 – Q’s and A’s
Confidentiality - -Information is not made available or disclosed to
unauthorized individuals, entities, or processes. Ensures unauthorized
persons are not able to read private and sensitive data. It is achieved
through cryptography.
-Integrity - -Ensures unauthorized persons or channels are not able to
modify the data. It is accomplished through the use of a message digest or
digital signatures.
-Availability - -The computing systems used to store and process
information, the security controls used to protect information, and the
communication channels used to access information must be functioning
correctly. Ensures system remains operational even in the event of a failure
or an attack. It is achieved by providing redundancy or fault tolerance for a
failure of a system and its components.
-Ensure Confidentiality - -Public Key Infrastructure (PKI) and
Cryptography/Encryption
-Ensure Availability - -Offsite back-up and Redundancy
-Ensure Integrity - -Hashing, Message Digest (MD5), non repudiation and
digital signatures
-Software Architect - -Moves analysis to implementation and analyzes the
requirements and use cases as activities to perform as part of the
development process; can also develop class diagrams.
-Security Practitioner Roles - -Release Manager,
Architect, Developer, Business Analyst/Project Manager
-Release Manager - -Deployment
-Architect - -Design
-Developer - -Coding
-Business Analyst/Project Manager - -Requirements Gathering
, -Red Team - -Teams of people familiar with the infrastructure of the
company and the languages of the software being developed. Their mission
is to kill the system as the developers build it.
-Static Analysis - -A method of computer program debugging that is done
by examining the code without executing the program. The process provides
an understanding of the code structure, and can help to ensure that the code
adheres to industry standards. It's also referred as code review.
-MD5 Hash - -A widely used hash function producing a 128-bit hash value.
Initially designed to be used as a cryptographic hash function, it has been
found to suffer from extensive vulnerabilities. It can still be used as a
checksum to verify data integrity, but only against unintentional corruption.
-SHA-256 (Secure Hash Algorithm) - -One of a number of cryptographic
hash functions. A cryptographic hash is like a signature for a text or a data
file. Generates an almost-unique, fixed size 32-byte
(32 X 8) hash. Hash is a one-way function - it cannot be decrypted.
-Advanced Encryption Standard (AES) - -A symmetric encryption algorithm.
The algorithm was developed by two Belgian cryptographers Joan Daemen
and Vincent Rijmen. Designed to be efficient in both hardware and software,
and supports a block length of 128 bits and key lengths of 128, 192, and 256
bits.
-Algorithms used to verify integrity - -MD5 Hash, SHA-256
-Algorithm used to verify confidentiality - -Advanced Encryption Standard
(AES)
-Stochastic - -unintentional or accidental
-safety-relevant faults - -stochastic (i.e., unintentional or accidental)
-security-relevant faults - -"Sponsored," i.e., intentionally created and
activated through conscious and intentional human agency.
-Fuzz Testing - -Used to see if the system has solid exception handling to
the input it receives. Is the use of malformed or random input into a system
in order to intentionally produce failure. This is a very easy process of
feeding garbage to the system when it expects a formatted input, and it is
always a good idea to feed as much garbage as possible to an input field.
-Three (3) Tier - -Removes the business logic from the client end of the
system. It generally places the business logic on a separate server from the
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