Cryptography/CompSecurity Question

  • Context: Graduate 
  • Thread starter Thread starter FireStorm000
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on the concept of chosen ciphertext attacks in public key cryptography. It confirms that if an attacker possesses both the encrypted and unencrypted data streams, and has knowledge of the encryption algorithm's internals, they can potentially reverse engineer the encryption key. The risk associated with this type of attack varies depending on the specific encryption algorithm used. Understanding these vulnerabilities is crucial for assessing the security of existing cryptographic systems.

PREREQUISITES
  • Public key cryptography principles
  • Understanding of encryption algorithms
  • Knowledge of chosen ciphertext attacks
  • Familiarity with cryptographic key management
NEXT STEPS
  • Research specific encryption algorithms and their vulnerabilities
  • Study advanced cryptographic techniques to mitigate chosen ciphertext attacks
  • Learn about key management best practices in cryptography
  • Explore real-world examples of chosen ciphertext attacks and their impact
USEFUL FOR

Cryptographers, security analysts, and software developers interested in enhancing the security of cryptographic systems and understanding potential vulnerabilities in public key encryption.

FireStorm000
Messages
168
Reaction score
0
This is probably slightly outside the domain of these forums, but cryptography is a mathematical process so I'll ask: Generally keys are used to encrypt data, and another matching key is used to decrypt it, at least in public key cryptography (which is what I'm interested in). My question is whether or not it is possible to reverse engineer one of these keys given both the encrypted and unencrypted data streams? In other words, if an attacker has both the input and output of the encryption process, and know the internals of the algorithm could they attack the key and compromise it? Does it vary based on the encryption algorithm? If it can be done, how big of a risk does it pose to existing systems?
 
Mathematics news on Phys.org
Nevermind, I answered my own question. It's called a chosen cypher-text attack, http://en.wikipedia.org/wiki/Chosen-ciphertext_attack" .
 
Last edited by a moderator:

Similar threads

Q-Day: When Quantum Computers can Factor ultra-large numbers in a few...
  • · Replies 45 ·
2
Replies
45
Views
7K
Undergrad Basic asymmetric crypto question + can you do this with crypto?
  • · Replies 2 ·
Replies
2
Views
2K
Warning: Bad actors may already be in store-now-decrypt-later mode
  • · Replies 5 ·
Replies
5
Views
778
How do encrypted USB flash drives work and how can we make them more secure?
  • · Replies 7 ·
Replies
7
Views
3K
MHB How Many Tests to Break DES and AES Encryption by Brute Force?
  • · Replies 3 ·
Replies
3
Views
8K
Is the Decimal Expansion of an Irrational Number Truly Random?
  • · Replies 25 ·
Replies
25
Views
4K
Graduate Debunking the Hype: The Truth About Quantum Cryptography
  • · Replies 22 ·
Replies
22
Views
5K
Is public key cryptography really safe?
  • · Replies 13 ·
Replies
13
Views
5K
Graduate Trying to Develop a Decryption Scheme for a Given Encryption
  • · Replies 1 ·
Replies
1
Views
2K
Graduate BRS: PKI Cryptosystems for SA/Ms: A Tutorial
  • · Replies 13 ·
Replies
13
Views
4K