Difference between revisions of "Category:Cryptographic Vulnerability"

Revision as of 19:45, 15 September 2006

This category is for tagging vulnerabilities that related to cryptographic modules.

Examples

• Algorithm Problems
  • Insecure Algorithm
    • Use algorithms that are proven flawed or weak (DES, MD5)
    • Use non-standard (home-grown) algorithms
  • Choose the wrong algorithm
    • Use hash function for encryption
    • Use encryption algorithm for hashing
  • Inappropriate use of an algorithm
    • Use insecure encryption modes (DES EBC)
    • Initial vector is not random
  • Implementation errors
    • Use non-standard cryptographic implementations/libraries
• Key Management Problems
  • Weak keys
    • Too short or not random enough
    • Use human chosen passwords as cryptographic keys
  • Key disclosure
    • Keys not encrypted during storage or transmission
    • Keys not cleaned appropriately after use
    • Keys Hard-coded in the code or stored in configuration files
  • Key updates
    • Allow keys aging
• Random Number Generator (RNG) Problems
  • Poor random number generators (c: rand(), Java: java.util.Random())
  • Forget to seed the random number generator
  • Use the same seed for the random number generator every time

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