Описание презентации Brute Force Attack By Kuspan Almas Overview по слайдам
Brute Force Attack By Kuspan Almas
Overview What is Brute Force Attack Password Length Guesses Brute Force Attack Limits Unbreakable codes Countermeasures Questions References
What is Brute Force Attack Part of cryptography Attack used against passwords Checks all possible keys Depends on the key length
Password Length Guesses 2 characters = 3, 844 guesses because of: First character: lower case letters (26) + upper case letters (26) + numbers (10) = 62 Second character: same = 62 Total permutations = 62*62 = 3,
Brute Force Attack Limits
Unbreakable Codes Protected by their mathematical properties One-time Pad cryptography Protected by the ability to generate random sequences of key bits Can be defeated if not implemented correctly
Countermeasures Used by the administrators of databases and directories Limiting number of password attempts Restriction on IP address