Decrypting files & forgotten password

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SUMMARY

The discussion centers around decrypting files encrypted with Axcrypt 128-bit encryption after forgetting the password. Participants emphasize the difficulty of cracking such encryption without the password, suggesting strategies like recalling potential passwords or using a dictionary attack. They also discuss the theoretical implications of quantum computing on decryption, noting that while quantum computers may revolutionize certain encryption methods, they may not significantly expedite the decryption of a forgotten password. Ultimately, the consensus is that without the password, recovery is highly unlikely.

PREREQUISITES
  • Understanding of Axcrypt 128-bit encryption
  • Familiarity with dictionary attacks in password recovery
  • Basic knowledge of quantum computing principles
  • Awareness of file encryption mechanisms and their security
NEXT STEPS
  • Research advanced techniques for password recovery, including brute force and dictionary attacks
  • Explore the implications of quantum computing on encryption, specifically Shor's algorithm
  • Learn about the mechanics of AES encryption and how it relates to Axcrypt
  • Investigate best practices for securely storing and managing passwords
USEFUL FOR

Individuals dealing with forgotten passwords, cybersecurity professionals, and anyone interested in the intersection of encryption technology and quantum computing.

  • #31
psnkeras said:
8 years passed ,maybe your password has expired,obviously,it doesn't make sense if you try "Password " one by one ,you can brute force unlock password , it will be faster .
jedisrhfu said:
Passwords don't expire for media files that I know of but that would be a cool patent idea. Basically if you access it after the expiration date the file destructs or simply refuses to open. This would require code in the OS that recognized files of this type and would check the date encoded in the file before decrypting it. This does not exist today that I know of unless its embedded in document management product.
Sometimes the password expires, and even if you enter the correct password, the computer can't recognize it,
 
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  • #32
psnkeras said:
Sometimes the password expires, and even if you enter the correct password, the computer can't recognize it,
Password expiration is a mechanism typically used in access control systems, almost exclusively for logon/login user passwords. In such systems, password expiration typically means that users are prompted to change their passwords at the first logon/login after a preset interval, such as a year or a month. When they do that, the new password becomes active, and the old one becomes expired.

That means that if Jim, a user of a system with a one-month password retention policy tells his co-worker Joe his password, so that Joe can use Jim's access profile (in most cases that's a security policy violation), and Joe tries to use Jim's account after Jim has had to change the password, Joe will be stopped by the expiration, unless he's privy to the new password.

In general, a password remains valid until it's changed, so the most recent password will be valid forever, until the expiration policy requires it to be changed at the first new logon/login that occurs after the expiration of the retention period, whereupon the new password will become the most recent, and so forth.
 
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  • #33
after reading the whole thread, it seems using a password manager is necessary for keeping a record for all accounts.
 
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  • #34
nevpossi said:
after reading the whole thread, it seems using a password manager is necessary for keeping a record for all accounts.
Sounds like you have a nice spam link you'd like to post. Go ahead... :wink:
 
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  • #35
berkeman said:
Sounds like you have a nice spam link you'd like to post. Go ahead... :wink:
just kidding me?
 

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