How long does it take to brute force BitLocker?
Assuming we could somehow process 500 trillion passwords an hour (which would be 3,623 times more than the ~138 billion passwords per hour capability of a desktop computer in 2008 under 10% load), it would still take us ~7.7 x 10^19 years to brute force crack this 48 character numerical recovery password.
| New disk | 1-5 minutes |
|---|---|
| 1 TB / 300 GB used | 10 hours |
| 2 TB / 1.5 TB used | 50 hours |
Disabling BitLocker
NOTE: Decryption can take anywhere from 20 minutes to a couple of hours depending on the amount of data that has been encrypted, the speed of the computer, and whether the process is interrupted by the computer being powered off or going to sleep.
Recent computers manufactured within the last 10ish years can brute force crack an 8 character alphanumeric password – capitals and lowercase letters, numbers, and special characters – in about two hours. Computers are so fast that they can brute force decrypt a weak encryption hash in mere months.
BitLocker Device Protection does NOT employ user-selectable passwords, and CANNOT be broken into by brute forcing anything.
As a result, in order to unlock the volume and decrypt the data, you will need either the original piece of hardware (and possibly other credentials); the brute force attack will not be feasible.
Is it possible to break a Windows BitLocker password? Absolutely not. If you're talking about having a computer with a BitLocker encrypted disk which is switched off, then the encryption is as secure as the password itself. Brute force is the only way in.
BitLocker Drive Encryption can now be successfully cracked with Passware Kit …
A seven-character complex password could be cracked in 31 seconds, while one with six or fewer characters could be cracked instantly. Shorter passwords with only one or two character types, such as only numbers or lowercase letters, or only numbers and letters, would take just minutes to crack.
What happens if the computer is turned off during encryption or decryption? If the computer is turned off or goes into hibernation, the BitLocker encryption and decryption process will resume where it stopped the next time Windows starts. This is true even if the power is suddenly unavailable.
How long does it take to decrypt a 1tb hard drive?
Answers. Hi, Usually, it takes several hours on encryption or decryption, but it is based on the size of your hard drive and computer performance.
- Enable Bitlocker in the running OS, but pause the encryption once it's in progress.
- Create a recovery disk, boot it up, go to command line.
- Resume encryption of the drive using "manage-bde -resume" while in the recovery environment.
It would take up to 112 hours to brute force a 4 digit PIN, because each PIN entry takes 40 seconds.
The findings suggest that even an eight-character password — with a healthy mix of numbers, uppercase letters, lowercase letters and symbols — can be cracked within eight hours by the average hacker.
10 characters: 3.76 quadrillion possible combinations
Cracking offline, using massively parallel multiprocessing clusters or grid (one hundred trillion guesses per second: 37.61 seconds.
The thing is, while BitLocker is nearly a 100% effective solution for protecting the bare drive, it might not be as secure if the intruder has access to the entire computer with the hard drive installed. Even if your computer is equipped with a TPM2.
For Windows users, follow this: go to the search box and type 'cmd' > right-click on the Command Prompt and select 'Run as administrator' > type the command: manage-bde -unlock driveletter: -password > enter the password and press the Enter key.
Formatting from My Computer is not possible for Bitlocker-enabled hard drive. Now you get a dialog stating all your data will be lost. Click"Yes" you'll get another dialog stating"This drive is Bitlocker enabled,formatting it will remove Bitlocker.
A simple recalculation would give you approximately 545 years. As you can see, 64 bits is pretty much on the border of being cracked by general computers.
There are around 32 million seconds in a year. 32 million is 25 doublings. So if you can crack a 64-bit key in a second it will take a year for an 89-bit key (64 + 25). A million is 20 doublings, so an 109-bit key will take a million years.
How long does it take to break 128-bit encryption?
As shown above, even with a supercomputer, it would take 1 billion billion years to crack the 128-bit AES key using brute force attack. This is more than the age of the universe (13.75 billion years).
Answers. Hi, Usually, it takes several hours on encryption or decryption, but it is based on the size of your hard drive and computer performance.
With the right quantum computer, AES-128 would take about 2.61*10^12 years to crack, while AES-256 would take 2.29*10^32 years. For reference, the universe is currently about 1.38×10^10 years old, so cracking AES-128 with a quantum computer would take about 200 times longer than the universe has existed.
In today's level of technology, it is still impossible to break or brute-force a 256-bit encryption algorithm. In fact, with the kind of computers currently available to the public it would take literally billions of years to break this type of encryption.
So on our hypothetical machine, a 56-bit DES key would take, on average, 255/246.5=28.5≈362 seconds to find. Similarly, a 128-bit AES key would take 2127/246.5=280.5 seconds ≈255 (or approximately 36 quadrillion) years to find.
