Passphrase recovery | Bitcointalksearch.org

arieq

sr. member

Activity: 364

Merit: 256

Quote from: STT on July 08, 2014, 08:48:14 PM

Kinda related but whats the current estimate on 8 digit brute force winrar crack? Is that still years also

To brute force the entire 8 digit winrar password with 96 charset (mixed upper and lower case alphabet plus numbers and common symbols) will take about 229 years (7.2 quadrillion password combinations)

source : http://www.lockdown.co.uk/?pg=combi

another good source to compare : http://calc.opensecurityresearch.com/

STT

legendary

Activity: 4060

Merit: 1448

Kinda related but whats the current estimate on 8 digit brute force winrar crack? Is that still years also

arieq

sr. member

Activity: 364

Merit: 256

Quote from: Nobitcoin on July 08, 2014, 01:42:54 PM

A month such a short time make take months or years to recover.

Agree, the wallet would need to be "brute forced" cracked which is currently not an option for bitcoin wallets, especially if it was more than a handful of characters long. The bitcoin wallet encryption is strong by design. To brute force, we need to be able to do millions of attempts per second. This is currently impossible for the bitcoin wallet. A general quad core i7 computer can only makes 10-13 attempts per second.

However, if we have a good idea of the password (and also the length of the password), then it won't take months or even weeks to break it. Hopefully, he knows what the password should have been but maybe he is one character off or the capitalization is off. These common mistakes are the most likely reason that he is locked out of his wallet. Dont be worried, I can offer you some helps.

Nobitcoin

legendary

Activity: 966

Merit: 1000

In holiday we trust

A month such a short time make take months or years to recover. How long was your passphrase anyway?

Justin00

legendary

Activity: 910

Merit: 1000

★YoBit.Net★ 350+ Coins Exchange & Dice

why'd you bother to make the thread then :/

anyways your choice mate

Quote from: houseo on July 07, 2014, 06:08:40 PM

Quote from: Justin00 on July 07, 2014, 06:01:05 PM

name names ?
so others do not select the script running... errr password recovery specialist Wink

no, not at that point. i still have faith. i mean it may be the coins are not recoverable, which is unfortunate, but I'd at least like an update on how the passphrase cracking attempt is progressing. it's been about a month.

arieq

sr. member

Activity: 364

Merit: 256

@houseo:

If you have a good idea of what the passphrase was, I can offer you some help

pm me for more detail

houseo

full member

Activity: 181

Merit: 102

Quote from: Justin00 on July 07, 2014, 06:01:05 PM

name names ?
so others do not select the script running... errr password recovery specialist Wink

no, not at that point. i still have faith. i mean it may be the coins are not recoverable, which is unfortunate, but I'd at least like an update on how the passphrase cracking attempt is progressing. it's been about a month.

Justin00

legendary

Activity: 910

Merit: 1000

★YoBit.Net★ 350+ Coins Exchange & Dice

name names ?
so others do not select the script running... errr password recovery specialist Wink

houseo

full member

Activity: 181

Merit: 102

I sent my information to a recommended bip38 passphrase recovery specialist.

I had a good idea of what the phrase was. At first he was quite responsive, but of late I have not heard anything back. The coins are still in the wallet but I'd like to recover them, or at least know of how the attempts are coming along, but the communication lately has disappeared. I guess there's not much I can do, just feel like venting.

Topic: Passphrase recovery (Read 797 times)