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Showing 14 of 14 results by GiladLeef
If you have a GPU, you should try Hashcat (Free & Open Source) or Passware lab kit (Paid, Closed Source).
If you have a CPU, You can also take a look at the oldie one, BTCRecover, or, johnny (John The Ripper) but, these are way slower, and useful only if you got a real clue about the password. If you want to try all the possible combinations, don't use them.
I had an idea for a really long time about creating a software that will split the work between different parties, trying to brute force the password.
I just wanna say that it is possible to implement some kind of a brute forcer, that will brute force the ckey/mkey, (these are the encrypted private keys, not the encrypted password) much faster than what Hashcat does for example.
By the way, Hashcat will ask you for a hash. Get that using a script named "bitcoin2john.py"
If you have a CPU, You can also take a look at the oldie one, BTCRecover, or, johnny (John The Ripper) but, these are way slower, and useful only if you got a real clue about the password. If you want to try all the possible combinations, don't use them.
I had an idea for a really long time about creating a software that will split the work between different parties, trying to brute force the password.
I just wanna say that it is possible to implement some kind of a brute forcer, that will brute force the ckey/mkey, (these are the encrypted private keys, not the encrypted password) much faster than what Hashcat does for example.
By the way, Hashcat will ask you for a hash. Get that using a script named "bitcoin2john.py"
Hi everyone,
Recently I got access to an encrypted wallet.dat which contains 4000 Bitcoins. The problem is, the wallet is encrypted, and I don't have the coding skills to brute force it. Therefore, I am looking for someone who can help me with this. I know that the password is 9-10 characters long, contains "r", "u", "@" and "." and I know that the password is an email. Is this even worth decrypting? Or it is impossible to get the password just based on this information?
Any help is appreciated. Thanks!
Recently I got access to an encrypted wallet.dat which contains 4000 Bitcoins. The problem is, the wallet is encrypted, and I don't have the coding skills to brute force it. Therefore, I am looking for someone who can help me with this. I know that the password is 9-10 characters long, contains "r", "u", "@" and "." and I know that the password is an email. Is this even worth decrypting? Or it is impossible to get the password just based on this information?
Any help is appreciated. Thanks!
Well, you gotta understand a few things:
1 - This wallet is publicly available, and cause of that, you are probably not the first one trying to brute force it.
2 - The coins are still in the wallet because of two possible options - the wallet file is fake - or the password is too hard to brute force. Say all the chars on the standard english keyboard layout are possibly in the password, and that's easily gets to a huge number of possibilities you can't even think about cracking. If you still wanna try, I can help you out, but don't expect it to work after a day or two letting your compiter run.
Re: Selling 4 original Beatles Mini-Records, Two with original signatures.
...with possible signatures (which needed to be checked, and i will check it), are worth more than my lunch :-)
...
...
first of all these records are in very bad condition... but these are not even "possible" signatures of the beatles.
you can take a look at the beatles' signatures for yourself (see a site for buying and selling memorabilia here)
https://www.we-buy-beatles.com/beatles-memorabilia/beatles-autographs
and you immediately realize that there isn't even the remote possibility that those on those records are beatles' signatures. they are not even imitations! I mean... ok have some doubts but
have you ever made a check? maybe here we are not the main forum where to sell objects related to the beatles ... try on ebay or elsewhere...
Oh well, i see...
Re: Selling 4 original Beatles Mini-Records, Two with original signatures.
Just because they are old and probably not 1st releases and are The Beatles
doesn't mean they are "valuable".
The go-to place for a valuation is discogs.com.
From me to You SOE 3 739 all releases starting at $8
https://www.discogs.com/master/352505-The-Beatles-From-Me-To-You
The only way the OP's vinyl will be worth anything substantial is if they are rare variant.
If I want these just to play every so often, they need to be playable without damaging the stylus
of my player etc. they will only be worth ~$10 each.
If I'm a collector and want to add something valuable to the collection these are not them
provided they are not rare.
doesn't mean they are "valuable".
The go-to place for a valuation is discogs.com.
From me to You SOE 3 739 all releases starting at $8
https://www.discogs.com/master/352505-The-Beatles-From-Me-To-You
The only way the OP's vinyl will be worth anything substantial is if they are rare variant.
If I want these just to play every so often, they need to be playable without damaging the stylus
of my player etc. they will only be worth ~$10 each.
If I'm a collector and want to add something valuable to the collection these are not them
provided they are not rare.
Wouldn't say they are worth $10 each.
I guess we all value stuff differently. For me, recording of a band like the Beatles, from their original release, with possible signatures (which needed to be checked, and i will check it), are worth more than my lunch :-)
Anyways, he won't sell it for that kind of price, people locally here are willing to pay higher.
Re: Selling 4 original Beatles Mini-Records, Two with original signatures.
Seeing as the condition of the vinyls and sleeves is poor and doing some quick lookup on their value,
I would think in the $40 range would be a good valuation for the lot.. maybe a little less due to the fact they have random names and writing on them
I would think in the $40 range would be a good valuation for the lot.. maybe a little less due to the fact they have random names and writing on them
Are you joking?
Even if the condition is bad, and the signatures were not made by the Beatles themselves, looking at the fact that these are working, original-released mini-records from the early 60s of the Beatles, it's worth way higher than $40.
Re: Selling 4 original Beatles Mini-Records, Two with original signatures.
They have an apartment that they rent out to a tenant. The tenant's grandfather recently passed away, and he received a box full of vintage items.
My uncle bought the records that were in the box from him. It is not known who signed the album, but it has not been faked, for sure.
You can look at the records signatures from the images attached.
My uncle does not have a turntable, so he couldn't try to play them. I do have, i can test them for you and even record a video of them playing if you'd like me to do so, but since they are from the early 60s, keep in mind that they won't sound the best:)
Let me ask him how much he wants for them:)
My uncle bought the records that were in the box from him. It is not known who signed the album, but it has not been faked, for sure.
You can look at the records signatures from the images attached.
My uncle does not have a turntable, so he couldn't try to play them. I do have, i can test them for you and even record a video of them playing if you'd like me to do so, but since they are from the early 60s, keep in mind that they won't sound the best:)
Let me ask him how much he wants for them:)
Selling 4 original Beatles Mini-Records, Two with original signatures.
My uncle recently found four original beatles mini-records from the early 60s, bought in England. I am looking to sell them. Have a look!
https://postimg.cc/gallery/90wjhGx
I live in israel, and willing to deal for bitcoins/fiat. My uncle can have a zoom call with you to talk about the records. Please leave your bids here.
https://postimg.cc/gallery/90wjhGx
I live in israel, and willing to deal for bitcoins/fiat. My uncle can have a zoom call with you to talk about the records. Please leave your bids here.
Yeah, everything i said is in case the key IS even.
Anyways,
About reusing the same nonce twice? This can break the security.
I found some python 2.7 scripts on GitHub named "R-Scanner" that can search addresses for this type of vulnerabilities.
But they all do not work (They all forks of https://github.com/ca333/rng-scanner) even when i tried to migrate to Python 3 and debug.
Think about it,
If anyone would have a simple script that searches a blockchain API for this type of transactions...
Anyways,
About reusing the same nonce twice? This can break the security.
I found some python 2.7 scripts on GitHub named "R-Scanner" that can search addresses for this type of vulnerabilities.
But they all do not work (They all forks of https://github.com/ca333/rng-scanner) even when i tried to migrate to Python 3 and debug.
Think about it,
If anyone would have a simple script that searches a blockchain API for this type of transactions...
@stanner.austin
What do you mean?
These two Private Keys:
0000000000000000000000000000000000000000000000002000000000000000
0000000000000000000000000000000000000000000000001000000000000000
Are definitely in two different ranges.
You can see that by converting them into binary, you will see that one is longer than the other.
What do you mean?
These two Private Keys:
0000000000000000000000000000000000000000000000002000000000000000
0000000000000000000000000000000000000000000000001000000000000000
Are definitely in two different ranges.
You can see that by converting them into binary, you will see that one is longer than the other.
Of course.
But I didn't talk about that.
Reducing the keyspace is possible, and I can prove it.
One way to do it, is the following way:
Say we have these keys:
0000000000000000000000000000000000000000000000002000000000000000 // HEX Private Key, Hidden from us.
02ae86eeea252b411c1cdc36c284482939da1745e5a7e4da175c9d22744b7fd72d // Compressed Public Key, Known By us.
We can do some math on the curve with the public key, to help us brute force it faster - because we will brute force another key, in a smaller range.
Let's multiply the public key by 57896044618658097711785492504343953926418782139537452191302581570759080747169.
We get this new Public Key:
0206f9d9b803ecf191637c73a4413dfa180fddf84a5947fbc9c606ed86c3fac3a7
And, this new public key's private key, is:
0000000000000000000000000000000000000000000000001000000000000000.
So, if we would like to brute force 02ae86eeea252b411c1cdc36c284482939da1745e5a7e4da175c9d22744b7fd72d, we could make it 2x faster, using this method, on even keys.
But I didn't talk about that.
Reducing the keyspace is possible, and I can prove it.
One way to do it, is the following way:
Say we have these keys:
0000000000000000000000000000000000000000000000002000000000000000 // HEX Private Key, Hidden from us.
02ae86eeea252b411c1cdc36c284482939da1745e5a7e4da175c9d22744b7fd72d // Compressed Public Key, Known By us.
We can do some math on the curve with the public key, to help us brute force it faster - because we will brute force another key, in a smaller range.
Let's multiply the public key by 57896044618658097711785492504343953926418782139537452191302581570759080747169.
We get this new Public Key:
0206f9d9b803ecf191637c73a4413dfa180fddf84a5947fbc9c606ed86c3fac3a7
And, this new public key's private key, is:
0000000000000000000000000000000000000000000000001000000000000000.
So, if we would like to brute force 02ae86eeea252b411c1cdc36c284482939da1745e5a7e4da175c9d22744b7fd72d, we could make it 2x faster, using this method, on even keys.
So, the only way to get the private key of a public key, is simple guessing it/brute forcing it - Which can take forever to compute at some key ranges.
But What if we could reduce the key range? For example, if a public key is even, you can multiply it by 57896044618658097711785492504343953926418782139537452191302581570759080747169
And get a new public key, which is in the original range -1-bit range, which its private key is / 2 the value of the original private key.
And you can also use other methods to reduce the public key ranges even more, using only pure math.
I'd like this topic to be a home for new math tricks for making secp256k1 easier to brute force, mainly for the bitcoin puzzle transaction.
Thanks! Gilad.
But What if we could reduce the key range? For example, if a public key is even, you can multiply it by 57896044618658097711785492504343953926418782139537452191302581570759080747169
And get a new public key, which is in the original range -1-bit range, which its private key is / 2 the value of the original private key.
And you can also use other methods to reduce the public key ranges even more, using only pure math.
I'd like this topic to be a home for new math tricks for making secp256k1 easier to brute force, mainly for the bitcoin puzzle transaction.
Thanks! Gilad.
Thanks to everyone who wrote!
Whoever gives me the best name - i'll fork bitcoin or litecoin for him!
The whole purpose of the project is make Proof of work and proof of stake work together.
i'm building a new blockchain, that the first 26832000 coins will be created with both PoW and PoS, (PoW reward: 52, PoS reward: i don't know yet)
and every single coin that will be created after that 26832000 coins, will be created using PoS.
Thanks!
Whoever gives me the best name - i'll fork bitcoin or litecoin for him!
The whole purpose of the project is make Proof of work and proof of stake work together.
i'm building a new blockchain, that the first 26832000 coins will be created with both PoW and PoS, (PoW reward: 52, PoS reward: i don't know yet)
and every single coin that will be created after that 26832000 coins, will be created using PoS.
Thanks!
Hi,
My name is Gilad Leef and i'm currently developing a new Cryptocurrency.
all the idea was to make Proof Of Work and Proof Of Stake work together.
it's Scrypt based coin, that at the start will support Proof of work and proof of stake and after 26,832,000 coins, it will support only proof of stake.
do you have a cool name for my project?
You can also contact me at Gilad.leef@gmail.com.
thanks.
My name is Gilad Leef and i'm currently developing a new Cryptocurrency.
all the idea was to make Proof Of Work and Proof Of Stake work together.
it's Scrypt based coin, that at the start will support Proof of work and proof of stake and after 26,832,000 coins, it will support only proof of stake.
do you have a cool name for my project?
You can also contact me at Gilad.leef@gmail.com.
thanks.