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Showing 20 of 10,738 results by BlackHatCoiner
Προσπαθώ να καταλάβω, πως σχετίζεται η μελέτη του Bitcoin με το ότι απομονώνεσαι από τη κοινωνία;
Έχει σχέση, γιατί αν μείνεις στη λαγουδότρυπα για αρκετό καιρό, θα αρχίζεις να καταλαβαίνεις πως πραγματικά λειτουργεί ο κόσμος, και θα σου αλλάξει το δικαιοδοτικό κώδικα. Για παράδειγμα, πριν μάθεις για το bitcoin, ήξερες ότι το χρήμα είναι το fiat, και οκέυ, είχε πολλά συμπτώματα στην κοινωνία, αλλά η εναλλακτική (π.χ., gold standard) δεν θα είχε τρομερή διαφορά, και δεν ήταν πρακτικά δυνατό να γυρίσει ο κόσμος πίσω σε αυτό για πολλούς λόγους. Δηλαδή, πέρναγες από οικονομικές κρίσεις που σε έκλεβαν οι πολιτικοί και τραπεζικοί, αλλά δε μπορούσες πρακτικά να κάνεις κάτι. Τώρα, μπορείς. Αυτό σε απομονώνει, γιατί οι υπόλοιποι είναι παραδωμένοι στο ίδιο σύστημα που τους εκμεταλλεύεται, ενώ εσύ έχεις ξυπνήσει. Από τη δική μου πείρα, αυτό κάνει πιο δύσκολη την κοινωνικοποίηση, γιατί απλά θεωρώ ότι έχω πιο σημαντικά πράγματα να ασχοληθώ από αυτά που ασχολείται η μάζα.
Re: Hal Finney predicted Bitcoin banks, how does the software look like?
He is clearly talking about IOUs of bitcoin, and you can tell from his mention on fractional reserve banking. What he probably imagined is a digital initiative of a gold standard. Banks used to provide IOUs of paper money, that were redeemable for gold; I understand it by the emphasis on nationalization of money:
(Before "nationalization of currency", there was gold standard.)
Quote
Bitcoin backed banks will solve these problems. They can work like banks did before nationalization of currency.
(Before "nationalization of currency", there was gold standard.)
Re: Kanye West claims to have rejected $2M offer to promote crypto scam
There's nothing to be careful for. If someone asks you to "invest" in their unregulated, made-up worthless token, and you do it because you convince yourself that it will go up in value, then you're getting what you deserve.
Greed is one of the seven deadly sins for a reason.
Greed is one of the seven deadly sins for a reason.
⭐ Merited by Agbe (1)
Just signed up a few minutes ago and immediately found a board that suited me, I think every community has rules, if you don't mind, what are the absolute rules?
Here's what you're looking for: Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ.Here's what you might also be looking for: FAQ: Everything you need to know about forum 'activity, account ranks and merit.
Quote
I'm someone who likes to share referral links from mini-apps that I work on Telegram, is sharing referral links here allowed?
As you can see, it is not:Quote from: https://bitcointalk.org/index.php?topic=703657.0
4. No referral code (ref link) spam.
This act, in my view, demonstrated that Bitcoin was not intended to be a commercial product but rather a tool for the people, regardless of whether it would generate profit.
But it still is not a product. It's a protocol; a technology in which products can be made of it. There are a host variety of services that are sold in the market, such as exchanges, that use bitcoin, just as there are a variety of services that sell Internet related products, while the Internet is not "owned" by anyone, it's just a protocol. In fact, it's so decentralized that it uncontrollably evolved from what the creator might intended it to be.
It may be difficult to write on paper, so it is better if you saved it in a file and encrypted it.
Haven't they initiated a mnemonic standard yet? Seed phrases FTW. Re: I found a method to reverse public keys to private keys
could you try this code? I'm pretty sure i didn't fuck it up by having a backdoor by mistake.
No, and I don't think mine is faulty either. You said you can do something. It turns out that you cannot, unless readers run your key generation program. Re: I found a method to reverse public keys to private keys
Idk man, maybe i did something wrong in my script. can you verify that it randomly generates signatures with random utpo 200 bit key and nonce?
Here's my program. As you can see, private key and nonce values are 160 bits. Code:
import random
import hashlib
from ecdsa import SigningKey, SECP256k1
from ecdsa.util import sigdecode_string, sigencode_string
weak_private_key_int = random.getrandbits(160)
weak_private_key = SigningKey.from_secret_exponent(weak_private_key_int, curve=SECP256k1)
public_key = weak_private_key.verifying_key
print("Weak Private Key (Hex):", hex(weak_private_key_int))
print("Public Key (Hex):", public_key.to_string("compressed").hex())
message1 = b"BlackHatCoiner"
message2 = b"Break this message"
z1 = int.from_bytes(hashlib.sha256(message1).digest(), "big")
z2 = int.from_bytes(hashlib.sha256(message2).digest(), "big")
weak_k1 = random.getrandbits(160)
weak_k2 = random.getrandbits(160)
signature1 = weak_private_key.sign_digest_deterministic(
hashlib.sha256(message1).digest(),
sigencode=sigencode_string,
extra_entropy=weak_k1.to_bytes(32, 'big') # Inject weak k
)
signature2 = weak_private_key.sign_digest_deterministic(
hashlib.sha256(message2).digest(),
sigencode=sigencode_string,
extra_entropy=weak_k2.to_bytes(32, 'big') # Inject weak k
)
r1, s1 = sigdecode_string(signature1, weak_private_key.curve.order)
r2, s2 = sigdecode_string(signature2, weak_private_key.curve.order)
print("\nSignature 1:")
print(f"R1 = {hex(r1)}")
print(f"S1 = {hex(s1)}")
print(f"Z1 = {hex(z1)}")
print(f"k1 = {hex(weak_k1)} (Weak Nonce)")
print("\nSignature 2:")
print(f"R2 = {hex(r2)}")
print(f"S2 = {hex(s2)}")
print(f"Z2 = {hex(z2)}")
print(f"k2 = {hex(weak_k2)} (Weak Nonce)")
import hashlib
from ecdsa import SigningKey, SECP256k1
from ecdsa.util import sigdecode_string, sigencode_string
weak_private_key_int = random.getrandbits(160)
weak_private_key = SigningKey.from_secret_exponent(weak_private_key_int, curve=SECP256k1)
public_key = weak_private_key.verifying_key
print("Weak Private Key (Hex):", hex(weak_private_key_int))
print("Public Key (Hex):", public_key.to_string("compressed").hex())
message1 = b"BlackHatCoiner"
message2 = b"Break this message"
z1 = int.from_bytes(hashlib.sha256(message1).digest(), "big")
z2 = int.from_bytes(hashlib.sha256(message2).digest(), "big")
weak_k1 = random.getrandbits(160)
weak_k2 = random.getrandbits(160)
signature1 = weak_private_key.sign_digest_deterministic(
hashlib.sha256(message1).digest(),
sigencode=sigencode_string,
extra_entropy=weak_k1.to_bytes(32, 'big') # Inject weak k
)
signature2 = weak_private_key.sign_digest_deterministic(
hashlib.sha256(message2).digest(),
sigencode=sigencode_string,
extra_entropy=weak_k2.to_bytes(32, 'big') # Inject weak k
)
r1, s1 = sigdecode_string(signature1, weak_private_key.curve.order)
r2, s2 = sigdecode_string(signature2, weak_private_key.curve.order)
print("\nSignature 1:")
print(f"R1 = {hex(r1)}")
print(f"S1 = {hex(s1)}")
print(f"Z1 = {hex(z1)}")
print(f"k1 = {hex(weak_k1)} (Weak Nonce)")
print("\nSignature 2:")
print(f"R2 = {hex(r2)}")
print(f"S2 = {hex(s2)}")
print(f"Z2 = {hex(z2)}")
print(f"k2 = {hex(weak_k2)} (Weak Nonce)")
Re: I found a method to reverse public keys to private keys
So (who would believe 
it didn't work. can you please provide more signatures? like upto 10? I have a script to generate them if you want.
I can provide a million of them, but I feel like I'll be wasting my time. it didn't work. can you please provide more signatures? like upto 10? I have a script to generate them if you want.Re: I found a method to reverse public keys to private keys
Here you go:
Private key, and nonces (k1 and k2) are less than 200 bits. Break it.
Code:
Public Key (Hex): 031f7b4d773de256a16526c6d2226d617e141250272b9f4521acc6db97d0e95cce
Signature 1:
R1 = 0x3076de63523a586e3f0050c1d0960977f1eaf26803d5dfbd139eec1df30480f2
S1 = 0x99a06d579865d4e5f608945a668dad03aa64baf1520b21efc2f90971c207f383
Z1 = 0x8055c4701f995b0c59c86e5c8a93706a7ea424035feec9a8641e8e5a763e7a20
Signature 2:
R2 = 0x669809d5a8007d6f82b4b97188101a9b81f4b6d52b1816dcb508f1c1627cdbeb
S2 = 0x419138af2715f77c0566c491f17405507dd63e7fb6076f2d7d1d87092f3ef25
Z2 = 0xa19d1f3d31d8896ac2626b0f466d0e416ceea61f0f5d935517ab416e08fc9806
Signature 1:
R1 = 0x3076de63523a586e3f0050c1d0960977f1eaf26803d5dfbd139eec1df30480f2
S1 = 0x99a06d579865d4e5f608945a668dad03aa64baf1520b21efc2f90971c207f383
Z1 = 0x8055c4701f995b0c59c86e5c8a93706a7ea424035feec9a8641e8e5a763e7a20
Signature 2:
R2 = 0x669809d5a8007d6f82b4b97188101a9b81f4b6d52b1816dcb508f1c1627cdbeb
S2 = 0x419138af2715f77c0566c491f17405507dd63e7fb6076f2d7d1d87092f3ef25
Z2 = 0xa19d1f3d31d8896ac2626b0f466d0e416ceea61f0f5d935517ab416e08fc9806
Private key, and nonces (k1 and k2) are less than 200 bits. Break it.
Re: Do not mine only for profit, but to prevent that the network gets hacked
What exactly happens in a 51% attack?
An attacker is able to reverse any transaction, given enough time, or deem the network non-operational by mining empty blocks, if he owns the majority of the hashrate that is used for mining, hence "51% attack".Read more in here: https://learnmeabitcoin.com/technical/blockchain/51-attack/.
You cannot export a single private key from descriptor wallets. You can export sufficient information by running listdescriptors true. It will tell you what your master private key is, what your derivation path is etc.
Here's an explanation from the expert:
Here's an explanation from the expert:
Descriptor wallets do not allow dumpprivkey because the fundamental principle behind descriptor wallets is that private keys are not enough information to transport a wallet. Private keys lack derivation information and lack information about what kind of scripts to create. They also do not work for wallets that have anything more complicated than just single key scripts. Thus allowing a RPC that only outputs private keys would be working against the point of having descriptors.
Instead of dumpprivkey, descriptor wallets have listdescriptors. This will output all of the descriptors stored in the wallet, which means that it will include information about derivation paths and scripts to create. Descriptors are a full backup of the key and script information stored in the wallet. With 23.0, listdescriptors will also be able to optionally output descriptors containing private keys.
Instead of dumpprivkey, descriptor wallets have listdescriptors. This will output all of the descriptors stored in the wallet, which means that it will include information about derivation paths and scripts to create. Descriptors are a full backup of the key and script information stored in the wallet. With 23.0, listdescriptors will also be able to optionally output descriptors containing private keys.
Would it be right to say that the transaction fees would also drop which could result in more movement of coins?
Transaction fees will not drop. The contrary: the competition will be much higher than today, and that's why it is considered enough of a reward. If demand for transaction confirmation is high, while supply remains the same (4 MB block size), then the price for block space skyrockets.Re: DeepSeek showed why US regime cannot win an economic war on China!
I don't understand quite a few things:
- Why can't American AI companies get advantage of the DeepSeek's work, since it is open-source, and use their billions worth of resources to achieve a model that is bigger than DeepSeek?
- What evidence do we have that the cost to train DeepSeek was actually $6 million?
Re: The biggest differences between Bitcoin and altcoins?
The one biggest difference between bitcoin and altcoins is that you can recreate altcoins, but you cannot recreate digital scarcity. It can only be invented once. Nobody would rather have a replica of sound money, apart from speculation, with the hope that they can have more of that sound money in the future.
You can have an abundance of altcoins, but you can only have 21 million bitcoins.
You can have an abundance of altcoins, but you can only have 21 million bitcoins.
Bitcoin was molded by an economic collapse. It sure will leave a scar, just as with every major asset, but it will be a matter of time until the economy recovers and people begin saving in bitcoin again. When there's blood in the streets, you better stack some cheap sats.
Re: Exploring Tensor-Based Proof-of-Work: Aligning Mining with AI/ML Workloads
If what you're looking to accomplish is create an incentive for developing a better chip for AI, then that is already existent. As we speak, the big tech companies like Nvidia have employed top engineers for improving the this particular kind of efficiency. The incentive does not have to come from a mining process like bitcoin mining.
And after 2140 there will be no reward to maintain the network then why would anyone bother doing it?
Long before 2140, miners' income will be mainly determined by transaction fees. If there are no transactions, their income will drastically decline, which will reduce difficulty. The bet is that transaction volume will be large enough to compensate them enough to keep their machines running. One thing is certain: In the transaction-fee era, a block reward will be orders of magnitude more volatile than it is today. Re: Everything you wanted to know about Bitcoin Strategic Reserve.
Hopeful but not confident they will announce an SBR.
Actually, I'm now more confident that they will create such a reserve, than ever. The justification for my confidence is that they're clearly trying to push other crypto along with bitcoin, which is kinda insipid, but I wouldn't expect politicians to create a strategic reserve with only bitcoin, and governments across the world had a shitcoin reserve already (USD reserves), so it won't be that different.