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1  Bitcoin / Bitcoin Discussion / Re: Our bitcoin private key will be in danger, sometime in the future on: May 06, 2019, 03:10:27 PM
I am not very proficient in encryption.

However, I think: the length of the password should be a password. The length of the

encrypted private key should also be a secret. If the user can set a 257-bit private key

or a 358-bit private key. It will be safer.


Sorry, but if you don't know anything about cryptography, you shouldn't be allowed to have any strong opinions on what's safe and what's not. This not to insult you, but to protect you from yourself - it's quite common for people to start rolling their own crypto because they don't understand crypto in the first place, and they think that their solutions are safer than industry standards. You should really read a few books about cryptography and read some quality discussions on the Internet (crypto stackexchange and /r/crypto are great places, for starters).

Maybe I am wrong. Thank you for your answer
2  Bitcoin / Bitcoin Discussion / Re: Our bitcoin private key will be in danger, sometime in the future on: May 06, 2019, 12:15:40 PM
i think the private key of Bitcoin should not be a fixed 256 bit. it should be able to change in an interval. the user can select the number of digits of its private key. For example: between 500 characters and 256 characters.

Why is it a public number: 256 bits?
The character of the private key is a privacy. The number of digits in the private key should also be a privacy.

First, you should know that cryptography is a very-very serious field, many computer scientists and mathematicians have devoted their lives to study it. There are huge incentives to break cryptography, so if someone will indeed find a flaw, it won't be an amateur like you. You should relax about the fundamentals and instead spend your time how to secure other things.

And to answer your questions, zero bits are still bits. According to Bitcoin wiki, keys starting from 0x01 are valid, so they don't have to literally be 256 non-zero bits. And your proposal of "varying key length" would do absolutely nothing, because for all purposes keys would just be padded with zeroes to maximum key length.

Many people don't fully understand my post. Maybe my expression is not clear enough. You

read my post. I am not very proficient in encryption.

However, I think: the length of the password should be a password. The length of the

encrypted private key should also be a secret. If the user can set a 257-bit private key

or a 358-bit private key. It will be safer.

If : Quantity of Bitcoin accounts = X  , 256 numbers and letters all possible combinations = Y  .

X is always growing, and Y is constant. When X approaches Y, our private key will be in

danger. People enter any combination of 256 numbers and letters, which may be a private

key.
3  Bitcoin / Bitcoin Discussion / Re: Bitcoin private key vulnerability on: May 04, 2019, 08:31:03 AM
we make a hypothesis based on some time in the future. The Bitcoin account is one trillion. Assumption: 256 numbers or combinations of letters are 2 trillion (it can be calculated by mathematical formulas, here we make a hypothesis) Then: any modification of the letters in the private key, it will be the private key of an account .

It also applies to altcoins. But the number of Bitcoin accounts is the largest. It needs to make changes first.
4  Bitcoin / Bitcoin Discussion / Re: Bitcoin private key vulnerability on: May 04, 2019, 08:00:52 AM
People can guess private keys? Seriously? No one is capable of doing that genius. Many have tried to crack these keys in different ways(Brute force etc), but failed which is why a large portion of BTC is lost basically.

Supercomputers could possibly crack them in the future, but it would still be really difficult.

If you are guessing, there's nothing genius in it.

Agree on this, I think even a genius person could not even crack even one of million private keys exixting. Using a super computer to crack private key combination might not be possible, or could be possibe but might take ages.

Cracking a particular account private key can be very difficult. However, as Bitcoin accounts continue to grow at a large scale. At some point in the future, any combination of 256 numbers and letters may be a private key. People can guess the private key of an account.
5  Bitcoin / Bitcoin Discussion / Re: Bitcoin private key vulnerability on: May 04, 2019, 07:52:24 AM
People can guess private keys? Seriously? No one is capable of doing that genius. Many have tried to crack these keys in different ways(Brute force etc), but failed which is why a large portion of BTC is lost basically.

Supercomputers could possibly crack them in the future, but it would still be really difficult.
Of course, it is not now. It is a potential problem. When the number of Bitcoin accounts is large enough. It will be easier and easier.
6  Bitcoin / Bitcoin Discussion / Our bitcoin private key will be in danger, sometime in the future on: May 04, 2019, 07:05:08 AM
We all know that Bitcoin's private key consists of 256 numbers or letters. However, with the adoption of bitcoin on a large scale. BTC accounts will be more and more. When the number of Bitcoin accounts is large enough, any 256 numbers and combinations of letters may be a private key. People can rely on guesswork to get bitcoin in their account.

i think the private key of Bitcoin should not be a fixed 256 bit. it should be able to change in an interval. the user can select the number of digits of its private key. For example: between 500 characters and 256 characters.

Why is it a public number: 256 bits?
The character of the private key is a privacy. The number of digits in the private key should also be a privacy.
7  Alternate cryptocurrencies / Speculation (Altcoins) / Re: do we still have hope to be able to see bull run?? on: March 24, 2019, 11:15:12 AM
the encryption market is hard to predict. it is the biggest bull market in December 2017. some big events have created such a big bull market. within a few years, the market will have a hard time returning to its level.
8  Alternate cryptocurrencies / Altcoin Discussion / Re: Is product important for a project? on: March 24, 2019, 10:47:40 AM
the product is the basis of this project. If it is not a quality product. the project team relies solely on hype, and the project will only rise in the short term, and it will not survive for a long time. all, good products are the beginning of all projects.
9  Alternate cryptocurrencies / Speculation (Altcoins) / Re: Is it better to buy during ICO or Market? on: March 24, 2019, 10:41:28 AM
I don't think so. i studied most of the bounty items. the amount of bounty tokens is one percent of the total amount of coins. even all bounty hunters sold all the coins. its impact on the market is very limited.
10  Alternate cryptocurrencies / Speculation (Altcoins) / Re: Is it the best time to invest on ETH on: March 24, 2019, 09:59:02 AM
No, it is lower now. when the market is in a bear market, there is no optimal investment opportunity. u never know what the bottom of it is. any time is a good time, when the market is on the rise.
11  Alternate cryptocurrencies / Altcoin Discussion / Re: Is it worth buying low-volume tokens? on: March 24, 2019, 09:47:41 AM
in my opinion: the value of a coin is not necessarily related to its quantity. the total amount of IOTA is very large. If u invest in it early, it will also bring u a good return. i only care about the true value of this project.
12  Alternate cryptocurrencies / Altcoin Discussion / Re: Sending in fake ID for KYC on: March 24, 2019, 09:42:58 AM
i have sent a passport. i regret it. i got some negligible rewards and passed KYC. it is very unworthy. i won't be stupid again.
13  Alternate cryptocurrencies / Speculation (Altcoins) / Re: are you afraid of the current market situation. on: March 22, 2019, 12:14:41 PM
i am very disappointed with the current market. i am afraid that it will continue forever. there is no gold support for cryptocurrencies. if the bear market continues, the entire market will collapse. this is what all people are not willing to see.
14  Alternate cryptocurrencies / Speculation (Altcoins) / Re: Do you always invest in top ranked coins? on: March 22, 2019, 12:04:38 PM
when the market is in a bear market. top coins are the most reliable investment. but when the bull market returns, the benefits of top coins are few, compared to some new listings.
15  Alternate cryptocurrencies / Speculation (Altcoins) / Re: ethereum will rise again. on: March 22, 2019, 12:02:09 PM
the performance of ether has been awful, recently. the hard fork of ether was not very successful. it has caused a lasting split in the community. the market for ether is gradually being lost.
16  Alternate cryptocurrencies / Altcoin Discussion / Re: How do you feel now? on: March 22, 2019, 11:58:58 AM
It sucks. All people are desperate. It made me feel a huge risk. High risk is accompanied by high returns. what else can we do besides waiting? I will stick to the bull market.
17  Alternate cryptocurrencies / Altcoin Discussion / Re: Do you see a future with one cryptocurrency or thousands? on: March 22, 2019, 11:54:59 AM
immigration encryption, repair encryption, express encryption, shopping encryption. they are so much more. some of them are rubbish. we need to find some gems in them. we need good judgment and luck.
18  Local / 中文 (Chinese) / Re: 比特大陆的持仓让你想到了什么 on: March 20, 2019, 12:06:27 PM
现在对比特大陆没有好感。去年他们搞的哈希战争,把我们搞惨啦。比特币从六千跌倒三千。BCH我全抛了,不想再碰了。说不定过几年又搞个什么战,跌个百份之五十呢。管他持什么仓
19  Local / 中文 (Chinese) / Re: 除了加密币外的所有区块链项目必定死亡。 on: March 20, 2019, 12:01:07 PM
区块链就是加密的载体呀,它是因加密而生。把加密割掉,区块链是不完整的。区块链没有加密货币就失去了很多意义。前段时间,国内搞了很多没币区块,现在情况都不咋地。
20  Alternate cryptocurrencies / Speculation (Altcoins) / Re: Should buy and hold NEO? on: March 17, 2019, 12:05:16 PM
NEO has an excellent project. but its performance is not very good, recently. i bought some NEO last March. now it has become breadcrumbs. i hope time can save it.
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