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Topic: brain wallets - good or bad (Read 3774 times)

newbie
Activity: 56
Merit: 0
December 04, 2017, 11:22:19 PM
#63
yes it is do good, the brain wallet is so better than than other wallet it is so seccure
full member
Activity: 168
Merit: 100
Decentralized Escrow currency for Crypto world
December 04, 2017, 10:35:08 PM
#62
ive been reading a fair amount  about brain wallets. they fascinate me

I really don't think these will work always, we can't say the capacity of the memory, creating your own  mnemonic recovery phrase is very risky.
It really depends on the peaon having the wallet, there is a percentage that it will be forgotten and its danger is given-that cannot be, should be 100% safe.
member
Activity: 62
Merit: 10
December 04, 2017, 06:26:32 PM
#61
ive been reading a fair amount  about brain wallets. they fascinate me

ive heard some pros and some cons. the main reason against them seems to be that

1- people use very common phrases (lyrics to songs etc)
2- people have poor memory

but if one were to use an uncommon phrase (say a foreign language idomatic expression) and they securely stored the phrase, would the brain wallet fail

additionally ive seen some brain wallets add an extra password to help the seed

given the above assumptions, at a technical level, is there reason to believe brain wallets are not to be used other than what popular opinions feel?

Nah, brainwallets are easly lost, I'don't commend them at all.
newbie
Activity: 5
Merit: 0
December 04, 2017, 06:25:54 PM
#60
Definitely bad in my opinion. At least, this shouldn't be the only way you store your words. Seems riskier to me than just leaving on an exchange if you're going to do this.
member
Activity: 182
Merit: 10
December 04, 2017, 10:45:56 AM
#59
ive been reading a fair amount  about brain wallets. they fascinate me

ive heard some pros and some cons. the main reason against them seems to be that

1- people use very common phrases (lyrics to songs etc)
2- people have poor memory

but if one were to use an uncommon phrase (say a foreign language idomatic expression) and they securely stored the phrase, would the brain wallet fail

additionally ive seen some brain wallets add an extra password to help the seed

given the above assumptions, at a technical level, is there reason to believe brain wallets are not to be used other than what popular opinions feel?

Hey friend

Every wallet has its pros and cons, were adding you a link to few top recommended wallets. Good luck !
https://www.huffingtonpost.com/entry/10-bitcoin-wallet-apps-you-should-consider-using-today_us_5999ed74e4b033e0fbdec566
member
Activity: 392
Merit: 24
December 04, 2017, 08:37:45 AM
#58
For brain wallets a hard social engineering work can be the key.
Phrases in your brain can be consist of your history and your future.
If you have something which doesn't known by a second one that means "the secret of you" you can use it as a phrase, but then this would mean you uncovered "your secret" and now it means it is not a secret.
If it is not a secret that means it can be found.
So randomization can be more safer then brain wallets.. 
newbie
Activity: 3
Merit: 0
December 04, 2017, 02:38:27 AM
#57
Brain Wallets have a significant disadvantage that means they have a higher probability of being hacked...
newbie
Activity: 18
Merit: 0
December 03, 2017, 11:29:22 PM
#56
If used with high-entropic-generated passwords, Brain wallets can be extremely effective. Otherwise they can be quite dangerous
hero member
Activity: 756
Merit: 502
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December 03, 2017, 03:28:01 PM
#55
brain wallet is the most secure of all only if u don loose your mind

I can understand why beginners think this is true, because they only think of Bitcoin wallet hacks as "computer intrusions." The problem is that your mind is not capable of being truly random when you are generating the brain wallet.

Brain wallets usually end up being very low entropy because of the way the human mind works. In turn, you are always at a much higher risk of a dictionary attack or similar kind of brute forcing to decrypt your private key.

Also a few large databases of passwords have been leaked meaning so it is quite easy to hash all these passwords and then see if their corresponding address exists as an active address on the blockchain – if so you have the private key and therefore access to the funds.

That's interesting. It never occurred to me that the massive bitcointalk leaks, for instance, might be valuable as brain wallet decrypters. I wonder how many people generate a brain wallet based on compromised passwords/passphrases, only to have them immediately wiped when they fund them.....
full member
Activity: 182
Merit: 100
December 03, 2017, 03:17:23 PM
#54
Brain Wallets have a significant disadvantage that means they have a higher probability of being hacked. That is that us humans are pretty predictable in what we use as a passphrase and password, and hacking technology has got a lot better through the use of rainbow tables and dictionary attacks. Also a few large databases of passwords have been leaked meaning so it is quite easy to hash all these passwords and then see if their corresponding address exists as an active address on the blockchain – if so you have the private key and therefore access to the funds.
sr. member
Activity: 658
Merit: 282
December 03, 2017, 02:38:15 PM
#53
...I myself memorized my 12 word seed that was generated by Electrum and I've never forgotten it since I started doing it, although I've messed up the order of 2 words when I wasn't doing this exercise for a few days. While this method should never be your main backup for your seed, it's a great additional backup - if your house will burn and your hardware wallet, piece of paper with seed, paper wallet and PC will get destroyed, the seed in your memory might save your coins. There's also additional benefits to memorizing your seed, like the ability to cross borders without risking carrying your wallet/backup with you.

I´m envious of your good memory!

However, I think even if you are able to memorize the mnemonic seed you should still keep an additional backup somewhere.
You have no guarantee that your memory will work as good as it does now when you are older. This is not even taking into account
the onset of an illness that would compromise your ability to successfully retrieve the mnemonic seed (e.g. Alzheimer or dementia).

I concede that the use of a brain wallet is great for carrying a huge amount of BTC across a border. This should be doable within a few hours
and therefore the potential pitfalls of a brain wallet like the onset of an illness or an accident and so on don´t really apply.


newbie
Activity: 26
Merit: 0
December 03, 2017, 06:38:03 AM
#52
brain wallet is the most secure of all only if u don loose your mind
legendary
Activity: 3024
Merit: 2148
December 03, 2017, 06:06:27 AM
#51
ive been reading a fair amount  about brain wallets. they fascinate me

ive heard some pros and some cons. the main reason against them seems to be that

1- people use very common phrases (lyrics to songs etc)
2- people have poor memory

but if one were to use an uncommon phrase (say a foreign language idomatic expression) and they securely stored the phrase, would the brain wallet fail

additionally ive seen some brain wallets add an extra password to help the seed

given the above assumptions, at a technical level, is there reason to believe brain wallets are not to be used other than what popular opinions feel?

It's a well-known fact that humans are usually a bad source of randomness, but our memory is actually not as bad as it might seem. Yes, we almost always forget passwords that we've created a few months ago and typed only once, but if you are repeating some words every day, you won't forget them unless you will forget about repeating them for some period of time. I myself memorized my 12 word seed that was generated by Electrum and I've never forgotten it since I started doing it, although I've messed up the order of 2 words when I wasn't doing this exercise for a few days. While this method should never be your main backup for your seed, it's a great additional backup - if your house will burn and your hardware wallet, piece of paper with seed, paper wallet and PC will get destroyed, the seed in your memory might save your coins. There's also additional benefits to memorizing your seed, like the ability to cross borders without risking carrying your wallet/backup with you.
jr. member
Activity: 42
Merit: 2
December 02, 2017, 08:29:33 PM
#50
ive been reading a fair amount  about brain wallets. they fascinate me

ive heard some pros and some cons. the main reason against them seems to be that

1- people use very common phrases (lyrics to songs etc)
2- people have poor memory

but if one were to use an uncommon phrase (say a foreign language idomatic expression) and they securely stored the phrase, would the brain wallet fail

additionally ive seen some brain wallets add an extra password to help the seed

given the above assumptions, at a technical level, is there reason to believe brain wallets are not to be used other than what popular opinions feel?

A Brain Wallet is the one when user remembers their mnemonic phrase or the private key and never writes it down. That is, all is stored in the brain only for security reasons.

So why have a brain wallet and still write you private key or mnemonic phrase down on a piece of paper?

To me brain wallet is not good because it is difficult to manage in case the user forgets his/her mnemonic paraphrase or private key due to any mishap such as  accidents, brain diseases/ damage or even mental stress, he /she will lose his/her crypto-coins and funds.
member
Activity: 658
Merit: 10
November 30, 2017, 10:51:37 PM
#49
Hello.. Nowadays what is the secure wallet for digital currency?
full member
Activity: 224
Merit: 100
I will do wonder for YOU!!!
November 30, 2017, 07:44:05 PM
#48
I guess this is very dangerous if you are not really good at memorizing.  I have read some article regarding this brainwallet that if you forgot it, your bitcoins will be lost forever.  I don't think this is a good idea after all. Only if you have good memory techniques for you to easily recall you bitcoin address or so.
newbie
Activity: 31
Merit: 0
November 29, 2017, 07:59:27 PM
#47
Brain wallets are not as reliable as TREZOR!

I have three Trezor wallets and have spread my cryptos across all the three.
sr. member
Activity: 420
Merit: 250
November 29, 2017, 05:55:21 PM
#46
This is awful idea to say at least. The very nature of such passwords would make them guessable by potential attacker if only he/she would invest sufficient amount of time and energy to investigate owner's life and preferences. And you can always forget a part especially if you're not using it for a long time.
newbie
Activity: 97
Merit: 0
November 28, 2017, 02:55:06 PM
#45
IMHO - not a very good idea.. Smiley
member
Activity: 130
Merit: 10
November 27, 2017, 05:05:46 PM
#44
If you wanna get crazy you could just use a Diceware passphrase. Look it up. one in 1,719,070,799,748,422,591,028,658,176 chance

Or just use a 12 word phrase of random people, places, things, slang and make up your own saying that slips off your tongue easy. Say it over and over again to yourself when nobody else is around.

And don't piss someone off with a quantum computer.  Wink
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