All Questions
Tagged with cryptocurrency passwords
9 questions
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best encryption algorithm for encrypting a string
I am making a password manager , I am new to cryptography, so , can someone tell me if this can be a good solution?
1- the user inputs the email/password
2- all the payload gets encrypted with aes@...
2
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1
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839
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Which passphrase length is good so it's hard to break bitcoin's PBKDF2 key?
According to https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki#From_mnemonic_to_seed
To create a binary seed from the mnemonic, we use the PBKDF2 function
with a mnemonic sentence (in ...
1
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1
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BIP 39: If I mix my 24 seed phrase with another 24 words, will the checksum property allow an attacker to retrieve the original seed phrase?
Assume that I have a 24-word passphrase that I want to store securely but online by mixing it with another 24 words in a manner only I know. Does the checksum property somehow help an attacker to ...
- 13
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Recovery Passphrase Collission for BIP-39 and BIP-44
Referring to the standards of [BIP-39] and [BIP-44]: a 'master password' consisting of 12 words uniformly selected from a 2048-word dictionary corresponds to 128 bits of entropy, that is then used as ...
- 357
1
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2
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344
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Zencash uses your passphrase to identify AND unlock a wallet - how is this secure?
When looking into Zencash I stumbled into myzenwallet.io (by the Zencash creators), which gives you the option to enter a passphrase to generate a wallet (seems normal), but then after creating your ...
- 113
2
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1
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1k
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How difficult is it to crack sha256(sha256(pin)) with a 6 digit pin and no salt?
My friend forgot the password to his electrum wallet but knows that it's a 6 digit pin. I looked into it and from what I can find electrum uses the sha256(sha256(pin)) to generate the key used to ...
- 41
3
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1
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500
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Trying to calculate the strength of a Bitcoin brain wallet created with a custom diceware password
I want to create a brain wallet using a custom diceware since I don't like the original one. Instead of 7776 words it has 46656 because I use 6 dice for each word instead of 5, and also it only has ...
- 201
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2
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Where can I learn basic cryptography to know more about passwords and Bitcoin?
Basically my knowledge in passwords consist of setting up a Diceware master password back then, and I know hashes are not convertible back to the original password.
Some basic question I want to know ...
- 139
3
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2k
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Ideal passphrase length: old diceware method (5 words) vs. your Bitcoin wallet.dat passphrase lenght (8 words) and doubling passwords?
I made a cool 5 word passphrase back then using the old Diceware method and use it as a master password. The question is as computing power increases will we need to add more and more words to our ...
- 139