Search content
Sort by
Showing 20 of 38 results by testingelcrypto
My last question on this topic.
When using iancoleman if i give it this dice 6 result : 1236212615165132315133131313123121561312313215615315313212132123132123123135653 21123132151311231231
And then choose 12 words i get this seed :
over spot rate two junior rice maze people animal swap model wet
Meanwhile i also see the raw binary is : 01101100100 11000011010 01011110110 11011111011 10111011101 10110110011 00011101101 10111100110 00111101111 01111001100 11110011011 01111001101 10110110111 10011110010 11011011110 01101110101 10110110110 1
And if i try to find by myself just the first seed word from the raw binary (01101100100 )from the word list i found that the word is hold and not over.
What am i doing wrong ? Maybe the list word that i am seeing is wrong ? maybe the raw binary is not the seed?
When using iancoleman if i give it this dice 6 result : 1236212615165132315133131313123121561312313215615315313212132123132123123135653 21123132151311231231
And then choose 12 words i get this seed :
over spot rate two junior rice maze people animal swap model wet
Meanwhile i also see the raw binary is : 01101100100 11000011010 01011110110 11011111011 10111011101 10110110011 00011101101 10111100110 00111101111 01111001100 11110011011 01111001101 10110110111 10011110010 11011011110 01101110101 10110110110 1
And if i try to find by myself just the first seed word from the raw binary (01101100100 )from the word list i found that the word is hold and not over.
What am i doing wrong ? Maybe the list word that i am seeing is wrong ? maybe the raw binary is not the seed?
yes thats correct now i understand.
but for exemple, ian coleman says thats 1.67 bit per event meanwhile the other site says its 2.58. so can i assume its an error?
but for exemple, ian coleman says thats 1.67 bit per event meanwhile the other site says its 2.58. so can i assume its an error?
when i said that gave me same results i am talking about the option 3 that you gave me. its the same on both. both have 4 numbers that generate 2 bits and 2 numbers that generate 1 bit
Hi
I am testing a 6 dice to generate a 12 word seed. I was testing both sites, the iancoleman and bitcoin.guider and i found out that both give diferent seed phrases for the same input when i choose dice 6. I want to know whats wrong here. Can someone help me ?
I am testing a 6 dice to generate a 12 word seed. I was testing both sites, the iancoleman and bitcoin.guider and i found out that both give diferent seed phrases for the same input when i choose dice 6. I want to know whats wrong here. Can someone help me ?
Which statistical tests are you going to use? What degree of bias are you trying to exclude? What p value are you happy with? How many rolls does that require?
I will runt it 500 times ( 50 per day since i am not in a worry) and see if theres a bias.I accept a bias of 30% for one side since it still has good entropy if i go for 24 word seed. Even though i know it cant have that bias since they are casino dice
this method is from iancoleman website. Do you think its not good enough since he is the creator of the bip39? why do you think the coin flip method is better?
Which statistical tests are you going to use? What degree of bias are you trying to exclude? What p value are you happy with? How many rolls does that require?
I will runt it 500 times and see if theres a bias.I accept a bias of 30% for one side since it still has good entropy if i go for 24 word seed.
Is this really necessary ?
I'll refer you to an answer I gave in another thread on this topic:Maybe. Maybe not. The numbers given so far in this thread discuss the Shannon entropy, but have you calculated the min-entropy you would achieve from doing this? What randomness extractor algorithm are you planning to use to turn those dice rolls in to usable entropy? How are you converting those dice rolls to binary without introducing modulo bias? It's not as simple as just "roll the dice more" - it's a very complex topic which most people do not fully understand (and I do not profess to either), which is why whenever the topic of manually generating entropy comes up, I always suggest von Neumann's coin flips to simply, quickly, and most importantly verifiably generate 128 or 256 bits of provably unbiased entropy.
If the answer to generating true random numbers was as simple as "Take any old non-random and biased process and just repeat it a bunch of times", there would not be an entire field of research dedicated to it.
We have methods were are provable and verifiable. Why risk everything by coming up with your own ad hoc scheme?
I would use casino grade dices and test it for its bias before using it. To convert it to binary without bias i would use this model : number1 : 1 number2: 0 number3: 00 number4: 01 number5: 10 number6: 11.
I would then use https://iancoleman.io/bip39/ on an old offline pc to get to 24 words and then burn the pc.
Do you think this is a a valid methode?
According to this site : https://iancoleman.io/bip39/ rolling a dice only gets 1.67bits is this correct?
Another simple way is to count bits according to this array:
Code:
1: 00
2: 01
3: 10
4: 11
5: 0
6: 1
2: 01
3: 10
4: 11
5: 0
6: 1
I like this. Do you like the ideia of adding a coin flip when i am at 10 numbers in order to the the number 11 or this is bad for entropy?
As I have showed in here, a dice that produces near 1 bit of entropy is understandably insecure from the human eye. You can check out how frequent '1's I have got with 75% frequency, it makes a splash. And that's 1.29, with 1 bit it's even more clear that you shouldn't use that dice.
a perfect dice doesnt show 1 bit. what i mean is :
a word in the bitcoin seed is something like this : 00011111101
By using a dice i assume people have to say: if dice comes 1 to 3 i will choose number 0 if dice come to 4 to 6 choose number 1
So this is always a 50% 50% making that dice like a coinflip. Am i thinking right?
is the entropy for a die relly over 1 bit? if the seed its all zeros and one even if the die has 6 faces its always 50% 50% because we will have to do something like from 1 to 3 choose ZERO from 4 to 6 choose ONE.
Depends how certain you want to be that your coin is fair. You can never be 100% sure your coin is fair, but you can asymptotically approach 100% with increasing confidence of ruling out ever smaller biases. For example, to exclude a 55/45 bias with 99% confidence, you would need to flip the coin 664 times. However, to exclude a 51/49 bias with 99% confidence, you would need to flip the coin 16,589 times.
A more practical approach would be to simply use the von Neumann approach I alluded to above. Take any coin and flip it in twice. If the first flip is heads and the second flip is tails, write down 0. If the first flip is tails and the second flip is heads, write down 1. If the two flips are both heads or both tails, don't write down anything. Repeat until you have 128 zeros or ones written down. This method completely eliminates any bias in the coin and produces a uniformly distributed output. It will require a lot less flips than any method to test whether or not your coin is actually fair.
Is this really necessary ? A coin that flips 0.75 heads and 0.25 tails still has 0.81 entropy. just flip it 156 times to be sure you have a good seed phrase. And if you are paranoid go for 200 flips and you are good to go. You only get cracked if the coin is really a bad coin where it goes tails only less than 15% of the time.
Do you agree?
after reading more about the subject i come to the conclusion that dice rolling is better even if i dont use fair dice.
i used this calculator https://planetcalc.com/2476/ and i found that a die that comes 50% number 1 and the rest of numbers just 10% if i roll it 100 times i still get 216 bits of entrupy.
Am i thinking correct?
i used this calculator https://planetcalc.com/2476/ and i found that a die that comes 50% number 1 and the rest of numbers just 10% if i roll it 100 times i still get 216 bits of entrupy.
Am i thinking correct?
i couldnt read all the answers and from what i read i cant still say if rolling dices is safe.
Seedsigner has that feature do you think someone who uses that for a 24 word seed with 5 dices and 1 coin like this protocol says : https://bitbox.swiss/blog/roll-the-dice-generate-your-own-seed/ gets a seed impossible to crack?
Seedsigner has that feature do you think someone who uses that for a 24 word seed with 5 dices and 1 coin like this protocol says : https://bitbox.swiss/blog/roll-the-dice-generate-your-own-seed/ gets a seed impossible to crack?
