All Questions
Tagged with cryptocurrency randomness
6 questions
-3
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0
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I was scammed in crypto [closed]
I was approached by individuals offering an investment opportunity in cryptocurrency. After some back and forth, I was persuaded to send funds (Ethereum in this case) to a wallet address they provided....
- 1
1
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1
answer
81
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Can the last n bitcoin blocks (including transactions) be reliable enough to be used as a seed for a PRNG or an input to a crypto hash-function?
Suggested by u/HolgerBier on reddit
Is it unpredictable enough or too difficult to manipulate (as in more than a few hundred million USD) to have a sequence of blocks?
- 23.7k
3
votes
1
answer
187
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DIY TRNG on an embedded system for Ethereum private key generation
I'm trying to build this Ethereum hardware wallet on a custom designed embedded system and I'm no expert. Googling around I found this Robust, low-cost, auditable random number generation
for embedded ...
- 232
1
vote
1
answer
300
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How to generate a random string in Python for a mission-critical application
I'm trying to figure something out, but it is difficult for me. I need to generate a fully random string in Python. My current function is attached below. I just want to know whether this is secure ...
- 14.6k
2
votes
2
answers
238
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Doesn't d6 to binary for 256-bit bitcoin private key generation produce biased results?
If the mapping table looks like:
1: 000
2: 001
3: 010
4: 011
5: 100
6: 101
Then you are guaranteed that your key will never have a chain of 4 or more 1s, much fewer chains of 3 ones than would ...
- 46.5k
0
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2
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2k
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Probability last character sha256 hash
A quick question. I want to use the last character of a SHA256 hash (blockhash of a bitcoin block) as my random source. Is 100 /16(amount of different chars) = 6.25% true for all characters or are ...
- 94.5k