Questions tagged [seed]
The seed tag has no usage guidance.
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How do bad actors manipulate game results in real time within 'provably fair' gaming systems?
Ive been assigned research involving online gaming companies and their use of cryptographic algorithms to produce 'provably fair' results. The largest player in the industry uses a method involving a ...
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What is the probability of accidentally getting a seed phrase that is associated with a real address with a balance in the bitcoin blockchain? [migrated]
Good afternoon! Such a question is interesting, and with what probability can you accidentally get a seed phrase that is associated with a real address with a balance in the bitcoin blockchain?
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Is it safe to derive a Falcon512 key pair from a XOF output?
I'm working on a program that requires multiple key pairs from multiple algorithms to be derived from a single 128-byte master seed. However, I couldn't find an implementation for Falcon512 that ...
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RSA with p and q being generated by pow expression of weak random seed
n, e and modulus of RSA are given and n is very large. p and q are primes generated by pow(7, random_seed, modulus), and the seed that p and q used is very close. ...
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If encrypting with a hash function in counter mode, will the security of this scheme be at most minimal{input,output}?
It's possible to use a hash function as an encipherment scheme if used in counter mode.
Let's suppose I take a 64-bytes (512-bits) seed/key and hash it concatenated with counters, and use it as a ...
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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?
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What are some ways to produce a pre-determined sequence of a large number of dice rolls? [closed]
What are some ways to produce a pre-determined sequence of a large number of dice rolls (on the order of 100-1000 times) using biased dice or a biased human roller given the constraints that multiple ...
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Hashing a seed full of entropy with a cryptographic hash function and emiting a key with the same size as input: can a collision attack occurs?
I read this in the documentation of HighwayHash:
By contrast, 'strong' hashes such as SipHash or HighwayHash require
infeasible attacker effort to find a hash collision (an expected 2^32
guesses of m ...
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Once a secure hash function built up a (fast) internal hash table, can data to be hashed be different from the data inserted when doing the lookups?
One experienced user of this forum said: "The key is the input of the hash function to build up a fast internal hash table. The key is hashed again to perform the lookup.".
If I hash a data ...
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Public seed expansion for uniform reference strings
Many cryptographic protocols are parameterized by a uniformly random reference string (e.g. the commitment key for Pedersen commitments).
Our goal is to publicly generate the random values of this ...
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Does processing a trully random seed though a non-cryptographic PRNG will result in a unpredictable stream?
I have been studying C/C++ and I read that if one wants unpredictable random data in a program, it is needed that a random generation function be supplied with truly and unpredictable random data (as ...
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Understanding seed phrase, private key, wallet addresses
I have a question about Cryptocurrency wallets like Metamask (soft) or Ledger (hard).
How is a 12 or 24 word seed phrase enough to show the same crypto addresses in any crypto wallet that supports the ...
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Is BLAKE2X suitable for generating keys with any security in bits event if BLAKE2 having only 256/512-bits?
I can generate a key of any security in bits with any hash function from random source with enough entropy by using the following scheme:
$$H(00||S) || H(01||S) || H(02||S) || H(03||S) || \cdots$$
/\ ...
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Hashing a seed together with a block counter and using as a encipherment scheme: What scheme is more secure in practice?
This question is related to this (but it is not the same).
Let's suppose I have a seed with an entropy of 1024-bits and hash it with a counter using a hash function with one-quarter of the seed size ...
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