Tag Info

Why do some people believe that humans are "bad at" generating random numbers/characters like this?

In short, it is more than a belief: there is strong evidence that humans are not good entropy sources. There is a test for this Man vs. Machine. Or, why Man is not a Particularly Good Source of ...
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Accepted

Are one-time pads crackable in theory?

For example, for a target bitstring of 100 bits, I cannot scan all bitstrings of 100 bits and XOR each with the target, hoping to recover the message. This approach will produce all messages that can ...
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Accepted

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Example of cryptography random number

What kind of numbers are needed for cryptography/security? Are those integers? Bits. Simply have your TRNG generate random bits. As mentioned in the other answer, the only difference between bits/...
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Using Tweets as a Random seed

How are you going to decide which tweet to use? Randomly? This quickly leads to a chicken / egg problem. What if the chosen tweet is one word? That would not add a lot of entropy. What if twitter is ...
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Why do some people believe that humans are "bad at" generating random numbers/characters like this?

Randomness is a measurable, statistical property of a set of values. It doesn't mean the same as "hard for a human to guess." Your sample string is hard for a human to guess, but it isn't ...
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Are one-time pads crackable in theory?

I'll try a practical example: I trade stocks. Instructions to my broker use a simple Caesar shift cipher, but the shift varies by values in a one-time encryption pad. Common 8-char instructions ...

How can C rand() be exploited if a secure seed is used?

I once played this online game, it was an old-school MUD. You log in, chat, kill some goblins. It had a casino. You go into the casino and you bet X gold, and there was a 40% chance you win double ...
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How many hex digits do I need to compare when manually checking hash functions?

If you control both ends as well as the transfer channel - for example if you are transferring a large file between two of your own computers via a USB drive - then it's OK to only verify the hash ...
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You can just follow the instructions on HotBits, which is exactly what you're trying to build. It's been running for years and is the only radioactive TRNG on the internet. It goes into great depth ...
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Why do some people believe that humans are "bad at" generating random numbers/characters like this?

People are not that bad, but we're slow. See How were one-time pads and keys historically generated? In summary, MB's of 100% secure key material were generated for one time pads by people simply key ...
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Examples of frauds discovered because someone tried to mimic a random sequence

Following my comment, and even though it's a bit different from what you ask: I really enjoyed the story here where the use of an incorrect pseudorandom number generator led to the arrest of members ...
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