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Use of cryptographically insecure PRNG #1

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SecurityDat opened this issue Aug 21, 2023 · 0 comments
Open

Use of cryptographically insecure PRNG #1

SecurityDat opened this issue Aug 21, 2023 · 0 comments

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@SecurityDat
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Hello，I found that the nonce is generated by "ethash.rand.Int63()". This random number generation is actually pseudo-random. Using the nonce as a seed in the "mine" function may result in insufficient randomness and may be cracked by traversal.

Location: https://github.com/bitindi/blockchain-core/blob/main/consensus/ethash/sealer.go#L100
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@SecurityDat