Post
Topic
Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
nomachine
on 10/03/2025, 03:38:40 UTC
Someone says I will crack SHA256, Hash160.
Someone else says "just looking for information".

I recently saw that they cracked SHA-256 and Hash160 using _mm256_loadu_si256 and other vectorized operations.  Roll Eyes

You're talking nonsense. AVX2 can indeed speed up SHA256 and Hash160 implementations by processing multiple blocks in parallel or vectorizing the arithmetic operations within the rounds. However, "cracking" SHA256 and Hash160 would require breaking its cryptographic security, which is not feasible with current technology, even with AVX2 optimizations. The speedup would only make hashing faster, not weaker. even if AVX2 processes 8 SHA256 instances in parallel, cracking a 160-bit hash (Hash160) would still require ~2¹⁶⁰ operations.  Grin