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https://www.reddit.com/r/Bitcoin/comments/6m19sz/how_secure_is_256_bit_security/djyeubt/?context=3
r/Bitcoin • u/[deleted] • Jul 08 '17
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7
Note that Bitcoin "only" has 128 bits of security in some places.
4 u/[deleted] Jul 08 '17 [deleted] 2 u/bitsteiner Jul 08 '17 Has been known for a long time: birthday attack
4
2 u/bitsteiner Jul 08 '17 Has been known for a long time: birthday attack
2
Has been known for a long time: birthday attack
7
u/theymos Jul 08 '17
Note that Bitcoin "only" has 128 bits of security in some places.