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PRIOn knowledge basePRION:CVE-2023-26556HistoryApr 21, 2023 - 6:15 p.m.
Information disclosure
2023-04-2118:15:00
PRIOn knowledge base
www.prio-n.com
4
information disclosure
timing side-channel attack
secret key leak
go crypto/elliptic
scalar-multiplication
nvd
ecdsa/keygen
io.finnet tss-lib before 2.0.0 can leak a secret key via a timing side-channel attack because it relies on the scalar-multiplication implementation in Go crypto/elliptic, which is not constant time (there is an if statement in a loop). One leak is in ecdsa/keygen/round_2.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)
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Observable Discrepancy
2023-04-21 00:00:00