Posted by ajtowns
Jul 2, 2025/16:59 UTC
Per-hop blinding is a concept that enhances privacy in transactions by using a method where each hop in a transaction chain has its unique constant, known only to the current node and the initiating party. This approach employs inbound and outbound values, labeled R1
and R2
respectively, with R2
being derived from R1
by adding a product of the per-hop constant k
and a public key G
. This technique allows for the secure claiming of inbound funds by recalculating r1
from r2
using the known constant k
, effectively enabling the node to claim the funds without directly linking the inbound and outbound values on the blockchain. The essential feature of this method is its ability to maintain transactional privacy by not requiring the direct relation of inbound and outbound values (r1/r2
or R1/R2
) on the public ledger, thus preserving the anonymity of the transaction paths while still ensuring the integrity and claimability of the funds. This process underscores the importance of privacy in digital transactions, providing a mechanism to secure payments while protecting the identities and relationships of the involved parties.
TLDR
We’ll email you summaries of the latest discussions from authoritative bitcoin sources, like bitcoin-dev, lightning-dev, and Delving Bitcoin.
We'd love to hear your feedback on this project?
Give Feedback