[bip151] slightly increase robustness of the re-keying#430
Merged
luke-jr merged 2 commits intobitcoin:masterfrom Aug 7, 2016
Merged
[bip151] slightly increase robustness of the re-keying#430luke-jr merged 2 commits intobitcoin:masterfrom
luke-jr merged 2 commits intobitcoin:masterfrom
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The current re-keying procedure does allow an attacker knowing the current symmetric cipher key while not knowing the session-id (derived from the ECDH secret) to "survive" the re-keying.
This will slightly increase the prediction resistance.
Also includes a ugly typo in the
hkdfkey. Reported by @ccjj.cc: @ccjj