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@AdiD253
Created November 12, 2018 13:41
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Hi(key, salt, i):
U1 := HMAC(key, salt + INT(1))
U2 := HMAC(key, U1)
(...)
Ui-1 := HMAC(key, Ui-2)
Ui := HMAC(key, Ui-1)
Hi := U1 XOR U2 XOR ... XOR Ui
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