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RFC 7170, "Tunnel Extensible Authentication Protocol (TEAP) Version 1", May 2014

Source of RFC: emu (sec)

Errata ID: 5128
Status: Reported
Type: Technical
Publication Format(s) : TEXT

Reported By: Tuure Vartiainen
Date Reported: 2017-09-25

Section 5.2. says:

IMCK[j] = TLS-PRF(S-IMCK[j-1], "Inner Methods Compound Keys",
                IMSK[j], 60)

It should say:

IMCK[j] = TLS-PRF(S-IMCK[j-1], "Inner Methods Compound Keys" | 
                IMSK[j], 60)


According to

RFC5246 The Transport Layer Security (TLS) Protocol Version 1.2

5. HMAC and the Pseudorandom Function

"TLS's PRF is created by applying P_hash to the secret as:

PRF(secret, label, seed) = P_<hash>(secret, label + seed)"

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