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

Source of RFC: emu (sec)

Errata ID: 5127
Status: Reported
Type: Technical
Publication Format(s) : TEXT

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

Section 5.2. says:

IMSK = First 32 octets of TLS-PRF(EMSK, "TEAPbindkey@ietf.org" |
     "\0" | 64)

It should say:

IMSK = First 32 octets of TLS-PRF(EMSK, "TEAPbindkey@ietf.org" |
     "\0", 64)


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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