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[bip151] fix typo in HKDF key

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Jonas Schnelli 2016-08-07 22:21:06 +02:00
parent 30a0580e91
commit 0c8256f764
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@ -39,7 +39,7 @@ Encryption initialization must happen before sending any other messages to the r
The symmetric encryption cipher keys will be calculated with ECDH/HKDF by sharing the pubkeys of a ephemeral key. Once the ECDH secret is calculated on each side, the symmetric encryption cipher keys must be derived with HKDF [2] after the following specification:
1. HKDF extraction
<code>PRK = HKDF_EXTRACT(hash=SHA256, salt="bitcoinechd", ikm=ecdh_secret|cipher-type)</code>.
<code>PRK = HKDF_EXTRACT(hash=SHA256, salt="bitcoinecdh", ikm=ecdh_secret|cipher-type)</code>.
2. Derive Key1
<code>K_1 = HKDF_EXPAND(prk=PRK, hash=SHA256, info="BitcoinK1", L=32)</code>