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Code Issues Releases Wiki Activity

Minor clarification

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Tim Henkes 2020-03-08 17:45:14 +01:00
parent 24d82799d3
commit 20e29ee94b
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xep-0384.xml
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@ -232,7 +232,7 @@
<di><dt>number of pre-keys to provide in the bundle</dt><dd>The bundle SHOULD always contain around 100 pre-keys.</dd></di>
<di><dt>minimum number of pre-keys to provide in the bundle</dt><dd>The bundle MUST always contain at least 25 pre-keys.</dd></di>
<di><dt>associated data</dt><dd>The associated data is created by concatenating the identity keys of Alice and Bob: <tt>AD = Encode(IK_A) || Encode(IK_B)</tt></dd></di>
<di><dt>XEdDSA</dt><dd>To reduce the amount of bytes that have to be transferred, the key exchange uses <link url="https://signal.org/docs/specifications/xeddsa/">XEdDSA</link> on curves X25519/Ed25519 (aka XEd25519) to derive signing keys from encryption keys.</dd></di>
<di><dt>XEdDSA</dt><dd>To reduce the amount of bytes that have to be transferred, the key exchange uses <link url="https://signal.org/docs/specifications/xeddsa/">XEdDSA</link> on curves X25519/Ed25519 (aka XEd25519) to build and verify signatures using encryption key pairs.</dd></di>
</dl>
<p>
The key exchange is done just-in-time when sending the first message to a device. Thus, each key exchange message always also contains encrypted content as produced by the Double Ratchet encryption scheme below.