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[lsd0003] branch master updated: Added some more
From: |
gnunet |
Subject: |
[lsd0003] branch master updated: Added some more |
Date: |
Thu, 21 Jan 2021 15:53:41 +0100 |
This is an automated email from the git hooks/post-receive script.
elias-summermatter pushed a commit to branch master
in repository lsd0003.
The following commit(s) were added to refs/heads/master by this push:
new 0918a21 Added some more
0918a21 is described below
commit 0918a216074d31dbce3e743e29b491abea66153e
Author: Elias Summermatter <elias.summermatter@seccom.ch>
AuthorDate: Thu Jan 21 15:52:39 2021 +0100
Added some more
---
draft-summermatter-set-union.xml | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/draft-summermatter-set-union.xml b/draft-summermatter-set-union.xml
index 096ae56..869596c 100644
--- a/draft-summermatter-set-union.xml
+++ b/draft-summermatter-set-union.xml
@@ -1161,14 +1161,14 @@ hashSum | 0x0101 | 0x0101 | 0x5050 |
0000 |
32768 divided by the BUCKET_SIZE which is
13-byte (104-bit).
</t>
<t>
- The ID is generated as 64-bit value..... .
Finally the ID is salted to enable
- modification of the given IBF key based on the
salt this can be done in case the IBF does not
- successfully decode to new distribute the
elements to the buckets. Salting is done by calculation the
- salt modulo 64 (using only the lowest 6-bits
of the salt) and do a bitwise right rotation
- of the ID by the 6-bit salts numeric
representation.
+ The ID is generated as 64-bit output form a
KDF (HMAC-SHA512 as XTR and HMAC-SHA256 as PRF,
+ the output from SHA-512 is then truncated to
64 bits, salt of the KDF is always set to = 0).
+ Its important that the elements can be
redistributed over the buckets in case the IBF does not
+ decode, that's why the ID is salted with a
random salt given in the SALT field of this message.
+ Salting is done by calculation the a random
salt modulo 64 (using only the lowest 6-bits of the salt)
+ and do a bitwise right rotation of output of
KDF by the 6-bit salts numeric representation.
</t>
<t>
-
The HASH is calculated by calculating the
CRC32 checksum of the 64-bit ID value
which returns a 32-bit value. This is
calculated modulo the count of buckets to
ensure that it is a valid bucket index. Create
a new 64-bit value by shifting the 32-bit
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