bitcoin/bips
1
0
Fork 0
mirror of https://github.com/bitcoin/bips.git synced 2025-05-12 12:03:29 +00:00
Code Issues Releases Wiki Activity

BIP 158: Specify endianness of block hash to k conversion.

Browse Source
This commit is contained in:
Jim Posen 2018-08-27 21:41:24 -07:00
parent ab53d7dcfa
commit fc511f11c6
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
bip-0158.mediawiki
View File

@ -305,9 +305,10 @@ Empirical analysis also shows that was chosen as these parameters minimize the
bandwidth utilized, considering both the expected number of blocks downloaded bandwidth utilized, considering both the expected number of blocks downloaded
due to false positives and the size of the filters themselves. due to false positives and the size of the filters themselves.
The parameter <code>k</code> MUST be set to the first 16 bytes of the hash of The parameter <code>k</code> MUST be set to the first 16 bytes of the hash
the block for which the filter is constructed. This ensures the key is (in standard little-endian representation) of the block for which the filter is
deterministic while still varying from block to block. constructed. This ensures the key is deterministic while still varying from
block to block.
Since the value <code>N</code> is required to decode a GCS, a serialized GCS Since the value <code>N</code> is required to decode a GCS, a serialized GCS
includes it as a prefix, written as a <code>CompactSize</code>. Thus, the includes it as a prefix, written as a <code>CompactSize</code>. Thus, the