net/tools/ct_mapper/FILE_FORMAT.txt - Issue 1238413004: Framework for iterating over certificates in CT database from Chromium code. (not for review)

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Issue 1238413004: Framework for iterating over certificates in CT database from Chromium code. (not for review) (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Make samples page work Created 3 years, 6 months ago

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	1 The certificate transparency database is dumped into a simpler (uncompressed)

	2 format that can be quickly iterated by the mapper code.

	3

	4 The dump is a directory consisting of two files:

	5

	6 entries.bin

	7 -> This contains the leaf certificates for paths, and an array of indices

	8 into extra_certs.bin for the "extra certs" that make up the path.

	9

	10 extra_certs.bin

	11 -> Contains a sequence of unique certificate data that appear in

	12 certificate entries "extra certs". Comparatively this file is tiny as

	13 the number of unique intermediate certificates is small.

	14

	15

	16 entries.bin sequence of ENTRY

	17

	18 ENTRY is made up of:

	19 CERT -- the leaf certificate

	20 uint16 -- number of extra certificates that follow

	21 uint16* -- the list of IDs for the extra certs (the "id" is its order in ext ra_certs.bin)

	22

	23 CERT is made up of:

	24 uint32 -- byte count for following data (big-endian)

	25 bytes -- the DER-encoded leaf certificate

	26

	27 extra_certs.bin is made up of:

	28 CERT* -- the extra cert

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