Commit graph

584 commits

Author SHA1 Message Date
Heiko Schaefer
06da358f99
ch8: write missing "signatures for primary key metadata" section 2023-11-13 01:29:44 +01:00
Heiko Schaefer
6bbef95d21
ch4: add todo 2023-11-13 01:29:37 +01:00
Heiko Schaefer
7706df1cc9
ch4: fix typos 2023-11-13 01:28:11 +01:00
Heiko Schaefer
1c3a693442
minor editing fix 2023-11-12 00:44:54 +01:00
Heiko Schaefer
1c8d728612
revert accidental removal of Fingerprint diagram 2023-11-12 00:18:30 +01:00
Heiko Schaefer
6dc243de98
ch7: Write "transformations" section about CSF 2023-11-11 21:05:01 +01:00
Heiko Schaefer
1b5edc1774
ch7: clarify CSF and its use 2023-11-11 21:05:01 +01:00
Tammi L. Coles
4fd97868e8 edit ch7 forms of data signatures 2023-11-10 17:53:52 +01:00
Tammi L. Coles
f7ea1b115e edit ch7 ## Signature types 2023-11-10 17:45:36 +01:00
Tammi L. Coles
51ba919106 edit ch7 signatures over data 2023-11-10 17:28:26 +01:00
Tammi L. Coles
8a82cebd6c edit ch6 notation subpackets with the Keyoxide example 2023-11-10 16:48:25 +01:00
Tammi L. Coles
44a4a00a2e edit ch6 "Criticality of subpackets" 2023-11-10 16:30:07 +01:00
Tammi L. Coles
93d061efc7 remove another random colon :D 2023-11-10 15:57:47 +01:00
Tammi L. Coles
48f39f0ffb remove colon from subheader 2023-11-10 15:57:07 +01:00
Tammi L. Coles
ec61e782df edit ch6 hashed vs unhashed areas 2023-11-10 15:56:22 +01:00
Tammi L. Coles
18a621c827 edit on ch6 verifying packet section and subpackets 2023-11-10 15:41:11 +01:00
Tammi L. Coles
3dcc962c57 edit on ch6 verifying packet section 2023-11-10 15:21:22 +01:00
Tammi L. Coles
3b401a17a7 tighten up ch6 signature packet creation section 2023-11-10 15:07:35 +01:00
Tammi L. Coles
d4a616094e restructure signature packet section of ch6 2023-11-10 14:45:39 +01:00
Heiko Schaefer
2445b2f414
ch7: edits for clarity 2023-11-10 01:59:20 +01:00
Heiko Schaefer
7f9aba28fa
restructure text blocks 2023-11-09 01:43:56 +01:00
Heiko Schaefer
420e15e8c8
remove seemingly stray text 2023-11-08 21:01:29 +01:00
Heiko Schaefer
1335d5568f
edits 2023-11-08 21:01:28 +01:00
Heiko Schaefer
b73789d1c8
adjust structure 2023-11-08 21:00:29 +01:00
Heiko Schaefer
0039afd7fd
edits 2023-11-08 21:00:29 +01:00
Tammi L. Coles
e20a629db7 edit signature types section in Ch6 2023-11-07 21:33:19 +01:00
Tammi L. Coles
2ee0d7263a edits on Ch6 terminology 2023-11-07 21:16:08 +01:00
Tammi L. Coles
e23fd3de9c tighten text of signatures intro section 2023-11-07 20:58:28 +01:00
Heiko Schaefer
bf41637c05
Restructure opening 2023-11-07 14:34:02 +01:00
Heiko Schaefer
390089139e
remove todo text 2023-11-06 23:25:29 +01:00
Heiko Schaefer
169ce620e9
Experiment: Adjust signature type diagram structure 2023-11-06 23:21:18 +01:00
Heiko Schaefer
658b03b1a4
Edits (in part based on feedback from David) 2023-11-06 13:45:50 +01:00
Heiko Schaefer
d1e23fef9e
Add new signature diagrams. Add some more text and structure for them. 2023-11-06 00:55:46 +01:00
Heiko Schaefer
1dc7a7f116
update image 2023-11-05 21:46:36 +01:00
Heiko Schaefer
366bb70b54
import new/updated diagrams from skvis-draft 2023-11-05 21:26:35 +01:00
skvisual
7326a765ad
import new/updated diagrams from skvis-draft 2023-11-05 21:20:52 +01:00
Heiko Schaefer
256c9b14e8
ch19: add link target 2023-11-05 20:56:05 +01:00
Heiko Schaefer
10246eebc1
Drop duplicate diagram files 2023-11-04 19:09:19 +01:00
Heiko Schaefer
c05cd64f7f
Drop many of the legacy diagrams 2023-11-04 19:06:40 +01:00
Heiko Schaefer
e1668dbd09
Add a bit of text about where the "backsig" is actually embedded 2023-11-04 18:39:18 +01:00
Heiko Schaefer
f91b386ea9
Edits based on David's input 2023-11-03 18:51:12 +01:00
Heiko Schaefer
4754753cfc
Elaborate how the signature is calculated 2023-11-03 18:51:12 +01:00
Heiko Schaefer
384f26c1bc
David says the signature type diagram is confusing, maybe it needs more explanation?
I suppose the (at least) 2x2 Matrix of types of component signatures is hard to make sense of, and hard to visualize.
2023-11-03 18:51:12 +01:00
Heiko Schaefer
4d8ade3502
Add diagram for signature packet structure 2023-11-03 18:51:12 +01:00
Heiko Schaefer
e814cc5bb1
tmp: placeholder images, waiting for replacements in skvis-draft 2023-11-03 18:51:12 +01:00
Heiko Schaefer
1ec7d9a2ea
David points out that "magic" can be read as intimidating.
Like a topic is very hard to understand, or only accessible to wizards.
2023-11-03 18:51:12 +01:00
Tammi L. Coles
bac6fbe6fd clause correction in 69f5bce965 2023-11-03 12:31:21 +01:00
Heiko Schaefer
5e97344039
fix link target name 2023-11-03 12:26:06 +01:00
Heiko Schaefer
d33c8d7933
ch3: sharpen our terminology, use "hash digest" by default
Fixes #98
2023-11-03 12:25:50 +01:00
Heiko Schaefer
40924bef0d
Slightly expand/clarify phrasing on quantum resistance 2023-11-03 12:25:50 +01:00
Tammi L. Coles
8bb4baeff7 change verb in ef7a9956e4 2023-11-03 12:20:58 +01:00
Tammi L. Coles
661beb75e4 correct spelling in be01588cce 2023-11-03 12:18:34 +01:00
Tammi L. Coles
94ef48bdee edit 3ca2bc5529 2023-11-03 12:16:27 +01:00
Heiko Schaefer
f6bcc53211
Fix tense 2023-11-03 12:04:05 +01:00
Heiko Schaefer
75ac101a40
Introduce terms: confidentiality and authenticity 2023-11-03 12:04:05 +01:00
Heiko Schaefer
53473b025c
Remove redundancy 2023-11-03 12:04:04 +01:00
Heiko Schaefer
22b05ed942
Motivation text for this document 2023-11-03 12:04:04 +01:00
Heiko Schaefer
a3cf766492
Reorder text 2023-11-03 12:04:04 +01:00
Tammi L. Coles
139a543db2 resolve https://codeberg.org/openpgp/notes/pulls/104#issuecomment-1318049 2023-11-03 11:59:37 +01:00
Heiko Schaefer
080c88909b
Cut redundancy 2023-11-03 11:53:34 +01:00
Heiko Schaefer
e4631e2b23
"Zooming in" content was moved to chapters at the end of the book 2023-11-03 11:53:34 +01:00
Heiko Schaefer
5eb6d310cf
Fix version claims and add a bit more detail about extensions to 4880.
It's not so straightforward: RFC 2440 and 4880 both define OpenPGP version 4 artifacts. So naming versions in the text is tricky.
2023-11-03 11:53:34 +01:00
Heiko Schaefer
1c9b9d8724
Remove stray brace 2023-11-03 11:53:34 +01:00
Heiko Schaefer
31d64fdb37
Fix link syntax 2023-11-03 11:53:34 +01:00
Heiko Schaefer
5f41b4fe64
update link to component_signatures_chapter 2023-11-03 10:56:05 +01:00
Heiko Schaefer
8704758dde
Merge branch 'draft' into tammi-ch4
# Conflicts:
#	book/source/04-certificates.md
2023-11-03 10:43:58 +01:00
Tammi L. Coles
8fc4302338 resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1317436 2023-11-03 10:35:36 +01:00
Tammi L. Coles
783b151af6 Resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291286 2023-11-03 10:20:20 +01:00
Tammi L. Coles
acb1d9f7e1 Resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291281 2023-11-03 10:16:00 +01:00
Tammi L. Coles
86ce3d8ce2 change to bind to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291278 2023-11-03 10:15:16 +01:00
Tammi L. Coles
969fde83b2 change often to typically to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291271 2023-11-03 10:14:19 +01:00
Tammi L. Coles
0febf20d24 correct that fingerprint is not unique to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291270 2023-11-03 10:10:36 +01:00
Tammi L. Coles
accdb48301 clarify distinct role of primary key to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291268 2023-11-03 10:08:55 +01:00
Heiko Schaefer
c563f8a891
Generate updated png (with spelling fix, but for some reason this time with white background 🤷) 2023-11-02 20:07:00 +01:00
David Runge
cb4ac38e05
Fix spelling in source files
Signed-off-by: David Runge <dave@sleepmap.de>
2023-11-02 18:41:36 +01:00
Tammi L. Coles
dde0eae900 spell out the "not unique" issue to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291244 2023-11-02 17:52:35 +01:00
Tammi L. Coles
6d9bf44ba5 change fingerprint language to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291232 2023-11-02 17:46:55 +01:00
Tammi L. Coles
4d695764d0 connect metadata paragraphs better to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291216 2023-11-02 17:42:27 +01:00
Tammi L. Coles
e878c637b8 edit 118 to resolve https://codeberg.org/openpgp/notes/pulls/81#issuecomment-1291275 2023-11-02 17:31:14 +01:00
David Runge
5fd9676392
Add a file to keep the static dir around when cloning the repo
Signed-off-by: David Runge <dave@sleepmap.de>
2023-11-02 16:46:17 +01:00
David Runge
415fb44ace
Do not fail on footnotes directly following a heading
Signed-off-by: David Runge <dave@sleepmap.de>
2023-11-02 16:46:16 +01:00
David Runge
a88e3023a8
Move 06-terminology.md to a temporary location
As mermaid pulls in many dependencies and is not setup in CI,
sphinx-build will fail on trying to render the file.

Signed-off-by: David Runge <dave@sleepmap.de>
2023-11-02 16:46:15 +01:00
Heiko Schaefer
3e64c68f92
use direct link (link checks in codeberg CI are currently failing for the archive.org link) 2023-11-02 14:55:25 +01:00
Heiko Schaefer
2a5667062e
ch17: use public key and direct key signature packet diagrams 2023-11-02 13:54:39 +01:00
Tammi L. Coles
333a8862ac change to calculated 2023-11-02 13:47:20 +01:00
Tammi L. Coles
43faca00e3 correct for hash digest, move reference 2023-11-02 13:44:28 +01:00
Tammi L. Coles
00270a07e5 remove extra space 2023-11-02 13:07:45 +01:00
Tammi L. Coles
e20658c249 resolve https://codeberg.org/openpgp/notes/pulls/91#issuecomment-1310156 2023-11-02 12:46:02 +01:00
Tammi L. Coles
a6516a949c resolve https://codeberg.org/openpgp/notes/pulls/91#issuecomment-1305908 2023-11-02 12:38:25 +01:00
Tammi L. Coles
d37382d43d Merge branch 'draft' into tammi-ch17 2023-11-02 10:42:41 +00:00
Tammi L. Coles
33cab7b59a change period to colon 2023-11-02 10:17:49 +01:00
Heiko Schaefer
ed7ab4760f
ch6: Use new diagram 2023-11-01 21:40:49 +01:00
Heiko Schaefer
5b0eb1948a
Import new diagrams 2023-11-01 21:34:51 +01:00
Heiko Schaefer
77c901889b
Terminology fix 2023-10-30 00:28:43 +01:00
Heiko Schaefer
1dbe95cb1f
fix link names 2023-10-29 23:47:36 +01:00
Heiko Schaefer
bedae03c42
fix todo admonition syntax 2023-10-29 23:36:35 +01:00
Heiko Schaefer
b257e9a366
moved "VISUAL" admonitions to #95
we should consider if we want such diagrams after the core writing phase (if we have time).
2023-10-29 23:14:32 +01:00
Heiko Schaefer
d44226d288
ch5: use new diagrams 2023-10-29 23:07:51 +01:00
Heiko Schaefer
4a568be351
import new diagrams 2023-10-29 23:07:50 +01:00
Heiko Schaefer
3f536dfaaa
ch7: merge in old text, edits 2023-10-29 22:44:07 +01:00
3ec73a8549
Initial work on Data Signatures chapter 2023-10-29 22:44:07 +01:00
Heiko Schaefer
4c52063536
ch6: add link anchor 2023-10-29 22:44:07 +01:00
Heiko Schaefer
e33ead3bb9
ch19: fix signature examples
- now the inline signature has a v6 One-Pass Signature packet
- don't generate differing signatures by running the non-deterministic `sq sign` multiple times
2023-10-29 22:44:07 +01:00
Heiko Schaefer
79f122114b
ch19: "zooming in" data signature examples 2023-10-29 22:44:07 +01:00
Heiko Schaefer
6c85ca62de
ch6: add short text about notations 2023-10-29 22:44:07 +01:00
Heiko Schaefer
a3b143d732
ch8: edits 2023-10-29 22:44:07 +01:00
Heiko Schaefer
fd0f0fe713
ch8: add clarifications 2023-10-29 22:44:07 +01:00
Heiko Schaefer
67ee9bfbe7
ch6, ch7: add notes 2023-10-29 22:44:07 +01:00
Heiko Schaefer
e7350e8f7a
ch6: rfc links 2023-10-29 22:44:07 +01:00
Heiko Schaefer
f9ab3ca17b
ch8: rfc links 2023-10-29 22:44:07 +01:00
Heiko Schaefer
e2d3fabdc5
ch8: more introductory text 2023-10-29 22:44:07 +01:00
Heiko Schaefer
33ad6fcd69
ch6: visual note 2023-10-29 22:44:07 +01:00
Heiko Schaefer
0cf0c2069c
swap chapters on signing components and data 2023-10-29 22:44:07 +01:00
Heiko Schaefer
06d3e1f230
edit moved/split out ch7 2023-10-29 22:44:07 +01:00
Heiko Schaefer
4000e1efdc
edit new ch6 2023-10-29 22:44:07 +01:00
Heiko Schaefer
604c801710
reorder chapters: 6 is now a general introduction to openpgp signatures 2023-10-29 22:44:07 +01:00
Heiko Schaefer
c27600fb6f
edits, more restructuring 2023-10-29 22:44:07 +01:00
Heiko Schaefer
8184304cd8
more restructuring 2023-10-29 22:44:07 +01:00
Heiko Schaefer
6440318fcc
minor restructure 2023-10-29 22:44:07 +01:00
Heiko Schaefer
03f8bf21c1
ch6: import new diagrams from skvis-draft 2023-10-29 22:44:07 +01:00
Heiko Schaefer
7417462441
edits 2023-10-29 22:44:07 +01:00
Heiko Schaefer
b332753936
include diagram as generated png, for now 2023-10-29 22:30:16 +01:00
Heiko Schaefer
19ac66ee5c
restructure 2023-10-29 22:30:16 +01:00
Heiko Schaefer
1b95fa95a3
myst markup fixes 2023-10-29 22:30:16 +01:00
Heiko Schaefer
9b3d3c51b2
early version of new binding diagram 2023-10-29 22:26:39 +01:00
49f30fc8df
Remove todo list 2023-10-29 22:26:39 +01:00
37d026a78b
Hard vs soft 2023-10-29 22:26:39 +01:00
f46ed006b9
Shift around the 4.2.3 text segments in ch6. 2023-10-29 22:26:39 +01:00
ff9f6bf1b3
Move 4.2.3 to chapter 6 2023-10-29 22:26:36 +01:00
fae5a5de50
Rename node 2023-10-29 22:26:29 +01:00
0d47939501
Move diagram to separate file 2023-10-29 22:26:29 +01:00
ae776d2b13
Signature Types 2023-10-29 22:26:29 +01:00
d4d02dffba
Add / revoke subkeys 2023-10-29 22:26:29 +01:00
7bbc2f2434
Revocation 2023-10-29 22:26:29 +01:00
23bd402f4e
Fix targets 2023-10-29 22:26:29 +01:00
1ce91b8820
Complete diagram 2023-10-29 22:26:29 +01:00
5f8e36a605
Add signature diagram 2023-10-29 22:26:29 +01:00
c5ba06dc78
s/user ID/User ID/ 2023-10-29 22:26:29 +01:00
be5fff67ab
Progress 2023-10-29 22:26:29 +01:00
c80678e8f1
Move conflict-related changes to conflicts and duplication section 2023-10-29 22:26:29 +01:00
f04987df80
Add section on packet criticality 2023-10-29 22:26:29 +01:00
6c88b1631d
Fix notes on subpackets 2023-10-29 22:26:29 +01:00
heiko
55a6aac9dd Merge branch 'draft' into tammi-ch3-MAC 2023-10-29 14:07:39 +00:00
Heiko Schaefer
543b1a8cc1
clearly mark different sections of packet discussions 2023-10-28 01:50:07 +02:00
Heiko Schaefer
1612dfd5ba
wording fix 2023-10-28 01:47:40 +02:00
Heiko Schaefer
c3d7d5f8b5
ch4: updated user ids diagram 2023-10-28 01:04:45 +02:00
Heiko Schaefer
f0d240c5fa
this fixes a git mixup i made 2023-10-28 01:02:54 +02:00
Heiko Schaefer
3e3b7477bb
wording fix 2023-10-28 00:59:25 +02:00
Heiko Schaefer
4febf47bf0
add TODO note 2023-10-28 00:58:26 +02:00
Heiko Schaefer
a890aeddd5
wording fix 2023-10-27 23:40:07 +02:00
Heiko Schaefer
890f90c5f3
typo fix 2023-10-27 23:38:54 +02:00
Heiko Schaefer
38f5139600
word fix 2023-10-27 23:37:45 +02:00
Heiko Schaefer
a590637762
fixes to Direct Key Signature section 2023-10-27 23:34:41 +02:00
Heiko Schaefer
2c57712c3b
fix title 2023-10-27 23:24:59 +02:00
Tammi L. Coles
05d2e15fee finish current version of ch17, UserID+certification self-sig 2023-10-27 17:17:47 +02:00
Tammi L. Coles
a487db6996 correct packet type ID capitalization 2023-10-27 16:46:14 +02:00
Tammi L. Coles
a2b8f75ea2 edit User ID packet 2023-10-27 16:45:41 +02:00
Tammi L. Coles
580325dca4 edit ## Adding an identity component 2023-10-27 16:33:45 +02:00
Tammi L. Coles
63fbd49dcf edit subkey binding signature, correct comma placement 2023-10-27 16:20:48 +02:00
Tammi L. Coles
c2405f53ef edit next part of subkex binding signature 2023-10-27 15:01:20 +02:00
Tammi L. Coles
b6da12d0ee edit part 1 of subkey binding signature 2023-10-27 14:55:17 +02:00
Tammi L. Coles
fb24639ea1 edit Public-Subkey packet 2023-10-27 14:37:26 +02:00
Tammi L. Coles
1f8411caa6 edit encryption subkey 2023-10-27 14:17:25 +02:00
Tammi L. Coles
c8b417ccdb finish direct key signature section 2023-10-27 11:59:39 +02:00
Tammi L. Coles
199d0bb5e8 reformat subpacket details to ease comprehension 2023-10-27 11:05:18 +02:00
Tammi L. Coles
6283630e6c edits to ch17 field-by-field explainer 2023-10-27 09:45:26 +02:00
Tammi L. Coles
3f38d588f5 edit ch17 2023-10-27 09:26:13 +02:00
Tammi L. Coles
a2aa3c9109 edit KDFs section 2023-10-26 14:12:48 +02:00
David Runge
6aeaa0d35d
fix: Use current link for flowcrypt on sending password protected mails
Signed-off-by: David Runge <dave@sleepmap.de>
2023-10-26 13:08:50 +02:00
Tammi L. Coles
4bf1ded007 edit ch3 MAC section 2023-10-26 12:12:26 +02:00
Tammi L. Coles
647b2494f5 Merge pull request 'Add section on KDFs' (#83) from 03-key_derivation into draft
Reviewed-on: https://codeberg.org/openpgp/notes/pulls/83
2023-10-26 09:32:04 +00:00
Heiko Schaefer
5496d54772
add link to gcm discussion, as a note for writing 2023-10-25 16:17:03 +02:00
Heiko Schaefer
460bc9d5a4
ch5: fix admonition type 2023-10-24 21:09:39 +02:00
Heiko Schaefer
87e26fa6cd
ch5: process input from wiktor 2023-10-24 21:08:14 +02:00
Heiko Schaefer
74d58454ea
ch17: import new diagram from skvis-draft 2023-10-24 00:53:53 +02:00
Tammi L. Coles
01103ebcf6
manually add link to zoom_certificates from issue #73 2023-10-24 00:53:18 +02:00
Heiko Schaefer
576c8de26d
ch18: add "secret-key packet" diagram 2023-10-24 00:41:10 +02:00
David Runge
121e352b59
feat: Add license attribution for all files
Signed-off-by: David Runge <dave@sleepmap.de>
2023-10-23 20:55:08 +02:00
e4164aab4d
Add section on HMAC 2023-10-23 13:04:42 +02:00
0b078830f2
Add section on KDFs 2023-10-23 12:40:15 +02:00
Heiko Schaefer
1ba8ac2884
ch3: fix myst syntax 2023-10-23 11:54:42 +02:00
Tammi L. Coles
9e4944064c manually add issue #73 again 2023-10-22 13:10:10 +02:00
Tammi L. Coles
27a43977cb remove misplaced section 2023-10-22 13:05:35 +02:00
Tammi L. Coles
7e709c6a00 manually add issue #73 2023-10-22 11:49:41 +02:00
Heiko Schaefer
a8467cd166
ch3: drop todo, the key types are now visualized 2023-10-22 10:15:42 +02:00
Heiko Schaefer
cf8c754624
use new diagrams for ch3 2023-10-22 09:59:41 +02:00
Heiko Schaefer
14e3919b9d
add new key diagrams for ch3 2023-10-22 09:59:41 +02:00
Tammi L. Coles
bd468da34f
expand on hybrid concept, mark for move 2023-10-22 09:59:41 +02:00
Tammi L. Coles
e1f0452ccd
expand on hybrid concept 2023-10-22 09:59:41 +02:00
Tammi L. Coles
b9341d921e
clarify MDC 2023-10-22 09:59:41 +02:00
Tammi L. Coles
6734930bd9
edit hybrid cryptosystems 2023-10-22 09:59:41 +02:00
Tammi L. Coles
5e6a857040
clarify private vs secret in this document 2023-10-22 09:59:41 +02:00
Tammi L. Coles
d810608dc6
swap parts for components 2023-10-22 09:59:41 +02:00
Tammi L. Coles
773015bdf4
clarify private vs secret in this document 2023-10-22 09:59:41 +02:00
Tammi L. Coles
bef3a69be9
rewrite header and note on Usage and terminology 2023-10-22 09:59:41 +02:00
Tammi L. Coles
b33251aa31
rework language of digital signatures and signers 2023-10-22 09:59:41 +02:00
Tammi L. Coles
57c4d2ef31
improve language of asymmetric key pair section 2023-10-22 09:59:41 +02:00
Tammi L. Coles
891ce892fc
simplify public-key cryptophay section for dummies like me 2023-10-22 09:59:41 +02:00
Tammi L. Coles
61f8a76bd6
simplify AEAD language, correct punctuation of footnote 2023-10-22 09:59:41 +02:00
Tammi L. Coles
4d0fbb3f43
simplify sessionkey footnote 2023-10-22 09:59:41 +02:00