Security Blog
The latest news and insights from Google on security and safety on the Internet
Certificate Transparency for Untrusted CAs
21 March 2016
Posted by Martin Smith, Software Engineer, Certificate Transparency
Today we are announcing a new Certificate Transparency log for a new set of root certificates: those that were once or are not yet trusted by browsers.
Certificate Transparency
(CT) data has a number of different uses, including protecting users from mis-issued certificates and providing webmasters and other interested parties with a public record of what certificates have been issued for domains.
Initially
, our logs included browser-trusted Certificate Authorities (CAs). However, there are two main classes of CA that can’t easily be included in the existing logs:
Those that were once trusted and have since been withdrawn from the root programs.
New CAs that are on the path to inclusion in browser trusted roots.
Including these in trusted logs is problematic for several reasons, including uncertainties around revocation policies and the possibility of cross-signing attacks being attempted by malicious third-parties.
However, visibility of these CAs’ activities is still useful, so we have created a new CT log for these certificates. This log will not be trusted by Chrome, and will provide a public record of certificates that are not accepted by the existing Google-operated logs.
The new log is accessible at
ct.googleapis.com/submariner
and is listed on our
Known Logs
page. It has the same API as the existing logs.
Initially, Submariner includes certificates chaining up to the set of root certificates that
Symantec
recently announced it had discontinued, as well as a
collection of additional roots
suggested to us that are pending inclusion in Mozilla.
Once Symantec’s affected certificates are no longer trusted by browsers, we will be withdrawing them from the trusted roots accepted by our existing logs (Aviator, Pilot, and Rocketeer).
Third parties are invited to suggest additional roots for potential inclusion in the new log by email to
google-ct-logs@googlegroups.com
.
Everyone is welcome to make use of the log to submit certificates and query data. We hope it will prove useful and help to improve web security.
No comments :
Post a Comment
Labels
#sharethemicincyber
#supplychain #security #opensource
android
android security
android tr
app security
big data
biometrics
blackhat
C++
chrome
chrome enterprise
chrome security
connected devices
CTF
diversity
encryption
federated learning
fuzzing
Gboard
google play
google play protect
hacking
interoperability
iot security
kubernetes
linux kernel
memory safety
Open Source
pha family highlights
pixel
privacy
private compute core
Rowhammer
rust
Security
security rewards program
sigstore
spyware
supply chain
targeted spyware
tensor
Titan M2
VDP
vulnerabilities
workshop
Archive
2024
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2023
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2022
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2021
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2020
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2019
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2018
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2017
Dec
Nov
Oct
Sept
Jul
Jun
May
Apr
Mar
Feb
Jan
2016
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2015
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
Jan
2014
Dec
Nov
Oct
Sept
Aug
Jul
Jun
Apr
Mar
Feb
Jan
2013
Dec
Nov
Oct
Aug
Jun
May
Apr
Mar
Feb
Jan
2012
Dec
Sept
Aug
Jun
May
Apr
Mar
Feb
Jan
2011
Dec
Nov
Oct
Sept
Aug
Jul
Jun
May
Apr
Mar
Feb
2010
Nov
Oct
Sept
Aug
Jul
May
Apr
Mar
2009
Nov
Oct
Aug
Jul
Jun
Mar
2008
Dec
Nov
Oct
Aug
Jul
May
Feb
2007
Nov
Oct
Sept
Jul
Jun
May
Feed
Follow @google
Follow
Give us feedback in our
Product Forums
.
Follow
No comments :
Post a Comment