Security Blog
The latest news and insights from Google on security and safety on the Internet
Proactive measures in digital certificate security
December 11, 2015
Posted by Ryan Sleevi, Software Engineer
Over the course of the coming weeks, Google will be moving to distrust the “Class 3 Public Primary CA” root certificate operated by Symantec Corporation, across Chrome, Android, and Google products. We are taking this action in response to a
notification by Symantec Corporation
that, as of December 1, 2015, Symantec has decided that this root will no longer comply with the
CA/Browser Forum’s Baseline Requirements
. As these requirements reflect industry best practice and are the foundation for publicly trusted certificates, the failure to comply with these represents an unacceptable risk to users of Google products.
Symantec has informed us they intend to use this root certificate for purposes other than publicly-trusted certificates. However, as this root certificate will no longer adhere to the CA/Browser Forum’s Baseline Requirements, Google is no longer able to ensure that the root certificate, or certificates issued from this root certificate, will not be used to intercept, disrupt, or impersonate the secure communication of Google’s products or users. As Symantec is unwilling to specify the new purposes for these certificates, and as they are aware of the risk to Google’s users, they have requested that Google take preventative action by removing and distrusting this root certificate. This step is necessary because this root certificate is widely trusted on platforms such as Android, Windows, and versions of OS X prior to OS X 10.11, and thus certificates Symantec issues under this root certificate would otherwise be treated as trustworthy.
Symantec has indicated that they do not believe their customers, who are the operators of secure websites, will be affected by this removal. Further, Symantec has also indicated that, to the best of their knowledge, they do not believe customers who attempt to access sites secured with Symantec certificates will be affected by this. Users or site operators who encounter issues with this distrusting and removal should
contact Symantec Technical Support
.
Further Technical Details of Affected Root:
Friendly Name:
Class 3 Public Primary Certification Authority
Subject:
C=US, O=VeriSign, Inc., OU=Class 3 Public Primary Certification Authority
Public Key Hash (SHA-1):
E2:7F:7B:D8:77:D5:DF:9E:0A:3F:9E:B4:CB:0E:2E:A9:EF:DB:69:77
Public Key Hash (SHA-256):
B1:12:41:42:A5:A1:A5:A2:88:19:C7:35:34:0E:FF:8C:9E:2F:81:68:FE:E3:BA:18:7F:25:3B:C1:A3:92:D7:E2
MD2 Version
Fingerprint (SHA-1):
74:2C:31:92:E6:07:E4:24:EB:45:49:54:2B:E1:BB:C5:3E:61:74:E2
Fingerprint (SHA-256):
E7:68:56:34:EF:AC:F6:9A:CE:93:9A:6B:25:5B:7B:4F:AB:EF:42:93:5B:50:A2:65:AC:B5:CB:60:27:E4:4E:70
SHA1 Version
Fingerprint (SHA-1)
: A1:DB:63:93:91:6F:17:E4:18:55:09:40:04:15:C7:02:40:B0:AE:6B
Fingerprint (SHA-256)
: A4:B6:B3:99:6F:C2:F3:06:B3:FD:86:81:BD:63:41:3D:8C:50:09:CC:4F:A3:29:C2:CC:F0:E2:FA:1B:14:03:05
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