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1. About Digital Certificate Trusted Root
In order to issue a browser recognized trusted digital certificate, the Certificate Authority(CA)'s root should be embedded in the browser “Trusted Root Certification Authorities” and it should have the proper certificate purpose. There are two type CAs: one is embedded its root CA in browser, another one is cross-sign or sub-CA to current root CA, let us check Network Solutions issued SSL certificate, this end user certificate issued by Network Solutions Certificate Authority under the root CA: UTN-USERFirst-Hardware.
And check another example from https://www.microsoft.com :
2. WoSign Digital Certificate Trusted Root
WoSign, as a later comer, also have its Sub-CA under UTN root like Network Solutions, here is the all UTN root CA in IE “Trusted Root Certification Authorities”:
WoSign have 5 Sub-CA roots for different digital certificate products, here is the details:
(1) WoSign SGC Server Authority
This root is for issuing SGC ZhenSSL that support Server-Gated Cryptography (SGC) technology to provide stronger encryption (at least 128 bit) for secure communication between clients and servers. SGC ZhenSSL is a SGC-enabled High Assurance SSL certificate:
Download(if you need): UTN - DATACorp SGC - WoSign SGC Server Authority
(2) WoSign Premium Server Authority
This root is for issuing ZhenSSL that to provide auto-negotiation strength (40/56/128bits) for secure communication between clients and servers. ZhenSSL is a High Assurance SSL certificate:
Download(if you need): UTN-USERFirst-Hardware - WoSign Premium Server Authority
(3) WoSign Server Authority
This root is for issuing KuaiSSL that to provide auto-negotiation strength (40/56/128bits) for secure communication between clients and servers. KuaiSSL is a Low Assurance SSL certificate that only verifies the domain name:
Download(if you need):
UTN-USERFirst-Hardware - WoSign Server Authority
(4) WoSign Code Signing Authority
This root is for issuing Code Signing Certificates for software publishers, we provide free time stamping service for Microsoft Authenticode Signing:
Download(if you need): UTN-USERFirst-Object - WoSign Code Signing Authority
WoSign Free Time Stamping URL:
http://timestamp.wosign.com/timestamp
(5) WoSign Client Authority
This root is for issuing Client Certificates for personal and organizational secure communication:
Download(if you need):
UTN-USERFirst-Client Authentication and Email - WoSign Client Authority
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