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BACKGROUND _"Chrome will require that all TLS server certificates issued after 30 April, 2018 be compliant with the Chromium CT Policy [https://goo.gl/chrome/ct-policy]. After this date, when Chrome connects to a site serving a publicly-trusted certificate that is not compliant with the Chromium CT Policy, users will begin seeing a full page interstitial indicating their connection is not CT-compliant. Sub-resources served over https connections that are not CT-compliant will fail to load and w...
HOW TO PURCHASE, ISSUE, REPLACE, AND REVOKE SECURITY CERTIFICATES - VIDEOS PLEASE SELECT FROM THE BELOW HOW-TO VIDEOS:  * How to Purchase a Security Certificate [https://www.comodoca.com/en-us/support-videos/purchasing-a-security-certificate/] * How to Issue a New Security Certificate [https://www.comodoca.com/en-us/support-videos/issuing-a-new-security-certificate/] * How and When to Replace and Reissue a Security Certificate [https://www.comodoca.com/en-us/support-videos/replacing-an...
1. DOMAIN VALIDATED CERTIFICATES (DV) • A - Email Challenge-Response DCV • B - HTTP Based DCV • C - DNS CNAME Based DCV Following completion of one of the elements above the certificate will be signed and released Additional details can be found using the following URL: Methods of Domain Control Verification [https://support.comodo.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=1367&nav=0,96,1,33] Note that ALL SSL Certificates MUST undergo the above DCV process in addition ...
Our technical support staff are available 24 x 7 (barring any unforseen circumstances) for online chat. PLEASE NOTE: WE DO NOT PROVIDE ONLINE CHAT FOR ANY OF THE FREE SECURITY SOLUTIONS PRODUCTS. ANYONE REQUESTING SUPPORT FOR FREE PRODUCTS SHOULD SUBMIT A TICKET FROM HTTP://SUPPORT.COMODO.COM [HTTP://SUPPORT.COMODO.COM] AND SELECT "SUBMIT A TICKET" LINK. COMODO CERTIFICATE AUTHORITY COMODO SECURITY SOLUTIONS We provide online chat for technical issues on our range of SSL products. To ch...
SHA-2 SHA-1 (Legacy) Product Certification Path (Hierarchy) Certification Path (Hierarchy) EV [ inc. EV SGC & Multi-Domain ] * UserTrust / AddTrust External Root * COMODO RSA Certification Authority * COMODO RSA Extended Validation Secure Server CA * END-ENTITY/DOMAIN CERTIFICATE Download Files [https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/977/108/extended-validation-sha-2] * UserTrust / AddTrust External Root * COMODO Certifica...
1. INTRODUCTION No Comodo server authentication certificate may be issued until we have validated the Applicant's control of the domain(s) to appear in the subject of the certificate. We refer to this process as DCV (Domain Control Validation). Up to (and including) version 1.09 of this document, DCV could be performed using one of three methods: • Email challenge-response • Creation of a file on the domain’s HTTP server • Creation of a DNS CNAME record for that domain The details of how t...
Secure certificates of any type currently CANNOT be issued to individuals or business entities in the following countries websites or the following country-code-top-level domains (TLDs):   Restricted Countries Listing: The following countries are restricted by US Export restriction laws, therefore Comodo.com cannot issue ssl certificates for registrants in the following countries   AF Afghanistan CU Cuba ER Eritrea GN Guinea IQ Iraq IR Iran, Islamic Republic of KP Korea, De...
CODE SIGNING CERTIFICATES If you have come across malware signed with a Comodo issued Code Signing certificate please send as much detail as possible to: signedmalwarealert@comodo.com Helpful details include: * link to the signed malware * screenshots of the certificate details showing the signer organization or certificate serial number or other details which will help us identify the certificate * a copy of the actual certificate if possible SSL/TLS CERTIFICATES If you need to...
SSL CERTIFICATE COUNTRY CODES FIND YOUR COUNTRY CODE FROM THE LIST PROVIDED BELOW COUNTRY CODES ARE REQUIRED WHEN CREATING A CERTIFICATE SIGNING REQUEST. THE SSL CERTIFICATE COUNTRY CODES THAT YOU NEED TO ENTER WHEN CREATING YOUR CSR ARE AS FOLLOWS: * US United States of America * CA Canada * AX Åland Islands * AD Andorra * AE United Arab Emirates * AF Afghanistan * AG Antigua and Barbuda * AI Anguilla * AL Albania * AM Armenia * AN Netherlands Antilles * AO Angola ...
MICROSOFT OUTLOOK HAD PROBLEMS ENCRYPTING THIS MESSAGE BECAUSE THE FOLLOWING RECIPIENTS HAD MISSING OR INVALID CERTIFICATES, OR CONFLICTING OR UNSUPPORTED ENCRYPTION CAPABILITIES.   Secure two-way communication is achieved by both ends having certificates and having both parties give everyone their public key. If this is done then anyone, anywhere can send an encrypted (secret) message to either of these two people. These two people have that same ability and can now send encrypted messages ...
SSL BROWSER COMPATIBILITY * Comodo's extensive rootkey portfolio is trusted by over 99.9% of all browsers and mobile devices. * 99.9% of Internet users inherently trust Comodo Certificates - equivalent or better than VeriSign, GeoTrust or Godaddy. Scroll down to see the full list of browsers and mobile operating systems that support our roots. * Key Size: All Comodo root and intermediate certificates are signed with 2048 keys, guaranteeing your website enjoys the highest level of SSL p...
Please see the attachments for sample Legal Opinion Letter for EV based on organizational type. Sample Legal Opinion Letter for EV for Accountants. * Sample text to be used when sending letter from a Certified Public Accountant to verify facts regarding an EV SSL Certificate Order.     Sample Legal Opinion Letter for EV for Verifying a Government Organization * Government departments should use this form when asked to supply a legal opinion.     Sample Legal Opinion Letter for ...
TLS/SSL MAXIMUM VALIDITY NOT TO EXCEED 825 DAYS / 27 MONTHS As a result of a change in the policy requirements on Certification Authorities that resulted from consultation in the CA/Browser forum, Comodo CA will adopt a new maximum lifetime for all TLS/SSL certificates of 825 days.  825 days is just over 27 months.    This change will take effect from March 1st, 2018.    _THIS CHANGE DOES NOT AFFECT ANY CERTIFICATE ISSUED BEFORE MARCH 1ST, 2018.    NO CERTIFICATES WILL BE REVOKED AS A RESU...
DESCRIPTION: The user has exported the certificate with Firefox and is unable to import into MMC or IE or other application and getting password is incorrect when user is using correct password SOLUTION: Download openssl for windows and install it. Once installed have the user search for openssl.exe, right click and open file location. Have user go to the BIN directory and copy the full path example: C:OpenSSL-Win64bin Open command prompt window Windows key+R and type in CMD Type C...
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