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VeriSign Universal Root Certification Authority Certificate - B677FA6948479F5312D5C2EA07327607D1970719
Certificate Summary: Subject: VeriSign Universal Root Certification Authority Issuer: VeriSign Universal Root Certification Authority Expiration: 2037-12-01 23:59:59 UTC Key Identifier: B6:77:FA:69:48:47:9F:53:12:D5: C2:EA:07:32:76:07:D1:97:07:19Received at FYIcenter.com on: 2016-11-15 VeriSign Univ...
2021-01-28, 14728👍, 1💬

💬 2021-01-28 kevin kingston: good.

OpenSSL Tutorials
Where to find tutorials on using OpenSSL to manage certificate? Here is a collection of tutorials on managing certificates with OpenSSL compiled by FYIcenter.com team. Topics include installing OpenSSL on Windows, OpenSSL commands and options, validating certificates, etc. General Information about ...
2016-11-23, 14700👍, 0💬

Microsoft "certutil -hashfile..." - Certificate Hash Value
How to get the hash value (or thumbprint value) of a certificate? I have the certificate stored in DER (Distinguished Encoding Rules) format. If you have a certificate saved in a certificate file in DER (binary) format, you can get the SHA1 hash value of the sertificate using you can use the Microso...
2013-04-25, 14632👍, 0💬

"certmgr.exe -add -c" - Import a Certificate
How to import a certificates to a system certificate store using "certmgr.exe" tool? You can import a certificate to a system certificate store using "certmgr.exe -add -c" command as shown in this tutorial. C:\fyicenter&gt; "\Program Files\Microsoft Visual Studio 8\sdk\v2.0\bin\certmgr.exe" -add...
2012-08-08, 14575👍, 0💬

DigiCert High Assurance CA-3 Certificate - 50EA7389DB29FB108F9EE50120D4DE79994883F7
Certificate Summary: Subject: DigiCert High Assurance CA-3 Issuer: DigiCert High Assurance EV Root CA Expiration: 2022-04-03 00:00:00 UTC Key Identifier: 50:EA:73:89:DB:29:FB:10:8F:9E: E5:01:20:D4:DE:79:99:48:83:F7Received at FYIcenter.com on: 2016-10-29 DigiCert High Assurance CA-3 Certificate - 50...
2012-07-26, 14371👍, 0💬

certmgr.msc - Delete Certificate from Certificate Store
How to delete a certificate from a certificate store using "certmgr.msc"? The certificate has been expired long time ago and I don't want it any more You can delete a certificate from a certificate store using the "certmgr.msc" tool as shown in this tutorial. 1. Start "certmgr.msc" Management Consol...
2012-08-03, 14253👍, 0💬

Run OpenSSL Commands
How to run OpenSSL commands? I have OpenSSL installed on my Windows computer. If you have OpenSSL for Windows installed, you can run OpenSSL commands in two ways: 1. Run a single OpenSSL command at the Windows command prompt by entering "openssl &lt;command&gt;" together. The following examp...
2020-11-13, 14223👍, 2💬

💬 2020-11-13 Havens: openssl s_client -showcerts -verify 5 -connect wbservices.vibeaccount.com:443

💬 2020-09-30 df: openssl genrsa -out private_key.pem 2048

Java "keytool -genkeypair" Command Options
What options are supported by the "keytool -genkeypair" command? Java Keytool can be used to generate a pair of public key and private key with the "keytool -genkeypair" command, which supports the following options: C:\Users\fyicenter>"\Program Files\java\jre7\bin\keytool" -genkeypair -help keytool...
2012-07-19, 14174👍, 0💬

Delete Root CA Certificate from Google Chrome
How to delete a root CA certificate from Google Chrome? I don't know this CA (Certificate Authority) and don't want to trust any Web sites that uses this CA. On a Windows 7 system, you can not delete a server certificate from Google Chrome if you don't have the admin permission. The "Remove" button ...
2020-01-03, 14160👍, 2💬

💬 2020-01-03 FYIcenter.com: @hazzly, there is no other way to delete root CA certificates. It’s protected by the administrator password.

💬 2020-01-02 hazzly: if some time we canot open run administrator because it's asking to admin user name password , then we just going normaly in sit...

How to Run Java Control Panel on Windows
How to run Java Control Panel on Windows? I can not find it in Control Panel on my Windows 7 system. The "Java Control Panel" tool is located in the "Programs" category of the Windows Control Panel as shown below: If want to start "Java Control Panel" from a command line window, you can run the "jav...
2012-07-21, 14016👍, 0💬

certmgr.msc - Export Certificate from Certificate Store
How to export a certificate from a certificate store using "certmgr.msc"? I want to keep it in a certificate file. You can export a certificate from a certificate store to a certificate file using the "certmgr.msc" tool as shown in this tutorial. 1. Start "certmgr.msc" Management Console on your Win...
2019-01-11, 14009👍, 1💬

FYIcenter RSA Private Key Generator
How to generate a pair of RSA Private Key and Public Key? To help you to generate a pair of RSA Private Key and Public Key, FYIcenter.com has designed this online tool. All you need to do is to specify the key size between 384 and 4096, and click the "Generate" button below. Generated key details wi...
2019-01-14, 13919👍, 19💬

💬 2018-10-14 FYIcenter.com: @Cindy, Yes. Keys generated here are valid RSA keys!

💬 2018-10-12 CINDY LEE APPLEY: IS THIS CORRECT

💬 2018-09-12 Cindy appley: Please is this correct

(More comments ...)

OpenSSL "x509" Command Options
What can I use OpenSSL "x509" command for? What are options supported by the "x509" command? OpenSSL "x509" command is a multi purpose certificate utility. It can be used to display certificate information, convert certificates to various forms, sign certificate requests like a "mini CA" or edit cer...
2021-01-16, 13822👍, 1💬

💬 2021-01-16 Rodrigo Barahona: Comentaros

OpenSSL "s_client -connect" - Connect to HTTPS Web Site
How to connect to a HTTPS Web site using OpenSSL? I see the Web sites using the "https:\" format. If you see a Web sites using the "https:\" format, for example https://twitter.com/login/, you can try to connect the Web site using the "x509 -connect" command as shown below: C:\Users\fyicenter&gt...
2012-07-24, 13777👍, 0💬

Symantec Class 3 Secure Server CA - G4 Certificate - 5F60CF619055DF8443148A602AB2F57AF44318EF
Certificate Summary: Subject: Symantec Class 3 Secure Server CA - G4 Issuer: VeriSign Class 3 Public Primary Certification Authority - G5 Expiration: 2023-10-30 23:59:59 UTC Key Identifier: 5F:60:CF:61:90:55:DF:84:43:14: 8A:60:2A:B2:F5:7A:F4:43:18:EFReceived at FYIcenter.com on: 2017-01-24 Symantec ...
2017-01-24, 13774👍, 2💬

💬 2017-01-24 FYIcenter.com: Hi Shari, "Let (a,b)=(1,8), what is a+b?" is an anti-spam question that helps to block spambots to submit spamming messages.

💬 2017-01-22 Shari: I don't understand what it is. Is it harmful or good? I don't understand Let (a,b)=(1,8), what is a+b? means.

*.usps.com Certificate - 17B4648896413719B3AB3757613AFB177F98F60A
Certificate Summary: Subject: *.usps.com Issuer: Cybertrust Public SureServer SV CA Expiration: 2014-03-25 18:38:46 UTC Key Identifier: 17:B4:64:88:96:41:37:19:B3:AB: 37:57:61:3A:FB:17:7F:98:F6:0AReceived at FYIcenter.com on: 2016-10-24 *.usps.com Certificate - 17B4648896413719B3AB3757613AFB 177F98F6...
2013-08-14, 13644👍, 0💬

Go Daddy Secure Certification Authority Certificate - FDAC6132936C45D6E2EE855F9ABAE7769968CCE7
Certificate Summary: Subject: Go Daddy Secure Certification Authority Issuer: Go Daddy Class 2 Certification Authority Expiration: 2026-11-16 01:54:37 UTC Key Identifier: FD:AC:61:32:93:6C:45:D6:E2:EE: 85:5F:9A:BA:E7:76:99:68:CC:E7Received at FYIcenter.com on: 2016-10-29 Go Daddy Secure Certificatio...
2012-07-23, 13505👍, 0💬

OpenSSL "s_client" Command Options
What can I use OpenSSL "s_client" command for? What are options supported by the "s_client" command? OpenSSL "s_client" command implements a generic SSL/TLS client which can establish a transparent connection to a remote server speaking SSL/TLS. It's intended for testing purposes only and provides o...
2012-07-23, 13482👍, 0💬

Help on Using the Java Keytool Command
How to get help on using the Java Keytool command? I have never used Keytool before. If you are new to the Java Keytool, you should first read the documentation: keytool - Key and Certificate Management Tool. Java Keytool is a command line tool. You need to run it from a command line window using th...
2012-07-19, 13129👍, 0💬

certmgr.exe - List of Command Options
How to get a list of all command options supported by "certmgr.exe"? You can see a list of all command options supported by running "certmgr.exe -h" as shown in this tutorial. C:\fyicenter&gt; "\Program Files\Microsoft Visual Studio 8\sdk\v2.0\bin\certmgr.exe" -h Usage: CertMgr [options][-s [-r ...
2012-08-07, 13047👍, 0💬

login.live.com Certificate - FE4E4EE5396928AB46FB9359204162DD03A92FFF
Certificate Summary: Subject: login.live.com Issuer: VeriSign Class 3 Extended Validation SSL CA Expiration: 2012-09-27 23:59:59 UTC Key Identifier: FE:4E:4E:E5:39:69:28:AB:46:FB: 93:59:20:41:62:DD:03:A9:2F:FFReceived at FYIcenter.com on: 2016-10-29 login.live.com Certificate - FE4E4EE5396928AB46FB9...
2012-07-26, 12922👍, 0💬

certmgr.msc - Import Personal Certificate
How to import personal certificate into certificate stores using "certmgr.msc"? My personal certificate also contains my private key and is stored in a PKCS#12 (Public-Key Cryptography Standards #12) file. You can import a private key with a self-signed certificate stored in a PKCS#12 file into cert...
2012-08-03, 12919👍, 0💬

Microsoft "certutil -addstore -user my ..." - Import Certificate
How to import a certificate from a certificate file into a certificate store with Microsoft "certutil" tool? If you want to import a certificate from a certificate file into a certificate store, you can use the Microsoft "certutil -addstore storename file_name" command as shown in this tutorial: C:\...
2013-03-01, 12888👍, 0💬

Microsoft "certutil -encode..." - Converte PEM file to DER
How to convert a certificate file in PEM (Privacy Enhanced Mail) format to DER (Distinguished Encoding Rules) format? If you want to convert a certificate from PEM format to DER format, you can use the Microsoft "certutil -decode input_file output_file" command as shown in this tutorial: C:\fyicente...
2013-04-25, 12536👍, 0💬

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