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Retrieving SSLSocket Information in Python
This section provides a tutorial example on retrieving SSL socket information from an HTTPS connection.
2022-10-01, ∼387🔥, 0💬

Getting Server Certificate Signed by CAcert.org
This section provides a tutorial example on how to submit a CSR (Certificate Signing Request) to CAcert.org to get a free server certificate.
2022-10-01, ∼385🔥, 0💬

Viewing Server Certificate Chain with Chrome on Android Phone
This section provides a tutorial example on how to view server certificate chain when visiting a 'https' Website with Chrome on Android phone. The top certificate in a certificate chain is the root CA certificate, which is trusted by browser settings.
2022-10-01, ∼385🔥, 0💬

Message Security Properties in Outlook 2007
This section describes how to view message security properties on received emails with digital signatures in MS Office Outlook 2007. Message security properties include both encryption layer and digital signature layers.
2022-10-01, ∼381🔥, 0💬

IE Reinstalling Root Certificates Automatically
This section provides a tutorial example showing IE reinstalls trusted root certificate automatically when it is needed to validate an HTTPS Web server certificate.
2022-10-01, ∼379🔥, 0💬

Viewing a Certificate with a Private Key
This section provides a tutorial example on how to import a PKCS12 file containing a private-public key pair and its certificate into Windows system using 'Internet Options'.
2022-10-01, ∼376🔥, 0💬

Comodo Free Personal Certificate
This chapter provides tutorial notes and example codes on Comodo free personal certificate. Topics include applying for a free personal certificate at Comodo; installing the personal certificate in Mozilla Firefox; backing up the personal certificate with the private key to a file; install the perso...
2022-10-01, ∼370🔥, 0💬

Issue New Certificate with My CA on macOS
This section provides a tutorial example on how to issue a new certificate from a CSR (Certificate Signing Request) with my private key and my root CA certificate on macOS using Keychain Access.
2022-10-01, ∼369🔥, 0💬

Asking OpenSSL to Verify Server's Certificate
This section provides a tutorial example on how to ask the OpenSSL module to verify HTTPS server's certificate using 'verify_peer' SSL context option.
2022-10-01, ∼368🔥, 0💬

About CAcert.org
This section describes the CAcert.org, a non-profit organization that issues certificates for free.
2022-10-01, ∼366🔥, 0💬

Dumping Server Certificate in Python
This section provides a tutorial example on dumping the server certificate in DER binary or PEM text format.
2022-10-01, ∼359🔥, 0💬

Installing Website Server Certificate on Android Phone
This section provides a tutorial example on how to install Website server certificate on Android phone by receiving certificate an email attachment.
2022-10-01, ∼359🔥, 0💬

Generating Certificate Signing Request (CSR)
This section provides a tutorial example on how to generate a private and public key pair for the domain name of a Web server and generate the Certificate Signing Request (CSR) asking a CA to sign the pubic key into a server certificate using JDK keytool command.
2022-10-01, ∼354🔥, 0💬

Verify Certificate Signed by My CA on macOS
This section provides a tutorial example on how to verify certificate signed with my private key and my root CA certificate on macOS using Keychain Access.
2022-10-01, ∼354🔥, 0💬

View Certificate Profile on iOS 10 iPhone
This section provides a tutorial example on how to view certificate profile and certificate details on iOS 10 iPhone.
2022-10-01, ∼353🔥, 0💬

Generating CSR for a Personal Certificate
This section provides a tutorial example on how to generate a CSR for a personal certificate on an email address with the JDK keytool command.
2022-10-01, ∼351🔥, 0💬

Viewing Certificate Details in Apple Safari
This section provides a tutorial example on how to view certificate details when visiting an 'https' Website in Apple Safari.
2022-10-01, ∼348🔥, 0💬

What Is PKCS12 File Format
This section describes the PKCS12 File Format, which can be used to store multiple cryptography objects, including private/public keys and certificates, in a single file.
2025-10-07, ∼344🔥, 1💬

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A Simple Email Message Example
This section provides a simple email message example without using the MIME (Multipurpose Internet Mail Extensions) protocol.
2022-10-01, ∼338🔥, 0💬

OpenSSL CA Database Files
This section describes OpenSSL CA database files, including the primary database file 'index.txt' and the serial number file 'serial'.
2024-11-27, ∼331🔥, 0💬

Visiting "https" Website with Apple Safari
This section describes how Apple Safari shows a lock icon when you visit an 'https' Website to indicate that the communication is secured with data encryption.
2022-10-01, ∼329🔥, 0💬

Storing Personal Certificate with Its Keys
This section provides a tutorial example on how to merge a personal certificate with its private-public key pair in a KeyStore file, which needs to be converted in a PKCS12 file, because most PKI applications can only import PKCS12 files.
2022-10-01, ∼326🔥, 0💬

Crypt::SSLeay Failing to Verify Server's Certificate
This section provides a tutorial example on how Crypt::SSLeay fails to verify HTTPS server's certificate using the HTTPS_CA_FILE environment variable, the CA certificate can not be found.
2022-10-01, ∼324🔥, 0💬

Signing OpenOffice.org 3 Document Worked
This section provides a tutorial example on how to sign an OpenOffice.org 3 document with my personal certificate issued by CAcert.org.
2022-10-01, ∼320🔥, 0💬

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