Last updated on Aug 29, 2024
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PKI vs SSL certificates
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Best practices for PKI and SSL certificates
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Common pitfalls of PKI and SSL certificates
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How to avoid or fix PKI and SSL certificates pitfalls
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Benefits of PKI and SSL certificates
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Here’s what else to consider
PKI and SSL certificates are essential for securing online communication and transactions. They provide encryption, authentication, and trust for websites, applications, and networks. However, implementing and managing them can be challenging and complex. In this article, you will learn some of the best practices and common pitfalls of using PKI and SSL certificates, and how to avoid them.
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1 PKI vs SSL certificates
PKI stands for public key infrastructure, which is a system of policies, procedures, and technologies that enable the creation, distribution, and verification of digital certificates. A digital certificate is a document that contains a public key and identifies its owner. SSL stands for secure sockets layer, which is a protocol that uses PKI to establish encrypted and authenticated connections between a client and a server. An SSL certificate is a type of digital certificate that verifies the identity and validity of a website or application.
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Die Implementierung eines SSL-Zertifikats ist inzwischen ein Muss, nicht nur aus Sicherheitsgründen, sondern auch wegen der Auswirkungen auf das Ranking in Suchmaschinen. Eine der besten Praktiken ist sicherzustellen, dass alle HTTP-Links automatisch auf HTTPS umgeleitet werden. Dies verhindert nicht nur „Mixed Content“-Warnungen, sondern stellt auch sicher, dass die SEO-Wirkung vollständig genutzt wird.
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2 Best practices for PKI and SSL certificates
To ensure the security and reliability of your PKI and SSL certificates, you should follow some best practices, such as choosing a trusted certificate authority to issue and manage your certificates. Strong encryption algorithms and key lengths should be used for your certificates, with the recommended minimum being 2048-bit RSA or 256-bit ECC for public keys, and TLS 1.2 or higher for SSL protocol. Additionally, private keys should be kept secure and confidential, stored in a safe location such as a hardware security module (HSM), and protected with strong passwords or passphrases. Furthermore, certificates should be renewed before they expire in order to avoid errors, warnings, or failures in connections, as well as security risks. If certificates are compromised or no longer needed, they should be revoked immediately and replaced with new ones. Lastly, if you change your domain name, server, or application, you should revoke your certificates.
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3 Common pitfalls of PKI and SSL certificates
Despite following the best practices, you may still experience some pitfalls or challenges when using PKI and SSL certificates, such as certificate mismatch or misconfiguration, certificate chain or trust issues, and certificate renewal or revocation errors. Certificate mismatch or misconfiguration can lead to connection errors or warnings, or even denial of service attacks. Certificate chain or trust issues can cause untrusted or invalid certificate warnings or errors. If you fail to renew or revoke your certificates on time or properly, or if you have communication or synchronization problems with your CA or your servers, it may result in expired or revoked certificate warnings or errors, and even security breaches.
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4 How to avoid or fix PKI and SSL certificates pitfalls
To avoid or fix the common pitfalls of PKI and SSL certificates, you should take preventive or corrective measures, such as using tools or services to generate, install, configure, and test your certificates. For example, you can use Let's Encrypt, a free and automated CA that provides SSL certificates for websites, or SSL Labs, a website that tests and grades your SSL configuration and performance. Additionally, you can use Certbot to monitor and renew your Let's Encrypt certificates, or CRLSets to distribute revocation information to browsers. Moreover, OpenSSL is a software that can perform various operations on certificates, keys, and SSL connections; while SSL Checker is a website that can verify certificate validity, chain, and trust.
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Besonders hervorzuheben ist die Nutzung von Let's Encrypt in Kombination mit Certbot, da diese Automatisierung nicht nur die Erneuerung von Zertifikaten erleichtert, sondern auch sicherstellt, dass die Website stets geschützt ist und keine Lücken durch abgelaufene Zertifikate entstehen. Ebenso sind regelmäßige Tests mit SSL Labs und SSL Checker unverzichtbar, um sicherzustellen, dass Ihre SSL-Konfiguration nicht nur sicher, sondern auch optimal für SEO und Benutzererfahrung ist.
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5 Benefits of PKI and SSL certificates
By following the best practices and avoiding the common pitfalls of PKI and SSL certificates, you can enjoy enhanced security and privacy, increased trust and reputation, and improved performance and compatibility. PKI and SSL certificates can protect your data from eavesdropping or tampering by encrypting your communication. They can also prove your identity and legitimacy to your clients by displaying a padlock icon or a green bar in their browsers. Plus, they can improve your speed and efficiency by using modern encryption algorithms and protocols that reduce latency and bandwidth consumption. Furthermore, they can support various browsers, devices, and platforms that require or prefer SSL connections.
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6 Here’s what else to consider
This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?
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SSL kann die Ladezeiten einer Website beeinflussen, was wiederum die Benutzererfahrung und das SEO-Ranking beeinträchtigen kann. Die Wahl eines Zertifikats mit einer modernen Verschlüsselungsmethode sowie die Nutzung eines Content Delivery Networks (CDN) können dazu beitragen, die Auswirkungen auf die Ladezeit zu minimieren.
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