Understanding SSL Certificate Extensions: PEM vs. CER vs. CRT In the realm of SSL certificates, file extensions like PEM, CER, and CRT play crucial roles in how cryptographic information is stored and shared. While often used interchangeably, each extension carries its own conventions and encoding formats. In this blog post, we'll unravel the differences between PEM, CER, and CRT to shed light on their individual purposes. PEM (Privacy Enhanced Mail) Format: PEM is a versatile format widely employed for storing cryptographic objects. It utilizes base64-encoded ASCII, often adorned with headers like "-----BEGIN CERTIFICATE-----" and "-----END CERTIFICATE-----." Extension: Files with the PEM extension are multipurpose, housing certificates, private keys, and other encoded data. Use Case: PEM's flexibility makes it suitable for a variety of cryptographic data, from certificates to private keys and certificate signing requests (CSRs). CER (Certificate) Format...
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