Convert your SSL certificates from PEM to CER effortlessly with certificatetool.com converter. Just upload your certificate file, choose your new format, and click convert. Done!
Certificatetool.com offers online and free SSL certificate format conversion tool without needing any software installation or running the OpenSSL commands. If you would like to convert your PEM file to other formats, check PEM Converter page.
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Privacy Enhanced Mail (PEM) serves as a file format designed for the storage of cryptographic data, functioning as a versatile container that accommodates the public certificate, private key, and root certificate. Initially developed for the Privacy Enhanced Mail (PEM) email encryption standard, the name PEM reflects its origin. Over time, PEM has expanded its utility to encompass various applications, such as securing websites, email encryption, and digital signatures.
Encoded in Base64, PEM files represent binary data in ASCII text, facilitating easy storage and transmission. These files adhere to a specific structure, featuring a header indicating the contained data type, followed by the data itself encoded in Base64. The conclusion of the data is marked by a footer.
Various software tools facilitate the creation of PEM files, and online tools are available to convert other file formats into the PEM format. Once a PEM file is generated, it can be employed to fortify a website or online application. Installation on the web server enables the file to encrypt and decrypt data transmitted between the server and the user's browser.
Beyond website security, PEM files find application in email encryption. Senders use the recipient's PEM file to encrypt an email message, and the recipient can subsequently decrypt the message using their own PEM file.
Overall, PEM files provide a secure and efficient means of storing and transmitting cryptographic information. Widely adopted, they play a crucial role in safeguarding websites, email communication, and other online applications.
A .cer file functions as a Secure Sockets Layer (SSL) certificate file, crucial for securing communication between web servers and web browsers. SSL certificates achieve this by encrypting transmitted data, thwarting eavesdroppers from intercepting and deciphering sensitive information.
SSL certificates are broadly categorized into server certificates and client certificates. Web servers utilize server certificates to authenticate themselves to web browsers, while client certificates enable web browsers to authenticate themselves to web servers. While .cer files are primarily associated with server certificates, they can also be employed for client certificates.
To utilize a .cer file, installation on the respective web server or web browser is necessary, with installation procedures varying depending on the software in use. Once installed, the .cer file becomes instrumental in verifying the identity of the counterpart before establishing a secure connection.
For web browsers, the validity of the .cer file can be confirmed by checking the lock icon in the address bar; a green lock icon signifies a valid certificate and a secure connection. On the other hand, web servers can verify .cer file validity by examining error logs, where the absence of errors indicates a valid certificate, signaling the server's readiness to accept connections.
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