Convert your SSL certificates from CRT to PEM effortlessly with certificatetool.com converter. Just upload your certificate file, choose your new format, and click convert. Done!
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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 CER file to other formats, check CRT Converter page.
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The extension CRT is employed for certificates, with CER and CRT being almost interchangeable. This is especially prevalent in *nix systems. A file with a .crt extension encompasses an end-entity certificate, its public key, and identity details such as domain names verified to be linked with the certificate.
CRT certificates play a crucial role in enabling secure TLS handshakes, substantiating website identity ownership to browsers, and establishing encrypted sessions that are shielded against eavesdropping and content tampering.
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.
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