.CSR File Recovery

Have files been deleted due to a user’s error or software error? Have you formatted a disk by accident and need to know how to recover the files? Read our .CSR file recovery guide for Windows, MacOS, Android and IOS in 2024.

CSR File Recovery

What is a .CSR file?

A CSR file is a file created as a signing request for a digital certificate. It contains an encrypted block of text that identifies the applicant of the certificate and includes encrypted data for country, state, organization, domain, email address, and public key. The file is used by a Certificate Authority to establish proof of identity for Web sites.

What Are Common Causes of ".CSR" Files Lost or Failure?

There are several common causes of ".CSR" (Certificate Signing Request) files being lost or failing:

  1. Accidental deletion: Users may accidentally delete the ".CSR" file while cleaning up their computer or organizing files.
  2. File corruption: The ".CSR" file can get corrupted due to various reasons such as improper system shutdown, hardware failure, or software issues.
  3. Storage media failure: If the ".CSR" file is stored on a faulty or damaged storage device such as a hard drive or USB drive, it can become inaccessible or lost.
  4. Virus or malware attack: Malicious software can infect and damage files on a computer, including ".CSR" files.
  5. Human error: Mistakes made by users, such as overwriting or incorrectly saving the ".CSR" file, can lead to its loss or failure.
  6. Software or system updates: Sometimes, updating software or operating systems can cause compatibility issues, leading to the loss or failure of ".CSR" files.
  7. Hardware or system failure: If there is a hardware failure or system crash, it can result in the loss of ".CSR" files.
  8. Inadequate backup measures: If proper backup procedures are not followed, there is a higher risk of losing ".CSR" files in case of any unforeseen events.

To prevent the loss or failure of ".CSR" files, it is recommended to regularly backup files, use reliable storage devices, keep antivirus software up to date, and be cautious while handling and managing files.

How to recover lost ".CSR" files?

Sometimes while working with a computer, laptop or other stationary or mobile devices, you may encounter various bugs, freezes, hardware or software failures, even in spite of regular updates and junk cleaning. As a result, an important ".CSR" file may be deleted.

Go to view
🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

By no means should you think that the only way to recover a ".CSR" file is always to create it once more.

Use programs for recovering ".CSR" files if a file was lost after accidental or deliberate deleting, formatting the memory card or the internal storage, cleaning the storage device, after a virus attack or a system failure.

Programs to recover ".CSR" files

Looking for a way to get files back? In cases when files were deleted and they cannot be restored by using standard operating system tools, use Hetman Partition Recovery.

Partition Recovery™ 4.9
The tool recovers data from any devices, regardless of the cause of data loss.

Follow the directions below:

  1. Download Hetman Partition Recovery, install and start the program.

  2. The program will automatically scan the computer and display all hard disks and removable drives connected to it, as well as physical and local disks.

    File Recovery Software
  3. Double-click on the disk from which you need to recover ".CSR" files, and select analysis type.

    Hetman Partition Recovery - Analysis Type
  4. When the scanning is over, you will be shown the files for recovery.

    Hetman Partition Recovery - Files that Can be Restored
  5. To find a file you need, use the program’s interface to open the folder it was deleted from, or go to the folder "Content-Aware Analysis" and select the required file type.

    Hetman Partition Recovery - Deep Scan
  6. Select the files you have been looking for and click "Recovery".

    File Recovery Software - Files List for Recovery
  7. Choose one of the methods for saving the files and recover them.

    Saving recovered files in Hetman Partition Recovery

How to open file with ".CSR" extension?

Looking for how to open a stereo certificate Signing Request File image file file?

Programs that open ".CSR" files

Microsoft IIS Microsoft IIS

Additional Information

  • File type: Certificate Signing Request File

  • File extension: .CSR

  • Developer: Невідомо

  • Category: Web Files

  • Format: Text


We will be happy to answer your questions!

Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 11:36 #
    Leave a comment if you have any questions about Recovering lost .CSR files after deleting, cleaning or formatting!
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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.


Questions and answers

  • What is a CSR format and why is it important in the context of digital certificates?

    CSR stands for Certificate Signing Request. It is a file format used to request a digital certificate from a Certificate Authority (CA).

    In the context of digital certificates, a CSR contains information about the entity or organization requesting the certificate, such as its name, domain name, and public key. It is generated by the entity that needs the certificate and is then submitted to a CA for verification and signing.

    The CSR format is important because it ensures that the information provided by the entity requesting the certificate is accurate and valid. It helps establish trust between the entity and the CA, as the CA verifies the information in the CSR before issuing the digital certificate. Additionally, the CSR format ensures that the public key included in the certificate matches the private key held by the entity, which is crucial for secure communication and encryption.

  • What are the key components of a CSR format and how do they contribute to the certificate signing process?

    The key components of a CSR (Certificate Signing Request) format are:

    1. Subject: It contains the information about the entity (organization or individual) requesting the certificate, such as common name (CN), organization name, organizational unit, locality, state, and country. The subject helps the certificate authority (CA) verify the identity of the requester.
    2. Public Key: The CSR includes the public key generated by the requester. The public key is used for encryption and verifying digital signatures. The CA uses this public key to encrypt the certificate that will be issued to the requester.
    3. Signature: The CSR is signed using the requester's private key. This signature ensures the integrity and authenticity of the CSR. The CA can verify the signature using the requester's public key.
    4. Extensions: CSR may include extensions that provide additional information or requirements for the certificate. For example, it can specify the key usage, subject alternative names, or certificate policies. These extensions help the CA determine the appropriate settings and restrictions for the certificate.

    These components contribute to the certificate signing process in the following ways:

    1. Identity Verification: The subject information in the CSR allows the CA to verify the identity of the requester. The CA ensures that the requester has the right to request a certificate for the specified entity.
    2. Public Key Generation: The CSR includes the requester's public key, which is used by the CA to encrypt the certificate. The CA ensures that the public key is valid and matches the private key held by the requester.
    3. Signature Verification: The CA verifies the signature of the CSR using the requester's public key. This ensures that the CSR has not been tampered with and that it was indeed signed by the requester.
    4. Certificate Customization: The extensions in the CSR provide additional information and requirements for the certificate. The CA considers these extensions while generating the certificate, ensuring that it meets the specific needs and constraints specified by the requester.

    Overall, the CSR format facilitates the secure and reliable exchange of information between the requester and the CA, enabling the CA to issue a trusted certificate to the requester.

  • Are there different CSR formats for different certificate authorities or can a standard format be used across all providers?

    There is a standard format for Certificate Signing Requests (CSR) that can be used across all Certificate Authorities (CAs). The most commonly used format is the PKCS#10 format, which is a standardized format defined by the Public-Key Cryptography Standards (PKCS) developed by RSA Security.

    The PKCS#10 format includes all the necessary information required by CAs to generate a digital certificate, such as the public key, distinguished name, and any additional attributes. This format is widely supported by most CAs and can be used regardless of the CA you choose.

    However, there might be some minor variations or additional fields that specific CAs may require or support. These additional fields are usually specific to the CA's own policies or requirements. In such cases, the CA will provide guidelines or templates for generating CSRs that comply with their specific requirements.

    In general, using the PKCS#10 format should work across most CAs, but it is always recommended to refer to the specific CA's documentation or guidelines to ensure compliance with their CSR format requirements.

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