Yes, DSC Can Be Used for File Encryption

• A Digital Signature Certificate can be used not only for signing but also for encrypting files.
  
• It helps protect sensitive data from unauthorized access.
  
• Encryption ensures that only intended recipients can view the contents.
  
• It provides confidentiality in addition to authenticity.
  
• The encrypted file can only be decrypted using the correct private key.
  

Encryption Using the Public Key

• File encryption is performed using the public key from the DSC.
  
• The recipient’s public key is used to encrypt the file content.
  
• Only the matching private key can decrypt the encrypted data.
  
• This ensures that only the rightful recipient can open the file.
  
• The process prevents interception or tampering during transmission.
  

Secure Data Transmission

• Encrypted files can be safely shared over email or networks.
  
• It protects confidential documents in financial, legal, and business processes.
  
• It helps comply with data privacy regulations and standards.
  
• It adds an extra layer of security for files containing sensitive information.
  
• Encryption can be combined with digital signing for enhanced protection.
  

Software Compatibility and Requirements

• File encryption requires cryptographic software that supports DSC-based encryption.
  
• The DSC must support both signing and encryption functions.
  
• Some certificates are limited to signing only and cannot encrypt.
  
• The software must recognize and validate the certificate’s usage policy.
  
• Encrypted files may require compatible systems or tools for decryption.
  

Certificate Management and Access Control

• Organizations must securely store and manage DSCs used for encryption.
  
• Only authorized personnel should access the private keys.
  
• Backup and recovery procedures must be in place to prevent data loss.
  
• Lost or expired certificates may prevent file access.
  
• Regular audits ensure compliance and secure encryption practices.