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openssl dgst

 
OpenSSL command to generate digest values and perform signature operations. More information: https://www.openssl.org/docs/manmaster/man1/openssl-dgst.html.
 
  • Calculate the SHA256 digest for a file, saving the result to a specific file:
     
    openssl dgst -sha256 -binary -out {{output_file}} {{input_file}}
     
  • Sign a file using an RSA key, saving the result to a specific file:
     
    openssl dgst -sign {{private_key_file}} -sha256 -sigopt rsa_padding_mode:pss -out {{output_file}} {{input_file}}
     
  • Verify an RSA signature:
     
    openssl dgst -verify {{public_key_file}} -signature {{signature_file}} -sigopt rsa_padding_mode:pss {{signature_message_file}}
     
  • Sign a file using and ECDSA key:
     
    openssl dgst -sign {{private_key_file}} -sha256 -out {{output_file}} {{input_file}}
     
  • Verify an ECDSA signature:
     
    openssl dgst -verify {{public_key_file}} -signature {{signature_file}} {{signature_message_file}}

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