openssl dgst

all

Generate digest values and perform signature operations.

Examples (5)

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