mirror of https://github.com/CrimsonTome/tldr.git
25 lines
927 B
Markdown
25 lines
927 B
Markdown
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# openssl dgst
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> OpenSSL command to generate digest values and perform signature operations.
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> More information: <https://www.openssl.org/docs/manmaster/man1/openssl-dgst.html>.
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- Calculate the SHA256 digest for a file, saving the result to a specific file:
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`openssl dgst -sha256 -binary -out {{output_file}} {{input_file}}`
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- Sign a file using an RSA key, saving the result to a specific file:
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`openssl dgst -sign {{private_key_file}} -sha256 -sigopt rsa_padding_mode:pss -out {{output_file}} {{input_file}}`
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- Verify an RSA signature:
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`openssl dgst -verify {{public_key_file}} -signature {{signature_file}} -sigopt rsa_padding_mode:pss {{signature_message_file}}`
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- Sign a file using and ECDSA key:
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`openssl dgst -sign {{private_key_file}} -sha256 -out {{output_file}} {{input_file}}`
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- Verify an ECDSA signature:
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`openssl dgst -verify {{public_key_file}} -signature {{signature_file}} {{signature_message_file}}`
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