![]() The digest mechanisms that are available will depend on the options used when building Openssl dgst -sha256 -verify publickey.pem \ Openssl dgst -sha256 -sign privatekey.pem -out signature.sign file.txt To sign a file using SHA-256 with binary file output: To create a hex-encoded message digest of a file: If no files are specified then standard input is used. When used with the -engine option, it specifies to also use engine id for digestįile or files to digest. This engine is not usedĪs source for digest algorithms, unless it is also specified in the configuration file Use engine id for operations (including private key storage). The separator is for MS-Windows,, for OpenVMS, and : for allĬompute HMAC using a specific key for certain OpenSSL-FIPS operations. Multiple files can be specified separated by an OS-ĭependent character. Key length mustĬonform to any restrictions of the MAC algorithm for example exactly 32 chars forĪ file or files containing random data used to seed the random number generator, or anĮGD socket (see RAND_egd(3)). Specifies MAC key in hexadecimal form (two hex digits per byte). String length must conform to any restrictions of the MAC algorithm for Specifies MAC key as alphanumeric string (use if key contain printable characters Passes options to MAC algorithm, specified by -mac key. Instance gost-mac algorithm, supported by ccgost engine. (hash-based MAC), but there are other MAC algorithms which are not based on hash, for Verify the signature using the private key in "filename".Ĭreate MAC (keyed Message Authentication Code). "Verification OK" or "Verification Failure". Verify the signature using the public key in "filename". PASS PHRASE ARGUMENTS section in openssl(1). For more information about the format of arg see the Values of these options are algorithm-specific. Pass options to the signature algorithm during sign or verify operations. Specifies the key format to sign digest with. r Output the digest in the "coreutils" format used by programs like sha1sum.įilename to output to, or standard output by default.ĭigitally sign the digest using the private key in "filename". Output the digest or signature in binary form. See NOTES below for digital signatures using -hex. This is the default case for a "normal" digestĪs opposed to a digital signature. c Print out the digest in two digit groups separated by colons, only relevant if hexĭigest is to be output as a hex dump. ![]() Specifies name of a supported digest to be used. To see the list of supported algorithms, use the list -digest-commands command. A supported digest name may also be used as the command ![]() The generic name, dgst, may be used with an option specifying the algorithm to be used. The digest functions also generate and verify digital signatures using message digests. The digest functions output the message digest of a supplied file or files in hexadecimal. Provided by: openssl_1.1.0g-2ubuntu4_amd64 ![]()
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