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mdc2 (1)
  • >> mdc2 (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • mdc2 (3) ( Solaris man: Библиотечные вызовы )
  • mdc2 (3) ( Linux man: Библиотечные вызовы )


    dgst, md5, md4, md2, sha1, sha, mdc2, ripemd160 - message digests


    openssl dgst [-md5|-md4|-md2|-sha1|-sha|-mdc2|-ripemd160|-dss1] [-c] [-d] [-hex] [-binary] [-out filename] [-sign filename] [-passin arg] [-verify filename] [-prverify filename] [-signature filename] [file...]

    [md5|md4|md2|sha1|sha|mdc2|ripemd160] [-c] [-d] [file...]  


    The digest functions output the message digest of a supplied file or files in hexadecimal form. They can also be used for digital signing and verification.  


    print out the digest in two digit groups separated by colons, only relevant if hex format output is used.
    print out BIO debugging information.
    digest is to be output as a hex dump. This is the default case for a ``normal'' digest as opposed to a digital signature.
    output the digest or signature in binary form.
    -out filename
    filename to output to, or standard output by default.
    -sign filename
    digitally sign the digest using the private key in ``filename''.
    -passin arg
    the private key password source. For more information about the format of arg see the PASS PHRASE ARGUMENTS section in openssl(1).
    -verify filename
    verify the signature using the the public key in ``filename''. The output is either ``Verification OK'' or ``Verification Failure''.
    -prverify filename
    verify the signature using the the private key in ``filename''.
    -signature filename
    the actual signature to verify.
    -rand file(s)
    a file or files containing random data used to seed the random number generator, or an EGD socket (see RAND_egd(3)). Multiple files can be specified separated by a OS-dependent character. The separator is ; for MS-Windows, , for OpenVMS, and : for all others.
    file or files to digest. If no files are specified then standard input is used.


    The digest of choice for all new applications is SHA1. Other digests are however still widely used.

    If you wish to sign or verify data using the DSA algorithm then the dss1 digest must be used.

    A source of random numbers is required for certain signing algorithms, in particular DSA.

    The signing and verify options should only be used if a single file is being signed or verified.




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