Index for Section 1ssl

Alphabetical listing for D

Bottom of page

dgst(1ssl)
NAME
  dgst, md5, md4, md2, sha1, sha, mdc2, ripemd160 - Message digests

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

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

OPTIONS
  -c	  Prints out the digest in two digit groups separated by colons, only
	  relevant if hex format output is used.

  -d	  Prints out BIO debugging information.

  -hex	  Digest is to be output as a hex dump. This is the default case for
	  a typical digest as opposed to a digital signature.

  -binary Outputs the digest or signature in binary form.

  -out filename
	  Filename to output to, or standard output by default.

  -sign filename
	  Digitally signs the digest using the private key in filename.

  -verifyfilename
	  Verifies the signature using the public key in filename. The output
	  is either Verification OK or Verification Failure.

  -prverify filename
	  Verifies the signature using 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 an OS-dependent character. The
	  separator is a semicolon (;) for MS-Windows, a comma (,) for
	  OpenVMS, and a colon (:) for all others.

  file... File or files to digest. If no files are specified then standard
	  input is used.

DESCRIPTION
  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.

NOTES
  The digest of choice for all new applications is SHA1.  However, other
  digests are 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.

Index for Section 1ssl

Alphabetical listing for D

Top of page