LinuxGuruz
  • Last 5 Forum Topics
    Replies
    Views
    Last post


The Web Only This Site
  • BOOKMARK

  • ADD TO FAVORITES

  • REFERENCES


  • MARC

    Mailing list ARChives
    - Search by -
     Subjects
     Authors
     Bodies





    FOLDOC

    Computing Dictionary




  • Text Link Ads






  • LINUX man pages
  • Linux Man Page Viewer


    The following form allows you to view linux man pages.

    Command:

    dsa

    
    
    

    SYNOPSIS

           openssl dsa [-inform PEM|DER] [-outform PEM|DER] [-in filename]
           [-passin arg] [-out filename] [-passout arg] [-des] [-des3] [-idea]
           [-text] [-noout] [-modulus] [-pubin] [-pubout] [-engine id]
    
    
    

    DESCRIPTION

           The dsa command processes DSA keys. They can be converted between
           various forms and their components printed out. Note This command uses
           the traditional SSLeay compatible format for private key encryption:
           newer applications should use the more secure PKCS#8 format using the
           pkcs8
    
    
    

    COMMAND OPTIONS

           -inform DER|PEM
               This specifies the input format. The DER option with a private key
               uses an ASN1 DER encoded form of an ASN.1 SEQUENCE consisting of
               the values of version (currently zero), p, q, g, the public and
               private key components respectively as ASN.1 INTEGERs. When used
               with a public key it uses a SubjectPublicKeyInfo structure: it is
               an error if the key is not DSA.
    
               The PEM form is the default format: it consists of the DER format
               base64 encoded with additional header and footer lines. In the case
               of a private key PKCS#8 format is also accepted.
    
           -outform DER|PEM
               This specifies the output format, the options have the same meaning
               as the -inform option.
    
           -in filename
               This specifies the input filename to read a key from or standard
               input if this option is not specified. If the key is encrypted a
               pass phrase will be prompted for.
    
           -passin arg
               the input file password source. For more information about the
               format of arg see the PASS PHRASE ARGUMENTS section in openssl(1).
    
           -out filename
               This specifies the output filename to write a key to or standard
               output by is not specified. If any encryption options are set then
               a pass phrase will be prompted for. The output filename should not
               be the same as the input filename.
    
           -passout arg
               the output file password source. For more information about the
               format of arg see the PASS PHRASE ARGUMENTS section in openssl(1).
    
           -des|-des3|-idea
               These options encrypt the private key with the DES, triple DES, or
               the IDEA ciphers respectively before outputting it. A pass phrase
               is prompted for.  If none of these options is specified the key is
               key.
    
           -pubin
               by default a private key is read from the input file: with this
               option a public key is read instead.
    
           -pubout
               by default a private key is output. With this option a public key
               will be output instead. This option is automatically set if the
               input is a public key.
    
           -engine id
               specifying an engine (by its unique id string) will cause dsa to
               attempt to obtain a functional reference to the specified engine,
               thus initialising it if needed. The engine will then be set as the
               default for all available algorithms.
    
    
    

    NOTES

           The PEM private key format uses the header and footer lines:
    
            -----BEGIN DSA PRIVATE KEY-----
            -----END DSA PRIVATE KEY-----
    
           The PEM public key format uses the header and footer lines:
    
            -----BEGIN PUBLIC KEY-----
            -----END PUBLIC KEY-----
    
    
    

    EXAMPLES

           To remove the pass phrase on a DSA private key:
    
            openssl dsa -in key.pem -out keyout.pem
    
           To encrypt a private key using triple DES:
    
            openssl dsa -in key.pem -des3 -out keyout.pem
    
           To convert a private key from PEM to DER format:
    
            openssl dsa -in key.pem -outform DER -out keyout.der
    
           To print out the components of a private key to standard output:
    
            openssl dsa -in key.pem -text -noout
    
           To just output the public part of a private key:
    
            openssl dsa -in key.pem -pubout -out pubkey.pem
    
    
    

    SEE ALSO

           dsaparam(1), gendsa(1), rsa(1), genrsa(1)
    
    
  • MORE RESOURCE


  • Linux

    The Distributions





    Linux

    The Software





    Linux

    The News



  • MARKETING






  • Toll Free

webmaster@linuxguruz.com
Copyright © 1999 - 2016 by LinuxGuruz