openssl-dsa - DSA key processing

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       Licensed under the Apache License 2.0 (the "License").  You may not use this file  except  in  compliance
       with  the  License.   You  can  obtain  a  copy  in  the  file  LICENSE  in the source distribution or at
       <https://www.openssl.org/source/license.html>.

3.4.1                                              2025-04-03                                  OPENSSL-DSA(1SSL)

       This 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

       The documentation for the openssl-pkey(1) command contains examples equivalent to the ones listed here.

       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

       The -engine option was deprecated in OpenSSL 3.0.

       openssl-dsa - DSA key processing

-help
           Print out a usage message.

       -informDER|PEM
           The key input format; unspecified by default.  See openssl-format-options(1) for details.

       -outformDER|PEM
           The key output format; the default is PEM.  See openssl-format-options(1) for details.

           Private  keys  are  a  sequence  of  ASN.1INTEGERS: the version (zero), p, q, g, and the public and
           private key components.  Public keys are a SubjectPublicKeyInfo structure with the DSA type.

           The PEM format also accepts PKCS#8 data.

       -infilename
           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.

       -outfilename
           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.

       -passinarg, -passoutarg
           The password source for the input and output file.  For more information about the format of arg  see
           openssl-passphrase-options(1).

       -aes128, -aes192, -aes256, -aria128, -aria192, -aria256, -camellia128, -camellia192, -camellia256, -des,
       -des3, -idea
           These  options  encrypt the private key with the specified cipher before outputting it. A pass phrase
           is prompted for.  If none of these options is specified the key is written in plain text. This  means
           that  this  command  can  be  used  to remove the pass phrase from a key by not giving any encryption
           option is given, or to add or change the pass phrase by setting them.  These options can only be used
           with PEM format output files.

       -text
           Prints out the public, private key components and parameters.

       -noout
           This option prevents output of the encoded version of the key.

       -modulus
           This option prints out the value of the public key component of the key.

       -pubin
           By default, a private key is read from the input.  With this option a public key is read instead.  If
           the input contains no public key but a private key, its public part is used.

       -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.

       -pvk-strong
           Enable 'Strong' PVK encoding level (default).

       -pvk-weak
           Enable 'Weak' PVK encoding level.

       -pvk-none
           Don't enforce PVK encoding.

       -engineid
           See "Engine Options" in openssl(1).  This option is deprecated.

       -providername-provider-pathpath-propquerypropq
           See "Provider Options" in openssl(1), provider(7), and property(7).

       The  openssl-pkey(1)  command  is  capable  of performing all the operations this command can, as well as
       supporting other public key types.

openssl(1), openssl-pkey(1), openssl-dsaparam(1), openssl-gendsa(1), openssl-rsa(1), openssl-genrsa(1)

openssldsa [-help] [-informDER|PEM] [-outformDER|PEM] [-infilename] [-passinarg] [-outfilename]
       [-passoutarg] [-aes128] [-aes192] [-aes256] [-aria128] [-aria192] [-aria256] [-camellia128]
       [-camellia192] [-camellia256] [-des] [-des3] [-idea] [-text] [-noout] [-modulus] [-pubin] [-pubout]
       [-pvk-strong] [-pvk-weak] [-pvk-none] [-engineid] [-providername] [-provider-pathpath] [-propquerypropq]