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PKEYPARAM(1) OpenSSL PKEYPARAM(1) NAME openssl-pkeyparam, pkeyparam - public key algorithm parameter processing tool LIBRARY libcrypto, -lcrypto SYNOPSIS openssl pkeyparam [-help] [-in filename] [-out filename] [-text] [-noout] [-engine id] [-check] DESCRIPTION The pkeyparam command processes public key algorithm parameters. They can be checked for correctness and their components printed out. OPTIONS -help Print out a usage message. -in filename This specifies the input filename to read parameters from or standard input if this option is not specified. -out filename This specifies the output filename to write parameters to or standard output if this option is not specified. -text Prints out the parameters in plain text in addition to the encoded version. -noout Do not output the encoded version of the parameters. -engine id Specifying an engine (by its unique id string) will cause pkeyparam 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. -check This option checks the correctness of parameters. EXAMPLE Print out text version of parameters: openssl pkeyparam -in param.pem -text NOTES There are no -inform or -outform options for this command because only PEM format is supported because the key type is determined by the PEM headers. SEE ALSO genpkey(1), openssl_rsa(1), openssl_pkcs8(1), openssl_dsa(1), openssl_genrsa(1), openssl_gendsa(1) COPYRIGHT Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (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>. 1.1.1 2018-09-17 PKEYPARAM(1)