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Full Discussion: Writing to a Serial Port
Top Forums Web Development Writing to a Serial Port Post 302920201 by wisecracker on Wednesday 8th of October 2014 02:55:39 AM
Old 10-08-2014
Perhaps if you walk before running we might be able to solve your problem(s) as you have asked a near identical question here:-

Reading data from a serial port
 

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EFIKEYGEN(1)						      General Commands Manual						      EFIKEYGEN(1)

NAME
efikeygen - command line tool for generating keys to use for PE image signing SYNOPSIS
efikeygen <[--ca | -C] [--self-sign | -S] | [--signer=nickname]> [--token=token | -t token] [--nickname=nickname | -n nickname] [--common-name=common name | -c common name] [--url=url | -u url] [--serial=serial | -s serial] DESCRIPTION
efikeygen is a command line tool for generating keys and certificates to be used with pesign. These are standard X.509 certificates, and can potentially be generated with any certificate creation tool. efikeygen simply sets generates keys with sensible options set for a key to be used for PE image signing. OPTIONS
--ca The certificate being generated is for a CA. --self-sign The generated certificate is to be self signed. --signer=nickname Nickname of certificate to be used to sign the generated certificate. --token=token Use the specified NSS token's certificate database. --nickname=nickname The nickname to use for the generated certificate. --common-name=common-name The X.509 Common Name for the generated certificate. This should be in rfc2253 syntax, i.e. "CN=John Doe,OU=editing,O=New York Times,L=New York,ST=NY,C=US" --url=url Informational url regarding objects signed with this key. --serial=serial number Serial number for use with this key. A certificate is identified by its signer and its serial number, so it's best not to ever re- use this value with the same signer. SEE ALSO
pesign(1) AUTHORS
Peter Jones Mon Jan 07 2013 EFIKEYGEN(1)
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