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Command: Section: Arch: Collection:  
CA.PL(1)                            OpenSSL                           CA.PL(1)

NAME - friendlier interface for OpenSSL certificate programs
libcrypto, -lcrypto
SYNOPSIS [-?] [-h] [-help] [-newcert] [-newreq] [-newreq-nodes] [-newca] [-xsign] [-sign] [-signreq] [-signcert] [-verify] [files]
The script is a perl script that supplies the relevant command line arguments to the openssl command for some common certificate oper- ations. It is intended to simplify the process of certificate creation and management by the use of some simple options.
?, -h, -help prints a usage message. -newcert creates a new self signed certificate. The private key and certifi- cate are written to the file "newreq.pem". -newreq creates a new certificate request. The private key and request are written to the file "newreq.pem". -newreq-nowdes is like -newreq except that the private key will not be encrypted. -newca creates a new CA hierarchy for use with the ca program (or the -signcert and -xsign options). The user is prompted to enter the filename of the CA certificates (which should also contain the pri- vate key) or by hitting ENTER details of the CA will be prompted for. The relevant files and directories are created in a directory called "demoCA" in the current directory. -pkcs12 create a PKCS#12 file containing the user certificate, private key and CA certificate. It expects the user certificate and private key to be in the file "newcert.pem" and the CA certificate to be in the file demoCA/cacert.pem, it creates a file "newcert.p12". This com- mand can thus be called after the -sign option. The PKCS#12 file can be imported directly into a browser. If there is an additional argument on the command line it will be used as the "friendly name" for the certificate (which is typically displayed in the browser list box), otherwise the name "My Certificate" is used. -sign, -signreq, -xsign calls the ca program to sign a certificate request. It expects the request to be in the file "newreq.pem". The new certificate is written to the file "newcert.pem" except in the case of the -xsign option when it is written to standard output. -signCA this option is the same as the -signreq option except it uses the configuration file section v3_ca and so makes the signed request a valid CA certificate. This is useful when creating intermediate CA from a root CA. -signcert this option is the same as -sign except it expects a self signed certificate to be present in the file "newreq.pem". -verify verifies certificates against the CA certificate for "demoCA". If no certificates are specified on the command line it tries to ver- ify the file "newcert.pem". files one or more optional certificate file names for use with the -ver- ify command.
Create a CA hierarchy: -newca Complete certificate creation example: create a CA, create a request, sign the request and finally create a PKCS#12 file containing it. -newca -newreq -signreq -pkcs12 "My Test Certificate"
Although the creates RSA CAs and requests it is still possible to use it with DSA certificates and requests using the openssl_req(1) com- mand directly. The following example shows the steps that would typi- cally be taken. Create some DSA parameters: openssl dsaparam -out dsap.pem 1024 Create a DSA CA certificate and private key: openssl req -x509 -newkey dsa:dsap.pem -keyout cacert.pem -out cacert.pem Create the CA directories and files: -newca enter cacert.pem when prompted for the CA file name. Create a DSA certificate request and private key (a different set of parameters can optionally be created first): openssl req -out newreq.pem -newkey dsa:dsap.pem Sign the request: -signreq
Most of the filenames mentioned can be modified by editing the script. If the demoCA directory already exists then the -newca command will not overwrite it and will do nothing. This can happen if a previous call using the -newca option terminated abnormally. To get the correct be- haviour delete the demoCA directory if it already exists. Under some environments it may not be possible to run the script directly (for example Win32) and the default configuration file loca- tion may be wrong. In this case the command: perl -S can be used and the OPENSSL_CONF environment variable changed to point to the correct path of the configuration file "openssl.cnf". The script is intended as a simple front end for the openssl program for use by a beginner. Its behaviour isn't always what is wanted. For more control over the behaviour of the certificate commands call the openssl command directly.
The variable OPENSSL_CONF if defined allows an alternative configura- tion file location to be specified, it should contain the full path to the configuration file, not just its directory.
openssl_x509(1), openssl_ca(1), openssl_req(1), openssl_pkcs12(1), openssl.cnf(5) 3rd Berkeley Distribution 0.9.7d CA.PL(1)
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