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Full Discussion: Extract Common Name (CN) of SSL certificate using perl code
Top Forums Programming Extract Common Name (CN) of SSL certificate using perl code Post 302833699 by jhamaks on Wednesday 17th of July 2013 04:31:14 PM
Old 07-17-2013
Extract Common Name (CN) of SSL certificate using perl code
Hello folks,

I need a piece of code in perl which can read the file having multiple ssl certificates in text format one after the other as shown below. I need to parse this file and find out the common names of each of ssl certs it contains.

E.g.
Code:
-----BEGIN CERTIFICATE-----
MIID2TCCAsGgAwIBAgIDAjbQMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT
MRYwFAYDVQQKEw1HZW9UcnVzdCBJbmMuMRswGQYDVQQDExJHZW9UcnVzdCB
                             :
                             :
4NwdzxoQ2KDLX4z6DOW/cf/lXUQdpj6HR/oaToODEj+IZpWYeZqF6wJHzSXj8gYE
TpnKXKBuervdo5AaRTPvvz7SBMS24CqFZUE+ENQ=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIDVDCCAjygAwIBAgIDAjRWMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT
                              :
                              :
                              :
hw4EbNX/3aBd7YdStysVAq45pmp06drE57xNNB6pXE0zX5IJL4hmXXeXxx12E6nV
5fEWCRE11azbJHFwLJhWC9kXtNHjUStedejV0NxPNO3CBWaAocvmMw==
-----END CERTIFICATE-----

 

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LEARN ABOUT DEBIAN

ssl_ctx_add_extra_chain_cert

SSL_CTX_add_extra_chain_cert(3SSL)				      OpenSSL					SSL_CTX_add_extra_chain_cert(3SSL)

NAME

       SSL_CTX_add_extra_chain_cert - add certificate to chain

SYNOPSIS

	#include <openssl/ssl.h>

	long SSL_CTX_add_extra_chain_cert(SSL_CTX ctx, X509 *x509)

DESCRIPTION

       SSL_CTX_add_extra_chain_cert() adds the certificate x509 to the certificate chain presented together with the certificate. Several
       certificates can be added one after the other.

NOTES

       When constructing the certificate chain, the chain will be formed from these certificates explicitly specified. If no chain is specified,
       the library will try to complete the chain from the available CA certificates in the trusted CA storage, see
       SSL_CTX_load_verify_locations(3).

RETURN VALUES

       SSL_CTX_add_extra_chain_cert() returns 1 on success. Check out the error stack to find out the reason for failure otherwise.

SEE ALSO

       ssl(3), SSL_CTX_use_certificate(3), SSL_CTX_set_client_cert_cb(3), SSL_CTX_load_verify_locations(3)

1.0.1e								    2013-02-11					SSL_CTX_add_extra_chain_cert(3SSL)
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