Recipe 4.5 Decoding an SSL Certificate

4.5.1 Problem

You want to view information about a given SSL certificate, stored in a PEM file.

4.5.2 Solution

$ openssl x509 -text -in filename Certificate:     Data:         Version: 3 (0x2)         Serial Number:             d0:1e:40:90:00:00:27:4b:00:00:00:01:00:00:00:04         Signature Algorithm: sha1WithRSAEncryption         Issuer: C=US, ST=Utah, L=Salt Lake City, O=Xcert EZ by DST, CN=Xcert EZ by  DST/Email=ca@digsigtrust.com         Validity             Not Before: Jul 14 16:14:18 1999 GMT             Not After : Jul 11 16:14:18 2009 GMT         Subject: C=US, ST=Utah, L=Salt Lake City, O=Xcert EZ by DST, CN=Xcert EZ by  DST/Email=ca@digsigtrust.com ...

4.5.3 Discussion

This is a quick way to learn who issued a certificate, its begin and end dates, and other pertinent details.

4.5.4 See Also

openssl(1).



Linux Security Cookbook
Linux Security Cookbook
ISBN: 0596003919
EAN: 2147483647
Year: 2006
Pages: 247

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