[jira] [Created] (PROTON-1088) Add convenience functions to obtain the client certificate fingerprint, subject subfields

["Ganesh Murthy (JIRA)" <ji...@apache.org>]

Ganesh Murthy created PROTON-1088:
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             Summary: Add convenience functions to obtain the client certificate fingerprint, subject subfields
                 Key: PROTON-1088
                 URL: https://issues.apache.org/jira/browse/PROTON-1088
             Project: Qpid Proton
          Issue Type: Improvement
          Components: proton-c
    Affects Versions: 0.11.1
            Reporter: Ganesh Murthy
            Priority: Minor


1. Provide a convenience function which will return a an ssl certificate fingerprint (a sha1 or sha256 hash of the certificate). 
-- When you look go to a https site via a web browser, you can look at the certificate fingerprint by clicking the View Certificate button on the browser. Add a convenience function to proton which will return the char array of octets. sha1 hashing produces a 20 octet hash and sha256 provides a 32 octet hash. The function signature should approximately look like this - 
void pn_ssl_get_fingerprint(pn_ssl_t \*ssl0, unsigned char \*md, const char* digest_name)

2. The subject field on the SSL cert has many subfields like - 
C = ISO3166 two character country code
ST = state or province
L = Locality; generally means city
O = Organization - Company Name
OU = Organization Unit - division or unit
CN = CommonName - end entity name e.g. www.example.com
Provide convenience functions to obtain values of the above subfields.



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