cmd/openssl

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Revision as of 01:28, 12 April 2012 by Woozle (talk | contribs) (more commands and examples)
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About

openssl is the command-line program for managing SSL data and certificates.

Examples

  • To verify how a web server is presenting its certificate over https:
    openssl s_client -connect vbz.net:443
  • To generate a new private key:
    openssl genrsa -des3 -out filename.key 4096
  • To remove the pass phrase from a private key:
    openssl rsa -in oldfile.key -out newfile.key
    There is slightly more explanation here.

Notes

  • openssl verify [1] seems to be the tool of choice for checking certificate files stored locally.
  • This also has some useful information about using openssl, and a little bit about the "chaining" concept.

Links

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