External hardware for SSL handshake (overriding PreMasterSecret decrypt)

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On 27/05/2015 15:26, Pavel Abramov wrote:
> Hi,
>
> I have a task to use external Security Module to perform RSA functions in my WEB-server (nginx/httpd using OpenSSL for HTTPS).
> The goal is to store Server private key components and establish SSL Handshake using Hardware module. It is not an SSL hardware accelerator.
>
> This device has proprietary API (binary protocol over TCP/UDP, a few commands like "generate RSA key pair", "premaster decrypt using key#123").
>
> What is the easiest way to do it? Will be very grateful for keywords/advices.
> Should I write my ENGINE ? Or is there any other way?
>
> I need only 2 functions to perform using hardware:
> - RSA key generation (private component will be saved in hardware module)
> - PreMaster decrypt from client during SSL handshake
>
> How to override only these 2 functions?
If there is a generic engine wrapping pkcs11 or a similar
API, it may or may not be easier to implement (or reuse
if already provided) a hardware specific pkcs11 (or
similar) driver.

I am unsure if there is or is not a well maintained
pkcs11 engine for OpenSSL, either in the OpenSSL project
or elsewhere.  Maybe the opensc project has one, but I
don't know if that would be general or specific to opensc
pkcs11 drivers.

Keywords to search for:
pkcs11, pkcs11 engine, opensc project, openssl engine.

Enjoy

Jakob
-- 
Jakob Bohm, CIO, Partner, WiseMo A/S.  http://www.wisemo.com
Transformervej 29, 2860 S?borg, Denmark.  Direct +45 31 13 16 10
This public discussion message is non-binding and may contain errors.
WiseMo - Remote Service Management for PCs, Phones and Embedded

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