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[REBOL] Reading encrypted pages with REBOL??? Re:

From: chris::double::tab::co::nz at: 2-Oct-2000 9:30

> IIRC the reason is size of SSL protocol - several times of size of > Core :-) >
Using OpenSSL ( it is not too difficult to add SSL support to an existing sockets package. I added SSL support to my Lisp Socket package in very few lines [1]. This included using SSL through a generic proxy. I've also done the same with Dylan, adding SSL support to the existing Dylan sockets library [2]. If you can call call/link external libraries to include OpenSSL (Rebol/Command for example) you could might be able to add the support yourself in a few hours. Note that I've only done this on Windows - not other OS's - so it may be more involved than that. The basic steps once you've got a socket connected using the standard OS calls were to use the OpenSSL calls: method = sslv23_client_method(); ctx = ssl_ctx_new(method); handle = ssl_new(ctx); ssl_set_fd( handle, socket_descriptor); ssl_connect( handle ); Once the above is done you use the ssl_write and ssl_read functions instead of the OS send and recv functions, passing the 'handle' above, not the socket descriptor: ssl_write(handle, buffer, length); ssl_read(handle, buffer, length); When closing the socket you first need to do some SSL cleanup: ssl_shutdown(handle); closesocket(socket_descriptor); ssl_free(handle); ssl_ctx_free(ctx); That's all there is too it. The source to my Lisp version is at my site if anyone wants to try a REBOL vesion. [1] [2] Chris.