[Perl-openssl-users] Using Crypt::OpenSSL::RSA for fast encryption of arbitrary length strings

[Struan B. <str...@Ne...>]

Hi,

I don't know if I'm supposed to subscribe to this list before posting to 
it. If so, I'm sorry.

I'm looking for a Perl solution for fast encryption of arbitrary length 
strings. As I understand it Crypt::OpenSSL::RSA encrypts only up to 
keysize-42 or keysize-11 byte strings (depending on padding method). 
I've got an algorithm in perl that breaks up an arbitrary length string 
into these chunk sizes, encrypts them separately, then concatenates them 
again. Problem is, it's for encrypting very large (> 100Mb) data files, 
and as it stands it's very slow indeed.

Please could anyone advise me whether Crypt::OpenSSL::RSA encryption is 
actually appropriate for encrypting large strings like this? If so, is 
it an option to extend Crypt::OpenSSL::RSA by implementing this routine 
in C? If not, does there already exist an alternative solution? I've 
looked also at Crypt::RSA but it requires rather too many module 
dependencies for my liking.

I would be very grateful for any assistance offered.

Best regards,

Struan Bartlett

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