Thanks for answer, Chris.

I understand that slow RSA algorithm is not used to encrypt large amounts of data, instead of it symmetric algorithms are used.

But is it the limit of RSA-algorithm or only OpenSSL library's limit?
------------------------------------------------------------------------------------------------------------
From: Chris Dodd
Sent: Monday, June 27, 2011 8:36 PM

Roughly keysize - paddingsize is the limit.  keysize in your case is 512
bytes and padding size for OAEP padding (the common standard) is ~41, so
the limit is about 471 bytes.

Usually when encrypting a file, you use a symmetric cipher with a
randomly chosen key, and then encrypt the key with RSA and prepend that
to the encrypted file.


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