Scatter/Gather IO support in openssl crypto library

[Muhammed Shafeek Fazal]

Hi,
I'm developing a security product and in the process of selecting the crypto
library.
Can anyone please answer the following queries.
1. Does openssl crypto library supports scatter/gather I/O. The requirement
is to pass bsdnet mbuf cluster to the openssl crypto library for
encryption/decryption?
2. Does openssl crypto library supports non-blocking calls?

Thanks in advance
Shafeek