Dear friends,
I am looking for optimizing the SSL_write() and SSL_read()
operation on an embedded platform.
Below is the setup currently I have
1. Hardware OpenSSL engine library for the platform is present for
carrying out any HW AES encryption and AES decryption functionality
2. The platform requires data to be present in the specific HW memory
range before the HW encryption or decryption API be called from the HW OpenSSL
engine.
3. The application calls SSL_read(pSSL, pbuf, num); and SSL_wirte(pSSL,
pbuf, num);
4. If we pass a pointer "pbuf" from the HW memory range, we observe the
buffer pointer pbuf is not passed to the HW OpenSSL engine, but some other
intermediate buffer pointer is getting passed.
5. We are now copying the data from the intermediate buffer passed to the
HW OpenSSL engine into the HW memory range for doing the encryption or
decryption. And copying back the data from the HW memory range into the
intermediate buffer passed to the HW openssl engine.
Is there a way I can force the OpenSSL to pass the required buffer pointer to
HW OpenSSL engine to avoid any memcpy in the HW OpenSSL engine.
Appreciate any help on this.
Regards,
Jagan
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