[openssl-users] Better understanding of EC encryption API

Tim Hudson tjh at cryptsoft.com
Fri Nov 27 09:28:36 UTC 2015

On 27/11/2015 8:26 AM, Jan Danielsson wrote:
> On 26/11/15 20:18, Matt Loah wrote:
>> While the public key in the context of OpenSSL Elliptic Curves algorithm is
>> stored as a EC_POINT pointer... and the private key as a BIGNUM pointer...
>> which functions (or which kind of them) should be called to encrypt & to
>> decrypt a message in C/C++ ?
>    OpenSSL doesn't support it out of the box.  What you're looking for
> is something akin to
> https://en.wikipedia.org/wiki/Integrated_Encryption_Scheme.
>    Ladar Levison has written an implementation which uses OpenSSL as a
> backend.  I tried finding it for you, but my connection (mobile, on
> train) is so bad that I couldn't be bothered to keep trying.



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