Doing a DH key exchange between OpenSSL and MS CryptoAPI

[Edward Chan]

Has anybody done this?  I can get it to work when both ends are the
same.  But I can't do it when they are different.  I also notice the
public key computed by CryptoAPI is 16 bytes larger than that computed
by OpenSSL which I assume is due to some hdr information in the KEYBLOB
that MS generates?  Does anyone have any experience with CryptoAPI and
getting it to work with OpenSSL?

Thanks in advance,
Ed