Using compression my public keys are still one byte bigger than the private ones. Is there anything I can do to make them smaller? I had a look at D.J. Bernstein's page and his curve 25519 algorithm generates 32byte public and private keys using his compression. Isn't he using 256bit ECC as well? His implementation isn't an option for me since it is totally unportable. Of course one byte isn't a big deal so I'm just curious.
Thanks in advance Elias Code: CryptoPP::AutoSeededRandomPool rng; typedef CryptoPP::ECDH < CryptoPP::ECP >::Domain ECDHDomain; const CryptoPP::OID CURVE = CryptoPP::ASN1::secp256r1(); ECDHDomain alice = ECDHDomain( CURVE ); alice.AccessGroupParameters().SetPointCompression(true); string alice_privKey(alice.PrivateKeyLength(), 0); string alice_pubKey(alice.PublicKeyLength(), 0); alice.GenerateKeyPair (rng, (byte*)alice_privKey.data(), (byte*)alice_pubKey.data()); Output: Alice public key length: 33 Alice private key length: 32 -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to [email protected]. More information about Crypto++ and this group is available at http://www.cryptopp.com.
