Hello Jeffrey, Thank you for your quick answers, now it works fine, although I do not understand what I was doing wrong.
So now I stuck on trying to load ephemeralPublicKey in the Decryptor. While it's mentioned in the Android docs, that they provide it, it's seems to me that it is not actually the key, because of the following code: ECParameterSpec aasymmetricKeyParams = generateECParameterSpec(); KeyFactory asymmetricKeyFactory = KeyFactory.getInstance(ASYMMETRIC_KEY_TYPE, SECURITY_PROVIDER); PublicKey ephemeralPublicKey = asymmetricKeyFactory.generatePublic( new ECPublicKeySpec( ECPointUtil.decodePoint(asymmetricKeyParams.getCurve(), ephemeralPublicKeyBytes), asymmetricKeyParams)); But even if I will succeed with generating it out of EC type (I should use CryptoPP::ASN1::secp256r1() I guess) and the provided ephemeralPublicKeyBytes, it's still not clear for me, how to provide this information to the Decryptor. It seems to me that we get ephemeralPublicKey here. https://github.com/weidai11/cryptopp/blob/master/pubkey.h#L1668 But I have no idea how to store it there.. also rather confusing that we call params.DecodeElement(ciphertext, true). It would be great if you could point me to the right direction. четверг, 3 марта 2016 г., 4:48:06 UTC+1 пользователь Jeffrey Walton написал: > > > I'm trying to use cryptopp for implementing small lib which will allow me >> to integrate with Android Pay. >> > > As you work through issues, I'm going to be adding it to our ECIES page at > http://cryptopp.com/wiki/Elliptic_Curve_Integrated_Encryption_Scheme#Android_Pay_Example > > This is the sort of thing I'd like to see well documented. > > I also reached out to the Bouncy Castle folks. We are on the same page > ECIES and interop, so they can ensure their library works with the Android > Pay example, too. > > Jeff > > -- -- 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. --- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
