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leif-ibsen / SwiftECC

Swift Elliptic Curve Cryptography (ECIES, ECDSA and ECDH)

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ECIES standard

Mtczf opened this issue · comments

commented

Hi，When I use bouncycastle to decrypt on the java side, iOS and java cannot decrypt each other.I want to know whether the ECIES standard in SwiftECC is ANSI X9.63 or IEEE 1363a？

commented

The ECIES algorithm in SwiftECC uses the ANSI-X9.63-KDF key derivation function as it is described in

Standards for Efficient Cryptography 1 (SEC 1), Certicom Corp. 2009 - section 3.6.1

It uses the SHA2-256 message digest and it is compatible with the corresponding functionality in IBM's BlueECC product.
I have not read IEEE 1363a and I don't have access to it.

commented

Thanks for your reply, saw it from the code. I have searched a lot of iOS encryption libraries during this time, but I can't find the same ECIES encryption scheme as java