neilalexander / jnacl Goto Github PK

When calling crypto_box_keypair(pk, sk), two non-random byte arrays are populated for pk (some deterministic series of bytes that do not use SecureRandom) and sk (all zeros).

It is quite exciting to an open-source implementation of curve25519 encryption, thanks a lot to the authors. However, in this implementation, I could not find any function that does raw encryption using only the public key, nor raw decryption using only the private key.

The key idea of asymmetric cryptography is the ability to distribute only the public key and allow the public side to only encrypt but not decrypt. However, for the Box(private_key, public_key) method, you need to distribution both the public and private key, in this way the other party can use it to both encrypt and decrypt, so information is no longer secure, defeating the core purpose of asymmetric cryptography.

there is no getRole() method in Nacl.java

I am wondering how curve25519 is implemented, but without any notes, I just can not understand it at all. anyone can shed some lights on it?

Hi!

What do you think about to release it on the public Maven Repository?

Cheers!

File: curve25519xsalsa20poly1305.java line 66. "i" isn't defined in the function or the class, causing the build to fail. I'm not sure how to fix it, but another library I'm using requires this one