generate-tweetnacl-keys
This is a CLI utility to generate an x25519 keypair that is compatible for use with tweetnacl
.
Install
$ npm i -g generate-tweetnacl-keys
Usage
Generates two files, public.key.pem
, private.key.pem
$ generate-tweetnacl-keys
Specify the output filenames:
$ generate-tweetnacl-keys --privout private.pem --pubout public.pem
Context
We originally used openssl 1.1.1
to generate the private key via the following command:
openssl genpkey -algorithm X25519 -out private.pem
and extracted the public key with:
openssl pkey -in private.pem -pubout -out public.pem
While the keypair worked in a Java library, it did not with tweetnacl
, as tweetnacl
is expecting a 32-byte length public key,
but the public key in the above example is 44 bytes. We're unsure what the potential differences are after researching online,
and so created this utility to ensure a working set of keys can be generated.
The generated keypair with this utility does work in the Java library we are testing against, along with tweetnacl
.