I'm trying to implement a client-server webSocket pair which uses Diffie-Hellman key exchange to establish a common key and sodium.SecretBox/sodium.SecretBoxOpen to encrypt the data between them. The nonce on the server always starts at 0 and increments by 2 and on the client starts at 1 and increments by 2. So on the server the nonce will be 0,2,4,6... and on the client the nonce will be 1,3,5,7...

Is it possible to include sodium_add and perhaps have Nonce implement a Add(size int) function? I am currently calling Next() twice for each nonce and that seems a bit inelegant.

Thank you.

https://github.com/jedisct1/libsodium/releases/tag/1.0.17

Any plans ?

https://github.com/GoKillers/libsodium-go/blob/master/cryptogenerichash/crypto_generichash.go

My Dockerfile:

FROM s390x/golang
WORKDIR /go/src/app
ADD BusinessLogicServices .
RUN apt-get update
RUN apt-get install -y libsodium-dev
RUN go get -d -v ./...
RUN go run -v ./...

inside my BusineesLogicService there is file crypto.go which imports a golang libsodium library
package main

import (
"github.com/jamesruan/sodium"
)

and inside "github.com/jamesruan/sodium" there is file exchange.go which contains following

package sodium

// #cgo pkg-config: libsodium
// #include <stdlib.h>
// #include <sodium.h>
import "C"

var (
cryptoKXPublicKeyBytes = int(C.crypto_kx_publickeybytes())
cryptoKXSecretKeyBytes = int(C.crypto_kx_secretkeybytes())
cryptoKXSeedBytes = int(C.crypto_kx_seedbytes())
cryptoKXSessionKeyBytes = int(C.crypto_kx_sessionkeybytes())
)

output of docker build -t abc .
Step 7/7 : RUN go run -v ./...
---> Running in a805355aaa6a
../github.com/jamesruan/sodium/exchange.go:9:32: could not determine kind of name for C.crypto_kx_publickeybytes

HOST OS = Ubuntu 18.04

docker version:
Client:
Version: 17.12.1-ce
API version: 1.35
Go version: go1.10.1
Git commit: 7390fc6
Built: Wed Apr 18 01:22:24 2018
OS/Arch: linux/s390x

Server:
Engine:
Version: 18.06.1-ce
API version: 1.38 (minimum version 1.12)
Go version: go1.10.4
Git commit: e68fc7a
Built: Mon Oct 1 14:06:53 2018
OS/Arch: linux/s390x
Experimental: false

If i run it without docker containers then it works.

can you please add test code ?

thanks !

If the remote ends encrypts a 0 byte plain text (yielding just the 16 cryptoSecretBoxMacBytes bytes), this happens:

panic: runtime error: index out of range

goroutine 1 [running]:
github.com/jamesruan/sodium.Bytes.SecretBoxOpen(0xc42008a3e0, 0x10, 0x10, 0xc4200a20e0, 0x18, 0x20, 0xc4200a4030, 0x20, 0x21, 0xc4200a2120, ...)
	/Users/peter/go/src/github.com/jamesruan/sodium/secretbox.go:69 +0x26f

To make sure I wasn't doing anything weird, I tested golang.org/x/crypto/nacl/secretbox which correctly gives me zero bytes.

commit ba4580b963e28a6914afc33c847b183070030dfb (HEAD -> master, tag: 1.0.12, origin/master, origin/HEAD)

Unless I've missed it, functionality outlined at https://download.libsodium.org/doc/secret-key_cryptography/secretstream is missing.

e.g. crypto_secretstream_xchacha20poly1305_init_push(), crypto_secretstream_xchacha20poly1305_push()

Getting following error while compiling:

# github.com/jamesruan/sodium
../../../../go/pkg/mod/github.com/jamesruan/[email protected]/support.go:12:8: undefined: GenericHashKey
../../../../go/pkg/mod/github.com/jamesruan/[email protected]/support.go:14:15: undefined: cryptoGenericHashBytesMin
../../../../go/pkg/mod/github.com/jamesruan/[email protected]/support.go:14:42: undefined: cryptoGenericHashBytesMax
../../../../go/pkg/mod/github.com/jamesruan/[email protected]/support.go:16:8: undefined: SubKey
../../../../go/pkg/mod/github.com/jamesruan/[email protected]/support.go:18:15: undefined: CryptoKDFBytesMin
../../../../go/pkg/mod/github.com/jamesruan/[email protected]/support.go:18:34: undefined: CryptoKDFBytesMax

Using libsodium 1.0.18