NaCl test Go and Python

.gitignore

/message_*
/.vscode

.python-version

3.8.5

alice.go

package main

import (
	"crypto/ed25519"
	"crypto/rand"
	"fmt"
	"io/ioutil"
	"os"

	"github.com/jorrizza/ed2curve25519"
	"golang.org/x/crypto/nacl/box"
)

func main() {
	aliceEd25519Seed := make([]byte, ed25519.SeedSize)
	bobEd25519Seed := make([]byte, ed25519.SeedSize)

	f, err := os.Open("key_alice")
	if err != nil {
		panic(err)
	}
	if _, err := f.Read(aliceEd25519Seed); err != nil {
		panic(err)
	}
	if err := f.Close(); err != nil {
		panic(err)
	}

	f, err = os.Open("key_bob")
	if err != nil {
		panic(err)
	}
	if _, err := f.Read(bobEd25519Seed); err != nil {
		panic(err)
	}
	if err := f.Close(); err != nil {
		panic(err)
	}

	ed25519PrivateKey := ed25519.NewKeyFromSeed(aliceEd25519Seed)
	ed25519PublicKey := ed25519PrivateKey.Public().(ed25519.PublicKey)
	curve25519PrivateKey := ed2curve25519.Ed25519PrivateKeyToCurve25519(ed25519PrivateKey)
	curve25519PublicKey := ed2curve25519.Ed25519PublicKeyToCurve25519(ed25519PublicKey)

	alicePrivateKey, alicePublicKey := new([32]byte), new([32]byte)
	bobPrivateKey, bobPublicKey := new([32]byte), new([32]byte)

	copy(alicePrivateKey[:], curve25519PrivateKey)
	copy(alicePublicKey[:], curve25519PublicKey)

	ed25519PrivateKey = ed25519.NewKeyFromSeed(bobEd25519Seed)
	ed25519PublicKey = ed25519PrivateKey.Public().(ed25519.PublicKey)
	curve25519PrivateKey = ed2curve25519.Ed25519PrivateKeyToCurve25519(ed25519PrivateKey)
	curve25519PublicKey = ed2curve25519.Ed25519PublicKeyToCurve25519(ed25519PublicKey)

	copy(bobPrivateKey[:], curve25519PrivateKey)
	copy(bobPublicKey[:], curve25519PublicKey)

	message := []byte("kill all humans!")

	encrypted, _ := box.SealAnonymous(nil, message, bobPublicKey, rand.Reader)

	f, err = os.Create("message_bob")
	if err != nil {
		panic(err)
	}
	if _, err := f.Write(encrypted); err != nil {
		panic(err)
	}
	if err := f.Close(); err != nil {
		panic(err)
	}

	encryptedForMe, err := ioutil.ReadFile("message_alice")
	if err != nil {
		return
	}

	decrypted, ok := box.OpenAnonymous(nil, encryptedForMe, alicePublicKey, alicePrivateKey)
	if !ok {
		fmt.Println("Could not decrypt message_alice")
	} else {
		fmt.Printf("Message: %s\n", decrypted)
	}
}

bob.py

#!/usr/bin/env python

import sys
from nacl.signing import SigningKey
from nacl.public import PrivateKey, Box, SealedBox
from nacl.encoding import HexEncoder

f = open('key_alice', 'rb')
key_alice = f.read(32)
f.close()

f = open('key_bob', 'rb')
key_bob = f.read(32)
f.close()

ed25519_private_key = SigningKey(key_alice)
ed25519_public_key = ed25519_private_key.verify_key
curve25519_private_key = ed25519_private_key.to_curve25519_private_key()
curve25519_public_key = ed25519_public_key.to_curve25519_public_key()

alice_private_key = curve25519_private_key
alice_public_key = alice_private_key.public_key
bob_private_key = SigningKey(key_bob).to_curve25519_private_key()
bob_public_key = bob_private_key.public_key

message = b"kill all humans!"

alice_box = SealedBox(alice_public_key)
encrypted = alice_box.encrypt(message)

f = open('message_alice', 'wb+')
f.write(encrypted)
f.close()

try:
    f = open('message_bob', 'rb')
except:
    exit(0)

encrypted_for_me = f.read()
f.close()

bob_box = SealedBox(bob_private_key)
decrypted = bob_box.decrypt(encrypted_for_me)

print(f"Message: {decrypted.decode()}")

key_alice

œ’„?ŽÌÂZ"HŸÎ®»¢f0KXoxR^Ï„C À@]

key_bob

”?ÚWŔ°
ý#đö…é“
#a~?˘”mwĘh

Makefile

.PHONY: all

all:
	go run alice.go
	pipenv run ./bob.py

Pipfile

[[source]]
name = "pypi"
url = "https://pypi.org/simple"
verify_ssl = true

[dev-packages]

[packages]
pynacl = "*"

[requires]
python_version = "3.8"

Pipfile.lock

{
    "_meta": {
        "hash": {
            "sha256": "f6549c07d210669ae5c4392ab30909ae0081667ab7fff27fc45d4ba601ac602a"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.8"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "cffi": {
            "hashes": [
                "sha256:005f2bfe11b6745d726dbb07ace4d53f057de66e336ff92d61b8c7e9c8f4777d",
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                "sha256:0b1ad452cc824665ddc682400b62c9e4f5b64736a2ba99110712fdee5f2505c4",
                "sha256:0ef488305fdce2580c8b2708f22d7785ae222d9825d3094ab073e22e93dfe51f",
                "sha256:15f351bed09897fbda218e4db5a3d5c06328862f6198d4fb385f3e14e19decb3",
                "sha256:22399ff4870fb4c7ef19fff6eeb20a8bbf15571913c181c78cb361024d574579",
                "sha256:23e5d2040367322824605bc29ae8ee9175200b92cb5483ac7d466927a9b3d537",
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                "sha256:2f9674623ca39c9ebe38afa3da402e9326c245f0f5ceff0623dccdac15023e05",
                "sha256:3363e77a6176afb8823b6e06db78c46dbc4c7813b00a41300a4873b6ba63b171",
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                "sha256:3b8eaf915ddc0709779889c472e553f0d3e8b7bdf62dab764c8921b09bf94522",
                "sha256:3cb3e1b9ec43256c4e0f8d2837267a70b0e1ca8c4f456685508ae6106b1f504c",
                "sha256:3eeeb0405fd145e714f7633a5173318bd88d8bbfc3dd0a5751f8c4f70ae629bc",
                "sha256:44f60519595eaca110f248e5017363d751b12782a6f2bd6a7041cba275215f5d",
                "sha256:4d7c26bfc1ea9f92084a1d75e11999e97b62d63128bcc90c3624d07813c52808",
                "sha256:529c4ed2e10437c205f38f3691a68be66c39197d01062618c55f74294a4a4828",
                "sha256:6642f15ad963b5092d65aed022d033c77763515fdc07095208f15d3563003869",
                "sha256:85ba797e1de5b48aa5a8427b6ba62cf69607c18c5d4eb747604b7302f1ec382d",
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                "sha256:b0358e6fefc74a16f745afa366acc89f979040e0cbc4eec55ab26ad1f6a9bfbc",
                "sha256:bbd2f4dfee1079f76943767fce837ade3087b578aeb9f69aec7857d5bf25db15",
                "sha256:bf39a9e19ce7298f1bd6a9758fa99707e9e5b1ebe5e90f2c3913a47bc548747c",
                "sha256:c11579638288e53fc94ad60022ff1b67865363e730ee41ad5e6f0a17188b327a",
                "sha256:c150eaa3dadbb2b5339675b88d4573c1be3cb6f2c33a6c83387e10cc0bf05bd3",
                "sha256:c53af463f4a40de78c58b8b2710ade243c81cbca641e34debf3396a9640d6ec1",
                "sha256:cb763ceceae04803adcc4e2d80d611ef201c73da32d8f2722e9d0ab0c7f10768",
                "sha256:cc75f58cdaf043fe6a7a6c04b3b5a0e694c6a9e24050967747251fb80d7bce0d",
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                "sha256:e66399cf0fc07de4dce4f588fc25bfe84a6d1285cc544e67987d22663393926d",
                "sha256:f0620511387790860b249b9241c2f13c3a80e21a73e0b861a2df24e9d6f56730",
                "sha256:f4eae045e6ab2bb54ca279733fe4eb85f1effda392666308250714e01907f394",
                "sha256:f92cdecb618e5fa4658aeb97d5eb3d2f47aa94ac6477c6daf0f306c5a3b9e6b1",
                "sha256:f92f789e4f9241cd262ad7a555ca2c648a98178a953af117ef7fad46aa1d5591"
            ],
            "version": "==1.14.3"
        },
        "pycparser": {
            "hashes": [
                "sha256:2d475327684562c3a96cc71adf7dc8c4f0565175cf86b6d7a404ff4c771f15f0",
                "sha256:7582ad22678f0fcd81102833f60ef8d0e57288b6b5fb00323d101be910e35705"
            ],
            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
            "version": "==2.20"
        },
        "pynacl": {
            "hashes": [
                "sha256:06cbb4d9b2c4bd3c8dc0d267416aaed79906e7b33f114ddbf0911969794b1cc4",
                "sha256:11335f09060af52c97137d4ac54285bcb7df0cef29014a1a4efe64ac065434c4",
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                "sha256:537a7ccbea22905a0ab36ea58577b39d1fa9b1884869d173b5cf111f006f689f",
                "sha256:54e9a2c849c742006516ad56a88f5c74bf2ce92c9f67435187c3c5953b346505",
                "sha256:757250ddb3bff1eecd7e41e65f7f833a8405fede0194319f87899690624f2122",
                "sha256:7757ae33dae81c300487591c68790dfb5145c7d03324000433d9a2c141f82af7",
                "sha256:7c6092102219f59ff29788860ccb021e80fffd953920c4a8653889c029b2d420",
                "sha256:8122ba5f2a2169ca5da936b2e5a511740ffb73979381b4229d9188f6dcb22f1f",
                "sha256:9c4a7ea4fb81536c1b1f5cc44d54a296f96ae78c1ebd2311bd0b60be45a48d96",
                "sha256:c914f78da4953b33d4685e3cdc7ce63401247a21425c16a39760e282075ac4a6",
                "sha256:cd401ccbc2a249a47a3a1724c2918fcd04be1f7b54eb2a5a71ff915db0ac51c6",
                "sha256:d452a6746f0a7e11121e64625109bc4468fc3100452817001dbe018bb8b08514",
                "sha256:ea6841bc3a76fa4942ce00f3bda7d436fda21e2d91602b9e21b7ca9ecab8f3ff",
                "sha256:f8851ab9041756003119368c1e6cd0b9c631f46d686b3904b18c0139f4419f80"
            ],
            "index": "pypi",
            "version": "==1.4.0"
        },
        "six": {
            "hashes": [
                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
            ],
            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
            "version": "==1.15.0"
        }
    },
    "develop": {}
}