Proj_Coconut_Utility

README

Utility for Project Coconut Server/Desktop

log package

Contains simple wrapper methods to support level-based logging.

Usage

import "github.com/jaeha-choi/Proj_Coconut_Utility/log"

// Initialize logger
log.Init(os.Stdout, log.Error) 

log.Debug("Debug msg") // Won't print; Mode is set to log.Error
log.Error(err)

util package

Contains utility methods for sending/receiving packets and defined status codes.

cryptography package

Note: I am not a cryptographer. Use this package at your own risk. If you notice any security issue, please email me.

Provide functions to encrypt/decrypt large files in chunks using AES-GCM and RSA.

Usage

• Encryption (AES-GCM + RSA):

... 
streamEncrypt, err := cryptography.EncryptSetup(testFileN)
// Error handling
err = streamEncrypt.Encrypt(writer, client1PublicKey, client2PrivKey)
// Error handling
err := streamEncrypt.Close()
...

• Decryption (AES-GCM + RSA):

...
streamDecrypt, err := cryptography.DecryptSetup()
// Error handling
err = streamDecrypt.Decrypt(reader, client2PublicKey, client1PrivKey)
// Error handling
err := streamDecrypt.Close()
...

• Encryption (RSA):

cryptography.EncryptSignMsg(msg, client1PublicKey, client2PrivKey)

• Decryption (RSA):

cryptography.DecryptVerifyMsg(encryptedMsg, client2PublicKey, client1PrivKey)

• Open RSA PEM blocks:

pubPem, privPem, err := OpenKeys("./path/to/keys/")

• PEM blocks to PrivateKey struct:

privKey, err := PemToKeys(privPem)

privKey             // Private key
privKey.PublicKey   // Public key