This simplifies even further the usage of the NaCl crypto primitives,
by taking care of the nonce part.
It uses a KDF, specifically HKDF to compute the nonces.
The encryption and decryption phases are the following:
Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message
1- Import the library
import github.com/sec51/cryptoengine
2- Instanciate the CryptoEngine object via:
engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}
See the godoc for more info about the InitCryptoEngine parameter
3- Encrypt a message using symmetric encryption
message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}
4- Serialize the message to a byte slice, so that it can be safely sent to the network
messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
}
5- Parse the byte slice back to a message
message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}
Copyright (c) 2015 Sec51.com info@sec51.com
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