Class: Lightning::Onion::ChaCha20::OpenSSL

Inherits:
Object
  • Object
show all
Defined in:
lib/lightning/onion/chacha20/openssl.rb

Class Method Summary collapse

Class Method Details

.chacha20_encrypt(key, counter, nonce, plaintext) ⇒ Object 



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# File 'lib/lightning/onion/chacha20/openssl.rb', line 7

def self.chacha20_encrypt(key, counter, nonce, plaintext)
  cipher = ::OpenSSL::Cipher.new("ChaCha20")
  cipher.encrypt
  cipher.iv = [counter].pack('V*') + nonce
  cipher.key = key
  cipher.update(plaintext) + cipher.final
end