Sha256: da1f61def96886319e7ce94593ea8ca181ba93becae7e4d704772f59ab4a5fe7
Contents?: true
Size: 857 Bytes
Versions: 5
Compression:
Stored size: 857 Bytes
Contents
# frozen_string_literal: true
module Noise
module Functions
module Cipher
class ChaChaPoly
def encrypt(k, n, ad, plaintext)
@cipher = RbNaCl::AEAD::ChaCha20Poly1305IETF.new(String.new(k).force_encoding('ASCII-8BIT'))
@cipher.encrypt(nonce_to_bytes(n), plaintext, ad)
rescue ::RbNaCl::CryptoError => e
raise Noise::Exceptions::EncryptError.new(e)
end
def decrypt(k, n, ad, ciphertext)
@cipher = RbNaCl::AEAD::ChaCha20Poly1305IETF.new(String.new(k).force_encoding('ASCII-8BIT'))
@cipher.decrypt(nonce_to_bytes(n), ciphertext, ad)
rescue ::RbNaCl::CryptoError => e
raise Noise::Exceptions::DecryptError.new(e)
end
def nonce_to_bytes(n)
"\x00" * 4 + format('%16x', n).htb.reverse
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems