Sha256: c2fe9ea4f225636d05086a1b4998448a880502350b720bd834c3ea0b43e63bb4
Contents?: true
Size: 618 Bytes
Versions: 6
Compression:
Stored size: 618 Bytes
Contents
# frozen_string_literal: true
require 'aead'
module Noise
module Functions
module Cipher
class AesGcm
def encrypt(k, n, ad, plaintext)
mode = AEAD::Cipher.new('AES-256-GCM')
cipher = mode.new(k)
cipher.encrypt(nonce_to_bytes(n), ad, plaintext)
end
def decrypt(k, n, ad, ciphertext)
mode = AEAD::Cipher.new('AES-256-GCM')
cipher = mode.new(k)
cipher.decrypt(nonce_to_bytes(n), ad, ciphertext)
end
def nonce_to_bytes(n)
"\00" * 4 + format('%16x', n).htb
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems