class RbNaCl::Boxes::Sealed

def open(ciphertext)

Returns:
  • (String) - The decrypted message (BINARY encoded)

Raises:
  • (RbNaCl::CryptoError) - If the ciphertext cannot be authenticated.
  • (RbNaCl::CryptoError) - If no private key is available.

Parameters:
  • ciphertext (String) -- The message to be decrypted. 
def open(ciphertext)
  raise CryptoError, "Decryption failed. No private key." unless @private_key
  ct = ciphertext
  raise CryptoError, "Decryption failed. Ciphertext failed verification." if ct.bytesize < SEALBYTES
  message = Util.zeros(ct.bytesize - SEALBYTES)
  success = self.class.box_seal_open(message, ct, ct.bytesize, @public_key.to_s, @private_key.to_s)
  raise CryptoError, "Decryption failed. Ciphertext failed verification." unless success
  message
end