encryption_decryption.rb

# require 'encryption'

# def encrypt(input)
#     encryptor = Encryption::Symmetric.new
#     # 256-bit encryption key - AES (Symmetric)
#     encryptor.key = '7w!z%C*F)J@NcRfUjXn2r5u8x/A?D(G+'
#     encryptor.iv = 'Xn2r5u8x/A?D(G+K'
#     encrypted_str = nil
#     if input.is_a?(Array)
#         encrypted_list = input.map{|item| encryptor.encrypt(item)}
#         return encrypted_list
#     else
#         encrypted_str = encryptor.encrypt(input)
#         return encrypted_str
#     end
# end

# def decrypt(input)
#     encryptor = Encryption::Symmetric.new
#     # 256-bit encryption key - AES (Symmetric)
#     encryptor.key = '7w!z%C*F)J@NcRfUjXn2r5u8x/A?D(G+'
#     encryptor.iv = 'Xn2r5u8x/A?D(G+K'
#     encrypted_str = nil
#     if input.is_a?(Array)
#         decrypted_list = input.map{|item| encryptor.decrypt(item)}
#         return decrypted_list
#     else
#         decrypted_str = encryptor.decrypt(input)
#         return decrypted_str
#     end
# end

require 'symmetric-encryption'

def encrypt(input)
    SymmetricEncryption.cipher = SymmetricEncryption::Cipher.new(
        key:         '7w!z%C*F)J@NcRfU',
        iv:          'Xn2r5u8x/A?D(G+K',
        cipher_name: 'aes-128-cbc'
    )
    encrypted_str = nil
    if input.is_a?(Array)
        encrypted_list = input.map{|item| SymmetricEncryption.encrypt(item)}
        return encrypted_list
    else
        encrypted_str = encrypted = SymmetricEncryption.encrypt(input)
        return encrypted_str
    end
end

text = 'This is a sample piece of text'
encrypted = encrypt(text)
puts encrypted