[
    {
        "standard_alphabet": "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
        "reversed_alphabet": "ZYXWVUTSRQPONMLKJIHGFEDCBA",
        "substitution_alphabet": "RFDJUHABCEGIKLMNOPQSTVWXYZ",
        "min_length": 5,
        "max_length": 10,
        "encrypt_probability": 0.7
    },
    {
        "standard_alphabet": "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
        "reversed_alphabet": "ZYXWVUTSRQPONMLKJIHGFEDCBA",
        "substitution_alphabet": "RFDJUHABCEGIKLMNOPQSTVWXYZ",
        "min_length": 4,
        "max_length": 6,
        "encrypt_probability": 0.3
    }
]