Final answer:
The main problems with the one-time pad are key distribution and key reuse.
Step-by-step explanation:
The one-time pad is a cryptographic technique used to encrypt and decrypt messages.
It is based on using a random key that is as long as the message itself.
However, there are two main problems with the one-time pad:
- Key Distribution: The sender and receiver must have access to an identical copy of the key. This can be challenging when dealing with large amounts of data or when the sender and receiver are in different locations.
- Key Reuse: The key must never be reused, as this can lead to vulnerabilities in the encryption. If the same key is used for multiple messages, an attacker could potentially decipher the messages by comparing the encrypted texts.