Final answer:
Encryption algorithms are the methods and designs of ciphers used to convert plaintext into ciphertext, ensuring that data is protected and can only be accessed by those with the decryption key.
Step-by-step explanation:
When we say that encryption algorithms are the overall designs of the ciphers themselves, we are referring to the systematic method that these algorithms use to convert plaintext data into ciphertext to prevent unauthorized access. These algorithms apply a set of cryptographic techniques to ensure that only those with the right decryption key can revert the ciphertext back to its original form. Common examples of encryption algorithms include AES (Advanced Encryption Standard), DES (Data Encryption Standard), and RSA (Rivest–Shamir–Adleman).
Each encryption algorithm has a unique design and operates based on principles like substitution, transposition, and mathematical functions that are hard to reverse without a key. The strength of the encryption depends on the complexity of the algorithm and the length of the key. The primary objective is to maintain data security and protect information from potential cyber threats.