The purpose of an encryption algorithm is to secure information by transforming it into a format that is unreadable without the appropriate decryption key. This process ensures the confidentiality and integrity of sensitive data, protecting it from unauthorized access. Encryption algorithms use mathematical techniques to encode data, making it difficult for attackers to decipher the content even if they intercept it. Common examples include AES (Advanced Encryption Standard) and RSA (Rivest-Shamir-Adleman). Effective encryption is essential for safeguarding communications, banking transactions, and personal information in today’s digital landscape.