我们的志愿者还没有将这篇文章翻译为 中文 (简体)。加入我们帮助完成翻译！
In cryptography, encryption is the conversion of cleartext into a coded text or ciphertext. A ciphertext is intended to be unreadable by unauthorized readers.
Encryption is a cryptographic primitive: it transforms a plaintext message into a ciphertext using a cryptographic algorithm called a cipher. Encryption in modern ciphers is performed using a specific algorithm and a secret, called the key. Since the algorithm is often public, the key must stay secret if the encryption stays secure.
Without knowing the secret, the reverse operation, decryption, is mathematically hard to perform. How hard depends on the security of the cryptographic algorithm chosen and evolves with the progress of cryptanalysis.
Learn more
- Learn more about Encryption and Decryption