The useful idea
- Secure communication
Cryptography, or cryptology, is the practice and study of techniques for secure communication in the presence of adversarial behavior.
- Plaintext to ciphertext
converting readable information (plaintext) to unintelligible nonsense text (ciphertext),
- Keys control access
In some jurisdictions where the use of cryptography is legal, laws permit investigators to compel the disclosure of encryption keys for documents relevant to an investigation.
Why this matters
Use Cryptography to recognize risk and choose the safer digital action.
Try this
Use Cryptography to recognize risk and choose the safer digital action.
Test your recall
Which idea belongs to the explanation of Cryptography?
- Keys control access
- Plaintext to ciphertext
- Secure communication — correct
Cryptography, or cryptology, is the practice and study of techniques for secure communication in the presence of adversarial behavior.