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Cryptography

UK //krɪpˈtɒɡrəfi//US //krɪpˈtɑɡrəfi//

Definition

The practice and study of techniques for securing communication and information.

In simple words: The study of secret writing and codes.

Examples

Cryptography ensures that sensitive data remains secure during transmission.
Many modern applications use cryptography to protect user privacy.
The field of cryptography covers both theoretical and practical aspects.
Advancements in cryptography are crucial for online banking security.
He studied cryptography to understand how messages can be covertly sent.

Usage notes

Used primarily in academic and professional contexts. Avoid in casual conversations unless discussing tech or security.

Grammar pattern

noun + subject

Memory hint

Think of 'crypto' as in 'hidden' and 'graphy' as 'writing' - hidden writing.

Collocations

blockchain cryptography
quantum cryptography
symmetric cryptography
public key cryptography
cryptography techniques

Synonyms

encryption
code-making
ciphering
data security
cryptanalysis

Common mistakes

Confused with 'steganography', which is hiding messages within other data.
Using it as a verb (e.g., 'to cryptography' is incorrect).
Mispronouncing due to the length and complexity of the word.