Definition of "cryptography" [cryp•tog•ra•phy]

The process or skill of communicating in or deciphering secret writings or ciphers. (noun)
Secret writing. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "cryptography" in a sentence

"“The cryptography is simply not fit for purpose,” security consultant Adam Laurie told the Telegraph."
"He also relates his subsequent work in cryptography with Steve Pohlig (the Pohlig-Hellman system) and others."
"This approach is the brainchild of Silvio Micali, a professor at the Massachusetts Institute of Technology, and his colleague Ronald L. Rivest, a professor who is well known in cryptography circles as one of the technologists behind the creation of RSA Security, a global Internet security company."

Words like "cryptography"

anticryptography asymmetric cryptography cipher crypt

cryptanalysis cryptographic cryptology cryptosystem

decryption encryption public-key cryptography science

scientific discipline steganography