n.密碼術(shù)；密碼系統(tǒng)

Digital signatures rely on public key cryptography. 數(shù)字簽名依賴于公共密鑰加密學(xué)。

Cryptography is rapidly becoming a critical part of our daily life. 密碼術(shù)正在迅速成為我們?nèi)粘Ｉ钪械囊粋€(gè)重要部分。

In cryptography, we also need to discuss modular logarithm. 在密碼學(xué)中，我們也需要討論模對(duì)數(shù)。