ciphertext

/ˈsaɪfərˌtɛkst/
noun
  1. Data that has been encoded or encrypted so that it cannot be read without a special key or code.
    • Without the decryption key, the ciphertext looks like random letters and numbers.
    • The spy sent the message as ciphertext to keep it secret from enemies.
    • Modern encryption software converts your email into ciphertext before sending it over the internet.
Antonyms
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