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Which encryption method is used when the sender and receiver use an instance of the same key for encryption and decryption purposes?
Diffusion
Asymmetric algorithm
Symmetric algorithm
Block cipher
A symmetric algorithm is used where the sender and receiver are using instances of the same key for encryption and decryption purposes. Asymmetric algorithms use different key types both public and private. Block ciphers are a symmetric algorithm that encrypts chunks of data at a time. Diffusion is used in encryption to increase randomness.
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