Secure and efficient covert communication for blockchain-integrated SAGINs

Security and Privacy for Space-Air-Ground Integrated Networks

Open Access

Table 2.

Comparison

Scheme	No key management issue	No ciphertext leakage	Low costs
[41]	Private key	INPUT field	NO
30	Private key	Signature	YES
44	Private key and secret key	NO	NO
CC-BSAGINs	NO	NO	YES

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