Combine authentication and encryption before sending message Perform

Combine authentication and encryption before sending

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Combine authentication and encryption before sending message Perform authentication before encryption Encrypted version of message need not be stored Plaintext message may be verified directly by a third party without secret key Message could be encrypted to be sent to many different parties: signature remains the same for all of them PGP authentication & confidentiality 8 M Z Sent Source A Destination B KR A EP H ||
Combine authentication and encryption before sending message Perform authentication before encryption Encrypted version of message need not be stored Plaintext message may be verified directly by a third party without secret key Message could be encrypted to be sent to many different parties: signature remains the same for all of them PGP authentication & confidentiality 8 K S M EC Z Sent Source A Destination B KR A EP H ||
Combine authentication and encryption before sending message Perform authentication before encryption Encrypted version of message need not be stored Plaintext message may be verified directly by a third party without secret key Message could be encrypted to be sent to many different parties: signature remains the same for all of them PGP authentication & confidentiality 8 K S M EC Z EP KU B Sent Source A Destination B KR A EP H ||
Combine authentication and encryption before sending message Perform authentication before encryption Encrypted version of message need not be stored Plaintext message may be verified directly by a third party without secret key Message could be encrypted to be sent to many different parties: signature remains the same for all of them PGP authentication & confidentiality 8 K S M EC Z EP || KU B Sent Source A Destination B KR A EP H ||
Combine authentication and encryption before sending message Perform authentication before encryption Encrypted version of message need not be stored Plaintext message may be verified directly by a third party without secret key Message could be encrypted to be sent to many different parties: signature remains the same for all of them PGP authentication & confidentiality 8 K S E KUB [K S ] M EC Z EP || KU B Sent Source A Destination B KR A EP H ||
Combine authentication and encryption before sending message Perform authentication before encryption Encrypted version of message need not be stored Plaintext message may be verified directly by a third party without secret key Message could be encrypted to be sent to many different parties: signature remains the same for all of them PGP authentication & confidentiality 8 K S E KUB [K S ] KR B M EC Z EP || DP KU B Sent Source A Destination B KR A EP H ||
Combine authentication and encryption before sending message Perform authentication before encryption Encrypted version of message need not be stored Plaintext message may be verified directly by a third party without secret key

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