A total of seven messages are required in the Public-Key distribution scenario. However, the initial five messages need to be used only infrequently because both A and B can save the other’s public key for future – a technique known as ____________(a) time stamping(b) polling(c) caching(d) squeezingThe question was posed to me during an interview.My doubt is from Overview in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

A total of seven messages are required in the Public-Key distribution

1.	A total of seven messages are required in the Public-Key distribution scenario. However, the initial five messages need to be used only infrequently because both A and B can save the other’s public key for future – a technique known as ____________(a) time stamping(b) polling(c) caching(d) squeezingThe question was posed to me during an interview.My doubt is from Overview in section Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security
Answer» Correct CHOICE is (c) caching To EXPLAIN: This technique is known as caching.

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