Cryptography, public key and private key

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SUMMARY

In cryptography, Alice encrypts a message for Bob using his public key, which is issued by Bob. Bob then uses his private key to decrypt the message. This asymmetric encryption method ensures that only Bob can read the message sent by Alice, maintaining confidentiality and security in communication.

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  • Understanding of asymmetric encryption
  • Familiarity with public key infrastructure (PKI)
  • Knowledge of cryptographic algorithms
  • Basic concepts of digital signatures
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  • Research the RSA algorithm for public key encryption
  • Explore the role of Certificate Authorities in PKI
  • Learn about the Diffie-Hellman key exchange method
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fisico30
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Hello Forum,

If Alice wants to send a secret message to Bob, she has to encrypt it first to keep the message secure.

Who issues the public key in this case and who uses the private key?

thanks
fisico30
 
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Have you checked usual sources, like wikipedia? Or any pages shown by Google when you search for "public key" or "private key"?
 

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