Matthew and Richard are friends located in different physical locations who would like to begin communicating with each other using cryptography to protect the confidentiality of their communications. They exchange digital certificates to begin this process and plan to use an asymmetric encryption algorithm for the secure exchange of email messages. Matthew would like to enhance the security of his communication by adding a digital signature to the message. What goal of cryptography are digital signatures intended to enforce?

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Q: Any multifactor authentication examples? Complex passwords have any benefits?

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Q: Can desktop applications generate secure secret keys for cryptographic protocols?

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Cryptography

Cryptography is a term used in computer science to describe secure information and communication techniques that transform messages in difficult-to-decipher ways using mathematical concepts and a set of rule-based calculations known as algorithms.