Can you modify the encryption specified in §5.2.3.2 mixing in the plaintext so that instead of bi = md(kab|ci-1) we use bi = md(kab|pi-1)? how do you decrypt it? why wouldn't the modified scheme be as secure?

Eva has many contacts on the professional networking site she uses which contacts are considered second degree

You receive an email from an impressive-sounding stranger, professor alexander rothschild renard iii, president of the american institute for scientific political statesmen. he urges you to vote for his presidential candidate choice. this social media red flag is known as

If a client wants to make minor edits, what should he/she use?