Merge branch 'master' into workflows

Author: drbruced12

crypto.rst

@@ -429,7 +429,7 @@ reserved for use in authentication and session key establishment.
    today could be stored for a decade or two and then decrypted by a
    future quantum computer, so even data produced today could be at
    risk.
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+   
    The response to this uncertain threat has been to develop suites of
    cryptographic algorithms for which no quantum solution is
    known. This is the field of "Post-Quantum Cryptography". Note the
@@ -446,9 +446,6 @@ reserved for use in authentication and session key establishment.
    change, the requirement for *crypto-agility*—the ability to swap
    out one set of algorithms for another—is now well established.
 
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 3.4 Message Authentication
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@@ -635,7 +632,6 @@ authenticated. We won't go into details here, but there is now a set of
 integrated algorithms that produce both ciphertext and authentication
 codes using a combination of ciphers and hash functions.
 
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 Now that we have seen some of the building blocks for encryption and
 authentication, we have the foundations for building some complete security
 solutions. Before we get to those, however, we address the issue of how participants