Alphabetical order

README.md

@@ -373,14 +373,32 @@ Further reading:
 ---
 
 ### Keystream
+
 See: [Stream cipher](?id=stream-cipher)
 
+---
+
 ### Nonce
 
 > A random or non-repeating value that is included in data exchanged by a protocol, usually for the purpose of guaranteeing the transmittal of live data rather than replayed data, thus detecting and protecting against replay attacks.
 
 "Nonce". [NIST Computer Security Resource Center Glossary](https://csrc.nist.gov/glossary/term/nonce). Accessed 6 February 2024.
 
+---
+
+### Oracle
+
+Defined by Alan Turing in 1938 as "some unspecified means of solving number theoretic problems".
+
+Extending this definition to other problems commonly encountered in cryptography, we may define an _encryption oracle_ as an unspecified means of encrypting data; a _padding oracle_ as an unspecified means of learning whether an encrypted message has valid padding; and a _random oracle_ as an unspecified means of producing a random number.
+
+Further reading:
+  - [Does a cryptographic oracle have to be a server?, StackOverflow](https://crypto.stackexchange.com/questions/88777/does-a-cryptographic-oracle-have-to-be-a-server)
+  - [Oracle machine, Wikipedia](https://en.wikipedia.org/wiki/Oracle_machine#Applications_to_cryptography)
+  - [Turing, Alan. Systems of Logic Based on Ordinals (PDF)](https://www.dcc.fc.up.pt/%7Eacm/turing-phd.pdf)
+
+---
+
 ### Padding
 
 > Oftentimes messages are not an integer multiple of the block size and hence need to be *padded*. The *padding* is typically a map that takes the last partial block of the message ... and maps it into a full block ... The map needs to be invertible which in particular means that if the message is already an integer multiple of the block size we will need to add an extra block.
@@ -440,17 +458,6 @@ Further reading:
   - [random, docs.python.org](https://docs.python.org/3/library/random.html)
   - [Random, ruby-doc.org](https://ruby-doc.org/3.3.0/Random.html)
 
-### Oracle
-
-Defined by Alan Turing in 1938 as "some unspecified means of solving number theoretic problems".
-
-Extending this definition to other problems commonly encountered in cryptography, we may define an _encryption oracle_ as an unspecified means of encrypting data; a _padding oracle_ as an unspecified means of learning whether an encrypted message has valid padding; and a _random oracle_ as an unspecified means of producing a random number.
-
-Further reading:
-  - [Does a cryptographic oracle have to be a server?, StackOverflow](https://crypto.stackexchange.com/questions/88777/does-a-cryptographic-oracle-have-to-be-a-server)
-  - [Oracle machine, Wikipedia](https://en.wikipedia.org/wiki/Oracle_machine#Applications_to_cryptography)
-  - [Turing, Alan. Systems of Logic Based on Ordinals (PDF)](https://www.dcc.fc.up.pt/%7Eacm/turing-phd.pdf)
-
 ### Vigenère cipher
 
 Polyalphabetic substitution cipher invented by Giovan Battista Bellaso in the 16th century, misattributed to Blaise de Vigenère.