Cryptography - Revision history

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‎Resources

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‎Solutions

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‎Machines

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‎Solutions

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‎Context

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‎Resources

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‎Full Title

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‎Context

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‎Full Title

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‎Resources

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 ==Resources==
 * [https://asecuritysite.com/encryption/ Bill's crypto page] has a broad list of crypto methods.
 * The core proof is describe on the wiki page [[Indistinguishability Obfuscation]].

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 ===Machines===
-Caesar had a Cryptographic machine. It was a cylindrical rod that was used for character by character substitution. Machines got more sophisticated over time, the deign of the Enigma machine was emblematic of the top-of-the-line machine. It has a typewriter input and a light indicating the substitution character to send. This design had several weakness, many can from known plain text attacks. The design was patented in the US by Arthur Scherbius in 1929.  From that time on the machine designs were themselves a closely guarded secret. Since the Second World War nearly all machines are just computer programs, some of which run in HSMs or [[Trusted Execution Environment]]s.
+Caesar had a Cryptographic machine. It was a cylindrical rod that was used for character by character substitution. Machines got more sophisticated over time, the deign of the Enigma machine was emblematic of the top-of-the-line machine. It has a typewriter input and a light indicating the substitution character to send. This design had several weakness, many can from known plain text attacks. The design was patented in the US by Arthur Scherbius in 1929.  From that time on the machine designs were themselves a closely guarded secret. Since the Second World War nearly all machines are just computer programs, some of which run in [[Hardware Protection]] of some form as a [[Trusted Execution Environment]] (TEE) either generally or specially as in a trusted platform module (TPM) or a hardware security module (HSM).
 ==Resources==

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 *  Thus any solution that depends on cryptography for security must be designed to allow new algorithms to be swapped out as old ones are solved or bugs are discovered.
-==Machines==
+===Machines===
-Caesar had a Cryptographic machine. It was a cylindrical rod that was used for character by character substitution. Machines got more sophisticated over time, the deign of the Enigma machine was emblematic of the top-of-the-line machine. It has a typewriter input and a light indicating the substitution character to send. This design had several weakness, many can from known plain text attacks. The design was patented in the US by Arthur Scherbius in 1929.  From that time on the machine designs were themselves a closely guarded secret.
+Caesar had a Cryptographic machine. It was a cylindrical rod that was used for character by character substitution. Machines got more sophisticated over time, the deign of the Enigma machine was emblematic of the top-of-the-line machine. It has a typewriter input and a light indicating the substitution character to send. This design had several weakness, many can from known plain text attacks. The design was patented in the US by Arthur Scherbius in 1929.  From that time on the machine designs were themselves a closely guarded secret. Since the Second World War nearly all machines are just computer programs, some of which run in HSMs or [[Trusted Execution Environment]]s.
 ==Resources==

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 * Most programmatic solutions are not sufficiently robust to fend off attacks by determined adversaries. Bugs and new attacks are a fact of life.
 *  Thus any solution that depends on cryptography for security must be designed to allow new algorithms to be swapped out as old ones are solved or bugs are discovered.
 ==Resources==

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 ==Context==
-* [[Cryptography]] literally means Secret Writing and was use by Caesar in his communications from the Gallic wars. Since then it has become a category of mathematics dealing with methods that are easy to invoke and difficult to discover.  Commercial [[Cryptography]]  is involved in:
+* [[Cryptography]] literally means Secret Writing and was use by Caesar in his communications from the Gallic wars. Since then, it has become a category of mathematics dealing with methods that are easy to invoke and difficult to discover.  Commercial [[Cryptography]] is involved in:
 # protecting data from disclosure (its original purpose) and
 # assuring the source or integrity of messages.
 * Specific details are on the wiki pages [[Secret Key Cryptography]]  and [[Public Key Cryptography]].
 ==Problems==

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 ==Full Title==
-General resource site for [[Cryptography]]. Literally the science of secret writing.
+General resource site for [[Cryptography]], Greek for secret writing.
 ==Context==

← Older revision		Revision as of 14:54, 27 November 2021
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	[[Category: Glossary]]		[[Category: Glossary]]
		+	[[Category: Cryptography]]
	[[Category: Proof]]		[[Category: Proof]]