HOUSE_OVERSIGHT_015905.jpg
1.5 MB
Extraction Summary
3
People
3
Organizations
1
Locations
1
Events
0
Relationships
3
Quotes
Document Information
Type:
Book excerpt / evidence production
File Size:
1.5 MB
Summary
This document appears to be page 215 of a text titled 'Turing's Machine,' which discusses the history and theory of cryptography, specifically focusing on the Enigma machine, Bletchley Park, and unbreakable codes like one-time pads and quantum cryptography. The document bears the Bates stamp 'HOUSE_OVERSIGHT_015905,' indicating it was included in a larger production of evidence to the House Oversight Committee, likely within an investigation related to Epstein, though the text itself is educational in nature and does not name Epstein directly.
People (3)
| Name | Role | Context |
|---|---|---|
| George | Hypothetical Cipher Key |
Used as an example of an easily remembered name for a cipher key.
|
| Commandant | Hypothetical Role |
Mentioned in the context of guessing a password based on a dog's name.
|
| First Mate | Hypothetical Role |
Used in a complex cipher example regarding his mother's maiden name.
|
Organizations (3)
| Name | Type | Context |
|---|---|---|
| British government |
Mentioned as employing people to break codes during war.
|
|
| Bletchley Park |
Location where 10,000 people were employed to decrypt messages.
|
|
| House Oversight Committee |
Implied by the Bates stamp 'HOUSE_OVERSIGHT'.
|
Timeline (1 events)
WWII Era (Historical Context)
Code breaking activities involving the Enigma machine.
Bletchley Park
British government
Bletchley Park staff
Locations (1)
| Location | Context |
|---|---|
|
Historical site of codebreaking.
|
Key Quotes (3)
"The British government employed 10,000 people at Bletchley Park, many of them doing exactly this."Source
HOUSE_OVERSIGHT_015905.jpg
Quote #1
"The Enigma machine and the coding process set up to operate it was designed to remove these loopholes."Source
HOUSE_OVERSIGHT_015905.jpg
Quote #2
"The answer is there are two ways to code a message so it is PERFECTLY safe. The first is to use a one-time pad and the second is quantum cryptography."Source
HOUSE_OVERSIGHT_015905.jpg
Quote #3
Full Extracted Text
Complete text extracted from the document (2,315 characters)
Turing’s Machine
215
215
The advantage of this cipher is that I can easily remember the name George. I don’t need to write it down. And the circular application makes the message sufficiently obscure you can’t easily work it out...
Is this, therefore, a good code?
No.
This cipher is easy to break. Once you have guessed that I have applied a repeated short code word, you can write out ALL the possibilities and decrypt my message! This may be tedious, but if you are fighting a war and your life depends on it, you can employ a thousand people to write them all out. The British government employed 10,000 people at Bletchley Park, many of them doing exactly this. You might think that applying ALL the possibilities is too time consuming in practice but there are many shortcuts. If I suspect the message contains the name of a German town all I need do is try keys until I find a German town somewhere in the message then work my way outwards from there. Or perhaps I suspect the key is something easy to remember like the name of the Commandant’s dog. I can try ALL German dog names until I get lucky. If I’ve 10,000 people working for me this is easy.
The Enigma machine and the coding process set up to operate it was designed to remove these loopholes. For a start, the keys were all random numbers taken from a code book – no dog names allowed – and the machine took the idea of a simple progressive cipher and made it much more complex.
Imagine I took my GeorgeGeorgeGeorge pattern but then every 3rd character added one, every 14th character subtracted 15 and every 40th character added the 3rd letter of the First Mate’s mother’s maiden name. Now this would be a VERY hard code to break. I would need a machine to code messages because if I tried to do it by hand I would make so many mistakes that the messages I send would be unintelligible. The Enigma machine made these coding schemes a practical possibility. But, although Enigma is hard to break it is not impossible with enough computing power. Is there any code that is impossible to break?
Is this, therefore, a good code?
No.
This cipher is easy to break. Once you have guessed that I have applied a repeated short code word, you can write out ALL the possibilities and decrypt my message! This may be tedious, but if you are fighting a war and your life depends on it, you can employ a thousand people to write them all out. The British government employed 10,000 people at Bletchley Park, many of them doing exactly this. You might think that applying ALL the possibilities is too time consuming in practice but there are many shortcuts. If I suspect the message contains the name of a German town all I need do is try keys until I find a German town somewhere in the message then work my way outwards from there. Or perhaps I suspect the key is something easy to remember like the name of the Commandant’s dog. I can try ALL German dog names until I get lucky. If I’ve 10,000 people working for me this is easy.
The Enigma machine and the coding process set up to operate it was designed to remove these loopholes. For a start, the keys were all random numbers taken from a code book – no dog names allowed – and the machine took the idea of a simple progressive cipher and made it much more complex.
Imagine I took my GeorgeGeorgeGeorge pattern but then every 3rd character added one, every 14th character subtracted 15 and every 40th character added the 3rd letter of the First Mate’s mother’s maiden name. Now this would be a VERY hard code to break. I would need a machine to code messages because if I tried to do it by hand I would make so many mistakes that the messages I send would be unintelligible. The Enigma machine made these coding schemes a practical possibility. But, although Enigma is hard to break it is not impossible with enough computing power. Is there any code that is impossible to break?
An Unbreakable code
Is there a way of coding a message so you can never break it?
The answer is there are two ways to code a message so it is PERFECTLY safe. The first is to use a one-time pad and the second is quantum cryptography.
Is there a way of coding a message so you can never break it?
The answer is there are two ways to code a message so it is PERFECTLY safe. The first is to use a one-time pad and the second is quantum cryptography.
HOUSE_OVERSIGHT_015905
Discussion 0
No comments yet
Be the first to share your thoughts on this epstein document