From 345c3ed57574c9d2534a3fcafb5ef4f19d20ee0a Mon Sep 17 00:00:00 2001 From: Kristofers Solo Date: Thu, 10 Apr 2025 17:44:13 +0300 Subject: [PATCH] Initial commit --- .gitignore | 1 + README.md | 93 ++++++++++++++++++++++++++++++++++ bibliography.yml | 5 ++ main.md | 93 ++++++++++++++++++++++++++++++++++ main.typ | 127 +++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 319 insertions(+) create mode 100644 .gitignore create mode 100644 README.md create mode 100644 bibliography.yml create mode 100644 main.md create mode 100644 main.typ diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea8c4bf --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/target diff --git a/README.md b/README.md new file mode 100644 index 0000000..26fe68b --- /dev/null +++ b/README.md @@ -0,0 +1,93 @@ +Network Working Group []{.box} T. Developer\ +Internet Engineering Task Force (IETF) []{.box} (Your Organization)\ +Request for Comments: XXXX []{.box} (Your Email)\ +Category: Informational []{.box} (Today's Date) + +[RFC SULA-ALUS: A REVERSAL ENCRYPTION ALGORITHM]{align="center"} + +# Status of This Memo + +This memo provides information for the Internet community. It does not +specify an Internet standard of any kind. Distribution of this memo is +unlimited. + +# Abstract + +This document describes the SULA-ALUS encryption algorithm---a +lightweight, reversible transformation whose principal operation is to +reverse the input plaintext. The algorithm's name pays homage to the +Latvian wordplay where reversing "sula" gives "alus." Although trivial +in its operation, this algorithm may serve educational, demonstrative, +or low-risk obfuscation purposes. + +# Introduction + +The SULA-ALUS algorithm is founded on a straightforward principle: +encryption is performed by reversing the order of characters (or bytes) +of the input data. While the transformation is simple and not intended +for modern security-critical applications, it can be useful in contexts +where a reversible obfuscation method is acceptable or for educational +purposes. + +# Conventions Used in This Document + +The key words "MUST," "SHOULD," and "MAY" are to be interpreted as +described in RFC 2119 [@rfc-2119]. + +# The Reversal Encryption Algorithm + +The core idea behind SULA-ALUS is that the encryption operation is +identical to the decryption operation -- they both consist of reversing +the input sequence. + +## Encryption Process + +Let $P$ represent the plaintext composed of a sequence of characters: +$$P = p_{1},p_{2},\ldots,p_{n}$$ + +The ciphertext $C$ is produced by applying the reversal transformation: +$$C = \text{ reverse}(P) = p_{n},p_{n - 1},\ldots,p_{1}$$ For example, +if $P = \text{ sula}$, then: $$C = \text{ alus }$$ + +## Decryption Process + +Given that the reversal operation is an involution (its own inverse), +the decryption process involves applying the same transformation. Let +$C$ be the ciphertext; then the plaintext $P$ is recovered as: +$$P = \text{ reverse}(C)$$ + +# Implementation Considerations + +A simple pseudocode implementation of the algorithm is as follows: + + function encrypt(plaintext): + return reverse(plaintext) + + function decrypt(ciphertext): + return reverse(ciphertext) + +This algorithm may be implemented in any programming language. It is +important to note that due to its simplicity, SULA-ALUS is only +appropriate for applications where robust cryptographic security is not +a requirement. + +# Security Considerations + +The SULA-ALUS algorithm offers minimal protection and should not be used +as a substitute for established cryptographic methods. Its reversible +nature and lack of key-dependent randomness make it vulnerable to +trivial analysis and brute-force reversal. Users are cautioned against +employing this algorithm in scenarios where the confidentiality or +integrity of sensitive data is paramount. + +# IANA Considerations + +This document has no actions for the Internet Assigned Numbers Authority +(IANA). + +# Acknowledgments + +The authors thank the community for insights into minimalist +cryptographic mechanisms and for inspiring creative approaches that +celebrate cultural references---in this case, the reversal of the +Latvian word "sula" to "alus." diff --git a/bibliography.yml b/bibliography.yml new file mode 100644 index 0000000..5b8ef0a --- /dev/null +++ b/bibliography.yml @@ -0,0 +1,5 @@ +rfc-2119: + type: Book + title: Key words for use in RFCs to Indicate Requirement Levels + author: S. Bradner + date: 1997-03 diff --git a/main.md b/main.md new file mode 100644 index 0000000..26fe68b --- /dev/null +++ b/main.md @@ -0,0 +1,93 @@ +Network Working Group []{.box} T. Developer\ +Internet Engineering Task Force (IETF) []{.box} (Your Organization)\ +Request for Comments: XXXX []{.box} (Your Email)\ +Category: Informational []{.box} (Today's Date) + +[RFC SULA-ALUS: A REVERSAL ENCRYPTION ALGORITHM]{align="center"} + +# Status of This Memo + +This memo provides information for the Internet community. It does not +specify an Internet standard of any kind. Distribution of this memo is +unlimited. + +# Abstract + +This document describes the SULA-ALUS encryption algorithm---a +lightweight, reversible transformation whose principal operation is to +reverse the input plaintext. The algorithm's name pays homage to the +Latvian wordplay where reversing "sula" gives "alus." Although trivial +in its operation, this algorithm may serve educational, demonstrative, +or low-risk obfuscation purposes. + +# Introduction + +The SULA-ALUS algorithm is founded on a straightforward principle: +encryption is performed by reversing the order of characters (or bytes) +of the input data. While the transformation is simple and not intended +for modern security-critical applications, it can be useful in contexts +where a reversible obfuscation method is acceptable or for educational +purposes. + +# Conventions Used in This Document + +The key words "MUST," "SHOULD," and "MAY" are to be interpreted as +described in RFC 2119 [@rfc-2119]. + +# The Reversal Encryption Algorithm + +The core idea behind SULA-ALUS is that the encryption operation is +identical to the decryption operation -- they both consist of reversing +the input sequence. + +## Encryption Process + +Let $P$ represent the plaintext composed of a sequence of characters: +$$P = p_{1},p_{2},\ldots,p_{n}$$ + +The ciphertext $C$ is produced by applying the reversal transformation: +$$C = \text{ reverse}(P) = p_{n},p_{n - 1},\ldots,p_{1}$$ For example, +if $P = \text{ sula}$, then: $$C = \text{ alus }$$ + +## Decryption Process + +Given that the reversal operation is an involution (its own inverse), +the decryption process involves applying the same transformation. Let +$C$ be the ciphertext; then the plaintext $P$ is recovered as: +$$P = \text{ reverse}(C)$$ + +# Implementation Considerations + +A simple pseudocode implementation of the algorithm is as follows: + + function encrypt(plaintext): + return reverse(plaintext) + + function decrypt(ciphertext): + return reverse(ciphertext) + +This algorithm may be implemented in any programming language. It is +important to note that due to its simplicity, SULA-ALUS is only +appropriate for applications where robust cryptographic security is not +a requirement. + +# Security Considerations + +The SULA-ALUS algorithm offers minimal protection and should not be used +as a substitute for established cryptographic methods. Its reversible +nature and lack of key-dependent randomness make it vulnerable to +trivial analysis and brute-force reversal. Users are cautioned against +employing this algorithm in scenarios where the confidentiality or +integrity of sensitive data is paramount. + +# IANA Considerations + +This document has no actions for the Internet Assigned Numbers Authority +(IANA). + +# Acknowledgments + +The authors thank the community for insights into minimalist +cryptographic mechanisms and for inspiring creative approaches that +celebrate cultural references---in this case, the reversal of the +Latvian word "sula" to "alus." diff --git a/main.typ b/main.typ new file mode 100644 index 0000000..fe498a3 --- /dev/null +++ b/main.typ @@ -0,0 +1,127 @@ +#let fill = box(width: 1fr, repeat(sym.space)) + + +#set heading(numbering: "1.1.") +#show heading: set text(12pt) + +#show outline.entry: it => link( + it.element.location(), + it.indented(it.prefix(), it.body()), +) + + +#set par(justify: true) + +Network Working Group #fill T. Developer \ +Internet Engineering Task Force (IETF) #fill (Your Organization) \ +Request for Comments: XXXX #fill (Your Email) \ +Category: Informational #fill (Today’s Date) + + +#align( + center, + upper( + text( + 14pt, + "RFC SULA-ALUS: A Reversal Encryption Algorithm", + ), + ), +) + +#heading("Status of This Memo", numbering: none, outlined: false) + +This memo provides information for the Internet community. It does not +specify an Internet standard of any kind. Distribution of this memo is +unlimited. + +#heading("Abstract", numbering: none, outlined: false) + +This document describes the SULA-ALUS encryption algorithm—a lightweight, +reversible transformation whose principal operation is to reverse the input +plaintext. The algorithm’s name pays homage to the Latvian wordplay where +reversing "sula" gives "alus." +Although trivial in its operation, this algorithm may serve educational, +demonstrative, or low-risk obfuscation purposes. + + + +#outline( + depth: 3, + title: "Table of Contents", +) + += Introduction + +The SULA-ALUS algorithm is founded on a straightforward principle: encryption is +performed by reversing the order of characters (or bytes) of the input data. +While the transformation is simple and not intended for modern security-critical +applications, it can be useful in contexts where a reversible obfuscation method +is acceptable or for educational purposes. + += Conventions Used in This Document + +The key words "MUST," "SHOULD," and "MAY" are to be interpreted as described in +RFC 2119 @rfc-2119. + += The Reversal Encryption Algorithm + +The core idea behind SULA-ALUS is that the encryption operation is identical to +the decryption operation -- they both consist of reversing the input sequence. + +== Encryption Process + +Let $P$ represent the plaintext composed of a sequence of characters: +$ P = p_1, p_2, ..., p_n $ + +The ciphertext $C$ is produced by applying the reversal transformation: +$ C = "reverse"(P) = p_n, p_(n-1), ..., p_1 $ +For example, if $P = "sula"$, then: +$ C = "alus" $ + +== Decryption Process + +Given that the reversal operation is an involution (its own inverse), the +decryption process involves applying the same transformation. +Let $C$ be the ciphertext; then the plaintext $P$ is recovered as: +$ P = "reverse"(C) $ + += Implementation Considerations + +A simple pseudocode implementation of the algorithm is as follows: + +``` +function encrypt(plaintext): +return reverse(plaintext) + +function decrypt(ciphertext): +return reverse(ciphertext) +``` + +This algorithm may be implemented in any programming language. +It is important to note that due to its simplicity, SULA-ALUS is only +appropriate for applications where robust cryptographic security is not a +requirement. + += Security Considerations + +The SULA-ALUS algorithm offers minimal protection and should not be used as a +substitute for established cryptographic methods. Its reversible nature and lack +of key-dependent randomness make it vulnerable to trivial analysis and +brute-force reversal. Users are cautioned against employing this algorithm in +scenarios where the confidentiality or integrity of sensitive data is paramount. + += IANA Considerations + +This document has no actions for the Internet Assigned Numbers Authority (IANA). + += Acknowledgments + +The authors thank the community for insights into minimalist cryptographic +mechanisms and for inspiring creative approaches that celebrate cultural +references—in this case, the reversal of the Latvian word "sula" to "alus." + + +#bibliography( + title: "References", + "bibliography.yml", +)