“ROT 1-25 Hash” is a method used to encrypt data by rotating letters in the alphabet by a specified number of positions, ranging from 1 to 25. This form of rotation, or “rotation cipher,” replaces each letter in the plaintext with a letter found by moving a fixed number of places down the alphabet. It is a simple yet effective technique for encoding messages, making it easy to understand and implement. Users can select the rotation value to customize their encryption, allowing for varying levels of security. Though ROT 1-25 is not highly secure by modern standards, it serves as an educational tool for understanding basic cryptography principles.
ROT (Rotation) hashing is a simple letter substitution cipher similar to ROT-13, but instead of rotating by 13 positions, you can rotate the letters in the alphabet by any number from 1 to 25. Each number represents a different rotation value, and it's used to encode and decode text. Here's how ROT 1-25 hashing works:
Encoding (ROT 1-25):
- Start with a piece of text you want to encode.
- Choose a rotation value between 1 and 25.
- For each letter in the text, do the following:
- If it's a lowercase letter (a to z), replace it with the letter rotated by the chosen value, wrapping around if necessary. For example, with a rotation of 1, 'a' becomes 'b', 'b' becomes 'c', and 'z' becomes 'a'.
- If it's an uppercase letter (A to Z), follow the same rule but using uppercase letters. For example, with a rotation of 1, 'A' becomes 'B', 'B' becomes 'C', and 'Z' becomes 'A'.
- If it's not a letter (such as a number, symbol, or space), leave it unchanged.
- Repeat this process for every letter in the text.
Decoding (ROT 1-25): Decoding ROT 1-25 is the same as encoding because the process is symmetrical. To decode a ROT 1-25 encoded message, follow these steps:
- Start with the ROT 1-25 encoded text.
- Know the rotation value that was used to encode it.
- Apply the same ROT 1-25 encoding process but in reverse. In other words, rotate the letters backward by the chosen value.
- The result will be the original, unencoded text.
Example: Let's say you have the text "Hello, World!" and you want to encode it using ROT 3 (rotate by 3 positions):
- H -> E
- e -> b
- l -> i
- l -> i
- o -> l
- , (comma) -> , (comma) [unchanged]
- (space) -> (space) [unchanged]
- W -> T
- o -> l
- r -> o
- l -> i
- d -> a
- ! (exclamation mark) -> ! (exclamation mark) [unchanged]
So, "Hello, World!" encoded with ROT 3 becomes "Ebilb, Tolia!".
To decode "Ebilb, Tolia!" back to the original text with a ROT 3 rotation, you would apply the ROT 3 encoding process in reverse, resulting in "Hello, World!".
Each ROT value from 1 to 25 corresponds to a different rotation, and you can choose any of them for encoding and decoding text.