1 unstable release
0.1.0 | Sep 27, 2024 |
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#436 in Cryptography
177 downloads per month
18KB
214 lines
Introduction
Goals for this implementation of tokens
- compact representation
- easy verbally spelling (no upper case)
- adaptable token identifier
- error recognition
- restriction to ASCII chars
- can be used in URLs without percent encoding
Token
Basic token value is a 32 bit value, plus 3 bits of error recognition. This token is represented with seven digits, each digit encoded five bits.
Example
use token_identifier::Token;
fn main() {
let token = Token::new();
println!("simple 32 bit token : {}", token);
}
simple 32 bit token : hfmon16
Encoding
cccvv|vvvvv|vvvvv|vvvvv|vvvvv|vvvvv|vvvvv
- c : 3 check bits
- v : 32 value bits
- | : digit border
BNF
<token> ::= <digit> <digit> <digit> <digit> <digit> <digit> <digit>
<digit> ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v
Token Identifier
Token identifier means a list of token separated with char '-'. The size of a token id is a multiple of 32 bits.
Example
use token_identifier::TokenId;
fn main() {
let token = TokenId::new_128();
println!("token id with 128 bits : {}", token);
}
token id with 128 bits : mht6fmh-aputm5h-5ih87pp-upc8sqc
BNF
<tokenid> ::= <token> '-' <tokenid> | <token>
Dependencies
~2.4–3.5MB
~60K SLoC