Function lesspass::generate_salt_to

pub fn generate_salt_to(
    website: &str, 
    username: &str, 
    counter: u32, 
    output: &mut [u8]
) -> Result<usize, usize>

Generates the salt needed to compute the entropy using a combinaison of the target website, login and counters, and writes it to output.

Returns Ok(written_size) if output is large enough, and Err(required_size) if it isn’t (in which case nothing will be written).