SHA-256 is the recommended stronger alternative to SHA-1. See FIPS PUB 180-4 for implementation details.

Either by using a dedicated library or implementing the algorithm in your language, show that the SHA-256 digest of the string "Rosetta code" is: 764faf5c61ac315f1497f9dfa542713965b785e5cc2f707d6468d7d1124cdfcf

import crypto.sha256
 
fn main() {
    println("${sha256.hexhash('Rosetta code')}")
 
    mut h := sha256.new()
    h.write('Rosetta code'.bytes()) ?
    println('${h.checksum().map(it.hex()).join('')}')
}