June 2018 Update

Task/SHA-256/Rust/sha-256.rust

@@ -1,10 +1,12 @@
-extern crate crypto;
+extern crate ring;
 
-use crypto::sha2::Sha256;
-use crypto::digest::Digest;
+use ring::digest::{digest, SHA256};
 
 fn main() {
-	let mut digest = Sha256::new();
-	digest.input_str("Rosetta code");
-	assert!(digest.result_str() == "764faf5c61ac315f1497f9dfa542713965b785e5cc2f707d6468d7d1124cdfcf".into());
+    println!("{}", sha_256("Rosetta code"));
+}
+
+fn sha_256(input: &str) -> String {
+    let result = digest(&SHA256, input.as_bytes());
+    result.as_ref().iter().map(|b| format!("{:x}", b)).collect()
 }