SHA-256: Difference between revisions

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@@ Line 2,152: / Line 2,152: @@
 =={{header|Rust}}==
-<lang rust>extern crate ring;
+<lang rust>use sha2::{Digest, Sha256};
+fn hex_string(input: &[u8]) -> String {
-use ring::digest::{digest, SHA256};
+    input.as_ref().iter().map(|b| format!("{:x}", b)).collect()
+}
 fn main() {
+    // create a Sha256 object
-    println!("{}", sha_256("Rosetta code"));
+    let mut hasher = Sha256::new();
+    // write input message
+    hasher.input(b"Rosetta code");
+    // read hash digest and consume hasher
+    let result = hasher.result();
+    let hex = hex_string(&result);
+    assert_eq!(
+        hex,
+        "764faf5c61ac315f1497f9dfa542713965b785e5cc2f707d6468d7d1124cdfcf"
+    );
+    println!("{}", hex)
 }
+</lang>
+{{out}}
-fn sha_256(input: &str) -> String {
+<pre>
-    let result = digest(&SHA256, input.as_bytes());
+faf5c61ac315f1497f9dfa542713965b785e5cc2f707d6468d7d1124cdfcf
-    result.as_ref().iter().map(|b| format!("{:x}", b)).collect()
-}</lang>
+</pre>
 =={{header|Scala}}==