add checkummer.rs

1 files changed, 8 insertions, 0 deletions

diff --git a/src/checksummer.rs b/src/checksummer.rs
new file mode 100644
index 0000000..162c26b
--- /dev/null
+++ b/src/checksummer.rs
@@ -0,0 +1,8 @@
+use sha2::{Digest, Sha256};
+
+pub fn sha256(data: &[u8]) -> String {
+    let mut hasher = Sha256::new();
+    hasher.update(data);
+    let hash = hasher.finalize();
+    format!("{:x}", hash)
+}