1 files changed, 25 insertions, 0 deletions
diff --git a/lockchain-core/src/crypto/utils/hashing.rs b/lockchain-core/src/crypto/utils/hashing.rs
new file mode 100644
index 0000000..4a24a17
--- /dev/null
+++ b/lockchain-core/src/crypto/utils/hashing.rs
@@ -0,0 +1,25 @@
+//! Hashing utility functions for various applications
+
+use blake2::digest::{Input, VariableOutput};
+use blake2::Blake2s;
+
+const BLAKE_16_LENGTH: usize = 16;
+
+/// Hash a value with blake2
+pub fn blake2(data: &str, salt: &str) -> [u8; BLAKE_16_LENGTH] {
+    let mut hasher = match Blake2s::new(BLAKE_16_LENGTH) {
+        Ok(res) => res,
+        Err(some) => panic!(some),
+    };
+
+    let to_hash = format!("{}{}", data, salt);
+    hasher.process(to_hash.as_bytes());
+
+    let mut buffer = [0u8; BLAKE_16_LENGTH];
+    match hasher.variable_result(&mut buffer) {
+        Ok(res) => res,
+        Err(e) => panic!(e),
+    };
+
+    return buffer;
+}