1 files changed, 28 insertions, 0 deletions
diff --git a/lockchain-core/src/errors/crypto.rs b/lockchain-core/src/errors/crypto.rs
new file mode 100644
index 0000000..a0c12a2
--- /dev/null
+++ b/lockchain-core/src/errors/crypto.rs
@@ -0,0 +1,28 @@
+//! I sell crypto and crypto accessories (errors)
+
+use std::error::Error as StdError;
+use std::fmt::{Display, Formatter, Result};
+
+#[derive(Debug, Serialize, Deserialize)]
+pub enum Error {
+    /// Provided crypto layer is lacking features or missing
+    InvalidCryptoLayer,
+    /// Failed to initialise cryptography module
+    FailedCrypto,
+    /// Invalid key or user identity
+    FailedKey,
+}
+
+impl StdError for Error {}
+
+impl Display for Error {
+    fn fmt(&self, f: &mut Formatter) -> Result {
+        write!(
+            f,
+            "{}",
+            match self {
+                _ => "Unknown failure",
+            }
+        )
+    }
+}