Add back Validation::default()

Closes #208

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "jsonwebtoken"
-version = "8.0.0-beta.3"
+version = "8.0.0-beta.4"
 authors = ["Vincent Prouillet <hello@vincentprouillet.com>"]
 license = "MIT"
 readme = "README.md"
@@ -17,7 +17,7 @@ serde = {version = "1.0", features = ["derive"] }
 ring = { version = "0.16.5", features = ["std"] }
 base64 = "0.13"
 # For PEM decoding
-pem = "0.8"
+pem = "1"
 simple_asn1 = "0.5"
 
 [dev-dependencies]

src/validation.rs

@@ -70,19 +70,7 @@ pub struct Validation {
 impl Validation {
     /// Create a default validation setup allowing the given alg
     pub fn new(alg: Algorithm) -> Validation {
-        Validation {
-            algorithms: vec![alg],
-            leeway: 0,
-
-            validate_exp: true,
-            validate_nbf: false,
-
-            iss: None,
-            sub: None,
-            aud: None,
-
-            validate_signature: true,
-        }
+        Validation { algorithms: vec![alg], ..Default::default() }
     }
 
     /// `aud` is a collection of one or more acceptable audience members
@@ -103,6 +91,24 @@ impl Validation {
     }
 }
 
+impl Default for Validation {
+    fn default() -> Self {
+        Validation {
+            algorithms: vec![Algorithm::HS256],
+            leeway: 0,
+
+            validate_exp: true,
+            validate_nbf: false,
+
+            iss: None,
+            sub: None,
+            aud: None,
+
+            validate_signature: true,
+        }
+    }
+}
+
 /// Gets the current timestamp in the format JWT expect
 pub fn get_current_timestamp() -> u64 {
     let start = SystemTime::now();