openpgp: Add signature roundtrip test.

1 files changed, 25 insertions, 0 deletions

diff --git a/openpgp/src/packet/key.rs b/openpgp/src/packet/key.rs
index 7ace0843..285f5188 100644
--- a/openpgp/src/packet/key.rs
+++ b/openpgp/src/packet/key.rs
@@ -2107,6 +2107,31 @@ mod tests {
     }
 
     #[test]
+    fn signature_roundtrip() {
+        use crate::types::{Curve::*, SignatureType};
+
+        let keys = vec![NistP256, NistP384, NistP521].into_iter()
+            .filter_map(|cv| {
+                Key4::generate_ecc(true, cv).ok()
+            }).chain(vec![1024, 2048, 3072, 4096].into_iter().filter_map(|b| {
+                Key4::generate_rsa(b).ok()
+            }));
+
+        for key in keys.into_iter() {
+            let key: Key<key::SecretParts, key::UnspecifiedRole> = key.into();
+            let mut keypair = key.clone().into_keypair().unwrap();
+            let hash = HashAlgorithm::default();
+
+            // Sign.
+            let mut sig = SignatureBuilder::new(SignatureType::Binary)
+                .sign_hash(&mut keypair, hash.context().unwrap()).unwrap();
+
+            // Verify.
+            sig.verify_hash(&key, hash.context().unwrap()).unwrap();
+        }
+    }
+
+    #[test]
     fn secret_encryption_roundtrip() {
         use crate::types::Curve::*;