openpgp: Move definition of struct KeyID.

1 files changed, 17 insertions, 1 deletions

diff --git a/openpgp/src/keyid.rs b/openpgp/src/keyid.rs
index e7e262fd..306e9648 100644
--- a/openpgp/src/keyid.rs
+++ b/openpgp/src/keyid.rs
@@ -3,9 +3,25 @@ use quickcheck::{Arbitrary, Gen};
 
 use crate::Error;
 use crate::Fingerprint;
-use crate::KeyID;
 use crate::Result;
 
+/// Holds a KeyID.
+///
+/// A KeyID is a fingerprint fragment.  It identifies a public key,
+/// but is easy to forge.  For more details about how a KeyID is
+/// generated, see [Section 12.2 of RFC 4880].
+///
+///   [Section 12.2 of RFC 4880]: https://tools.ietf.org/html/rfc4880#section-12.2
+#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Hash)]
+pub enum KeyID {
+    /// Lower 8 byte SHA-1 hash.
+    V4([u8;8]),
+    /// Used for holding fingerprints that we don't understand.  For
+    /// instance, we don't grok v3 fingerprints.  And, it is possible
+    /// that the Issuer subpacket contains the wrong number of bytes.
+    Invalid(Box<[u8]>)
+}
+
 impl fmt::Display for KeyID {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "{}", self.convert_to_string(true))