Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/vendor/spki/src/traits.rs b/vendor/spki/src/traits.rs
index 1126c7c40..764b02a4a 100644
--- a/vendor/spki/src/traits.rs
+++ b/vendor/spki/src/traits.rs
@@ -6,7 +6,7 @@ use der::{EncodeValue, Tagged};
 #[cfg(feature = "alloc")]
 use {
     crate::AlgorithmIdentifierOwned,
-    der::{Any, Document},
+    der::{asn1::BitString, Any, Document},
 };
 
 #[cfg(feature = "pem")]
@@ -173,3 +173,12 @@ where
         })
     }
 }
+
+/// Returns the `BitString` encoding of the signature.
+///
+/// X.509 and CSR structures require signatures to be BitString encoded.
+#[cfg(feature = "alloc")]
+pub trait SignatureBitStringEncoding {
+    /// `BitString` encoding for this signature.
+    fn to_bitstring(&self) -> der::Result<BitString>;
+}