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aws · Apr 8, 2024 · 77cde52 · 77cde52
1 parent 08e0cc5
commit 77cde52
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Showing 2 changed files with 14 additions and 2 deletions.
diff --git a/aws-lc-rs/src/rsa/encryption.rs b/aws-lc-rs/src/rsa/encryption.rs
@@ -276,7 +276,7 @@ impl OaepPublicEncryptingKey {
     /// # Sizing `output`
     /// For `OAEP_SHA1_MGF1SHA1`, `OAEP_SHA256_MGF1SHA256`, `OAEP_SHA384_MGF1SHA384`, `OAEP_SHA512_MGF1SHA512` the
     /// length of `output` must be the RSA key size in bytes. The RSA key size in bytes can be retrieved using
-    /// [`Self::key_size`].
+    /// [`Self::key_size_bytes`].
     ///
     /// # Errors
     /// * `Unspecified` for any error that occurs while encrypting `plaintext`.
@@ -377,7 +377,7 @@ impl OaepPrivateDecryptingKey {
     ///
     /// # Sizing `output`
     /// For `OAEP_SHA1_MGF1SHA1`, `OAEP_SHA256_MGF1SHA256`, `OAEP_SHA384_MGF1SHA384`, `OAEP_SHA512_MGF1SHA512`. The
-    /// length of `output` must be equal to [`Self::key_size`].
+    /// length of `output` must be equal to [`Self::key_size_bytes`].
     ///
     /// # Errors
     /// * `Unspecified` for any error that occurs while decrypting `ciphertext`.

diff --git a/aws-lc-rs/src/rsa/key.rs b/aws-lc-rs/src/rsa/key.rs
@@ -65,6 +65,18 @@ pub enum KeySize {
 
 #[allow(clippy::len_without_is_empty)]
 impl KeySize {
+    /// Returns the size of the key in bytes.
+    #[inline]
+    #[must_use]
+    pub fn len(self) -> usize {
+        match self {
+            Self::Rsa2048 => 256,
+            Self::Rsa3072 => 384,
+            Self::Rsa4096 => 512,
+            Self::Rsa8192 => 1024,
+        }
+    }
+
     /// Returns the key size in bits.
     #[inline]
     pub(super) fn bits(self) -> i32 {