From 82d92e6163dd72ee9be8e1adf9e7be6666eea3c9 Mon Sep 17 00:00:00 2001
From: Alex Gaynor <alex.gaynor@gmail.com>
Date: Sun, 19 Nov 2023 09:29:12 -0500
Subject: [PATCH] Added `update_unchecked` to `symm::Crypter`

---
 openssl/src/symm.rs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/openssl/src/symm.rs b/openssl/src/symm.rs
index 1e9dc34fc6..0ff9d874e2 100644
--- a/openssl/src/symm.rs
+++ b/openssl/src/symm.rs
@@ -696,6 +696,27 @@ impl Crypter {
         self.ctx.cipher_update(input, Some(output))
     }
 
+    /// Feeds data from `input` through the cipher, writing encrypted/decrypted
+    /// bytes into `output`.
+    ///
+    /// The number of bytes written to `output` is returned. Note that this may
+    /// not be equal to the length of `input`.
+    ///
+    /// # Safety
+    ///
+    /// The caller must provide an `output` buffer large enough to contain
+    /// correct number of bytes. For streaming ciphers the output buffer size
+    /// should be at least as big as the input buffer. For block ciphers the
+    /// size of the output buffer depends on the state of partially updated
+    /// blocks.
+    pub unsafe fn update_unchecked(
+        &mut self,
+        input: &[u8],
+        output: &mut [u8],
+    ) -> Result<usize, ErrorStack> {
+        self.ctx.cipher_update_unchecked(input, Some(output))
+    }
+
     /// Finishes the encryption/decryption process, writing any remaining data
     /// to `output`.
     ///