Other From impl

src/key.rs

@@ -21,3 +21,20 @@ impl From<[u32; risc0_zkp::core::digest::DIGEST_WORDS]> for Vk {
         Self(value.into())
     }
 }
+
+impl From<[u8; risc0_zkp::core::digest::DIGEST_BYTES]> for Vk {
+    fn from(value: [u8; risc0_zkp::core::digest::DIGEST_BYTES]) -> Self {
+        // Initialize with zeros
+        let mut value_u32: [u32; risc0_zkp::core::digest::DIGEST_WORDS] =
+            [0; risc0_zkp::core::digest::DIGEST_WORDS];
+        // Iterate over chunks of 4 bytes and convert them to u32
+        for (i, chunk) in value.chunks_exact(4).enumerate() {
+            let mut single_value: u32 = 0;
+            for (j, &byte) in chunk.iter().enumerate() {
+                single_value |= (byte as u32) << (8 * j);
+            }
+            value_u32[i] = single_value;
+        }
+        Self(value_u32.into())
+    }
+}