1 files changed, 38 insertions, 0 deletions
diff --git a/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli/scripts/dictionary/step-03-validate-bin.py b/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli/scripts/dictionary/step-03-validate-bin.py
new file mode 100644
index 000000000..171cc9b8c
--- /dev/null
+++ b/roms/edk2/BaseTools/Source/C/BrotliCompress/brotli/scripts/dictionary/step-03-validate-bin.py
@@ -0,0 +1,38 @@
+# Step 03 - validate raw dictionary file.
+#
+# CRC32, MD5, SHA1 and SHA256 checksums for raw binary dictionary are checked.
+
+import hashlib
+import zlib
+
+bin_path = "dictionary.bin"
+
+with open(bin_path, "rb") as raw:
+  data = raw.read()
+
+def check_digest(name, expected, actual):
+  if expected == actual:
+    print("[OK] " + name)
+  else:
+    print("[ERROR] " + name + " | " + expected + " != " + actual)
+
+
+check_digest(
+    "CRC32",  # This is the only checksum provided in RFC.
+    "0x5136cb04",
+    hex(zlib.crc32(data)))
+
+check_digest(
+    "MD5",
+    "96cecd2ee7a666d5aa3627d74735b32a",
+    hashlib.md5(data).hexdigest())
+
+check_digest(
+    "SHA1",
+    "72b41051cb61a9281ba3c4414c289da50d9a7640",
+    hashlib.sha1(data).hexdigest())
+
+check_digest(
+    "SHA256",
+    "20e42eb1b511c21806d4d227d07e5dd06877d8ce7b3a817f378f313653f35c70",
+    hashlib.sha256(data).hexdigest())