Add jvm search and download support (thanks KiteeLauncher)

utils/bk_utils/crypto.py

@@ -0,0 +1,39 @@
+"""
+bk_core
+
+Copyright (c) 2024~2025 Techarerm/TedKai
+Copyright (c) 2026 Kitee Contributors. All rights reserved.
+"""
+import hashlib
+
+
+def verify_checksum(file_path, expected_sha1):
+    sha1 = hashlib.sha1()
+    with open(file_path, "rb") as f:
+        while True:
+            data = f.read(65536)  # Read in 64KB chunks
+            if not data:
+                break
+            sha1.update(data)
+    file_sha1 = sha1.hexdigest()
+    return file_sha1 == expected_sha1
+
+
+def verify_checksum_v2(file_path, expected_hash, crypto_type):
+    hash_dict = {
+        'sha1': hashlib.sha1,
+        'sha256': hashlib.sha256,
+        'md5': hashlib.md5
+    }
+
+    if crypto_type not in hash_dict:
+        raise ValueError(f"Unsupported hash type: {crypto_type}")
+
+    hash_obj = hash_dict[crypto_type]()
+
+    with open(file_path, "rb") as f:
+        for chunk in iter(lambda: f.read(65536), b""):
+            hash_obj.update(chunk)
+
+    file_sha1 = hash_obj.hexdigest()
+    return file_sha1 == expected_hash