[Misc] Add backup hash algorithm for FIPS constrained environments (#28795)

Signed-off-by: George D. Torres <gdavtor@gmail.com>
Signed-off-by: George D. Torres <41129492+geodavic@users.noreply.github.com>
Signed-off-by: Russell Bryant <rbryant@redhat.com>
Co-authored-by: Russell Bryant <rbryant@redhat.com>

vllm/compilation/caching.py

@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
-import hashlib
 import inspect
 import os
 import pickle
@@ -14,6 +13,7 @@ import vllm.envs as envs
 from vllm.config import VllmConfig, get_current_vllm_config
 from vllm.config.utils import hash_factors
 from vllm.logger import init_logger
+from vllm.utils.hashing import safe_hash
 
 try:
     from torch._dynamo.aot_compile import SerializableCallable
@@ -160,7 +160,7 @@ def _compute_code_hash_with_content(file_contents: dict[str, str]) -> str:
             # e.g. exec(). We can't actually check these.
             continue
         hash_content.append(content)
-    return hashlib.md5(
+    return safe_hash(
         "\n".join(hash_content).encode(), usedforsecurity=False
     ).hexdigest()
 

vllm/compilation/compiler_interface.py

@@ -2,7 +2,6 @@
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import contextlib
 import copy
-import hashlib
 import os
 from collections.abc import Callable
 from contextlib import ExitStack
@@ -16,6 +15,7 @@ import torch.fx as fx
 import vllm.envs as envs
 from vllm.compilation.counter import compilation_counter
 from vllm.config import VllmConfig
+from vllm.utils.hashing import safe_hash
 from vllm.utils.torch_utils import is_torch_equal_or_newer
 
 
@@ -197,9 +197,9 @@ class InductorStandaloneAdaptor(CompilerInterface):
 
     def compute_hash(self, vllm_config: VllmConfig) -> str:
         factors = get_inductor_factors()
-        hash_str = hashlib.md5(
-            str(factors).encode(), usedforsecurity=False
-        ).hexdigest()[:10]
+        hash_str = safe_hash(str(factors).encode(), usedforsecurity=False).hexdigest()[
+            :10
+        ]
         return hash_str
 
     def initialize_cache(
@@ -286,9 +286,9 @@ class InductorAdaptor(CompilerInterface):
 
     def compute_hash(self, vllm_config: VllmConfig) -> str:
         factors = get_inductor_factors()
-        hash_str = hashlib.md5(
-            str(factors).encode(), usedforsecurity=False
-        ).hexdigest()[:10]
+        hash_str = safe_hash(str(factors).encode(), usedforsecurity=False).hexdigest()[
+            :10
+        ]
         return hash_str
 
     def initialize_cache(