Question: I was accidentally go to my miniconda directory and rm -r ca* (just because I using Arch and when update miniconda3 package, it said there are some certificates were there so it can't perform update, so I removed them) Now every time I run conda command, it give me RuntimeError: OpenSSL 3.0's legacy provider failed to load. here is the full log: $conda env list Traceback (most recent call last): File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 16, in __call__ return func(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/main.py", line 70, in main_subshell p = generate_parser() ^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/conda_argparse.py", line 65, in generate_parser p = ArgumentParser( ^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/conda_argparse.py", line 152, in __init__ self._subcommands = context.plugin_manager.get_hook_results("subcommands") ^^^^^^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/base/context.py", line 502, in plugin_manager from ..plugins.manager import get_plugin_manager File "/opt/miniconda3/lib/python3.11/site-packages/conda/plugins/__init__.py", line 3, in <module> from .hookspec import hookimpl # noqa: F401 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/plugins/hookspec.py", line 9, in <module> from .types import CondaSolver, CondaSubcommand, CondaVirtualPackage File "/opt/miniconda3/lib/python3.11/site-packages/conda/plugins/types.py", line 7, in <module> from ..core.solve import Solver File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/solve.py", line 41, in <module> from .index import _supplement_index_with_system, get_reduced_index File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/index.py", line 24, in <module> from .subdir_data import SubdirData, make_feature_record File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/subdir_data.py", line 53, in <module> from ..trust.signature_verification import signature_verification File "/opt/miniconda3/lib/python3.11/site-packages/conda/trust/signature_verification.py", line 12, in <module> from conda_content_trust.authentication import verify_delegation, verify_root File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/authentication.py", line 34, in <module> from .common import ( File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/common.py", line 66, in <module> import cryptography.hazmat.backends.openssl.ed25519 File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/backends/openssl/__init__.py", line 6, in <module> from cryptography.hazmat.backends.openssl.backend import backend File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 61, in <module> from cryptography.hazmat.bindings.openssl import binding File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 232, in <module> Binding.init_static_locks() File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 206, in init_static_locks cls._ensure_ffi_initialized() File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 195, in _ensure_ffi_initialized _legacy_provider_error(cls._legacy_provider_loaded) File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 104, in _legacy_provider_error raise RuntimeError( RuntimeError: OpenSSL 3.0's legacy provider failed to load. This is a fatal error by default, but cryptography supports running without legacy algorithms by setting the environment variable CRYPTOGRAPHY_OPENSSL_NO_LEGACY. If you did not expect this error, you have likely made a mistake with your OpenSSL configuration. During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/opt/miniconda3/bin/conda", line 13, in <module> sys.exit(main()) ^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/main.py", line 129, in main return conda_exception_handler(main, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 376, in conda_exception_handler return_value = exception_handler(func, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 19, in __call__ return self.handle_exception(exc_val, exc_tb) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 75, in handle_exception return self.handle_unexpected_exception(exc_val, exc_tb) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 88, in handle_unexpected_exception self.print_unexpected_error_report(error_report) File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 159, in print_unexpected_error_report from .cli.main_info import get_env_vars_str, get_main_info_str File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/main_info.py", line 15, in <module> from ..core.index import _supplement_index_with_system File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/index.py", line 24, in <module> from .subdir_data import SubdirData, make_feature_record File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/subdir_data.py", line 53, in <module> from ..trust.signature_verification import signature_verification File "/opt/miniconda3/lib/python3.11/site-packages/conda/trust/signature_verification.py", line 12, in <module> from conda_content_trust.authentication import verify_delegation, verify_root File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/authentication.py", line 34, in <module> from .common import ( File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/common.py", line 334, in <module> cryptography.hazmat.backends.openssl.ed25519._Ed25519PrivateKey, # DANGER ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ AttributeError: module 'cryptography.hazmat.backends' has no attribute 'openssl'  How can I fix this?

Answer: my problem was fixed as follow: export CRYPTOGRAPHY_OPENSSL_NO_LEGACY=1 conda install cryptography  that's all.