aviramha / rfernet

Python extension for Fernet encryption/decryption, faster than other alternatives.

rfernet

Python extension for Fernet encryption/decryption, faster than other alternatives. This library uses the rust library fernet-rs https://github.com/mozilla-services/fernet-rs.

CI & Building wheels copied from cryptography and orjson

Benchmark

Compared to cryptography's Fernet (CPU):

In [2]: from cryptography.fernet import Fernet as cFernet

In [3]: from rfernet import Fernet as rFernet

In [4]:

In [4]: plain = b"asd" * 1000

In [5]: key = rFernet.generate_new_key()

In [7]: r_fernet = rFernet(key)

In [8]: c_fernet = cFernet(key)

In [9]: %timeit r_fernet.encrypt(plain)
18.4 µs ± 117 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

In [10]: %timeit c_fernet.encrypt(plain)
77.7 µs ± 921 ns per loop (mean ± std. dev. of 7 runs, 10000 loops each)

Memory:

# rfernet
[ Top 10 ]
<frozen importlib._bootstrap>:219: size=4444 B, count=38, average=117 B
test2.py:4: size=576 B, count=1, average=576 B
<frozen importlib._bootstrap_external>:59: size=156 B, count=1, average=156 B
test2.py:6: size=93 B, count=1, average=93 B
<frozen importlib._bootstrap>:371: size=80 B, count=1, average=80 B
<frozen importlib._bootstrap>:105: size=72 B, count=1, average=72 B
<frozen importlib._bootstrap_external>:1352: size=56 B, count=1, average=56 B
<frozen importlib._bootstrap_external>:606: size=56 B, count=1, average=56 B
test2.py:7: size=48 B, count=1, average=48 B
<frozen importlib._bootstrap_external>:1030: size=40 B, count=1, average=40 B

# cryptography's Fernet
[ Top 10 ]
<frozen importlib._bootstrap_external>:525: size=3134 KiB, count=31814, average=101 B
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/cryptography/hazmat/bindings/openssl/binding.py:91: size=449 KiB, count=3169, average=145 B
<frozen importlib._bootstrap>:219: size=404 KiB, count=3384, average=122 B
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/abc.py:126: size=146 KiB, count=717, average=209 B
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/cryptography/hazmat/bindings/openssl/binding.py:89: size=119 KiB, count=1773, average=69 B
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/abc.py:127: size=68.7 KiB, count=447, average=157 B
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py:2793: size=46.8 KiB, count=282, average=170 B
<frozen importlib._bootstrap_external>:59: size=41.7 KiB, count=265, average=161 B
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/abc.py:135: size=40.8 KiB, count=339, average=123 B
/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/idna/idnadata.py:826: size=36.7 KiB, count=3, average=12.2 KiB

Memory test source code:

import tracemalloc

tracemalloc.start()
from cryptography.fernet import Fernet as cFernet
plain = b"asd" * 1000
key = cFernet.generate_key()
c_fernet = cFernet(key)
c_fernet.encrypt(plain)

snapshot = tracemalloc.take_snapshot()
top_stats = snapshot.statistics('lineno')

print("[ Top 10 ]")
for stat in top_stats[:10]:
    print(stat)

rfernet's Issues

rfernet fails to install on aarch64 (Macbook M1)

Currently, off latest version of rfernet on PyPi, I receive this error when attempting to install on M1 macbook:

        × Building wheel for maturin (pyproject.toml) did not run successfully.
        │ exit code: 1
        ╰─> [257 lines of output]
            running bdist_wheel
            running build
            installing to build/bdist.macosx-13.4-arm64/wheel
            running install
               Compiling libc v0.2.67
               Compiling proc-macro2 v1.0.9
               Compiling unicode-xid v0.2.0
               Compiling syn v1.0.16
               Compiling cfg-if v0.1.10
               Compiling cc v1.0.50
               Compiling log v0.4.8
               Compiling version_check v0.9.1
               Compiling memchr v2.3.3
               Compiling lazy_static v1.4.0
               Compiling itoa v0.4.5
               Compiling untrusted v0.7.0
               Compiling spin v0.5.2
               Compiling slab v0.4.2
               Compiling serde v1.0.104
               Compiling bytes v0.5.4
               Compiling fnv v1.0.6
               Compiling bitflags v1.2.1
               Compiling core-foundation-sys v0.7.0
               Compiling futures-core v0.3.4
               Compiling autocfg v1.0.0
               Compiling ring v0.16.11
               Compiling proc-macro-nested v0.1.3
               Compiling getrandom v0.1.14
               Compiling pin-project-lite v0.1.4
               Compiling indexmap v1.3.2
               Compiling unicase v2.6.0
               Compiling typenum v1.11.2
               Compiling http v0.2.0
               Compiling proc-macro-error-attr v0.4.11
               Compiling quote v1.0.3
               Compiling net2 v0.2.33
               Compiling iovec v0.1.4
               Compiling num_cpus v1.12.0
            error: failed to run custom build command for `ring v0.16.11

I've pulled the repo locally, and updated the lock file. After doing so, ring is updated and the package installs successfully

Will prepare a PR to update the lock file, and maturin config as well. @aviramha Is this library still being maintained so that a release can be made?

rfernet dependencies fix

My rfernet installation failed due to missing once_cell = "1.17.0" dependency in Cargo.toml.
I also needed to bump maturin to 1.4.0 because of regression in version 1.2.0.
I'll be happy to provide PR with fixes 👍