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Migrate to Python 3 #3

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114 changes: 56 additions & 58 deletions README.md
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
pyAES
=====

AES algorithm with pure python implementation. Small modify based on [https://bitbucket.org/intgr/pyaes/](https://bitbucket.org/intgr/pyaes/) to compatible with PEP-8.
AES algorithm with pure Python 3 implementation. Small modify based on [https://bitbucket.org/intgr/pyaes/](https://bitbucket.org/intgr/pyaes/) to compatible with PEP-8.

Intro
---
Expand Down Expand Up @@ -29,74 +29,72 @@ How to use?
```
Speed
---
Even though pyaes is an optimized Python implementation, Python itself is still slow. It should be capable of around 80 kB/s on modern hardware; __that's 1000x slower than pure C implementations__.
Even though pyAES is an optimized Python implementation, Python itself is still slow. It should be capable of around 300 kB/s on modern hardware; __that's 1000x slower than pure C implementations__.

This is a test in My Macbook Air(CPython and PyPy):
This is a test in My Macbook Air M1 (CPython and PyPy):

```
$ python bench.py --all
AES-CBC-128 short encrypt: 2.3228 67004 cpb 43.7 kB/s
AES-CBC-128 short decrypt: 2.4256 69969 cpb 41.9 kB/s
AES-CBC-192 short encrypt: 2.7715 79947 cpb 36.6 kB/s
AES-CBC-192 short decrypt: 2.8919 83419 cpb 35.1 kB/s
AES-CBC-256 short encrypt: 3.2400 93462 cpb 31.3 kB/s
AES-CBC-256 short decrypt: 3.3679 97151 cpb 30.2 kB/s
AES-CBC-128 long encrypt: 2.3564 66700 cpb 43.9 kB/s
AES-CBC-128 long decrypt: 2.4683 69869 cpb 41.9 kB/s
AES-CBC-192 long encrypt: 2.8118 79591 cpb 36.8 kB/s
AES-CBC-192 long decrypt: 2.9336 83038 cpb 35.3 kB/s
AES-CBC-256 long encrypt: 3.3641 95226 cpb 30.8 kB/s
AES-CBC-256 long decrypt: 3.4369 97286 cpb 30.1 kB/s
AES-ECB-128 short encrypt: 2.3100 66634 cpb 44.0 kB/s
AES-ECB-128 short decrypt: 2.4134 69618 cpb 42.1 kB/s
AES-ECB-192 short encrypt: 2.8941 83483 cpb 35.1 kB/s
AES-ECB-192 short decrypt: 2.9094 83926 cpb 34.9 kB/s
AES-ECB-256 short encrypt: 3.2390 93432 cpb 31.4 kB/s
AES-ECB-256 short decrypt: 3.3983 98029 cpb 29.9 kB/s
AES-ECB-128 long encrypt: 2.4414 69107 cpb 42.4 kB/s
AES-ECB-128 long decrypt: 2.5723 72811 cpb 40.2 kB/s
AES-ECB-192 long encrypt: 2.9348 83073 cpb 35.3 kB/s
AES-ECB-192 long decrypt: 3.1270 88512 cpb 33.1 kB/s
AES-ECB-256 long encrypt: 3.7037 104839 cpb 27.9 kB/s
AES-ECB-256 long decrypt: 6.5956 186695 cpb 15.7 kB/s
$ python3 bench.py --all
AES-CBC-128 short encrypt: 0.3024 8723 cpb 335.9 kB/s
AES-CBC-128 short decrypt: 0.3330 9605 cpb 305.0 kB/s
AES-CBC-192 short encrypt: 0.3644 10512 cpb 278.7 kB/s
AES-CBC-192 short decrypt: 0.4015 11581 cpb 253.0 kB/s
AES-CBC-256 short encrypt: 0.4249 12256 cpb 239.0 kB/s
AES-CBC-256 short decrypt: 0.4644 13397 cpb 218.7 kB/s
AES-CBC-128 long encrypt: 0.3107 8796 cpb 333.1 kB/s
AES-CBC-128 long decrypt: 0.3385 9583 cpb 305.7 kB/s
AES-CBC-192 long encrypt: 0.3709 10498 cpb 279.1 kB/s
AES-CBC-192 long decrypt: 0.4061 11496 cpb 254.8 kB/s
AES-CBC-256 long encrypt: 0.4319 12224 cpb 239.7 kB/s
AES-CBC-256 long decrypt: 0.4746 13433 cpb 218.1 kB/s
AES-ECB-128 short encrypt: 0.2982 8601 cpb 340.6 kB/s
AES-ECB-128 short decrypt: 0.3252 9381 cpb 312.3 kB/s
AES-ECB-192 short encrypt: 0.3570 10299 cpb 284.5 kB/s
AES-ECB-192 short decrypt: 0.3940 11365 cpb 257.8 kB/s
AES-ECB-256 short encrypt: 0.4180 12058 cpb 243.0 kB/s
AES-ECB-256 short decrypt: 0.4570 13183 cpb 222.2 kB/s
AES-ECB-128 long encrypt: 0.3044 8617 cpb 340.0 kB/s
AES-ECB-128 long decrypt: 0.3334 9437 cpb 310.4 kB/s
AES-ECB-192 long encrypt: 0.3664 10373 cpb 282.4 kB/s
AES-ECB-192 long decrypt: 0.3980 11265 cpb 260.1 kB/s
AES-ECB-256 long encrypt: 0.4276 12103 cpb 242.1 kB/s
AES-ECB-256 long decrypt: 0.4663 13199 cpb 222.0 kB/s

$ pypy bench.py --all
AES-CBC-128 short encrypt: 0.3558 10263 cpb 285.5 kB/s
AES-CBC-128 short decrypt: 0.4569 13179 cpb 222.3 kB/s
AES-CBC-192 short encrypt: 0.2565 7400 cpb 395.9 kB/s
AES-CBC-192 short decrypt: 0.2916 8411 cpb 348.3 kB/s
AES-CBC-256 short encrypt: 0.2569 7410 cpb 395.4 kB/s
AES-CBC-256 short decrypt: 0.3692 10650 cpb 275.1 kB/s
AES-CBC-128 long encrypt: 0.2114 5985 cpb 489.5 kB/s
AES-CBC-128 long decrypt: 0.2103 5952 cpb 492.2 kB/s
AES-CBC-192 long encrypt: 0.2235 6325 cpb 463.2 kB/s
AES-CBC-192 long decrypt: 0.2317 6559 cpb 446.7 kB/s
AES-CBC-256 long encrypt: 0.2517 7125 cpb 411.2 kB/s
AES-CBC-256 long decrypt: 0.2549 7215 cpb 406.1 kB/s
AES-ECB-128 short encrypt: 0.3762 10852 cpb 270.0 kB/s
AES-ECB-128 short decrypt: 0.3265 9418 cpb 311.1 kB/s
AES-ECB-192 short encrypt: 0.2321 6695 cpb 437.6 kB/s
AES-ECB-192 short decrypt: 0.2962 8543 cpb 342.9 kB/s
AES-ECB-256 short encrypt: 0.2416 6970 cpb 420.3 kB/s
AES-ECB-256 short decrypt: 0.2562 7391 cpb 396.4 kB/s
AES-ECB-128 long encrypt: 0.1960 5547 cpb 528.2 kB/s
AES-ECB-128 long decrypt: 0.2123 6011 cpb 487.4 kB/s
AES-ECB-192 long encrypt: 0.2413 6829 cpb 429.0 kB/s
AES-ECB-192 long decrypt: 0.2380 6736 cpb 434.9 kB/s
AES-ECB-256 long encrypt: 0.2560 7245 cpb 404.4 kB/s
AES-ECB-256 long decrypt: 0.2638 7468 cpb 392.3 kB/s
$ pypy3 bench.py --all
AES-CBC-128 short encrypt: 0.0452 1305 cpb 2245.7 kB/s
AES-CBC-128 short decrypt: 0.0425 1225 cpb 2392.4 kB/s
AES-CBC-192 short encrypt: 0.0299 861 cpb 3401.1 kB/s
AES-CBC-192 short decrypt: 0.0340 981 cpb 2985.4 kB/s
AES-CBC-256 short encrypt: 0.0321 925 cpb 3168.8 kB/s
AES-CBC-256 short decrypt: 0.0343 989 cpb 2961.1 kB/s
AES-CBC-128 long encrypt: 0.0230 651 cpb 4501.6 kB/s
AES-CBC-128 long decrypt: 0.0238 675 cpb 4341.5 kB/s
AES-CBC-192 long encrypt: 0.0282 797 cpb 3674.2 kB/s
AES-CBC-192 long decrypt: 0.0282 799 cpb 3665.8 kB/s
AES-CBC-256 long encrypt: 0.0324 916 cpb 3196.8 kB/s
AES-CBC-256 long decrypt: 0.0329 932 cpb 3144.0 kB/s
AES-ECB-128 short encrypt: 0.0371 1070 cpb 2738.0 kB/s
AES-ECB-128 short decrypt: 0.0323 932 cpb 3143.7 kB/s
AES-ECB-192 short encrypt: 0.0278 802 cpb 3652.7 kB/s
AES-ECB-192 short decrypt: 0.0272 783 cpb 3740.5 kB/s
AES-ECB-256 short encrypt: 0.0321 925 cpb 3167.8 kB/s
AES-ECB-256 short decrypt: 0.0318 917 cpb 3195.9 kB/s
AES-ECB-128 long encrypt: 0.0227 643 cpb 4558.5 kB/s
AES-ECB-128 long decrypt: 0.0237 672 cpb 4362.8 kB/s
AES-ECB-192 long encrypt: 0.0270 764 cpb 3835.0 kB/s
AES-ECB-192 long decrypt: 0.0284 805 cpb 3638.4 kB/s
AES-ECB-256 long encrypt: 0.0317 898 cpb 3262.3 kB/s
AES-ECB-256 long decrypt: 0.0329 933 cpb 3141.3 kB/s

$ openssl speed -evp aes-128-cbc aes-192-cbc aes-256-cbc -elapsed
You have chosen to measure elapsed time instead of user CPU time.
To get the most accurate results, try to run this
program when this computer is idle.

......(pass some info)

type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
aes-192 cbc 67434.37k 69537.86k 69332.72k 69231.16k 70681.26k
aes-256 cbc 59265.99k 60532.54k 56754.30k 54190.84k 60041.34k
aes-128-cbc 65590.32k 68580.34k 62408.63k 77896.57k 80406.19k
aes-192 cbc 258761.09k 271434.35k 274407.33k 273140.34k 271047.29k
aes-256 cbc 232336.64k 237868.93k 234162.85k 238381.57k 239210.50k
aes-128-cbc 303575.80k 316688.83k 320358.54k 318650.80k 320910.45k
```

Why pyAES
Expand Down
18 changes: 9 additions & 9 deletions bench.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,9 +25,9 @@
cleartext = "This is a test. What could possibly go wrong? " * 50 + '\0' * 4

keys = (
('128', '3afca8488ce0d5136aba87953fbd986e'.decode('hex')),
('192', '35f8b4f0edcee9999d6cc995409e1d506fa8e269c2b795e6'.decode('hex')),
('256', 'e6cb51df8394cd2c78055c92a55fdb44202034fdabd765feeb12b7ad61554972'.decode('hex')),
('128', bytes.fromhex('3afca8488ce0d5136aba87953fbd986e')),
('192', bytes.fromhex('35f8b4f0edcee9999d6cc995409e1d506fa8e269c2b795e6')),
('256', bytes.fromhex('e6cb51df8394cd2c78055c92a55fdb44202034fdabd765feeb12b7ad61554972')),
)
texts = (
# 500 x 52 x 4 bytes = 104000
Expand All @@ -41,15 +41,15 @@
)
funcs = ('encrypt', 'decrypt')

iv = 'b9de523d1e1588bf46f9084cb796684f'.decode('hex')
iv = bytes.fromhex('b9de523d1e1588bf46f9084cb796684f')


def benchmark(key, mode, runs, func, text):
# IV is ignored for ECB mode
aes = pyaes.new(key, mode, IV=iv)

f = getattr(aes, func)
for i in xrange(runs):
for i in range(runs):
f(text)


Expand All @@ -70,13 +70,13 @@ def alltests():
for keydesc, key in keys:
for func in funcs:
result = run(key, mode, runs, func, text)
print 'AES-%s-%s %5s %s: %s' % (
print ('AES-%s-%s %5s %s: %s' % (
modedesc,
keydesc,
textdesc,
func,
result
)
))


def quicktest():
Expand All @@ -89,13 +89,13 @@ def quicktest():
#runs *= 2

result = run(key, mode, runs, func, text)
print 'AES-%s-%s %5s %s: %s' % (modedesc, keydesc, textdesc, func, result)
print ('AES-%s-%s %5s %s: %s' % (modedesc, keydesc, textdesc, func, result))

# AES-CBC-256 long encrypt
keydesc, key = keys[2]

result = run(key, mode, runs, func, text)
print 'AES-%s-%s %5s %s: %s' % (modedesc, keydesc, textdesc, func, result)
print ('AES-%s-%s %5s %s: %s' % (modedesc, keydesc, textdesc, func, result))


if __name__ == '__main__':
Expand Down
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