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borg benchmark cpu: add kdf timings 

Note: A KDF shall be expensive to compute to slow down
attacks on your key encryption / your passphrase.
This commit is contained in:
Thomas Waldmann 2022-03-26 19:47:43 +01:00
parent 23b27cfd0c
commit 3fe622dd92
1 changed files with 9 additions and 0 deletions
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9
src/borg/archiver.py
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@ -611,6 +611,15 @@ class Archiver:
for spec, func in tests:
print(f"{spec:<24} {size:<10} {timeit(func, number=100):.3f}s")
from borg.helpers.passphrase import Passphrase
print("KDFs (slow is GOOD, use argon2!) ===============================")
count = 5
for spec, func in [
("pbkdf2", lambda: Passphrase('mypassphrase').kdf(b'salt'*8, PBKDF2_ITERATIONS, 32)),
("argon2", lambda: Passphrase('mypassphrase').argon2(32, b'salt'*8, 3, 65536, 1, 'id')),
]:
print(f"{spec:<24} {count:<10} {timeit(func, number=count):.3f}s")
from borg.compress import CompressionSpec
print("Compression ====================================================")
for spec in [