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Support Python 3.8 in hs_build_address.py

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The Python code is such a nice addition to the documentation and the C
code for better understanding of onion v3 address generation. Straight
to the point and easy to understand.

Unfortunately it did not work with my distribution's Python version. I
have adjusted the code to support Python 3.8 (tested with 3.8.6) and
to still be compatible with Python 2.
This commit is contained in:
Samanta Navarro 2020-11-28 11:36:55 +00:00
parent 7640631539
commit 2a06b7c3b8
1 changed files with 11 additions and 3 deletions
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14
src/test/hs_build_address.py
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@ -10,17 +10,21 @@ import base64
# Python 3.6+, the SHA3 is available in hashlib natively. Else this requires
# the pysha3 package (pip install pysha3).
TEST_INPUT = b"Hello World"
if sys.version_info < (3, 6):
import sha3
m = sha3.sha3_256(TEST_INPUT)
else:
m = hashlib.sha3_256(TEST_INPUT)
# Test vector to make sure the right sha3 version will be used. pysha3 < 1.0
# used the old Keccak implementation. During the finalization of SHA3, NIST
# changed the delimiter suffix from 0x01 to 0x06. The Keccak sponge function
# stayed the same. pysha3 1.0 provides the previous Keccak hash, too.
TEST_VALUE = "e167f68d6563d75bb25f3aa49c29ef612d41352dc00606de7cbd630bb2665f51"
if TEST_VALUE != sha3.sha3_256(b"Hello World").hexdigest():
if TEST_VALUE != m.hexdigest():
print("pysha3 version is < 1.0. Please install from:")
print("https://github.com/tiran/pysha3https://github.com/tiran/pysha3")
print("https://github.com/tiran/pysha3")
sys.exit(1)
# Checksum is built like so:
@ -28,7 +32,11 @@ if TEST_VALUE != sha3.sha3_256(b"Hello World").hexdigest():
PREFIX = ".onion checksum".encode()
# 32 bytes ed25519 pubkey from first test vector of
# https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-02#section-6
PUBKEY = "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a".decode('hex')
PUBKEY_STRING = "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a"
if sys.version_info < (3, 0):
PUBKEY = PUBKEY_STRING.decode('hex')
else:
PUBKEY = bytes.fromhex(PUBKEY_STRING)
# Version 3 is proposal224
VERSION = 3