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doc: fix sage code for deriving alternative generator H

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The expression `G.decode('hex')` fails with the following error message
on Sage 9.5:

AttributeError: 'str' object has no attribute 'decode'

Fix that by converting the hex-string to bytes using `bytes.fromhex`.
This commit is contained in:
Sebastian Falbesoner 2024-05-07 19:38:51 +02:00
parent a7907b1af2
commit 7040a20247
1 changed files with 1 additions and 1 deletions
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src/modules/generator/main_impl.h
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@ -24,7 +24,7 @@
import hashlib import hashlib
F = FiniteField (0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F) F = FiniteField (0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F)
G = '0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8' G = '0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8'
H = EllipticCurve ([F (0), F (7)]).lift_x(F(int(hashlib.sha256(G.decode('hex')).hexdigest(),16))) H = EllipticCurve ([F (0), F (7)]).lift_x(F(int(hashlib.sha256(bytes.fromhex(G)).hexdigest(),16)))
print('%x %x' % H.xy()) print('%x %x' % H.xy())
*/ */
static const secp256k1_generator secp256k1_generator_h_internal = {{ static const secp256k1_generator secp256k1_generator_h_internal = {{