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Update key-to-address-ecc-example.py

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The code is very possible to miss a leading '0'.
E.g:
Private Key (hex) is: 57c003d31cca32f79a22e70334fff37875617e89c04d2746b5efc22067ccb8fd
Before: Compressed Public Key (hex) is: 03 8f0de2360796ae0fe17f1a2b0be30af6fb45eccc4a1c7afb5ebea21d041b6e0
After: Compressed Public Key (hex) is: 03 08f0de2360796ae0fe17f1a2b0be30af6fb45eccc4a1c7afb5ebea21d041b6e0

The bug is in the pybitcointools, but it is not updated, we can only repair it ourselves.
This commit is contained in:
ZhaoChunsheng 2018-01-27 21:56:25 +08:00 committed by GitHub
parent 2d01be5381
commit 5460eb7a8d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
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code/key-to-address-ecc-example.py
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@ -35,7 +35,7 @@ print("Public Key (hex) is:", hex_encoded_public_key)
# Compress public key, adjust prefix depending on whether y is even or odd
(public_key_x, public_key_y) = public_key
compressed_prefix = '02' if (public_key_y % 2) == 0 else '03'
hex_compressed_public_key = compressed_prefix + bitcoin.encode(public_key_x, 16)
hex_compressed_public_key = compressed_prefix + (bitcoin.encode(public_key_x, 16).zfill(64))
print("Compressed Public Key (hex) is:", hex_compressed_public_key)
# Generate bitcoin address from public key