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https://github.com/bitcoinbook/bitcoinbook
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50 lines
1.9 KiB
Python
50 lines
1.9 KiB
Python
import bitcoin
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# Generate a random private key
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valid_private_key = False
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while not valid_private_key:
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private_key = bitcoin.random_key()
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decoded_private_key = bitcoin.decode_privkey(private_key, 'hex')
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valid_private_key = 0 < decoded_private_key < bitcoin.N
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print "Private Key (hex) is: ", private_key
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print "Private Key (decimal) is: ", decoded_private_key
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# Convert private key to WIF format
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wif_encoded_private_key = bitcoin.encode_privkey(decoded_private_key, 'wif')
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print "Private Key (WIF) is: ", wif_encoded_private_key
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# Add suffix "01" to indicate a compressed private key
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compressed_private_key = private_key + '01'
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print "Private Key Compressed (hex) is: ", compressed_private_key
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# Generate a WIF format from the compressed private key (WIF-compressed)
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wif_compressed_private_key = bitcoin.encode_privkey(
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bitcoin.decode_privkey(compressed_private_key, 'hex'), 'wif')
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print "Private Key (WIF-Compressed) is: ", wif_compressed_private_key
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# Multiply the EC generator point G with the private key to get a public key point
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public_key = bitcoin.fast_multiply(bitcoin.G, decoded_private_key)
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print "Public Key (x,y) coordinates is:", public_key
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# Encode as hex, prefix 04
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hex_encoded_public_key = bitcoin.encode_pubkey(public_key,'hex')
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print "Public Key (hex) is:", hex_encoded_public_key
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# Compress public key, adjust prefix depending on whether y is even or odd
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(public_key_x, public_key_y) = public_key
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if (public_key_y % 2) == 0:
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compressed_prefix = '02'
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else:
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compressed_prefix = '03'
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hex_compressed_public_key = compressed_prefix + bitcoin.encode(public_key_x, 16)
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print "Compressed Public Key (hex) is:", hex_compressed_public_key
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# Generate bitcoin address from public key
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print "Bitcoin Address (b58check) is:", bitcoin.pubkey_to_address(public_key)
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# Generate compressed bitcoin address from compressed public key
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print "Compressed Bitcoin Address (b58check) is:", \
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bitcoin.pubkey_to_address(hex_compressed_public_key)
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