def gen_key_pair():
pk = random_key()
wif = encode_privkey(pk, 'wif')
data = encode_pubkey(privtopub(pk), 'bin_compressed')
data = data + ripmed160(data)[:4]
pubkey = "EOS" + b58encode(data).decode('utf8')
return wif, pubkey
def print_pub(sig_hash, sig):
ds = DataStream()
print("Signature => %s" % sig)
ds.pack_signature(sig)
sig0 = ds.getvalue()[1:]
#print(len(sig0))
#print(sig0)
v, r, s = from_byte_to_int(sig0[0]), decode(sig0[1:33],
256), decode(sig0[33:], 256)
# v,r,s = decode_sig(sig0[1:])
#print(v,r,s)
Q = ecdsa_raw_recover(sig_hash, (v, r, s))
pub = encode_pubkey(Q, 'hex_compressed') if v >= 31 else encode_pubkey(
Q, 'hex')
#print(pub)
ds = DataStream(bytes.fromhex("00" + pub))
pub0 = ds.unpack_public_key()
print(" |----> ", pub0)
# Add suffix "01" to indicate a compressed private key
compressed_private_key = private_key + '01'
print("Private Key Compressed (hex) is: ", compressed_private_key)
# Generate a WIF format from the compressed private key (WIF-compressed)
wif_compressed_private_key = cryptos.encode_privkey(
cryptos.decode_privkey(compressed_private_key, 'hex'), 'wif')
print("Private Key (WIF-Compressed) is: ", wif_compressed_private_key)
# Multiply the EC generator point G with the private key to get a public key point
public_key = cryptos.fast_multiply(cryptos.G, decoded_private_key)
print("Public Key (x,y) coordinates is:", public_key)
# Encode as hex, prefix 04
hex_encoded_public_key = cryptos.encode_pubkey(public_key, 'hex')
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 + (cryptos.encode(
public_key_x, 16).zfill(64))
print("Compressed Public Key (hex) is:", hex_compressed_public_key)
# Generate bitcoin address from public key
print("Bitcoin Address (b58check) is:", cryptos.pubkey_to_address(public_key))
# Generate compressed bitcoin address from compressed public key
print("Compressed Bitcoin Address (b58check) is:",
cryptos.pubkey_to_address(hex_compressed_public_key))
def get_pub_key(pk):
data = encode_pubkey(privtopub(pk), 'bin_compressed')
data = data + ripmed160(data)[:4]
pubkey = "EOS" + b58encode(data).decode('utf8')
return pubkey