def makeCryptor(privkey):
privkey_bin = '\x02\xca\x00 ' + a.changebase(privkey, 16, 256, minlen=32)
pubkey = a.changebase(a.privtopub(privkey), 16, 256, minlen=65)[1:]
pubkey_bin = '\x02\xca\x00 ' + pubkey[:32] + '\x00 ' + pubkey[32:]
cryptor = pyelliptic.ECC(curve='secp256k1',
privkey=privkey_bin,
pubkey=pubkey_bin)
return cryptor
def makePrivCryptor(privkey):
privkey_bin = '\x02\xca\x00 ' + arithmetic.changebase(privkey,
16, 256, minlen=32)
pubkey = arithmetic.changebase(arithmetic.privtopub(privkey),
16, 256, minlen=65)[1:]
pubkey_bin = '\x02\xca\x00 ' + pubkey[:32] + '\x00 ' + pubkey[32:]
cryptor = ec.ECC(curve='secp256k1', privkey=privkey_bin, pubkey=pubkey_bin)
return cryptor
def privToPub(privkey):
return a.privtopub(privkey)
def makeCryptor(privkey):
privkey_bin = "\x02\xca\x00 " + a.changebase(privkey, 16, 256, minlen=32)
pubkey = a.changebase(a.privtopub(privkey), 16, 256, minlen=65)[1:]
pubkey_bin = "\x02\xca\x00 " + pubkey[:32] + "\x00 " + pubkey[32:]
cryptor = pyelliptic.ECC(curve="secp256k1", privkey=privkey_bin, pubkey=pubkey_bin)
return cryptor
def privToPub(privkey):
return a.privtopub(privkey)
' random 32 byte values and call the first one the signing key'
' and the second one the encryption key:'
)
privateSigningKey = \
'93d0b61371a54b53df143b954035d612f8efa8a3ed1cf842c2186bfd8f876665'
privateEncryptionKey = \
'4b0b73a54e19b059dc274ab69df095fe699f43b17397bca26fdf40f4d7400a3a'
print(
'\nprivateSigningKey = %s\nprivateEncryptionKey = %s' %
(privateSigningKey, privateEncryptionKey)
)
print(
'\nNow let us convert them to public keys by doing'
' an elliptic curve point multiplication.'
)
publicSigningKey = arithmetic.privtopub(privateSigningKey)
publicEncryptionKey = arithmetic.privtopub(privateEncryptionKey)
print(
'\npublicSigningKey = %s\npublicEncryptionKey = %s' %
(publicSigningKey, publicEncryptionKey)
)
print(
'\nNotice that they both begin with the \\x04 which specifies'
' the encoding type. This prefix is not send over the wire.'
' You must strip if off before you send your public key across'
' the wire, and you must add it back when you receive a public key.'
)
publicSigningKeyBinary = \
arithmetic.changebase(publicSigningKey, 16, 256, minlen=64)
