def frompubkey(key):
self= PublicKey()
if len(key)==33 and (ord(key[0])==2 or ord(key[0])==3):
self.point= ecdsa.ec.decompress(convert.numfrombytes(key[1:]), ord(key[0])-2)
elif len(key)==65 and ord(key[0])==4:
self.point= ecdsa.ec.point(convert.numfrombytes(key[1:33]), convert.numfrombytes(key[33:65]))
else:
print(key.encode("hex"))
raise Exception("invalid point representation")
return self
def frompubkey(key):
self= PublicKey()
if len(key)==33 and (ord(key[0])==2 or ord(key[0])==3):
self.point= ecdsa.ec.decompress(convert.numfrombytes(key[1:]), ord(key[0])-2)
elif len(key)==65 and ord(key[0])==4:
self.point= ecdsa.ec.point(convert.numfrombytes(key[1:33]), convert.numfrombytes(key[33:65]))
else:
print key.encode("hex")
raise Exception("invalid point representation")
return self
def fromwallet(b58):
self= PrivateKey()
data= base58.decode(b58)
if not len(data) in (37, 38):
print("wallet len != 37/38: %s" % data.encode("hex"))
raise Exception("Invalid wallet length")
self.version= ord(data[0:1])
self.privkey= convert.numfrombytes(data[1:33])
if len(data)==38:
# todo: ?? what is this for?
self.compressed= ord(data[33])
if shasha(data[:-4])[:4] != data[-4:]:
print("wallet: %s: %s != %s" % (data[:33].encode("hex"), data[33:].encode("hex"), shasha(data[0:33])[:4]))
raise Exception("Invalid base58 checksum")
return self
def fromwallet(b58):
self= PrivateKey()
data= base58.decode(b58)
if not len(data) in (37, 38):
print "wallet len != 37/38: %s" % data.encode("hex")
raise Exception("Invalid wallet length")
self.version= ord(data[0])
self.privkey= convert.numfrombytes(data[1:33])
if len(data)==38:
# todo: ?? what is this for?
self.compressed= ord(data[33])
if shasha(data[:-4])[:4] != data[-4:]:
print "wallet: %s: %s != %s" % (data[:33].encode("hex"), data[33:].encode("hex"), shasha(data[0:33])[:4])
raise Exception("Invalid base58 checksum")
return self
def fromprivkey(key):
self= PrivateKey()
self.privkey= convert.numfrombytes(key)
return self
def fromminikey(key):
h= SHA256.new()
h.update(key)
self= PrivateKey()
self.privkey= convert.numfrombytes(h.digest())
return self
def fromprivkey(key):
self= PrivateKey()
self.privkey= convert.numfrombytes(key)
return self
def fromminikey(key):
h= SHA256.new()
h.update(key)
self= PrivateKey()
self.privkey= convert.numfrombytes(h.digest())
return self
