def generate(cur, bip=False):
"""
public and private key generator.
optional BIP0038 encryption
"""
#check that the given currency is in the system
conn = db.open()
c = conn.cursor()
#pull the version details from the database
c.execute('select v.version,v.prefix,v.length,c.id,c.longName,c.version from inuit_versions as v inner join inuit_currencies as c on c.version = v.id where c.currency=?;', (cur.upper(),))
version = c.fetchone()
if version is None:
print(cur.upper() + ' is not currently listed as a currency')
return False
#randomly choose a prefix if multiples exist
prefixes = version[1].split('|')
prefix = prefixes[random.randint(0, (len(prefixes)-1))]
#generate the private and public keys
privateKey = rand.randomKey(inp.keyboardEntropy())
privK256 = enc.encode(privateKey, 256, 32)
publicAddress = publicKey2Address(privateKey2PublicKey(privateKey), version[0], prefix, version[2])
#optional BIP0038 encryption
get.flushKeybuffer(get._Getch())
encrypt = 'y'
if encrypt == 'y':
bipPass1 = 'pass1'
bipPass2 = 'pass2'
while bipPass1 != bipPass2 or len(bipPass1) < 1:
bipPass1 = inp.secure_passphrase('Enter your BIP0038 passphrase')
bipPass2 = inp.secure_passphrase('Re-enter your passphrase to confirm')
if bipPass1 != bipPass2:
print('The passphrases entered did not match.')
elif len(bipPass1) < 1:
print('No passphrase was entered!')
reminder = raw_input('Enter an optional reminder for your password : '******'')
#print('Enter the number of rounds of encryption.')
#p = raw_input('A smaller number means quicker but less secure. (8) : ').strip()
#p = 8 if p == '' else int(p)
p = 8
privK = bip38.encrypt(privK256, publicAddress, bipPass1, p)
isBip = True
else:
privK = privateKey
isBip = False
#save details to the database
c.execute('insert into inuit_privK (privK, currency) values (?,?);', (str(privK).encode('base64','strict'), version[3]))
privKid = c.lastrowid
c.execute('insert into inuit_addresses (address, currency) values (?,?);', (publicAddress.encode('base64','strict'), version[3]))
addId = c.lastrowid
c.execute('insert into inuit_master (address, privK, version) values (?,?,?);', (addId, privKid, version[5]))
if isBip is True:
c.execute('insert into inuit_bip (privK, reminder, p) values (?,?,?);', (privKid, reminder, p))
db.close(conn)
print('')
print(version[4] + ' Address : ' + publicAddress)
return privK, publicAddress
def keyboardEntropy(keynum=64):
"""
512 bit random number from keyboard and keypress timer
"""
keypress = get._Getch()
typed = kr = 'Press some keys to generate a secure address...'
hashes = rand.clockrnd()
print(kr)
for step in range(keynum, 0, -1):
for cnt in xrange(10000000): # only loops on OSX
hashes ^= rand.clockrnd()
kr = keypress()
get.flushKeybuffer(keypress)
if kr != '':
break
typed += kr
hashes ^= rand.clockrnd()
out.prnt('\b\b\b\b\b\b{0:4d}\b\b\b\b\b'.format(step-1))
get.flushKeybuffer(keypress)
out.prnt('\b\b\b\b\b\b{0:4s}\b\b\b\b\b\n'.format(' OK'))
get.flushKeybuffer(keypress)
return hashes ^ int(hashlib.sha512(typed*8).hexdigest(), 16)