stechu

#!/usr/bin/env python3

from pyteal import *

#template variables
tmpl_fee = Int(1000)
tmpl_period = Int(1000)
tmpl_dur = Int(1000)
tmpl_x = Bytes("base64", "y9OJ5MRLCHQj8GqbikAUKMBI7hom+SOj8dlopNdNHXI=")
tmpl_amt = Int(2000)

NicolaBernini

corba777

markblundeberg

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Advisory: secret size attack on cross-chain hash lock smart contracts

Dr. Mark B Lundeberg, 2018 Feb 15 bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2

This security advisory notes a vulnerability in the common construction of cross-chain smart contracts (contracts between distinct cryptocurrencies) through hash locking. I focus on the primary use case in [atomic

addisonhuddy

# Singular Value Decomposition Example

import numpy as np

# example taken from Video Tutorials - All in One
# https://www.youtube.com/watch?v=P5mlg91as1c
a = np.array([[1, 1, 1, 0, 0],
              [3, 3, 3, 0, 0],
              [4, 4, 4, 0, 0],
              [5, 5, 5, 0, 0],

awjuliani

awjuliani

awjuliani

nunofernandes-plight

// Open the wallet console: Menu -> Develop -> Toggle console ...
// Run the following script

_.each(Wallets.find().fetch(), function(item){
    if(item.address)
        Wallets.update(item._id, {$set: {address: item.address.toLowerCase()}}); 
});
_.each(CustomContracts.find().fetch(), function(item){
    if(item.address)
        CustomContracts.update(item._id, {$set: {address: item.address.toLowerCase()}}); 

frozeman

// Open the wallet console: Menu -> Develop -> Toggle console ...
// Run the following script

_.each(Wallets.find().fetch(), function(item){
    if(item.address)
        Wallets.update(item._id, {$set: {address: item.address.toLowerCase()}}); 
});
_.each(CustomContracts.find().fetch(), function(item){
    if(item.address)
        CustomContracts.update(item._id, {$set: {address: item.address.toLowerCase()}});