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Privacy & security

Privacy and security measures are often the first technologies to evolve in the blockchain space. As these measures grow and become applied more widely, this space will bring them to the forefront.

Privacy & security

Coinpunk is Making an Unbannable iOS Wallet

Apple has been slashing and dashing apps that serve as Bitcoin wallets or even connect to other 3rd party wallets. Here is a short list of the companies affected by Apple’s ban. Bitcoin Express Bitpak Blockchain.info (Full version still available on Cydia for jailbroken iPhones) Coinbase Coinjar Gliph If you haven’t seen Apple’s take down message here is a […]

Jan 24, 2014
Privacy & security

How to Secure a Blockchain with Zero Energy

Proof of Work (PoW) is the only external method of powering the distributed consensus engine known as a blockchain. However, at least two alternatives have been proposed, and both are internal to the network (Proof of Stake (PoS), and Proof of Burn (PoB)). These are important as they use virtual resources obtained within the network […]

Jan 16, 2014
Privacy & security

Bitcoin Magazine Stands in Solidarity with the Internet Defense League

Bitcoin Magazine applauds the work for the Internet Defense League (IDL) in taking a stand against the U.S. Government’s NSA internet surveillance.  As July 4th marks Independence Day in the United States, it also marks IDL’s protest for privacy in support of actions on the ground in cities around the country.  IDL is planning for this protest […]

Jul 4, 2013
Privacy & security

TorBroker: Anonymous Finance and Trust

In late March, the cryptic underworld of the Tor hidden service ecosystem added a new service to its midst: TorBroker, a gateway for Bitcoin users to the stock markets of the mainstream world. This is not the first service to do such a thing; ICBit has been doing the same, albeit in a very limited […]

Jun 13, 2013
Privacy & security

Use Secure Passwords for your Self-Generated Private Keys

One of the lesser known features of Bitcoin is that the private keys, which form the basis for a Bitcoin address, do not need to be generated randomly; instead, one can generate a Bitcoin address, fully compatible with Blockchain.info’s wallet and Armory, using nothing but standard easily available cryptographic tools and a password of your […]

Aug 11, 2012
Privacy & security

Some Measure of Anonymity

As world governments, corporations and individuals create and employ new surveillance technologies there will always be situations where privacy and discretion are of the utmost importance, especially in financial matters. Bitcoin is commonly referred to as an anonymous currency, but that’s not inherently true and the technicalities of the issue have been the topic of […]

May 9, 2012
Privacy & security

Instawallets

After the failure of MyBitcoin in August, managed online wallets have become much less popular unless there is some compelling feature that makes them more convenient (eg. also being a currency exchange), although the one that remains is Instawallet.   Its advantages include: Very easy to use – you don’t even need an account, going […]

Feb 29, 2012
Privacy & security

Traditional Bitcoin Client/Wallet

Traditional Bitcoin clients are ordinary programs that you download onto your computer. Receiving, verifying and sending transactions is all done from your machine and your computer connects to the Bitcoin network directly. Advantages include: Not reliant on any outside service except for the Bitcoin blockchain itself The possibility of much more privacy – your transactions […]

Feb 29, 2012
Privacy & security

Offline USB/CD and Paper Bitcoin Wallets

You can also store your wallet offline either on a digital medium like a CD or USB key or on paper. A private key for an address, which allows you to send transactions with it, is really quite small; for example, the bitcoin address 17CXktyFpiMYpPktkSVWhgbMGj27QA3jNY has the private key 5Jr8W5D5zsjq9ckX26rz5imJqNVUmPSrP9PJYujFowQKvuLoHMt. Those two strings are all […]

Feb 29, 2012