Potentially Unwanted Programs or PUPs as we like to call them, are things like Toolbars, Search Agents, etc. Unnecessary junk for your desktop that usually involves monitoring your surfing/shopping habits and slowing down your system with their sub-par software that ends up hurting you much more than helping.
Those of us old enough to remember using Navigator to browse the Web over a Winsock connection on a 56k baud modem can attest that it was not the amazing experience we take for granted today. In fact, if you couldn't see that the technology would evolve, you would have concluded that it was practically useless. For one thing, there was no easy way to find things on the Web. Well, we didn't get Google until 1998.
To explain what's on the paper: I've written each block A through H in hex on a separate row and put the binary value below. The maj operation appears below C, and the shifts and Σ0 appear above row A. Likewise, the choose operation appears below G, and the shifts and Σ1 above E. In the lower right, a bunch of terms are added together, corresponding to the first three red sum boxes. In the upper right, this sum is used to generate the new A value, and in the middle right, this sum is used to generate the new E value. These steps all correspond to the diagram and discussion above.
Now, suppose Alice wants to transfer an infocoin to Bob. She signs the message I, Alice, am giving Bob one infocoin, with serial number 1234567″, and gives the signed message to Bob. Bob can use his copy of the block chain to check that, indeed, the infocoin is Alice's to give. If that checks out then he broadcasts both Alice's message and his acceptance of the transaction to the entire network, and everyone updates their copy of the block chain.
It is the hacker's way of targeting our bitcoins. Most likely, this stealing is due to the skillful ability of programmers to monitor and track our computer tasks and schedules. I have read an article in Bitcoin Gambling Daily News on ways to avoid stealing our bitcoins and scenarios we need to be aware of.
Those of us old enough to remember using Navigator to browse the Web over a Winsock connection on a 56k baud modem can attest that it was not the amazing experience we take for granted today. In fact, if you couldn't see that the technology would evolve, you would have concluded that it was practically useless. For one thing, there was no easy way to find things on the Web. Well, we didn't get Google until 1998.To explain what's on the paper: I've written each block A through H in hex on a separate row and put the binary value below. The maj operation appears below C, and the shifts and Σ0 appear above row A. Likewise, the choose operation appears below G, and the shifts and Σ1 above E. In the lower right, a bunch of terms are added together, corresponding to the first three red sum boxes. In the upper right, this sum is used to generate the new A value, and in the middle right, this sum is used to generate the new E value. These steps all correspond to the diagram and discussion above.
Now, suppose Alice wants to transfer an infocoin to Bob. She signs the message I, Alice, am giving Bob one infocoin, with serial number 1234567″, and gives the signed message to Bob. Bob can use his copy of the block chain to check that, indeed, the infocoin is Alice's to give. If that checks out then he broadcasts both Alice's message and his acceptance of the transaction to the entire network, and everyone updates their copy of the block chain.
It is the hacker's way of targeting our bitcoins. Most likely, this stealing is due to the skillful ability of programmers to monitor and track our computer tasks and schedules. I have read an article in Bitcoin Gambling Daily News on ways to avoid stealing our bitcoins and scenarios we need to be aware of.