Counter Entropy ?

[CounterEntropy]

Reverse engineering possible ?

[someguy123]

Uhm... A little vague?

I think people might be able to help you if you actually gave some more details. I'm very uncertain what to make of your post.

[CounterEntropy]

Uhm... A little vague?

I think people might be able to help you if you actually gave some more details. I'm very uncertain what to make of your post.

If you're using private keys generated from standard pseudorandom sequence of numbers generated in programming languages like C or C++, the total possible number of private keys that can be generated that way is: 4294967296 (if you're using programs written in Java, the number is: 281474976710656).

Source: https://www.offlineaddress.com/?site=about#security-risk

Moreover, 1/100 probability does not mean the collision will be at 100th time. It may happen at 1st time as well.

So, can reverse engineering this public/private combination possible ?

I have encountered a new kind of randomness in bitaddress.org. It is based on mouse movement. Do u people think it makes thing difficult or easier ?

[DannyHamilton]

Uhm... A little vague?

I think people might be able to help you if you actually gave some more details. I'm very uncertain what to make of your post.

If you're using private keys generated from standard pseudorandom sequence of numbers generated in programming languages like C or C++, the total possible number of private keys that can be generated that way is: 4294967296 (if you're using programs written in Java, the number is: 281474976710656).

Source: https://www.offlineaddress.com/?site=about#security-risk

Moreover, 1/100 probability does not mean the collision will be at 100th time. It may happen at 1st time as well.

So, can reverse engineering this public/private combination possible ?

I have encountered a new kind of randomness in bitaddress.org. It is based on mouse movement. Do u people think it makes thing difficult or easier ?

Most well written bitcoin wallets use programming that provides a bit less than 1.16X10⁷⁷ possible private keys. Therefore the probability of collision is much closer to 0% than you imagine.

[DannyHamilton]

How come entropy is related to Bitcoin ?

Because private keys are randomly generated.  It is important that the key not be predictable:
http://en.wikipedia.org/wiki/Entropy_%28computing%29

[CounterEntropy]

Uhm... A little vague?

I think people might be able to help you if you actually gave some more details. I'm very uncertain what to make of your post.

If you're using private keys generated from standard pseudorandom sequence of numbers generated in programming languages like C or C++, the total possible number of private keys that can be generated that way is: 4294967296 (if you're using programs written in Java, the number is: 281474976710656).

Source: https://www.offlineaddress.com/?site=about#security-risk

Moreover, 1/100 probability does not mean the collision will be at 100th time. It may happen at 1st time as well.

So, can reverse engineering this public/private combination possible ?

I have encountered a new kind of randomness in bitaddress.org. It is based on mouse movement. Do u people think it makes thing difficult or easier ?

Most well written bitcoin wallets use programming that provides a bit less than 1.16X10⁷⁷ possible private keys. Therefore the probability of collision is much closer to 0% than you imagine.

From a i/p of n how come some software provide n^x entropy w/o using any 3rd random salt ?

[Cryptopher]

How come entropy is related to Bitcoin ?

Cryptography is all about entropy, real entropy is the basis for sound key generation.

[DannyHamilton]

AFAIK real entropy can take place only in real world. Inside computer n/w everything is a product of a pattern (even the PRNG). How can we xpect real entropy in a computer ?

http://en.wikipedia.org/wiki/Entropy_%28computing%29

[CounterEntropy]

AFAIK real entropy can take place only in real world. Inside computer n/w everything is a product of a pattern (even the PRNG). How can we xpect real entropy in a computer ?

http://en.wikipedia.org/wiki/Entropy_%28computing%29

At the top of the article, it is written that This article needs attention from an expert in Cryptography. So, can we trust what is written in this article ?

[afkmember]

No real entropy in a computer everything is deterministic

[zhinkk]

How come entropy is related to Bitcoin ?

Because private keys are randomly generated.  It is important that the key not be predictable:
http://en.wikipedia.org/wiki/Entropy_%28computing%29

AFAIK real entropy can take place only in real world. Inside computer n/w everything is a product of a pattern (even the PRNG). How can we xpect real entropy in a computer ?

But don't really good entropy systems TAKE the entropy from the "real world" you're referring to? As in noise and such.

[amaclin]

No real entropy in a computer everything is deterministic

mouse movings...
key presses...
http://en.wikipedia.org/wiki/RdRand

[afkmember]

No real entropy in a computer everything is deterministic

mouse movings...
key presses...
http://en.wikipedia.org/wiki/RdRand

Not true random if it has a pattern its not trully random its pseudorandom