Linked Questions

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1answer
1k views

Is it possible to hack an ethereum account? [duplicate]

I want to know if is it possible to hack an Ethereum account?
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1answer
59 views

Is it possible to have multiple private keys for a single public address? [duplicate]

Since the ratio of all possible digits (please correct my math if I am wrong) of a public key versus private is: 1/79228162514264337593543950336 for public (40^16): 1 461 501 637 330 902 918 203 684 ...
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1answer
69 views

Why the amount of private key is more than that of public address? [duplicate]

See:the amount of private key is 16^64,the amount of public address is 16^40,so the amount of private key is way more than that of public address. But one private key can only generate one public ...
118
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5answers
83k views

How are ethereum addresses generated?

What criteria does a valid Ethereum address need to fulfill? Is it just a random number in hexadecimal? Or does it need to be derived in a specific way, according to some cryptographic algorithms? ...
21
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3answers
4k views

Account uniqueness guaranteed?

When we create an account in the Ethereum main network, how does the protocol guarantee the unique address of an account? Since even if we are not connected to the network we can create an account, is ...
17
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1answer
2k views

What if I had the private key that had the public address of a contract?

Could I spend the money a contract owns if I had the private key that goes to the public address that a contract resides at? (I realize that I'd have a better chance of being struck by lightning ...
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3answers
3k views

How to generate multiple eth-addresses from one private key? [duplicate]

Is it possible to generate different multiple eth-addresses from one private key? The goal is to implement a JavaScript service that will allow a user to buy a subscription using cryptocurrency. ...
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5answers
503 views

Can I easily generate a public address which has no private key?

I might be wrong in some of the facts that I state here, so please correct me if necessary. My understanding: Private key - 256 bits Public key - 256 bits Public address - the last 160 bits of a ...
2
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1answer
1k views

Are addresses between different networks (testnet) interchangeable?

I am designing user interface having both Ethereum mainnet and testnet addresses. Is it possible for the user to accidentally give testnet address when withdrawing in mainnet and vice versa? How can ...
6
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2answers
2k views

How does Ethereum avoid address collision?

Recently PillarProject reported an issue where there was collision (?) of sort. Apparently their smart contract address on Rinkeby testnet matched with real address on the mainnet. I am aware that ...
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1answer
767 views

How does a node generate an address?

I am playing around with geth to understand the principles of the ethereum network. One thing I keep asking myself is how does a public address get created? For example, you can run an offline ...
2
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2answers
431 views

What will happen if 2 cold storage (Ether) generates a same private key

I am new to crypto world trying to understand the Ether wallet generation process with the private key. Let us say 2 person A and B are buying a cold storage device "Ledger Nano S" and setting it up ...
2
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1answer
380 views

Are duplicate addresses rare or not?

I've read all over the place that two people receiving the same address is so astronomically high as to be almost impossible. But reading this question it seems that it's actually very possible that ...
0
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2answers
434 views

Ethereum address -> private key correspondance

It is known that Ethereum addresses are generated by hashing the pubkey (ref. this post). However, I'm not certain that a single pubkey corresponds to a single address. Use case I would like to ...
0
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2answers
162 views

Why the Ropsten test net I created have old transactions?

I created Ropsten testnet account through Metamask. But in Etherscan, it seems that it is already used account, because it has some already made transactions. Why this happens?

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