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Topic: transactions & signatures in depth questions - page 2. (Read 1323 times)

Gol
newbie
Activity: 47
Merit: 0
^^^thank you.

1. wallet  address(like:1QKuiPibmXDNMtSNNYYmpFczZViRz9AzEF) is(the actual number) the result of privet key+ public key only?
when referring to the number above, is saying: wallet address, public address, public key are all the same?
legendary
Activity: 1092
Merit: 1016
760930
in here:
https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses

there is a image data named "Conversion from ECDSA public key to Bitcoin Address"
1. using 32bytes X 2 is it Uncompressed (https://en.bitcoin.it/wiki/Elliptic_Curve_Digital_Signature_Algorithm)?
2. what is the (BE) next to the 32bytes mean?



1. Uncompressed

2. BE means Big Endian - http://en.wikipedia.org/wiki/Endianness
Gol
newbie
Activity: 47
Merit: 0
in here:
https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses

there is a image data named "Conversion from ECDSA public key to Bitcoin Address"
1. using 32bytes X 2 is it Uncompressed (https://en.bitcoin.it/wiki/Elliptic_Curve_Digital_Signature_Algorithm)?
2. what is the (BE) next to the 32bytes mean?



legendary
Activity: 3472
Merit: 4801
wow thank you for the reply!
at least half of them i read already, my questions about the process of the signature remain

Question about process of the signature?

Each input is signed with an ECDSA digital signature of a digest of the transaction.  The ECDSA signature is calculated on the Secp256k1 curve using a private key that is associated with the address that the bitcoins were received at.
legendary
Activity: 3472
Merit: 4801
https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses:

1. the info image describing the process is it Uncompressed or compressed?
i think its compressed cus the 32bytsX2 but i am not sure...

The image indicates an address generated from RIPEMD160(SHA256(32 byte X_Integer and 32 byte Y_integer))

Therefore it is uncompressed.

Gol
newbie
Activity: 47
Merit: 0
wow thank you for the reply!
at least half of them i read already, my questions about the process of the signature remain, but i am going to read it again.

https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses:

1. the info image describing the process is it Uncompressed or compressed?
i think its compressed cus the 32bytsX2 but i am not sure...
legendary
Activity: 3472
Merit: 4801
Hello all,
my aim to know everything there is on Bitcoin and cryptocurrencies-in depth, i am autodidact.
i have been reading a lot on the subject, did a search here and google(even bing...).


transactions-A want to send 3 coins to B:

A got a wallet address from B, A uses the address and hits "Send".
1. "on send" what protocol(s) is(are) been used?
2. what are the steps(for sender to block) until the transaction in been hash into a block?

Start here:
http://bitcoin.org/bitcoin.pdf

Next read through these and any associated links:
https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses
https://en.bitcoin.it/wiki/Transactions
https://en.bitcoin.it/wiki/Blocks
https://en.bitcoin.it/wiki/Block_chain
https://en.bitcoin.it/wiki/Mining
https://en.bitcoin.it/wiki/Transaction_fees
https://en.bitcoin.it/wiki/Controlled_supply

The entire source code is available to the public, so if you have the ability any specific questions can be answered by reading through the appropriate portions of the code here:
https://github.com/bitcoin/bitcoin
 
Once you've gotten through the whitepaper and the wiki links, come back and ask any specific questions you might have.

3. B wallet address is: private Key+public Key=+transaction message=basically a message with cryptographic signature?

No.  See here:
https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses
and here:
https://en.bitcoin.it/wiki/Transactions

4. the receiving side is the one that allways creating the signatures?

No.  See here:
http://bitcoin.org/bitcoin.pdf
and here:
https://en.bitcoin.it/wiki/Transactions
Gol
newbie
Activity: 47
Merit: 0
Hello all,
my aim to know everything there is on Bitcoin and cryptocurrencies-in depth, i am autodidact.
i have been reading a lot on the subject, did a search here and google(even bing...).


transactions-A want to send 3 coins to B:

A got a wallet address from B, A uses the address and hits "Send".
1. "on send" what protocol(s) is(are) been used?
2. what are the steps(for sender to block) until the transaction in been hash into a block?
3. B wallet address is: private Key+public Key=+transaction message=basically a message with cryptographic signature?
4. the receiving side is the one that allways creating the signatures?


Thank you.
Gol
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