Python Examples of ecdsa.SigningKey - ProgramCreek
Python Examples of ecdsa.SigningKey - ProgramCreek
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Newest 'ecdsa' Questions - Stack Overflow
[UPDATE] Could someone please help me decipher the json data coming back form https://blockchain.info/rawaddr/WALLET_ADDRESS?
Hi guys, the other day I made a post requesting help understanding the transaction data of a bitcoin transaction. The data I was referring to is the json that is spit out by blockchain.info rawaddr data api call. My initial objective was to simply create a function that would accept two parameters, FROM_WALLET_ADDRESS and TO_WALLET_ADDRESS and return all the bitcoin transactions that occurred between the two. I thought I could quickly do this without needing to understand exactly what was going on under the hood, however, with some help and direction to a wiki, I realized I better just read up on it, and educate myself about the transaction data. As a show of gratitude for to the community and for the sake of sharing knowledge for the those who are might be as lazy as I am at times, here is what I've learned. If I've understood something incorrectly, please do point it out, thank you! Some cool related fact I came across as I was doing my research!
bitcoin addresses are derived hashing the public key using the ECDSA!
Most hash values you see are Double Computed Hash - meaning the hash function is applied twice i.e. sha256(sha256('hello'))
Now this is the data set I was trying to understand last time:
ver: the version of the node making the outgoing connection, and identifying the protocol being used
inputs: Records which reference the funds being transferred to this address from other previous transactions
relayed_by: Whether or not a peer relayed transactions, see BIP 0037
out: Records which determine the new owner of the transferred Bitcoins. NOTE: Under certain conditions, the amount of bitcoins sent, can sometimes exceed the sum intended, and it is returned in to the sender in the form of an outputs row. This is one thing that confused me when I was trying to wing it and figure it out what the data was
lock_time: Allows you to send bitcoins, yet lock them (prevent them from being spent) until a certain time is met .
result: The total amount of bitcoins this transaction involved.
size: No clue what this is - I'm going to take a WILD guess and say its the size of this transaction in bytes
time: The linux time that the transaction took place
tx_index:I believe this is the index id associated to this transaction?
vin_sz: Number of inputs [inputs].
hash: This is the Markel root, that uses all the related byte transactions associated to this particular transaction to generate the root hash value.
vout_sz: Number of out [out].
I want to Thank both gamedevelopersguild and veqtrus for their support and patience with me. PS - /bitcoin Mods can you please unban gamedevelopersguild, he has demonstrated a clear desire to support and advance the cause of the bitcoin community and its members! Thank you!
ECDSA parameters are not aligned between pem file and debug process. I create an ECDSA key pair by below command openssl ecparam -name secp256k1 -out secp256k1.pem openssl ecparam -in secp256k1.pem -genkey -noout -out secp256k1-key.pem openssl ec -in secp256k1-key.... openssl ecdsa. asked May 23 at 1:48. user3584600. 51 1 1 silver badge 4 4 bronze badges. 0. votes. 1answer 87 views Converting ... Technical background of version 1 Bitcoin addresses Conversion from ECDSA public key to Bitcoin Address This article may be too technical for some users. The more basic article on Bitcoin Addresses may be more appropriate. A Bitcoin address is a 160-bit hash of the public portion of a public/private ECDSA keypair. Using public-key cryptography , you can "sign" data with your private key and ... The Bitcoin system’s signature algorithm is based on elliptic curves , and their scheme is to prevent double-spending attacks through ECDSA signature vulnerabilities . That is, if the signature uses the same random number twice, the private key of the signature will be exposed. Their scheme sets the user’s payment account to single-use through a special Bitcoin script. Once the user ... ECDSA parameters are not aligned between pem file and debug process. I create an ECDSA key pair by below command openssl ecparam -name secp256k1 -out secp256k1.pem openssl ecparam -in secp256k1.pem -genkey -noout -out secp256k1-key.pem openssl ec -in secp256k1-key.... openssl ecdsa. asked May 23 at 1:48. user3584600. 71 1 1 silver badge 5 5 bronze badges. 1. vote. 0answers 25 views Having ... The following are 18 code examples for showing how to use ecdsa.SigningKey().These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.
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