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Questions tagged [blockcypher]

A block cipher is a symmetric encryption algorithm that encrypts arbitrary length input stream of plain text, by subdividing it into fixed size blocks and using an encryption key to produce output blocks of ciphertext.

What is it?

A block cipher is a symmetric encryption algorithm that encrypts arbitrary length input stream of plain text, by subdividing it into fixed size blocks and using an encryption key to produce output blocks of ciphertext.

How does it work?

Symmetric encryption algorithm are subdivided in block ciphers and stream ciphers. Block ciphers encrypt fixed blocks of plaintext bits. Stream ciphers encrypt each plain text digit one by one.

As a block cipher works block by block, it cannot produce a real-time stream and either works off-line or works by caching data, so that there is some lags when blocks can only be completed with delays.

See also

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Blockcypher error Non-canonical signature: wrong length marker

Im trying to sign a bitcoin testnet transaction using blockcypher but when I go to send the transaction I get the error: Error building input: Error generating scriptsig when building transaction: Invalid signature: Non-canonical signature: wrong…
brandbei37
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How to sign a BlockCypher transaction using bitcoinjs

Im trying to sign a BlockCypher transaction on the bitcoin testnet using bitcoinjs as described here but I keep getting the error: {"error": "Couldn't deserialize request: invalid character 'x' in literal true (expecting 'r')"} I have searched…
brandbei37
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How to decrypt a message using Aes128Cbc Rust

I am having a few issues trying to decrypt a message that I have saved to a text file. When trying to decrypt the message I get the error - "thread 'main' panicked at 'called Result::unwrap() on an Err value: BlockModeError'". Which really doesn't…
Jack F
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How to properly put the auth token in the header for a GET request

I have am trying to do a get request to api with blockcypher.com. In the docs they simply append the api token to the URL with ?token= or if it's part of multiple parameters &token=. What's the proper protocol for putting this in the headers to make…
ChristianOConnor
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FFI::NotFoundError (Function 'OPENSSL_init_ssl' not found in [libssl.dylib])

I'm using Mac OS for development. Now I'm developing an app using Blockcypher API. With Ruby on Rails, when I try to send money using the Gem, it always return this error FFI::NotFoundError (Function 'OPENSSL_init_ssl' not found in…
Fauzi Rachman
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What are the export controls of block cipher?

What are meant by export controls of block cipher ? I am new here . So I would be much thankful to you if you could supply some explanation with this . Thank you !
Nipuna Chandimal
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Blockcypher-python UnicodeError("label too long")

I'm having a nasty issue with Blockcypher for Python. A simple snippet code import sys from blockcypher import get_address_overview print(sys.version) print(sys.version_info) print(get_address_overview('1BTCorgHwCg6u2YSAWKgS17qUad6kHmtQW')) is…
Davide3i
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How to create a bitcoin-testnet transaction - blockcypher?

I'm new to cryptocurrencies and blockchain. I need to send testnet-bitcoins from one address to the other. I want to use the blockcypher api to create a transaction: https://www.blockcypher.com/dev/bitcoin/#creating-transactions I created two new…
Ishaan Singh
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Blockcypher Websocket endpoint not working

I am using the Blockcypher API for test bitcoin transactions and I have troubles with the websocket API endpoint. When sending the regular ping object after creating a new Websocket it works fine: this.ws.onopen = () => { …
Hans Tausend
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Accsing an API from console is working but same is not working with MVC web

I am trying to access BlockCypher from console Application which works absolutely fine. But when i am trying to access the same MVC Web Application, I am not getting the response from "BlockCypher". not sure why. here is the link i am…
Ram Singh
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Locally signing ECDSA transactions with Blockcypher API

So I'm using Blockcypher in a project of mine and I am following the guide presented here to create a new transaction: https://www.blockcypher.com/dev/bitcoin/?shell#creating-transactions I'm stuck at the part where you have to sign a transaction…
osii
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How do I get the total Wallet Balance in Blockcypher API?

I'm able to get address balances using their address balance endpoint: https://www.blockcypher.com/dev/bitcoin/?shell#address-balance-endpoint. But the API does not present any method to return Wallet Balances (since a Wallet consists of multiple…
didi2022
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Locally Sign ECDSA secp256k1 transactions Blockcypher API

I'm having a problem that I can't solve since yesterday with the blockCypher APIs when I try to create a new transaction for bitcoin and submit it. https://www.blockcypher.com/dev/bitcoin/?shell#creating-transactions i have to sign locally but their…
JACOPO MOSCONI
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How to generate a Blockcypher contract without error?

I was building my own contract here: https://www.blockcypher.com/dev/ethereum/#create-contract-endpoint ENGINE.PHP
Mystogan
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Validating Purchases from an Exchange

I'm new to crypto but I'm attempting to implement a storefront to process bitcoin sending / receiving. In my first test I transferred some BTC from my coinbase account to my personally hosted wallet. The result was what appears to be a combined…
slacker
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