I am using the python ecdsa library for signing messages for blockchain transactions. In the blockchain specification it says, for secp256r1 that the ...

So I'm trying to send a transaction with python that use the function collectFromTiles in this smart contract: https://polygonscan.com/address/0x068ad ...

I have a small application running on an ESP32 dev board (I use the Arduino IDE together with the shipped mbedtls) that issues and verifies JWT tokens ...

Using the SimpleWebAuthn TypeScript package, I have generated a ECDSA-SHA256 key pair and I used the key pair to sign a challenge. The SimpleWebAuthn ...

I created a ECDsa private with this command: and want to import it like this: when I run the last line, I get this error: I am creating the E ...

In Hyperledger Fabric, the client signs a transaction using the private key. I am trying to find this signature from the block and verify the sign usi ...

I cannot get the Sendgrid public key verification to work in my application. I already have all the prerequisites configured. (API key is added, Signe ...

In the bitcoin wiki they describe the algorithm used to verify a signature using ECDSA with Secp256k1. This algorithm has 3 inputs: signature, message ...

Let's Encrypt Certbot default key type is changed to ECDSA with the latest version 2.0.0. How to specify the key type to generate RSA or ECDSA? ...

GitHub - new SSH key - add SSH key -> Key field shows "Begins with ... 'ecdsa-sha2-nistp256'..." but NOT "Begins with 'sk-ecdsa-sha2-nistp256'...". ...

I was implementing code for signing a xml document using specific private key in .net 6 using algorithm ECDSA with curve secp256k1 my .net6 code : ...

I coded the ECDSA functions in my C++ program. When I test every signature works fine in my C++ ECDSA verify function, but not every one pass on the G ...

This question was migrated from Information Security Stack Exchange because it ...

I am trying to decode a STIR/SHAKEN HS256 JSON Web Token. I tried with the Jose .NET library: It gives an error Jose.InvalidAlgorithmException ...

I am trying to verify an ECDSA signature which is 71 bytes with Python using ecdsa package. Here is my code: When I try to run this code, I get an ...

I'm looking to a build a structure that stores/serializes/deserializes an ECDSA signature as part of a larger structure. This structure can use NIST P ...

I want to achieve the following with the Nodejs crypto module: I want to sign a message with my private key on a defined EC and have the signature ...

This question was migrated from Information Security Stack Exchange because it ...

I am trying to understand the use of ECDSA key based certificate that is issued (ie. signed) by a CA using RSA key. For example when you connect to ww ...

My actual need is to generate a EC key pair (public & private key) and use it to mock the device authorization. Once the generated public key is u ...