Questions tagged [cryptography]
The cryptography tag has no usage guidance.
6
questions with no upvoted or accepted answers
2
votes
0answers
255 views
Using recover_key with eosjs
I want to validate user signatures in my smart contract. As I understood, I am supposed to do that with recover_key function from crypto.h
I am using JavaScript with eosjs and eosjs-ecc for ...
2
votes
1answer
416 views
How to use recover function in crypto.hpp to verify signature and public key
I want to sign some data in client using eosjs-ecc.sign() and result is a string like "SIG_K1_KcTmv..." I want to use the
recover_key(const checksum256* digest, const char* sig, size_t siglen, char*...
1
vote
0answers
171 views
how to convert eosio::public_key to c public_key?
In the vote.cpp, they use this type of public key:
namespace eosio {
struct public_key {
unsigned_int type;
std::array<char,33> data;
friend bool operator == ( const ...
0
votes
0answers
9 views
using secp256k1 C lib generate various random key-pair?
I am just writing a small test program by using secp256k1-zkp C lib, targeting to generate various random ecdsa key pairs, by using secp256k1-zkp API, simply follow up some example in tests.c.
However,...
0
votes
0answers
14 views
Does EOS's P2P transmission mechanism support encrypted transmission of information?
I'm not sure if this is already supported. The use case is like this:
Using secret-key cryptography, Alice and Bob would have to devise a
single cryptographic key that they will both know and use ...
0
votes
0answers
25 views
Is it possible to run RSA verification within contract
I am trying to implement RSA signature verification in a contract but am a bit stuck.
I implemented RSA signature verification using BigInt, however, because of this, it is not possible to transfer ...
