Questions tagged [cryptography]
The cryptography tag has no usage guidance.
7
questions with no upvoted or accepted answers
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vote
0answers
245 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 ...
1
vote
1answer
378 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
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0answers
162 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
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
21 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 ...
0
votes
0answers
12 views
How to use md5.sum in eos contract
I search nothing about md5 in eosio source code.
When i use external md5 lib, i encounter the link error like this 'env._Z7md5sum6NSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEE ...
0
votes
0answers
70 views
EOSIOSwiftVault - “Key generation failed.” How to generate keyPairs?
Following the tutorial in https://github.com/EOSIO/eosio-swift-vault for EosioSwiftVault I wrote the following function:
import EosioSwiftVault
func getKeyPair()
let vault = EosioVault(accessGroup: ...
