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Reogranised usr files and updated readme.

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This commit is contained in:
Ravin Perera
2019-10-03 18:19:28 +05:30
parent 1e855bf1b2
commit e3c1f85034
8 changed files with 87 additions and 54 deletions
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50
src/crypto.cpp
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@@ -3,6 +3,7 @@
#include <sodium.h>
#include "conf.h"
#include "crypto.h"
#include "shared.h"
using namespace std;
using namespace rapidjson;
@@ -11,8 +12,6 @@ namespace crypto
{
void generate_crypto_keys();
string base64_encode(unsigned char *bin, size_t bin_len);
int base64_decode(string base64_str, unsigned char *decoded, size_t decoded_len);
void binpair_to_b64();
int b64pair_to_bin();
@@ -25,7 +24,7 @@ string sign_b64(string msg)
{
unsigned char sig[crypto_sign_BYTES];
crypto_sign_detached(sig, NULL, (unsigned char *)msg.data(), msg.size() + 1, conf::cfg.seckey);
return base64_encode(sig, crypto_sign_BYTES);
return shared::base64_encode(sig, crypto_sign_BYTES);
}
bool verify(const unsigned char *msg, unsigned long long msg_len, const unsigned char *sig, const unsigned char *pubkey)
@@ -37,10 +36,10 @@ bool verify(const unsigned char *msg, unsigned long long msg_len, const unsigned
bool verify_b64(string msg, string sigb64, string pubkeyb64)
{
unsigned char decoded_pubkey[crypto_sign_PUBLICKEYBYTES];
base64_decode(pubkeyb64, decoded_pubkey, crypto_sign_PUBLICKEYBYTES);
shared::base64_decode(pubkeyb64, decoded_pubkey, crypto_sign_PUBLICKEYBYTES);
unsigned char decoded_sig[crypto_sign_BYTES];
base64_decode(sigb64, decoded_sig, crypto_sign_BYTES);
shared::base64_decode(sigb64, decoded_sig, crypto_sign_BYTES);
int result = crypto_sign_verify_detached(decoded_sig, (unsigned char *)msg.data(), msg.size() + 1, decoded_pubkey);
return result == 0;
@@ -102,43 +101,10 @@ void generate_crypto_keys()
crypto_sign_keypair(conf::cfg.pubkey, conf::cfg.seckey);
}
string base64_encode(unsigned char *bin, size_t bin_len)
{
const size_t base64_max_len = sodium_base64_encoded_len(bin_len, sodium_base64_VARIANT_ORIGINAL);
char base64_str[base64_max_len];
char *encoded_str_char = sodium_bin2base64(
base64_str, base64_max_len,
bin, bin_len,
sodium_base64_VARIANT_ORIGINAL);
if (encoded_str_char == NULL)
throw "Base64 Error: Failed to encode string";
string s(base64_str);
return s;
}
int base64_decode(string base64_str, unsigned char *decoded, size_t decoded_len)
{
const char *b64_end;
size_t bin_len;
if (sodium_base642bin(
decoded, decoded_len,
base64_str.data(), base64_str.size() + 1,
"", &bin_len, &b64_end,
sodium_base64_VARIANT_ORIGINAL))
{
return 0;
}
return 1;
}
void binpair_to_b64()
{
conf::cfg.pubkeyb64 = base64_encode(conf::cfg.pubkey, crypto_sign_PUBLICKEYBYTES);
conf::cfg.seckeyb64 = base64_encode(conf::cfg.seckey, crypto_sign_SECRETKEYBYTES);
conf::cfg.pubkeyb64 = shared::base64_encode(conf::cfg.pubkey, crypto_sign_PUBLICKEYBYTES);
conf::cfg.seckeyb64 = shared::base64_encode(conf::cfg.seckey, crypto_sign_SECRETKEYBYTES);
}
int b64pair_to_bin()
@@ -146,13 +112,13 @@ int b64pair_to_bin()
unsigned char *decoded_pubkey = (unsigned char *)malloc(crypto_sign_PUBLICKEYBYTES);
unsigned char *decoded_seckey = (unsigned char *)malloc(crypto_sign_SECRETKEYBYTES);
if (!base64_decode(conf::cfg.pubkeyb64, decoded_pubkey, crypto_sign_PUBLICKEYBYTES))
if (!shared::base64_decode(conf::cfg.pubkeyb64, decoded_pubkey, crypto_sign_PUBLICKEYBYTES))
{
cerr << "Error decoding public key.\n";
return 0;
}
if (!base64_decode(conf::cfg.seckeyb64, decoded_seckey, crypto_sign_SECRETKEYBYTES))
if (!shared::base64_decode(conf::cfg.seckeyb64, decoded_seckey, crypto_sign_SECRETKEYBYTES))
{
cerr << "Error decoding secret key.\n";
return 0;