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add possibility to use ed25519 with only a pubkey

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This commit is contained in:
Dario 2020-06-05 16:49:14 +02:00
parent ae74352fc6
commit 0325a90dab
2 changed files with 23 additions and 2 deletions
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9
src/cpp/Crypto/KeyPairEd25519.cpp
View File

@ -6,12 +6,20 @@
#include "../lib/BinHexConverter.h"
#include "Passphrase.h"
KeyPairEd25519::KeyPairEd25519(MemoryBin* privateKey, const unsigned char* publicKey)
: mSodiumSecret(privateKey)
{
memcpy(mSodiumPublic, publicKey, crypto_sign_PUBLICKEYBYTES);
}
KeyPairEd25519::KeyPairEd25519(const unsigned char* publicKey)
: mSodiumSecret(nullptr)
{
memcpy(mSodiumPublic, publicKey, crypto_sign_PUBLICKEYBYTES);
}
KeyPairEd25519::KeyPairEd25519()
: mSodiumSecret(nullptr)
{
@ -96,6 +104,7 @@ MemoryBin* KeyPairEd25519::sign(const MemoryBin* message)
{
if (!message || !message->size()) return nullptr;
if (!mSodiumSecret) return nullptr;
auto messageSize = message->size();
auto mm = MemoryManager::getInstance();
auto em = ErrorManager::getInstance();

16
src/cpp/Crypto/KeyPairEd25519.h
View File

@ -11,9 +11,9 @@
* \brief: Key Pairs class for ed25519 keys, used for default gradido transactions
*/
#include "../SingletonManager/MemoryManager.h"
#include "sodium.h"
#include "Passphrase.h"
class Passphrase;
class KeyPairEd25519 : public IKeyPair
{
@ -21,6 +21,7 @@ public:
//! \param privateKey: take ownership, release after object destruction
//! \param publicKey: copy
KeyPairEd25519(MemoryBin* privateKey, const unsigned char* publicKey);
KeyPairEd25519(const unsigned char* publicKey);
~KeyPairEd25519();
@ -33,8 +34,19 @@ public:
inline const unsigned char* getPublicKey() const { return mSodiumPublic; }
inline bool isTheSame(const KeyPairEd25519& b) const {
return 0 == sodium_memcmp(mSodiumPublic, b.mSodiumPublic, crypto_sign_PUBLICKEYBYTES);
}
inline bool operator == (const KeyPairEd25519& b) const { return isTheSame(b); }
inline bool operator != (const KeyPairEd25519& b) const { return !isTheSame(b); }
inline bool hasPrivateKey() const { return mSodiumSecret != nullptr; }
protected:
KeyPairEd25519();
private:
// 64 Byte
//! \brief ed25519 libsodium private key