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51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
#ifndef __GRADIDO_LOGIN_SERVER_CRYPTO_ED25519_H
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#define __GRADIDO_LOGIN_SERVER_CRYPTO_ED25519_H
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#include "IKeyPair.h"
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/*!
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* \author: Dario Rekowski
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*
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* \date: 2020-06-04
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*
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* \brief: Key Pairs class for ed25519 keys, used for default gradido transactions
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*/
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#include "../SingletonManager/MemoryManager.h"
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#include "sodium.h"
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#include "Passphrase.h"
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class KeyPairEd25519 : public IKeyPair
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{
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public:
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//! \param privateKey: take ownership, release after object destruction
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//! \param publicKey: copy
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KeyPairEd25519(MemoryBin* privateKey, const unsigned char* publicKey);
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~KeyPairEd25519();
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//! \param passphrase must contain word indices
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//! \return create KeyPairEd25519, caller muss call delete at return after finish
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static KeyPairEd25519* create(const Passphrase* passphrase);
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//! \return caller take ownership of return value
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MemoryBin* sign(const MemoryBin* message);
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inline const unsigned char* getPublicKey() const { return mSodiumPublic; }
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protected:
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KeyPairEd25519();
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private:
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// 64 Byte
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//! \brief ed25519 libsodium private key
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//!
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//! Why it is a pointer and the public is an array?
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//! TODO: replace MemoryBin by a memory obfuscation class which make it hard to steal the private key from memory
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MemoryBin* mSodiumSecret;
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// 32 Byte
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//! \brief ed25519 libsodium public key
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unsigned char mSodiumPublic[crypto_sign_PUBLICKEYBYTES];
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};
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#endif //__GRADIDO_LOGIN_SERVER_CRYPTO_ED25519_H
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