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complete implementation of RedDSA

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orignal 2019-03-24 18:42:52 -04:00
parent c797ac4268
commit ff44bcc489
4 changed files with 100 additions and 7 deletions
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36
libi2pd/Signature.h
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@ -487,6 +487,42 @@ namespace crypto
typedef GOSTR3410Signer<GOSTR3411_256_Hash> GOSTR3410_256_Signer;
typedef GOSTR3410Verifier<GOSTR3411_512_Hash> GOSTR3410_512_Verifier;
typedef GOSTR3410Signer<GOSTR3411_512_Hash> GOSTR3410_512_Signer;
// RedDSA
typedef EDDSA25519Verifier RedDSA25519Verifier;
class RedDSA25519Signer: public Signer
{
public:
RedDSA25519Signer (const uint8_t * signingPrivateKey)
{
memcpy (m_PrivateKey, signingPrivateKey, EDDSA25519_PRIVATE_KEY_LENGTH);
BN_CTX * ctx = BN_CTX_new ();
auto publicKey = GetEd25519 ()->GeneratePublicKey (m_PrivateKey, ctx);
GetEd25519 ()->EncodePublicKey (publicKey, m_PublicKeyEncoded, ctx);
BN_CTX_free (ctx);
}
~RedDSA25519Signer () {};
void Sign (const uint8_t * buf, int len, uint8_t * signature) const
{
GetEd25519 ()->SignRedDSA (m_PrivateKey, m_PublicKeyEncoded, buf, len, signature);
}
const uint8_t * GetPublicKey () const { return m_PublicKeyEncoded; }; // for keys creation
private:
uint8_t m_PrivateKey[EDDSA25519_PRIVATE_KEY_LENGTH];
uint8_t m_PublicKeyEncoded[EDDSA25519_PUBLIC_KEY_LENGTH];
};
inline void CreateRedDSA25519RandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey)
{
GetEd25519 ()->CreateRedDSAPrivateKey (signingPrivateKey);
RedDSA25519Signer signer (signingPrivateKey);
memcpy (signingPublicKey, signer.GetPublicKey (), EDDSA25519_PUBLIC_KEY_LENGTH);
}
}
}