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calculate crypto key length from key type

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orignal 2025-03-18 19:23:13 -04:00
parent 609cd401bb
commit bd2b96627c
10 changed files with 79 additions and 29 deletions
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28
libi2pd/CryptoKey.h
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2021, The PurpleI2P Project
* Copyright (c) 2013-2025, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -11,6 +11,7 @@
#include <inttypes.h>
#include "Crypto.h"
#include "Identity.h"
namespace i2p
{
@ -157,7 +158,30 @@ namespace crypto
X25519Keys m_StaticKeys;
};
void CreateECIESX25519AEADRatchetRandomKeys (uint8_t * priv, uint8_t * pub);
bool CreateECIESX25519AEADRatchetRandomKeys (uint8_t * priv, uint8_t * pub,
i2p::data::CryptoKeyType type = i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD);
constexpr size_t GetCryptoPrivateKeyLen (i2p::data::CryptoKeyType type)
{
switch (type)
{
case i2p::data::CRYPTO_KEY_TYPE_ELGAMAL: return 256;
case i2p::data::CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: return 32;
case i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD: return 32;
};
return 0;
}
constexpr size_t GetCryptoPublicKeyLen (i2p::data::CryptoKeyType type)
{
switch (type)
{
case i2p::data::CRYPTO_KEY_TYPE_ELGAMAL: return 256;
case i2p::data::CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: return 32;
case i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD: return 32;
};
return 0;
}
}
}