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use EVP functions to extract RSA keys if openssl 3

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orignal
2025-06-12 09:44:55 -04:00
parent 660dbd27d1
commit d2296f81ad
1 changed files with 27 additions and 8 deletions
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35
libi2pd/Reseed.cpp
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2024, The PurpleI2P Project
* Copyright (c) 2013-2025, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@@ -14,6 +14,9 @@
#include <boost/algorithm/string.hpp>
#include <openssl/ssl.h>
#include <openssl/err.h>
#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0
#include <openssl/core_names.h>
#endif
#include <zlib.h>
#include "Crypto.h"
@@ -480,15 +483,31 @@ namespace data
if (terminator) terminator[0] = 0;
}
// extract RSA key (we need n only, e = 65537)
const RSA * key = EVP_PKEY_get0_RSA (X509_get_pubkey (cert));
const BIGNUM * n, * e, * d;
EVP_PKEY * pubKey = X509_get_pubkey (cert);
const BIGNUM * n = nullptr;
#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0
BIGNUM * n1 = BN_new ();
if (EVP_PKEY_get_bn_param (pubKey, OSSL_PKEY_PARAM_RSA_N, &n1) > 0)
n = n1;
#else
const RSA * key = EVP_PKEY_get0_RSA (pubKey);
const BIGNUM * e, * d;
RSA_get0_key(key, &n, &e, &d);
PublicKey value;
i2p::crypto::bn2buf (n, value, 512);
if (cn)
m_SigningKeys[cn] = value;
#endif
if (n)
{
PublicKey value;
i2p::crypto::bn2buf (n, value, 512);
if (cn)
m_SigningKeys[cn] = value;
else
LogPrint (eLogError, "Reseed: Can't find CN field in ", filename);
}
else
LogPrint (eLogError, "Reseed: Can't find CN field in ", filename);
LogPrint (eLogError, "Reseed: Can't extract RSA key from ", filename);
#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0
BN_free (n1);
#endif
}
SSL_free (ssl);
}