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use EVP interface for DSA sign/verify with OpenSSL 3

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orignal 2025-03-23 18:53:32 -04:00
parent a193186935
commit 75d5c6036e
4 changed files with 227 additions and 68 deletions
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39
libi2pd/Crypto.cpp
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@ -19,6 +19,10 @@
#if OPENSSL_HKDF
#include <openssl/kdf.h>
#endif
#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0
#include <openssl/param_build.h>
#include <openssl/core_names.h>
#endif
#include "CPU.h"
#include "Crypto.h"
#include "Ed25519.h"
@ -146,6 +150,37 @@ namespace crypto
#define dsap GetCryptoConstants ().dsap
#define dsaq GetCryptoConstants ().dsaq
#define dsag GetCryptoConstants ().dsag
#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0
EVP_PKEY * CreateDSA (BIGNUM * pubKey, BIGNUM * privKey)
{
EVP_PKEY * pkey = nullptr;
int selection = EVP_PKEY_KEY_PARAMETERS;
auto bld = OSSL_PARAM_BLD_new();
OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_P, dsap);
OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_Q, dsaq);
OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_G, dsag);
if (pubKey)
{
OSSL_PARAM_BLD_push_BN (bld, OSSL_PKEY_PARAM_PUB_KEY, pubKey);
selection = EVP_PKEY_PUBLIC_KEY;
}
if (privKey)
{
OSSL_PARAM_BLD_push_BN (bld, OSSL_PKEY_PARAM_PRIV_KEY, privKey);
selection = EVP_PKEY_KEYPAIR;
}
auto params = OSSL_PARAM_BLD_to_param(bld);
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_name (NULL, "DSA", NULL);
EVP_PKEY_fromdata_init(ctx);
EVP_PKEY_fromdata(ctx, &pkey, selection, params);
EVP_PKEY_CTX_free(ctx);
OSSL_PARAM_free(params);
OSSL_PARAM_BLD_free(bld);
return pkey;
}
#else
DSA * CreateDSA ()
{
DSA * dsa = DSA_new ();
@ -153,7 +188,8 @@ namespace crypto
DSA_set0_key (dsa, NULL, NULL);
return dsa;
}
#endif
// DH/ElGamal
#if !IS_X86_64
@ -943,7 +979,6 @@ namespace crypto
}
#if OPENSSL_PQ
#include <openssl/core_names.h>
MLKEM512Keys::MLKEM512Keys ():
m_Pkey (nullptr)