public EvpHashProvider(IntPtr algorithmEvp)
{
_algorithmEvp = algorithmEvp;
Debug.Assert(algorithmEvp != IntPtr.Zero);
_hashSize = Interop.Crypto.EvpMdSize(_algorithmEvp);
if (_hashSize <= 0 || _hashSize > Interop.Crypto.EVP_MAX_MD_SIZE)
{
throw new CryptographicException();
}
_ctx = Interop.Crypto.EvpMdCtxCreate(_algorithmEvp);
Interop.libcrypto.CheckValidOpenSslHandle(_ctx);
}
public EvpHashProvider(IntPtr algorithmEvp)
{
_algorithmEvp = algorithmEvp;
Debug.Assert(algorithmEvp != IntPtr.Zero);
_hashSize = Interop.libcrypto.EVP_MD_size(algorithmEvp);
if (_hashSize <= 0 || _hashSize > Interop.libcrypto.EVP_MAX_MD_SIZE)
{
throw new CryptographicException();
}
_ctx = Interop.libcrypto.EVP_MD_CTX_create();
Interop.libcrypto.CheckValidOpenSslHandle(_ctx);
Check(Interop.libcrypto.EVP_DigestInit_ex(_ctx, algorithmEvp, IntPtr.Zero));
}
internal extern static unsafe int EvpDigestFinalEx(SafeEvpMdCtxHandle ctx, byte* md, ref uint s);
internal extern static unsafe int EvpDigestUpdate(SafeEvpMdCtxHandle ctx, byte* d, int cnt);
internal extern static int EvpDigestReset(SafeEvpMdCtxHandle ctx, IntPtr type);
internal extern static unsafe int EVP_DigestUpdate(SafeEvpMdCtxHandle ctx, byte* d, size_t cnt);
internal extern static int EVP_DigestInit_ex(SafeEvpMdCtxHandle ctx, IntPtr type, IntPtr impl);