Re: Crypto++ & x64

[Jeffrey Walton]

Hi Adam,

The DLL is built for FIPS compliance, so RC2 and DES will not be
available. This is by design by Wei.

Jeff


On 2/8/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> During my development on Windows Vista/x64 I have found some errors in
> Crypto++. The first problem is connected with DLL build of Crypto++
> and SetNewAndDeleteFunctionPointers function. Below I have attached
> all changes which are required to proper functionality of Crypto++ on
> Vista/x64:
>
> -- [dll.cpp] --
> --- version 2 in <gustaw-1.3-devel>
> +++ version 4 in <gustaw-1.3-devel>
> @@ -103,9 +103,17 @@
> {
> s_pNew = (PNew)GetProcAddress(hModule, "[EMAIL PROTECTED]@Z"); // operator
> new
> s_pDelete = (PDelete)GetProcAddress(hModule, "[EMAIL PROTECTED]@Z"); //
> operator delete
> + if (NULL == s_pNew || NULL == s_pDelete) {
> + // Windows Vista on x64
> + s_pNew = (PNew)GetProcAddress(hModule, "[EMAIL PROTECTED]@Z"); //
> operator new
> + s_pDelete = (PDelete)GetProcAddress(hModule, "[EMAIL PROTECTED]@Z"); //
> operator delete
> + }
> + if (NULL == s_pNew || NULL == s_pDelete) {
> + OutputDebugString("Crypto++ was not able to obtain new and delete
> function pointers.\n");
> + throw 0;
> + }
> return;
> }
> -
> OutputDebugString("Crypto++ was not able to obtain new and delete
> function pointers.\n");
> throw 0;
> }
> -- cut hiere --
>
> I have also noticed, that a lot of API does not contain CRYPTOPP_DLL
> attribute, e.g.:
>
> -- [rc2.h] --
> --- version 2 in <gustaw-1.3-devel>
> +++ version 3 in <gustaw-1.3-devel>
> @@ -21,7 +21,7 @@
> /// <a href="http://www.weidai.com/scan-mirror/cs.html#RC2";>RC2</a>
> class RC2 : public RC2_Info, public BlockCipherDocumentation
> {
> - class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<RC2_Info>
> + class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public
> BlockCipherImpl<RC2_Info>
> {
> public:
> void UncheckedSetKey(const byte *userKey, unsigned int length, const
> NameValuePairs &params);
> @@ -30,13 +30,13 @@
> FixedSizeSecBlock<word16, 64> K; // expanded key table
> };
> - class CRYPTOPP_NO_VTABLE Enc : public Base
> + class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base
> {
> public:
> void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock,
> byte *outBlock) const;
> };
> - class CRYPTOPP_NO_VTABLE Dec : public Base
> + class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base
> {
> public:
> void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock,
> byte *outBlock) const;
> -- cut hiere --
>
> or:
>
> -- [des.h] --
> --- version 2 in <gustaw-1.3-devel>
> +++ version 3 in <gustaw-1.3-devel>
> @@ -35,7 +35,7 @@
> check or correct the parity bits if you wish. */
> class DES : public DES_Info, public BlockCipherDocumentation
> {
> - class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_Info>,
> public RawDES
> + class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public
> BlockCipherImpl<DES_Info>, public RawDES
> {
> public:
> void UncheckedSetKey(const byte *userKey, unsigned int length, const
> NameValuePairs &params);
> -- cut hiere --
>
> Regards,
> Adam Augustyn

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