[参考译文] DK-TM4C129X：如何使用 TM4C129x 打印每轮 CBC 单 DES 加密/解密？

Renan、您好！

我并不完全确定"DES 函数的每一轮"是什么意思、但最终结果将在  DESCipherText 数组内。

TivaWare 中的函数说明概括了第三个输入是将被处理数据放置在其中的字阵列的指针。

//*****************************************************************************
//
//! Processes blocks of data through the DES module.
//!
//! \param ui32Base is the base address of the DES module.
//! \param pui32Src is a pointer to an array of words that contains the
//! source data for processing.
//! \param pui32Dest is a pointer to an array of words consisting of the
//! processed data.
//! \param ui32Length is the length of the cryptographic data in bytes.
//! It must be a multiple of eight.
//!
//! This function takes the data contained in the pui32Src array and processes
//! it using the DES engine.  The resulting data is stored in the
//! pui32Dest array.  The function blocks until all of the data has been
//! processed.  If processing is successful, the function returns true.
//!
//! \note This functions assumes that the DES module has been configured,
//! and initialization values and keys have been written.
//!
//! \return true or false.
//
//*****************************************************************************
bool
DESDataProcess(uint32_t ui32Base, uint32_t *pui32Src, uint32_t *pui32Dest,
               uint32_t ui32Length)

此致、

Ralph Jacobi

Renan、您好！

使用硬件加速 DES 外设无法实现这一目的。 他们需要实施 DES 加密的软件版本以检查16轮之间的数据。

此致、

Ralph Jacobi