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Add MACRO to set alignment of sha256 context #28426

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merged 1 commit into from
Aug 3, 2023
Merged

Add MACRO to set alignment of sha256 context #28426

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2 changes: 1 addition & 1 deletion src/crypto/CHIPCryptoPAL.h
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Original file line number Diff line number Diff line change
Expand Up @@ -803,7 +803,7 @@ CHIP_ERROR Hash_SHA1(const uint8_t * data, size_t data_length, uint8_t * out_buf
* All implementations must check for std::is_trivially_copyable.
**/

struct alignas(size_t) HashSHA256OpaqueContext
struct alignas(CHIP_CONFIG_SHA256_CONTEXT_ALIGN) HashSHA256OpaqueContext
{
uint8_t mOpaque[kMAX_Hash_SHA256_Context_Size];
};
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9 changes: 9 additions & 0 deletions src/lib/core/CHIPConfig.h
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Expand Up @@ -185,6 +185,15 @@
#define CHIP_CONFIG_SHA256_CONTEXT_SIZE ((sizeof(unsigned int) * (8 + 2 + 16 + 2)) + sizeof(uint64_t))
#endif // CHIP_CONFIG_SHA256_CONTEXT_SIZE

/**
* @def CHIP_CONFIG_SHA256_CONTEXT_ALIGN
*
* @brief The alignment of SHA256 context buffer.
*/
#ifndef CHIP_CONFIG_SHA256_CONTEXT_ALIGN
#define CHIP_CONFIG_SHA256_CONTEXT_ALIGN size_t
#endif // CHIP_CONFIG_SHA256_CONTEXT_ALIGN

/**
* @def CHIP_CONFIG_MAX_UNSOLICITED_MESSAGE_HANDLERS
*
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