Aws::Crt::Crypto::ByoHMAC Class Reference

#include <HMAC.h>

Public Member Functions
virtual	~ByoHMAC ()=default

Protected Member Functions
	ByoHMAC (size_t digestSize, const ByteCursor &secret, Allocator *allocator=ApiAllocator())
virtual bool	UpdateInternal (const ByteCursor &toHash) noexcept=0
virtual bool	DigestInternal (ByteBuf &output, size_t truncateTo=0) noexcept=0

Detailed Description

BYO_CRYPTO: Base class for custom HMAC implementations.

If using BYO_CRYPTO, you must define concrete implementations for the required HMAC algorithms and set their creation callbacks via functions like ApiHandle.SetBYOCryptoNewSHA256HMACCallback().

Constructor & Destructor Documentation

~ByoHMAC()

virtual Aws::Crt::Crypto::ByoHMAC::~ByoHMAC ( )

virtualdefault

ByoHMAC()

Aws::Crt::Crypto::ByoHMAC::ByoHMAC ( size_t digestSize, const ByteCursor & secret, Allocator * allocator = ApiAllocator() )

protected

Member Function Documentation

DigestInternal()

virtual bool Aws::Crt::Crypto::ByoHMAC::DigestInternal ( ByteBuf & output, size_t truncateTo = 0 )

protectedpure virtualnoexcept

Complete the HMAC computation and write the final digest to output. This cannot be called more than once. If truncate_to is something other than 0, the output must be truncated to that number of bytes. Raise an AWS error and return false to indicate failure.

UpdateInternal()

virtual bool Aws::Crt::Crypto::ByoHMAC::UpdateInternal ( const ByteCursor & toHash )

protectedpure virtualnoexcept

Updates the running HMAC with to_hash. This can be called multiple times. Raise an AWS error and return false to indicate failure.

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The documentation for this class was generated from the following files:

• crt/aws-crt-cpp/include/aws/crt/crypto/HMAC.h
• crt/aws-crt-cpp/source/crypto/HMAC.cpp