Performs the HKDF Expand step. The method should be used after a previous `Extract` call, otherwise its behavior is undefined. In the Expand stage an output key of a given length is derived from the pseudo-random key of Extract stage.

References

Code

Location

Scope

Referrer

class HkdfSha256

hkdf_sha256.hpp:58

HkdfSha256::HkdfSha256(void)

hkdf_sha256.cpp:45

ot::Crypto::HkdfSha256::HkdfSha256()

HkdfSha256::~HkdfSha256(void) { SuccessOrAssert(otPlatCryptoHkdfDeinit(&mContext)); }

hkdf_sha256.cpp:52

ot::Crypto::HkdfSha256::~HkdfSha256()

void HkdfSha256::Extract(const uint8_t *aSalt, uint16_t aSaltLength, const Key &aInputKey)

hkdf_sha256.cpp:54

ot::Crypto::HkdfSha256::Extract()

void HkdfSha256::Expand(const uint8_t *aInfo, uint16_t aInfoLength, uint8_t *aOutputKey, uint16_t aOutputKeyLength)

hkdf_sha256.cpp:59

ot::Crypto::HkdfSha256::Expand()

Crypto::HkdfSha256 hkdf;

key_manager.cpp:311

ot::KeyManager::ComputeTrelKey() const

ot::Crypto::HkdfSha256 class

Syntax

Fields

Methods

Extract()

Expand()

Examples

References

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