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ot::Crypto::Key class
Represents a crypto key. The `Key` can represent a literal key (i.e., a pointer to a byte array containing the key along with a key length) or a `KeyRef` (if `OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE` is enabled).
Syntax
class Key : public otCryptoKey, public Clearable<Key>
{
public:
void Set(const uint8_t *aKeyBytes, uint16_t aKeyLength)
{
mKey = aKeyBytes;
mKeyLength = aKeyLength;
}
const uint8_t *GetBytes(void) const { return mKey; }
uint16_t GetLength(void) const { return mKeyLength; }
#if OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE
bool IsKeyRef(void) const { return (mKey == nullptr); }
Storage::KeyRef GetKeyRef(void) const { return mKeyRef; }
void SetAsKeyRef(Storage::KeyRef aKeyRef)
{
mKey = nullptr;
mKeyLength = 0;
mKeyRef = aKeyRef;
}
Error ExtractKey(uint8_t *aKeyBuffer, uint16_t &aKeyLength) const;
#endif
};
Related Functions
Found 6 other functions taking a Key
argument:
Function
Description
Sets the key.
Sets the key and starts the HMAC computation.
Initializes the `LiteralKey` from a given `Key`. If the @p aKey is itself represents a literal key the same key buffer pointers are used. If the @p aKey is a `KeyRef` then the literal key is extracted. In this case, the extracted key MUST be smaller than `kMaxSize`.
Converts `KeyMaterial` to a `Crypto::Key`.
Sets the key.
Performs the HKDF Extract step. In the Extract step getting an input key extracts from it a pseudo-random key.
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