virgil::crypto::foundation::VirgilHKDF Class Reference

Implements HMAC-based Extract-and-Expand Key Derivation Function (RFC 5869) More...

#include <VirgilHKDF.h>

Public Member Functions
	VirgilHKDF (VirgilHash::Algorithm hashAlgorithm)
	Define parameters for HKDF algorithm. More...
virgil::crypto::VirgilByteArray	derive (const virgil::crypto::VirgilByteArray &in, const virgil::crypto::VirgilByteArray &salt, const virgil::crypto::VirgilByteArray &info, size_t outSize) const
	Derive key from the given key material and additional options. More...

Detailed Description

Implements HMAC-based Extract-and-Expand Key Derivation Function (RFC 5869)

See also

https://tools.ietf.org/html/rfc5869

Constructor & Destructor Documentation

virgil::crypto::foundation::VirgilHKDF::VirgilHKDF

(

VirgilHash::Algorithm

hashAlgorithm

)

Define parameters for HKDF algorithm.

Parameters

hashAlgorithm

- underlying hash algorithm.

Member Function Documentation

virgil::crypto::VirgilByteArray virgil::crypto::foundation::VirgilHKDF::derive	(	const virgil::crypto::VirgilByteArray &	in,
		const virgil::crypto::VirgilByteArray &	salt,
		const virgil::crypto::VirgilByteArray &	info,
		size_t	outSize
	)		const

Derive key from the given key material and additional options.

Parameters

in	- input sequence (key material).
salt	- optional salt value (a non-secret random value).
info	- optional context and application specific information.
outSize	- size of the output sequence.

Returns

Output sequence.

Note

This function make sense only for HKDF algorithm.

---

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

• include/virgil/crypto/foundation/VirgilHKDF.h