dipki::Xof Class Reference

Extendable-output function (XOF). More...

Public Types
enum class	XofAlg
	Extendable-output function (XOF) algorithm. More...

Static Public Member Functions
static bvec_t	Bytes (int numBytes, const bvec_t &message, XofAlg xofalg)
	Generate bytes using an extendable-output function (XOF). More...

Detailed Description

Extendable-output function (XOF).

Member Enumeration Documentation

XofAlg

enum dipki::Xof::XofAlg

strong

Extendable-output function (XOF) algorithm.

Enumerator
Shake128	SHAKE128 as per FIPS PUB 202.
Shake256	SHAKE256 as per FIPS PUB 202.
Mgf1_Sha1	MGF1-SHA-1 as per PKCS#1/RFC2437.
Mgf1_Sha256	MGF1-SHA-256 as per PKCS#1/RFC2437.
Mgf1_Sha512	MGF1-SHA-512 as per PKCS#1/RFC2437.

Member Function Documentation

Bytes()

static bvec_t dipki::Xof::Bytes ( int  numBytes, const bvec_t &  message, XofAlg  xofalg  )

static

Generate bytes using an extendable-output function (XOF).

Parameters

numBytes	Required number of output bytes.
message	Input message data.
xofalg	XOF algorithm.

Returns

Output data in byte array.

cout << dipki::Cnv::ToHex(dipki::Xof::Bytes(34, 
    dipki::Cnv::FromHex("3b5c056af3ebba70d4c805380420585562b32410a778f558ff951252407647e3"), 
    dipki::Xof::XofAlg::Mgf1_Sha256)) << endl;
// 5B7EB772AECF04C74AF07D9D9C1C1F8D3A90DCDA00D5BAB1DC28DAECDC86EB87611E