Driver::Crypto::ED25519 Class Reference

This class implements the Edwards-curve digital signature defined by Edwards-Curve Digital Signature Algorithm (EdDSA) [RFC8032], using standard parameters. More...

Detailed Description

This class implements the Edwards-curve digital signature defined by Edwards-Curve Digital Signature Algorithm (EdDSA) [RFC8032], using standard parameters.

#include <ED25519.h>

Classes
struct	Keys_T
	Asymmetrically Key Pair. More...

Static Public Member Functions
static DriverCryptoStatus_T	createKeyPair (Keys_T dstKeys, const uint8_t seed[SEED_SIZE])
	This method create a key pair for the signing algorithm.
static DriverCryptoStatus_T	sign (uint8_t dstSignature[SIGNATURE_SIZE], const void *srcMessage, size_t srcMessageLength, const Keys_T keyPair)
	This method is used to digital sign a 'message'.
static DriverCryptoStatus_T	verify (const uint8_t messageSignature[SIGNATURE_SIZE], const void *message, size_t messageLength, const uint8_t publicKey[PUBLIC_KEY_SIZE])
	This method is used to verify that the specified 'messages' has been signed.

Static Public Attributes
static constexpr size_t	PUBLIC_KEY_SIZE = 32
	Public key size in bytes.
static constexpr size_t	PRIVATE_KEY_SIZE = 64
	Public key size in bytes.
static constexpr size_t	SIGNATURE_SIZE = 64
	Signature size in bytes.
static constexpr size_t	SEED_SIZE = 32
	Seed (for when creating a Key par) size in bytes.

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Class Documentation

Driver::Crypto::ED25519::Keys_T

struct Driver::Crypto::ED25519::Keys_T

Asymmetrically Key Pair.

Class Members
uint8_t	privateKey[PRIVATE_KEY_SIZE]	Public Key.
uint8_t	publicKey[PUBLIC_KEY_SIZE]	Private Key.

Member Function Documentation

createKeyPair()

static DriverCryptoStatus_T Driver::Crypto::ED25519::createKeyPair ( Keys_T  dstKeys, const uint8_t  seed[SEED_SIZE]  )

static

This method create a key pair for the signing algorithm.

The method returns DRIVER_CRYPTO_SUCCESS when successful.

sign()

static DriverCryptoStatus_T Driver::Crypto::ED25519::sign ( uint8_t  dstSignature[SIGNATURE_SIZE], const void *  srcMessage, size_t  srcMessageLength, const Keys_T  keyPair  )

static

This method is used to digital sign a 'message'.

The method returns DRIVER_CRYPTO_SUCCESS when successful.

verify()

static DriverCryptoStatus_T Driver::Crypto::ED25519::verify ( const uint8_t  messageSignature[SIGNATURE_SIZE], const void *  message, size_t  messageLength, const uint8_t  publicKey[PUBLIC_KEY_SIZE]  )

static

This method is used to verify that the specified 'messages' has been signed.

The method returns DRIVER_CRYPTO_SUCCESS when message is successfully verified.

Member Data Documentation

PRIVATE_KEY_SIZE

constexpr size_t Driver::Crypto::ED25519::PRIVATE_KEY_SIZE = 64

staticconstexpr

Public key size in bytes.

PUBLIC_KEY_SIZE

constexpr size_t Driver::Crypto::ED25519::PUBLIC_KEY_SIZE = 32

staticconstexpr

Public key size in bytes.

SEED_SIZE

constexpr size_t Driver::Crypto::ED25519::SEED_SIZE = 32

staticconstexpr

Seed (for when creating a Key par) size in bytes.

SIGNATURE_SIZE

constexpr size_t Driver::Crypto::ED25519::SIGNATURE_SIZE = 64

staticconstexpr

Signature size in bytes.

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

• Driver/Crypto/ED25519.h