Provides functionality related to Edwards-curve Digital Signature Algorithm (EdDSA). More...

Macros
#define	NRF_CRYPTO_EDDSA_ED25519_SIGNATURE_SIZE (2 * 256 / 8)
	Size of the EdDSA Ed25519 signature. More...

Typedefs
typedef nrf_crypto_backend_ed25519_sign_context_t	nrf_crypto_eddsa_sign_context_t
	Context used to store temporary data during the verification with EdDSA Ed25519.

typedef nrf_crypto_backend_ed25519_verify_context_t	nrf_crypto_eddsa_verify_context_t

Functions
ret_code_t	nrf_crypto_eddsa_sign ( nrf_crypto_eddsa_sign_context_t p_context, nrf_crypto_ecc_private_key_t const p_private_key, uint8_t const p_message, size_t message_size, uint8_t p_signature, size_t *p_signature_size)
	Sign a message using Edwards-curve Digital Signature Algorithm (EdDSA). More...

ret_code_t	nrf_crypto_eddsa_verify (nrf_crypto_eddsa_verify_context_t p_context, nrf_crypto_ecc_public_key_t const p_public_key, uint8_t const p_message, size_t message_size, uint8_t const p_signature, size_t signature_size)
	Verify a message using Edwards-curve Digital Signature Algorithm (EdDSA). More...

Detailed Description

Provides functionality related to Edwards-curve Digital Signature Algorithm (EdDSA).

Macro Definition Documentation

#define NRF_CRYPTO_EDDSA_ED25519_SIGNATURE_SIZE (2 * 256 / 8)

Size of the EdDSA Ed25519 signature.

<Context used to store temporary data during the signing with EdDSA Ed25519.

ret_code_t nrf_crypto_eddsa_sign	(	nrf_crypto_eddsa_sign_context_t *	p_context ,
		nrf_crypto_ecc_private_key_t const *	p_private_key ,
		uint8_t const *	p_message ,
		size_t	message_size ,
		uint8_t *	p_signature ,
		size_t *	p_signature_size
	)

Sign a message using Edwards-curve Digital Signature Algorithm (EdDSA).

Parameters

[in]	p_context	Pointer to the temporary structure that holds context information. If it is NULL, the required data is allocated with NRF_CRYPTO_ALLOC and freed at the end of the function.
[in]	p_private_key	Pointer to the structure that holds a private key.
[in]	p_message	Pointer to the message to sign.
[in]	message_size	Number of bytes in p_message.
[out]	p_signature	Pointer to the array where EdDSA signature is to be put. Minimum bytes required: NRF_CRYPTO_EDDSA_ED25519_SIGNATURE_SIZE .
[in,out]	p_signature_size	Pointer to the maximum number of bytes that `p_signature` buffer can hold on input, and to the actual number of bytes used by the data on output ( NRF_CRYPTO_EDDSA_ED25519_SIGNATURE_SIZE ).

ret_code_t nrf_crypto_eddsa_verify	(	nrf_crypto_eddsa_verify_context_t *	p_context ,
		nrf_crypto_ecc_public_key_t const *	p_public_key ,
		uint8_t const *	p_message ,
		size_t	message_size ,
		uint8_t const *	p_signature ,
		size_t	signature_size
	)

Verify a message using Edwards-curve Digital Signature Algorithm (EdDSA).

Parameters

[in]	p_context	Pointer to the temporary structure that holds context information. If it is NULL, necessary data is allocated with NRF_CRYPTO_ALLOC and freed at the end of the function.
[in]	p_public_key	Pointer to the structure that holds a public key.
[in]	p_message	Pointer to the message to verify.
[in]	message_size	Number of bytes in p_message.
[in]	p_signature	Pointer to the array that contains EdDSA signature.
[in]	signature_size	Number of bytes in p_signature.