ri_ctx Struct Reference

Context for the Restricted Identification protocol. More...

#include <eac.h>

Data Fields
int	protocol
	Identifier of the hash function to use. More...
int	id
	identifier of this RI context
const EVP_MD *	md
	Digest to use for derivation of I^{sector}_{ID}.
BUF_MEM *(*	generate_key )(EVP_PKEY *key, BN_CTX *bn_ctx)
	Generates a key pair for key agreement. More...
BUF_MEM *(*	compute_key )(EVP_PKEY *key, const BUF_MEM *in, BN_CTX *bn_ctx)
	Completes a key agreement by computing the shared secret. More...
EVP_PKEY *	static_key
	PICC's static domain parameters.

Detailed Description

Context for the Restricted Identification protocol.

Definition at line 199 of file eac.h.

Field Documentation

compute_key

BUF_MEM*(* ri_ctx::compute_key) (EVP_PKEY *key, const BUF_MEM *in, BN_CTX *bn_ctx)

Completes a key agreement by computing the shared secret.

Parameters

[in]	key	Object for key computation, usually &KA_CTX.key
[in]	in	Public key from the other party
[in]	bn_ctx	(optional)

Returns

Shared secret or NULL in case of an error

Definition at line 238 of file eac.h.

generate_key

BUF_MEM*(* ri_ctx::generate_key) (EVP_PKEY *key, BN_CTX *bn_ctx)

Generates a key pair for key agreement.

Parameters

[in]	key	Object for key generation, usually &KA_CTX.key
[in]	bn_ctx	(optional)

Returns

Public key or NULL in case of an error

Definition at line 228 of file eac.h.

protocol

int ri_ctx::protocol

Identifier of the hash function to use.

see tr 03110 p. 60

• NID_id_RI_DH_SHA_1
• NID_id_RI_DH_SHA_224
• NID_id_RI_DH_SHA_256
• NID_id_RI_DH_SHA_384
• NID_id_RI_DH_SHA_512
• NID_id_RI_ECDH_SHA_1
• NID_id_RI_ECDH_SHA_224
• NID_id_RI_ECDH_SHA_256
• NID_id_RI_ECDH_SHA_384
• NID_id_RI_ECDH_SHA_512

Definition at line 215 of file eac.h.

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

• eac/eac.h