C++ (Cpp) KA_CTX_compute_key 예제들

예제 #1

파일: pace.c 프로젝트: d0/dotfiles

int
PACE_STEP3B_compute_shared_secret(const EAC_CTX * ctx, const BUF_MEM * in)
{
    BUF_MEM *my_pub = NULL;
    int r = 0;

    check((ctx  && ctx->pace_ctx  && ctx->pace_ctx->ka_ctx
            && ctx->pace_ctx->ka_ctx->compute_key && in), "Invalid arguments");

    /* Check if the new public key is different from the other party's public
     * key.  Note that this check is only required since TR-03110 v2.02, but it
     * makes sense to always check this... */
    if (!ctx->pace_ctx->my_eph_pubkey
               || (in->length == ctx->pace_ctx->my_eph_pubkey->length
                && memcmp(in->data, ctx->pace_ctx->my_eph_pubkey, in->length) == 0)) {
        log_err("Bad DH or ECKEY object");
        goto err;
    }


    check(KA_CTX_compute_key(ctx->pace_ctx->ka_ctx, in, ctx->bn_ctx),
            "Failed to compute shared secret");

    r = 1;

err:
    if (my_pub)
        BUF_MEM_free(my_pub);

    return r;
}

예제 #2

파일: eac_ca.c 프로젝트: RushOnline/openpace

int
CA_STEP4_compute_shared_secret(const EAC_CTX *ctx, const BUF_MEM *pubkey)
{
    if (!ctx || !ctx->ca_ctx
            || !KA_CTX_compute_key(ctx->ca_ctx->ka_ctx, pubkey, ctx->bn_ctx)) {
        log_err("Invalid arguments");
        return 0;
    }

    return 1;
}