Exemplos de px_cipher_init em C++ (Cpp)

Exemplo n.º 1

Arquivo: pgp-cfb.c Projeto: BioBD/Hypothetical_Indexes

int
pgp_cfb_create(PGP_CFB **ctx_p, int algo, const uint8 *key, int key_len,
			   int resync, uint8 *iv)
{
	int			res;
	PX_Cipher  *ciph;
	PGP_CFB    *ctx;

	res = pgp_load_cipher(algo, &ciph);
	if (res < 0)
		return res;

	res = px_cipher_init(ciph, key, key_len, NULL);
	if (res < 0)
	{
		px_cipher_free(ciph);
		return res;
	}

	ctx = px_alloc(sizeof(*ctx));
	memset(ctx, 0, sizeof(*ctx));
	ctx->ciph = ciph;
	ctx->block_size = px_cipher_block_size(ciph);
	ctx->resync = resync;

	if (iv)
		memcpy(ctx->fr, iv, ctx->block_size);

	*ctx_p = ctx;
	return 0;
}

Exemplo n.º 2

Arquivo: px.c Projeto: qiuyesuifeng/gpdb

static int
combo_init(PX_Combo *cx, const uint8 *key, unsigned klen,
           const uint8 *iv, unsigned ivlen)
{
    int			err;
    unsigned	bs,
                ks,
                ivs;
    PX_Cipher  *c = cx->cipher;
    uint8	   *ivbuf = NULL;
    uint8	   *keybuf;

    bs = px_cipher_block_size(c);
    ks = px_cipher_key_size(c);

    ivs = px_cipher_iv_size(c);
    if (ivs > 0)
    {
        ivbuf = px_alloc(ivs);
        memset(ivbuf, 0, ivs);
        if (ivlen > ivs)
            memcpy(ivbuf, iv, ivs);
        else
            memcpy(ivbuf, iv, ivlen);
    }

    if (klen > ks)
        klen = ks;
    keybuf = px_alloc(ks);
    memset(keybuf, 0, ks);
    memcpy(keybuf, key, klen);

    err = px_cipher_init(c, keybuf, klen, ivbuf);

    if (ivbuf)
        px_free(ivbuf);
    px_free(keybuf);

    return err;
}