ccm_cipher_internal
static int ccm_cipher_internal(PROV_CCM_CTX *ctx, unsigned char *out,
if (!ccm_cipher_internal(ctx, out, outl, in, inl)) {
i = ccm_cipher_internal(ctx, out, outl, NULL, 0);
if (ccm_cipher_internal(ctx, out, outl, in, inl) <= 0)