+/*
+ * CCM does not support streaming. For the purpose of performance measurement,
+ * each message is encrypted using the same (key,iv)-pair. Do not use this
+ * code in your application.
+ */
+static int EVP_Update_loop_ccm(void *args)
+{
+ loopargs_t *tempargs = *(loopargs_t **) args;
+ unsigned char *buf = tempargs->buf;
+ EVP_CIPHER_CTX *ctx = tempargs->ctx;
+ int outl, count;
+ unsigned char tag[12];
+#ifndef SIGALRM
+ int nb_iter = save_count * 4 * lengths[0] / lengths[testnum];
+#endif
+ if (decrypt) {
+ for (count = 0; COND(nb_iter); count++) {
+ EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv);
+ EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, sizeof(tag), tag);
+ EVP_DecryptUpdate(ctx, NULL, &outl, NULL, lengths[testnum]);
+ EVP_DecryptUpdate(ctx, buf, &outl, buf, lengths[testnum]);
+ EVP_DecryptFinal_ex(ctx, buf, &outl);
+ }
+ } else {
+ for (count = 0; COND(nb_iter); count++) {
+ EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv);
+ EVP_EncryptUpdate(ctx, NULL, &outl, NULL, lengths[testnum]);
+ EVP_EncryptUpdate(ctx, buf, &outl, buf, lengths[testnum]);
+ EVP_EncryptFinal_ex(ctx, buf, &outl);
+ }
+ }
+ return count;
+}