- /*
- * Check if length of provided IV is supported
- * by the algorithm chosen.
- */
- if (options->iv_param) {
- if (check_supported_size(options->iv.length,
- cap->sym.cipher.iv_size.min,
- cap->sym.cipher.iv_size.max,
- cap->sym.cipher.iv_size.increment)
- != 0) {
- printf("Unsupported IV length\n");
- return -1;
- }
- /*
- * Check if length of IV to be randomly generated
- * is supported by the algorithm chosen.
- */
- } else if (options->iv_random_size != -1) {
- if (check_supported_size(options->iv_random_size,
- cap->sym.cipher.iv_size.min,
- cap->sym.cipher.iv_size.max,
- cap->sym.cipher.iv_size.increment)
- != 0) {
- printf("Unsupported IV length\n");
- return -1;
- }
- options->iv.length = options->iv_random_size;
- /* No size provided, use minimum size. */
- } else
- options->iv.length = cap->sym.cipher.iv_size.min;
+
+ check_iv_param(&cap->sym.cipher.iv_size,
+ options->cipher_iv_param,
+ options->cipher_iv_random_size,
+ &options->cipher_iv.length);