DSL_CRYPTO_KEY_VERSION
ret = nvlist_lookup_uint64(nvl, DSL_CRYPTO_KEY_VERSION, &version);
dd->dd_crypto_obj, DSL_CRYPTO_KEY_VERSION,
ret = zap_lookup(mos, dckobj, DSL_CRYPTO_KEY_VERSION, 8, 1, &version);
fnvlist_add_uint64(nvl, DSL_CRYPTO_KEY_VERSION, version);
DSL_CRYPTO_KEY_VERSION, sizeof (uint64_t), 1, &version, tx));
DSL_CRYPTO_KEY_VERSION, 8, 1, version);
(void) zap_lookup(mos, dckobj, DSL_CRYPTO_KEY_VERSION, 8, 1, &version);