Zknd Extension Versions 1.0.0 State ratified Ratification date == Synopsis Instructions for accelerating the decryption and key-schedule functions of the AES block cipher. Instructions The following instructions are defined by this extension: aes32dsi No synopsis available. aes32dsmi No synopsis available. aes64ds No synopsis available. aes64dsm No synopsis available. aes64im No synopsis available. aes64ks1i No synopsis available. aes64ks2 No synopsis available.