CTX_CMD
PUTCTX16(des_ctx, CTX_CMD, CMD_3DES);
PUTCTX16(reqp, CTX_CMD, CMD_DSASIGN);
PUTCTX16(reqp, CTX_CMD, CMD_DSAVERIFY);
PUTCTX16(reqp, CTX_CMD, cmd);
PUTCTX16(reqp, CTX_CMD, CMD_RSAPRIVATE);
PUTCTX16(reqp, CTX_CMD, CMD_RSAPUBLIC);