DES_DECRYPT
des_cbc_encrypt(buf, out, len, k, &i, DES_DECRYPT);
des_encrypt1((DES_LONG *)tin,schedule,DES_DECRYPT);
des_encrypt1((DES_LONG *)tin,schedule,DES_DECRYPT);
des_encrypt2((DES_LONG *)data,ks2,DES_DECRYPT);
des_encrypt2((DES_LONG *)data,ks3,DES_DECRYPT);
des_encrypt2((DES_LONG *)data,ks1,DES_DECRYPT);
des_ecb_encrypt(cb, cb, p[0], DES_DECRYPT);
des_ecb3_encrypt(cb, cb, p[0], p[1], p[2], DES_DECRYPT);
DES_DECRYPT);
des_cfb64_encrypt(cfb_buf1, cfb_buf2, 17, ks, &cfb_tmp, &n, DES_DECRYPT);
sizeof(plain) - 17, ks, &cfb_tmp, &n, DES_DECRYPT);
&cfb_tmp, &n, DES_DECRYPT);
&cfb_tmp, &n, DES_DECRYPT);
DES_DECRYPT);
des_ecb_encrypt(&out, &outin, ks, DES_DECRYPT);
des_ecb2_encrypt(&out, &outin, ks, ks2, DES_DECRYPT);
&iv3, DES_DECRYPT);
&iv3, &cbc2_key, &cbc3_key, DES_DECRYPT);
DES_DECRYPT);
DES_DECRYPT);
8, 1, ks, &cfb_tmp, DES_DECRYPT);