ASN1TAGLEN
+ ASN1TAGLEN(keksize) + ASN1TAGLEN(0)
+ ASN1TAGLEN(pinblob_size) + ASN1TAGLEN(enckeysize);
+ ASN1TAGLEN(keysize) + 4;
req_pl_size = sizeof(struct keygen_req_pl) + ASN1TAGLEN(pinblob_size);
+ ASN1TAGLEN(keysize) + ASN1TAGLEN(inbufsize);
rep_pl_size = sizeof(struct crypt_rep_pl) + ASN1TAGLEN(inbufsize + 32);