expected20 revision 1.1 1 1. tag & 0x3f
2 2. len
3
4 one pass (tag 4)
5 ========
6 b version:3
7 b sig type
8 b hash alg
9 b pubkey alg
10 8b keyid
11
12 literal data (tag 11)
13 =============
14 b binary/text
15 b length
16 c string
17 L mtime
18 text
19