000002d0  c7 51 5e a0 fb 55 5a 01  34 cc d1 a6 22 df d6 00  |.Q^..UZ.4..."...|
000002e0  f5 73 e0 9e b8 9d 2a a9  49 3a 99 ba 17 00 80 14  |.s....*.I:......|
000002f0  95 47 77 a1 48 b4 e7 ba  6a e8 0e 4e ee 55 25 f5  |.Gw.H...j..N.U%.|
00000300  ea 82 65 b4 3f db a2 94  03 cc d3 6c 4a e6 cf 57  |..e.?......lJ..W|
00000310  25 4c 79 b8 fb ab dd 1f  68 e4 55 87 b1 46 12 30  |%Ly.....h.U..F.0|

00000030  6f f4 cb 8a 13 74 a2 ee  b7 27 69 b4 41 c0 90 68  |o....t...'i.A..h|
00000040  bc 02 69 e1 c6 48 4f 39  36 30 25 ca 4c 17 ce 83  |..i..HO960%.L...|
00000050  9e 08 56 e3 05 49 93 9e  2e c4 fb e6 c8 01 f1 0f  |..V..I..........|
00000060  c5 70 0f 08 83 48 e9 48  ef 6e 50 8b 05 7e e5 84  |.p...H.H.nP..~..|
00000070  25 fa 55 c7 ae 31 02 27  00 ef 3f 98 86 20 12 89  |%.U..1.'..?.. ..|

00000030  fd aa 10 47 00 9a 5d ad  4c d8 90 f1 cf 13 10 73  |...G..].L......s|
00000040  31 f1 df 22 f3 42 58 b0  10 25 43 eb cc a8 00 01  |1..".BX..%C.....|
00000050  7e 00 12 01 69 01 67 00  75 00 a4 b9 09 90 b4 18  |~...i.g.u.......|
00000060  58 14 87 bb 13 a2 cc 67  70 0a 3c 35 98 04 f9 1b  |X......gp.<5....|
00000070  df b8 e3 77 cd 0e c8 0d  dc 10 00 00 01 47 97 99  |...w.........G..|

func permuteInitialBlock(block uint64) uint64 {
	// block = b7 b6 b5 b4 b3 b2 b1 b0 (8 bytes)
	b1 := block >> 48
	b2 := block << 48
	block ^= b1 ^ b2 ^ b1<<48 ^ b2>>48

	// block = b1 b0 b5 b4 b3 b2 b7 b6
	b1 = block >> 32 & 0xff00ff
	b2 = (block & 0xff00ff00)
	block ^= b1<<32 ^ b2 ^ b1<<8 ^ b2<<24 // exchange b0 b4 with b3 b7

	// block is now b1 b3 b5 b7 b0 b2 b4 b6, the permutation:
	//                  ...  8

00000190  c7 ea 4a b8 33 0b 30 e2  6d a4 82 dc 28 35 1f f2  |..J.3.0.m...(5..|
000001a0  ac 23 41 10 a4 d4 1a 40  28 4d ea db 32 d5 06 de  |.#A....@(M..2...|
000001b0  1e 37 91 77 34 ed b4 c8  f2 1c 44 de ee 2f dd af  |.7.w4.....D../..|
000001c0  61 cc 1e 59 87 a6 be 36  b0 8e a3 61 01 aa f4 60  |a..Y...6...a...`|
000001d0  1e c8 3a 3c 53 57 31 28  3e 40 32 95 67 02 41 9c  |..:<SW1(>@2.g.A.|

00000030  b4 b5 5b de b9 7a f9 d1  bc 90 ff 2c 1d d7 fe ed  |..[..z.....,....|
00000040  2f 6e 29 d8 08 61 0b 9d  cc 7d 64 6a 00 9c 00 00  |/n)..a...}dj....|
00000050  09 ff 01 00 01 00 00 17  00 00 16 03 03 02 59 0b  |..............Y.|
00000060  00 02 55 00 02 52 00 02  4f 30 82 02 4b 30 82 01  |..U..R..O0..K0..|
00000070  b4 a0 03 02 01 02 02 09  00 e8 f0 9d 3f e2 5b ea  |............?.[.|

	a5 = 2.3782041382114385731252e4
	a6 = 1.1819493347062294404278e4
	a7 = 8.8709406962545514830200e2
	b0 = 1.0000000000000000000e0
	b1 = 4.2313330701600911252e1
	b2 = 6.8718700749205790830e2
	b3 = 5.3941960214247511077e3
	b4 = 2.1213794301586595867e4
	b5 = 3.9307895800092710610e4
	b6 = 2.8729085735721942674e4
	b7 = 5.2264952788528545610e3
	// Coefficients for approximation to erf in 0.85 < |x| <= 1-2*exp(-25)
	c0 = 1.42343711074968357734e0

00000260  e4 c7 78 0d ae cb be 9e  4e 36 24 31 7b 6a 0f 39  |..x.....N6$1{j.9|
00000270  95 12 07 8f 2a 16 03 03  00 b6 0c 00 00 b2 03 00  |....*...........|
00000280  1d 20 04 b4 79 b4 2c 1d  0f b3 4b ff 67 e7 24 88  |. ..y.,...K.g.$.|
00000290  d6 db 4f 1e 66 da 0e f2  89 5a 53 ed 4e ba ad 4c  |..O.f....ZS.N..L|
000002a0  81 0a 04 03 00 8a 30 81  87 02 42 01 fb 16 53 43  |......0...B...SC|

00000100  cb 3b 74                                          |.;t|
>>> Flow 2 (server to client)
00000000  16 03 03 00 5d 02 00 00  59 03 03 54 28 b4 3e d3  |....]...Y..T(.>.|
00000010  f8 21 2a 34 c9 6b 54 76  aa d2 cf 5e 07 7a aa e2  |.!*4.kTv...^.z..|
00000020  10 cb 3e ed 87 f4 3e 70  44 d0 35 20 6e b4 f0 71  |..>...>pD.5 n..q|
00000030  76 96 1e 2a 57 74 4b db  9a 11 0a af 06 ea 3b 20  |v..*WtK.......; |

00000030  6f f4 cb 8a 13 74 a2 ee  b7 27 69 b4 41 c0 90 68  |o....t...'i.A..h|
00000040  bc 02 69 e1 c6 48 4f 39  36 30 25 ca 4c 17 ce 83  |..i..HO960%.L...|
00000050  9e 08 56 e3 05 49 93 9e  2e c4 fb e6 c8 01 f1 0f  |..V..I..........|
00000060  c5 70 0f 08 83 48 e9 48  ef 6e 50 8b 05 7e e5 84  |.p...H.H.nP..~..|
00000070  25 fa 55 c7 ae 31 02 27  00 ef 3f 98 86 20 12 89  |%.U..1.'..?.. ..|