Add sequence 800

doc/token-categories.txt

@@ -6,7 +6,11 @@ LANL's CTF contest allows for easy addition of new modules which can use
 A point may only be claimed once per team, but multiple teams can claim
 the same token and each will get a point.  Tokens look like this:
 
-    example:xylep-donut-nanox
+    example:xenon-donut-helix
+
+where "example" is the category name, and "xenon-donut-helix" is a
+bubblebabble hash of a 32-bit random number.  The entire string must be
+submitted as the token.
 
 Tokens are issued by the token server using the tokencli program at the
 end of this document.  They can also be issued before the beginning of a

packages/sequence/600/index.mdwn

@@ -1,26 +1,5 @@
-    00000000  61 61 9e 23 01 0c 0c 40  0d 05 40 29 13 08 0d 01
+    C: 00 f1 00 b4 0b 68 65 6c 6c 6f 20 77 6f 72 6c 64
-    00000010  05 0c 4e 40 40 33 0f 0d  05 40 19 05 01 12 13 40
+    S: 00 bf 00 f1 02 68 69
-    00000020  01 07 0f 4d 4d 0e 05 16  05 12 40 0d 09 0e 04 40
+    C: 00 f3 00 bf 0b 68 6f 77 20 61 72 65 20 79 6f 75
-    00000030  08 0f 17 40 0c 0f 0e 07  6a 10 12 05 03 09 13 05
+    S: 00 ca 00 f3 0d 6e 6f 74 20 62 61 64 2c 20 79 6f 75 3f
-    00000040  0c 19 4d 4d 08 01 16 09  0e 07 40 0c 09 14 14 0c
+    C: __ __ __ __ __ 62 65 65 6e 20 77 6f 72 73 65
-    00000050  05 40 0f 12 40 0e 0f 40  0d 0f 0e 05 19 40 09 0e
-    00000060  40 0d 19 40 10 15 12 13  05 4c 40 01 0e 04 40 0e
-    00000070  0f 14 08 09 0e 07 6a 10  01 12 14 09 03 15 0c 01
-    00000080  12 40 14 aa 61 62 9d 0f  40 09 0e 14 05 12 05 13
-    00000090  14 40 0d 05 40 0f 0e 40  13 08 0f 12 05 4c 40 29
-    000000a0  40 14 08 0f 15 07 08 14  40 29 40 17 0f 15 0c 04
-    000000b0  40 13 01 09 0c 40 01 02  0f 15 14 40 01 6a 0c 09
-    000000c0  14 14 0c 05 40 01 0e 04  40 13 05 05 40 14 08 05
-    000000d0  40 17 01 14 05 12 19 40  10 01 12 14 40 0f 06 40
-    000000e0  14 08 05 40 17 0f 12 0c  04 4e 40 40 29 14 40 09
-    000000f0  13 40 01 40 17 01 19 40  29 40 08 01 16 05 40 0f
-    00000100  06 6a 04 12 09 16 09 3b  61 63 9c 0e 07 40 0f 06
-    00000110  06 40 14 08 05 40 13 10  0c 05 05 0e 40 01 0e 04
-    00000120  40 12 05 07 15 0c 01 14  09 0e 07 40 14 08 05 40
-    00000130  03 09 12 03 15 0c 01 14  09 0f 0e 4e 40 40 37 08
-    00000140  05 0e 05 16 05 12 40 29  6a 06 09 0e 04 40 0d 19
-    00000150  13 05 0c 06 40 07 12 0f  17 09 0e 07 40 07 12 09
-    00000160  0d 40 01 02 0f 15 14 40  14 08 05 40 0d 0f 15 14
-    00000170  08 5b 40 17 08 05 0e 05  16 05 12 40 09 14 40 09
-    00000180  13 40 01 40 04 01 0d 10  4c 6a 04 bb __ __ __
-

packages/sequence/600/key

@@ -1 +1 @@
-61 64 9b
+01 00 00 ca 0a

packages/sequence/600/summary

@@ -1 +1 @@
-X-Modem + xor
+Packet sequence numbers

packages/sequence/700/index.mdwn

@@ -1,5 +1,25 @@
-    C: 00 f1 00 b4 0b 68 65 6c 6c 6f 20 77 6f 72 6c 64
+    00000000  01 01 fe 43 61 6c 6c 20  6d 65 20 49 73 68 6d 61
-    S: 00 bf 00 f1 02 68 69
+    00000010  65 6c 2e 20 53 6f 6d 65  20 79 65 61 72 73 20 61
-    C: 00 f3 00 bf 0b 68 6f 77 20 61 72 65 20 79 6f 75
+    00000020  67 6f e2 80 94 6e 65 76  65 72 20 6d 69 6e 64 20
-    S: 00 ca 00 f3 0d 6e 6f 74 20 62 61 64 2c 20 79 6f 75 3f
+    00000030  68 6f 77 20 6c 6f 6e 67  20 70 72 65 63 69 73 65
-    C: __ __ __ __ __ 62 65 65 6e 20 77 6f 72 73 65
+    00000040  6c 79 e2 80 94 68 61 76  69 6e 67 20 6c 69 74 74
+    00000050  6c 65 20 6f 72 20 6e 6f  20 6d 6f 6e 65 79 20 69
+    00000060  6e 20 6d 79 20 70 75 72  73 65 2c 20 61 6e 64 20
+    00000070  6e 6f 74 68 69 6e 67 20  70 61 72 74 69 63 75 6c
+    00000080  61 72 20 9a 01 02 fd 74  6f 20 69 6e 74 65 72 65
+    00000090  73 74 20 6d 65 20 6f 6e  20 73 68 6f 72 65 2c 20
+    000000a0  49 20 74 68 6f 75 67 68  74 20 49 20 77 6f 75 6c
+    000000b0  64 20 73 61 69 6c 20 61  62 6f 75 74 20 61 20 6c
+    000000c0  69 74 74 6c 65 20 61 6e  64 20 73 65 65 20 74 68
+    000000d0  65 20 77 61 74 65 72 79  20 70 61 72 74 20 6f 66
+    000000e0  20 74 68 65 20 77 6f 72  6c 64 2e 20 49 74 20 69
+    000000f0  73 20 61 20 77 61 79 20  49 20 68 61 76 65 20 6f
+    00000100  66 20 64 72 69 76 69 db  01 03 fc 6e 67 20 6f 66
+    00000110  66 20 74 68 65 20 73 70  6c 65 65 6e 20 61 6e 64
+    00000120  20 72 65 67 75 6c 61 74  69 6e 67 20 74 68 65 20
+    00000130  63 69 72 63 75 6c 61 74  69 6f 6e 2e 20 57 68 65
+    00000140  6e 65 76 65 72 20 49 20  66 69 6e 64 20 6d 79 73
+    00000150  65 6c 66 20 67 72 6f 77  69 6e 67 20 67 72 69 6d
+    00000160  20 61 62 6f 75 74 20 74  68 65 20 6d 6f 75 74 68
+    00000170  3b 20 77 68 65 6e 65 76  65 72 20 69 74 20 69 73
+    00000180  20 61 20 64 61 6d 70 2c  20 64 72 59 __ __ __ 69

packages/sequence/700/key

@@ -1 +1,2 @@
-01 00 00 ca 0a
+01 04 fb
+01 04 FB

packages/sequence/700/summary

@@ -1 +1 @@
-Packet sequence numbers
+X-Modem sequence number

packages/sequence/800/Makefile

@@ -0,0 +1,9 @@
+all: index.mdwn
+
+.DELETE_ON_ERROR:
+
+index.mdwn: key convert.py
+	./convert.py | hd > $@
+
+clean:
+	rm -f index.mdwn

packages/sequence/800/convert.py

@@ -0,0 +1,24 @@
+#! /usr/bin/python
+
+import struct
+import random
+import sys
+
+def packet(seq, txt):
+    return struct.pack('!HB', seq, len(txt)) + txt
+
+key = open("key").read().strip()
+
+i = 0
+seq = 83
+packets = []
+while i < len(key):
+    l = random.randrange(5)+1
+    p = packet(seq, key[i:i+l])
+    packets.append(p)
+    i += l
+    seq += 1
+
+random.shuffle(packets)
+sys.stdout.write(''.join(packets))
+

packages/sequence/800/key

@@ -0,0 +1 @@
+toddled reciprocation deposit excavators

packages/sequence/800/summary

@@ -0,0 +1 @@
+Reassemble transactions based on sequence numbers

packages/sequence/sequence.mk

@@ -1 +1,9 @@
 $(eval $(call STANDARD_PUZZLE, sequence))
+
+SEQUENCE_SUBMAKES = $(wildcard packages/sequence/*/Makefile)
+SEQUENCE_SUBCLEANS = $(patsubst %/Makefile, %/clean, $(SEQUENCE_SUBMAKES))
+
+sequence-clean: $(SEQUENCE_SUBCLEANS)
+
+packages/sequence/%/clean:
+	$(MAKE) -C $(@D) clean