Cryptography

The RSA Data Security Secret-Key Contests: finished

DES key: 0x8558891AB0C851B6
The unknown message is: Strong cryptography makes the world a safer place.

RC5-32/12/5 (RC5-40) key: 0xF043F18131
The unknown message is: This is why you should use a longer key.

RC5-32/12/6 (RC5-48) key: 0x74A353CC0b19
The unknown message is: The magic words are Security Dynamics and RSA.

RC5-32/12/7 (RC5-56) key: 0x532B744CC20999
The unknown message is: It's time to move to a longer key length.

RC5-32/12/8 (RC5-64) key: 0x63DE7DC154F4D039
The unknown message is: Some things are better left unread.

DES-II key: 0x769E8CD9F22F5DEA
The unknown message is: Many hands make light work.

DES-II-2 key: 0x3ECDA15E704FB31C
The unknown message is: It's time for those 128-, 192-, and 256-bit keys.

DES-III key: 0x922C68C47AEADFF2
The unknown message is: See you in Rome (second AES conference, March 22-23, 1999)

The RSA Data Security Secret-Key Contests: ongoing

* Contest identifier: RC5-32/12/9
* Cipher: RC5-32/12/9 (RC5 with 32-bit wordsize, 12 rounds, and 9*8=72-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: 41 d5 97 4c 00 7a f5 f6
* Hexadecimal ciphertext:
e7 af fc be 5f 74 ec a6 11 a2 1f a8 8a 0a a1 76
dd 8e 01 d3 2b 31 a8 df 60 26 4f b0 16 ed 2c 71
89 fb 01 db ac 0f af b5 21 a8 d6 5e a6 0f 54 48
14 f5 06 1e 1f 21 8b 36

* Contest identifier: RC5-32/12/10
* Cipher: RC5-32/12/10 (RC5 with 32-bit wordsize, 12 rounds, and 10*8=80-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: 0a 36 85 4c 02 61 eb 7e
* Hexadecimal ciphertext:
3b d4 23 42 2e 25 33 85 ee 72 ff 80 61 66 a2 42
bd 88 0a 9a f7 8e 8c ed 69 bd 29 b3 e4 da 25 7a
e3 70 9a 20 4e d5 f3 fb 24 fb 7e 6a 8c 80 e6 cf
86 f7 9f 08 e1 b1 05 4e

* Contest identifier: RC5-32/12/11
* Cipher: RC5-32/12/11 (RC5 with 32-bit wordsize, 12 rounds, and 11*8=88-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: 3f 34 cc 3e 81 35 b6 7e
* Hexadecimal ciphertext:
1b ae 57 d0 f6 31 45 ee 20 ea 72 76 ff d0 f2 3d
29 cf 74 02 a0 19 5e 5a 70 2e 50 e9 22 1d 07 3b
1a 63 8b 81 5c 70 da 21 5b ef 46 13 e0 a1 dd 1f
70 0f 16 59 bf ca 89 7e 24 20 5f 17 90 34 03 08
85 6b 98 d9 dc 18 69 a3

* Contest identifier: RC5-32/12/12
* Cipher: RC5-32/12/12 (RC5 with 32-bit wordsize, 12 rounds, and 12*8=96-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: 58 e1 6b 49 ea 01 91 c8
* Hexadecimal ciphertext:
88 4a 56 09 29 f4 89 67 d3 3c 01 0d 43 cb 4b ca
1c ca 7e 8a 13 96 1f 86 0d 0f ef 34 11 bf 92 9a
e4 ad e9 f9 6f 5d bf 85 4a 6c 91 2d f0 eb 85 29
6f ed 92 93 2b 4e bf f0

* Contest identifier: RC5-32/12/13
* Cipher: RC5-32/12/13 (RC5 with 32-bit wordsize, 12 rounds, and 13*8=104-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: a1 81 0b c2 24 16 75 56
* Hexadecimal ciphertext:
73 fe 78 b6 10 ee f9 2d 00 f5 ab 22 1d 5d 32 95
b4 c0 14 5b 7a 79 e4 50 a3 67 34 bd 08 26 4d c8
90 8a 83 41 66 89 2b d6 cb b4 73 6c 22 88 96 bf
7e 71 5c 24 93 2a d4 16 4d d9 0b 07 cf 8b c8 1a
1e ad aa 10 6c 0e a1 ba

* Contest identifier: RC5-32/12/14
* Cipher: RC5-32/12/14 (RC5 with 32-bit wordsize, 12 rounds, and 14*8=112-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: 7a 4a ce 03 47 81 4f 23
* Hexadecimal ciphertext:
af d2 8f 1f 43 b1 5b 3f f3 1f d3 c7 77 b0 1c 13
ca a1 f6 82 58 4b a0 48 58 f8 57 f2 4f 10 58 1b
2a 78 1b 38 5b b9 57 89 12 2c 00 5e 49 b8 69 18
01 26 b2 4a 85 dc f5 77 f1 4a f1 4c 9c 7e 02 b8
63 17 75 2d 58 06 03 3a ed bb 0b a5 07 93 68 8f

* Contest identifier: RC5-32/12/15
* Cipher: RC5-32/12/15 (RC5 with 32-bit wordsize, 12 rounds, and 15*8=120-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: bb 7e 6b 98 3e 4a a2 0c
* Hexadecimal ciphertext:
68 b4 b3 5a 1c 8f 8c ad 43 e8 e8 e1 cb 44 fe 0a
4a fa 99 c5 16 ef f3 f4 61 1e 50 ec 01 f8 5a 00
6c 33 20 0e e3 98 5d fb 6f 9f 06 bd 21 c1 35 9e
3a 12 5f 69 9a 84 05 ce b0 24 bb c5 83 3a 72 c8

* Contest identifier: RC5-32/12/16
* Cipher: RC5-32/12/16 (RC5 with 32-bit wordsize, 12 rounds, and 16*8=128-bit key)
* Start of contest: 28 January 1997, 9 am PST
* State of contest: ongoing
* IV: a7 8b 00 e8 15 e6 2f 5d
* Hexadecimal ciphertext:
d9 3b 27 72 11 8a 65 cb ef 5b 06 74 63 76 22 16
84 f9 ec 21 56 3b 1c 1c 02 e1 70 10 50 d1 71 00
06 aa bf c1 38 e1 f1 f8 2d 63 57 bb 24 a9 7d 5d

References