Hawkynt

Diamond2

Royalty-free block cipher by Michael Paul Johnson with variable key length and substitution-permutation network structure. Uses 128-bit blocks with minimum 10 rounds for high security.

Properties

Property Value
Category Block Ciphers
Sub-category Block Cipher
Security status 🎓 Educational Only
Complexity Intermediate
Inventor Michael Paul Johnson
Year 1995
Origin 🇺🇸 United States
Source algorithms/block/diamond2.js

Parameters

Parameter Supported values
Key sizes 1 byte (8 bits) to 8192 bytes (65536 bits)
Block sizes 16 bytes (128 bits)

Security

Status: 🎓 Educational Only

No vulnerabilities are recorded for this implementation.

Documentation

References

Test vectors

25 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 — DIAMOND2.DAT record 1 - 15 rounds, 32-byte key

Field Value
rounds 15
key e834fdb933c502923d92bc9e14368e70d41c66cbdf36155033a66e07e6cc6d8d
input 5a8d872d31eedde63fc46f6c36456d8e
expected 39b60490aeef791a29015d74494aaa89

Vector 2 — DIAMOND2.DAT record 2 - 12 rounds, 31-byte key

Field Value
rounds 12
key ea9a425efd4115a12de708150404786f02053fd5090c36e93c35ddc086ee23
input 6d4dabaea1ba7ce219fa4d58477ddf04
expected 8e5172d29a01373bd26164fc07b61152

Vector 3 — DIAMOND2.DAT record 3 - 9 rounds, 30-byte key

Field Value
rounds 9
key 056c448e9fc16b3ff9016c7225573dff4440817785fd598643d69592b503
input a5a6631229d0ba0ec35debf856e0912e
expected 6c9b3cee37415139e5d986ef43182788

Vector 4 — DIAMOND2.DAT record 4 - 6 rounds, 29-byte key

Field Value
rounds 6
key 5a3b86cf3d3c147a085ea4d0bbd27bcdb7e75268a52ad226bb1d9aed02
input ddcb0a0aa58c3f9a29250858c0d09bf5
expected 361c79f6aec715c1db7f92e26b51693b

Vector 5 — DIAMOND2.DAT record 5 - 14 rounds, 28-byte key

Field Value
rounds 14
key da7089bafd4b2540aba02f430cf54aed1d880b2d9d56c5a1df864e4d
input cbbcc0138efeb183971e503da1894aeb
expected a2394d3de23d7a7d15cf5b77e8c8e82f

Vector 6 — DIAMOND2.DAT record 6 - 11 rounds, 27-byte key

Field Value
rounds 11
key ba5ec82dedba04f1c74d3428a12131dc1466a3d69b1131d201aad9
input c53be5469b9b5fd9b82df46ad04d44fc
expected 070b9cb9b28a5975d4c6d3bc5b01c7a9

Vector 7 — DIAMOND2.DAT record 7 - 8 rounds, 26-byte key

Field Value
rounds 8
key 3cc215d708d03e13260a97b55b290154c6b1b97848c4ab57159d
input 0dce02bef4444712d9a03fec590479b6
expected da0c70fb54b4cb77b494df2de82e1742

Vector 8 — DIAMOND2.DAT record 8 - 5 rounds, 25-byte key

Field Value
rounds 5
key cb920084ddf7554e6037078cbff7c6b84d40ce318d09f18a39
input 7a0ae292edbdc55f3959a09752719a77
expected 11abf94c14c04cd89da555d5e3938115

Vector 9 — DIAMOND2.DAT record 9 - 13 rounds, 24-byte key

Field Value
rounds 13
key 20c4357c5b0d24649c0f240235f8f44ba3554c69cdd3def6
input b3ca5e53b7bfa9b771be2f5850a47cd6
expected 10db36b67930e8075a65f3fff8f51475

Vector 10 — DIAMOND2.DAT record 10 - 10 rounds, 23-byte key

Field Value
rounds 10
key 9e786e7613ddeb65c4198055370e87aca311d8516cbbdc
input 89c2d70c333f565add4f00861cd9aad3
expected 218e81b4516473decd28338295ce2d07

Vector 11 — DIAMOND2.DAT record 11 - 7 rounds, 22-byte key

Field Value
rounds 7
key 83c4babf755e1a0262e43e3f1a409c187b98ec81fb50
input 123219a8633b497f61934527fc6b9347
expected 4f83c10a25481432bbb74f74dabdf9ed

Vector 12 — DIAMOND2.DAT record 12 - 15 rounds, 21-byte key

Field Value
rounds 15
key 2ddd7997e72b26db904429db1858418a888ab03a69
input 41591c58686f19b97ca408e92d04b78d
expected 727eb9c981a74a3f493ef81496abb269

Vector 13 — DIAMOND2.DAT record 13 - 12 rounds, 20-byte key

Field Value
rounds 12
key 853605888bb37d5b36b055bced151e276d84a717
input 3c9904a551965b9bd14c2c0b8751e5a8
expected cfd8820adc63b431b1b692a9ddeb216a

Vector 14 — DIAMOND2.DAT record 14 - 9 rounds, 19-byte key

Field Value
rounds 9
key 93bb32977b845e258b459a088534d34451cb51
input d8cd5dea26bd945ad0bd6ae78fee018e
expected da70b8d5d1259d2eb671b3692e86c6ea

Vector 15 — DIAMOND2.DAT record 15 - 6 rounds, 18-byte key

Field Value
rounds 6
key 212503aae04100c8db7567b83d3ad4dd02ed
input 352ecdd94a37ab5e2a096d8f3f411026
expected 60d0ec68abd975e07b3d892e4e329847

Vector 16 — DIAMOND2.DAT record 16 - 14 rounds, 17-byte key

Field Value
rounds 14
key 599b02fbd0d321a789eb97b388bf77c663
input 56a25a87d40ab25a1dd972a7d154f8a5
expected 081420f230d5a85ab2b55453c43c7967

Vector 17 — DIAMOND2.DAT record 17 - 11 rounds, 16-byte key

Field Value
rounds 11
key 3893a60cb8a96b9a931908514dd4ce5b
input 16aa615ac61230933525f7723db0c62f
expected 67b8c9775c1ef3a1a50d67f6b8c0328b

Vector 18 — DIAMOND2.DAT record 18 - 8 rounds, 15-byte key

Field Value
rounds 8
key 2080d9f90d41a8b28c10444547f112
input abb43532dd50a9a6172e44990731f1d3
expected d07ebb85466cb7a06cd098b6d88fd05a

Vector 19 — DIAMOND2.DAT record 19 - 5 rounds, 14-byte key

Field Value
rounds 5
key 78f9d7b638e5d2b3d4bcae8de866
input 513475c4007e45ac0ebe885f48049eaf
expected 8f4e2e74cd7b29f64fbe695bac4c38b1

Vector 20 — DIAMOND2.DAT record 20 - 13 rounds, 13-byte key

Field Value
rounds 13
key 9bc7b89cd08d0d65b6751e6b37
input d17279f426aef920dfc500bdd19030ec
expected 8d038094af38a418bafc90017955d6df

Vector 21 — DIAMOND2.DAT record 21 - 10 rounds, 12-byte key

Field Value
rounds 10
key f1765b73954f7e4d643ed3ca
input ade31ea61538bf8ff5f9037ffacf6b7a
expected 4fd6830d95aedb3e9cdcb4c4abcefa4c

Vector 22 — DIAMOND2.DAT record 22 - 7 rounds, 11-byte key

Field Value
rounds 7
key 365188a69a3aa853f85ded
input 9f5e649f0981b2bd1fb18c9379c7465f
expected 45732adba08d96fc607626afa6bd32f8

Vector 23 — DIAMOND2.DAT record 23 - 15 rounds, 10-byte key

Field Value
rounds 15
key 78bb28b4cacd56a48b4d
input 2c680dfae36a7e10bb5732522af3ef63
expected 76f0eccc8aee86aba9a3de405d34377a

Vector 24 — DIAMOND2.DAT record 24 - 12 rounds, 9-byte key

Field Value
rounds 12
key aab680401c069e86f1
input 919881900f2560281c5482c60c917167
expected 9e9130ccd02af6a757aec03fc2efac3f

Vector 25 — DIAMOND2.DAT record 25 - 9 rounds, 8-byte key

Field Value
rounds 9
key 3361066b2c297543
input 787699fcb627774fcf0f0d82462d6e7d
expected ceb8b4f88c02df34addaf431e7a7a07c

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