comparison Of Sha Functions
| Algorithm and variant | Output size (bits) | Internal state size (bits) | Block size (bits) | Rounds | Operations | Security against collision attacks (bits) | Security against length extension attacks (bits) | Performance on Skylake (median cpb) | First published | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Long messages | 8 bytes | ||||||||||
| MD5 (as reference) | 128 | 128 (4 × 32) | 512 | 4 (16 operations in each round) | And, Xor, Or, Rot, Add (mod 232) | ≤ 18 (collisions found) | 0 | 4.99 | 55.00 | 1992 | |
| SHA-0 | 160 | 160 (5 × 32) | 512 | 80 | And, Xor, Or, Rot, Add (mod 232) | < 34 (collisions found) | 0 | ≈ SHA-1 | ≈ SHA-1 | 1993 | |
| SHA-1 | < 63 (collisions found) | 3.47 | 52.00 | 1995 | |||||||
| SHA-2 | SHA-224 SHA-256 | 224 256 | 256 (8 × 32) | 512 | 64 | And, Xor, Or, Rot, Shr, Add (mod 232) | 112 128 | 32 0 | 7.62 7.63 | 84.50 85.25 | 2004 2001 |
| SHA-384 | 384 | 512 (8 × 64) | 1024 | 80 | And, Xor, Or, Rot, Shr, Add (mod 264) | 192 | 128 | 5.12 | 135.75 | 2001 | |
| SHA-512 | 512 | 256 | 0 | 5.06 | 135.50 | 2001 | |||||
| SHA-512/224 SHA-512/256 | 224 256 | 112 128 | 288 256 | ≈ SHA-384 | ≈ SHA-384 | 2012 | |||||
| SHA-3 | SHA3-224 SHA3-256 SHA3-384 SHA3-512 | 224 256 384 512 | 1600 (5 × 5 × 64) | 1152 1088 832 576 | 24 | And, Xor, Rot, Not | 112 128 192 256 | 448 512 768 1024 | 8.12 8.59 11.06 15.88 | 154.25 155.50 164.00 164.00 | 2015 |
| SHAKE128 SHAKE256 | d (arbitrary) d (arbitrary) | 1344 1088 | min(d/2, 128) min(d/2, 256) | 256 512 | 7.08 8.59 | 155.25 155.50 | |||||
References
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