VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; K10 32nm (300f10); 2011 AMD A6-3650; 4 x 2600MHz; hydra4, supercop-20250307

[Page version: 20250419 00:25:54]

eBASC (ECRYPT Benchmarking of Stream Ciphers) is a project to measure the performance of stream ciphers. This page presents benchmark results collected in eBASC:

• Speed (cycles/byte) of encrypting an 8-byte message.
• Speed of encrypting a 64-byte message.
• Speed of encrypting a 576-byte message.
• Speed of encrypting a 1536-byte message.
• Speed of encrypting a 4096-byte message.
• Speed of encrypting a long message. This is computed as 1/3072 of the difference in cycle counts between encrypting 4096-byte messages and encrypting 1024-byte messages.

Graphs show timings for all message lengths between 0 and 4096 bytes. The stair-step shape of a typical curve on the graphs reflects the fact that these stream ciphers handle messages in blocks, such as 64-byte blocks.

Each table row lists the first quartile of many speed measurements, the median of many speed measurements, the third quartile of many speed measurements, and the name of the primitive. Measurements with large variance are indicated in red with question marks. The symbol T: (starting with supercop-20200816) means that the SUPERCOP database at the time of benchmarking did not list constant time as a goal for this implementation. The symbol T!!! means that constant time was listed as a goal for this implementation, but that the implementation failed TIMECOP. (TIMECOP failures are not necessarily security issues; they can sometimes be resolved by, e.g., declaring that a rejection-sampling condition is safe to declassify.)

There is a separate page with more information about each stream cipher and each implementation. Designers and implementors interested in submitting new stream ciphers and new implementations should read the call for submissions.

Test results

Graphs: old (bytes,cycles)

Cycles/byte for long messages 25% 50% 75% stream 1.11 1.13 1.14 tango642 1.74 1.75 1.76 chacha8 1.95 1.95 1.97 salsa208 2.46 2.46 2.47 chacha12 2.76 2.77 2.78 T:hc128 2.76 2.77 2.77 salsa2012 3.65 3.67 3.71 T:hc256 3.71 3.76 3.80 T:tpy 3.76 3.77 3.78 T:cryptmtv3 3.82 3.82 3.83 T:nlsv2 3.85 3.89 3.91 chacha20 3.99 4.00 4.03 T:snow20 3.99 4.01 4.03 T:sosemanuk 4.06 4.06 4.08 T:trivium 4.14 4.16 4.17 T:panama 4.15 4.16 4.17 T:tpy6 4.22 4.24 4.24 T:rabbit 4.31 4.33 4.34 salsa20 4.33 4.34 4.34 xsalsa20 4.68 4.68 4.71 T:lexv2 5.87 5.90 5.92 T:tpypy 9.66 9.67 9.69 T:aes128estream 17.10 17.11 17.13 T:aes256estream 21.76 22.18 22.32 T:aes128ctr 25.07 25.18 25.24 T:aes192ctr 27.85 27.90 28.02 T:aes256ctr 26.90? 29.39? 31.17? T:ocelot1 29.87 29.96 30.17 T:ocelot2 49.50 51.89 52.29 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 1.36 1.37 1.38 tango642 1.78 1.78 1.78 chacha8 1.98 1.98 1.99 salsa208 2.49 2.49 2.49 chacha12 2.80 2.80 2.80 salsa2012 3.91 3.93 3.94 chacha20 4.07 4.07 4.07 T:nlsv2 4.12 4.12 4.14 T:snow20 4.22 4.22 4.23 T:trivium 4.25 4.26 4.27 T:sosemanuk 4.34 4.36 4.36 salsa20 4.37 4.37 4.37 T:rabbit 4.38 4.39 4.40 T:cryptmtv3 4.46 4.47 4.47 xsalsa20 4.85 4.85 4.86 T:lexv2 5.17 5.18 5.18 T:tpy6 5.39 5.40 5.41 T:panama 5.70 5.74 5.74 T:tpy 7.20 7.20 7.20 T:hc128 7.82 7.83 7.83 T:tpypy 9.75 9.75 9.75 T:aes128estream 15.38 15.40 15.41 T:hc256 17.22 17.22 17.23 T:aes256estream 22.15 22.40 22.46 T:aes128ctr 25.29 25.37 25.38 T:aes192ctr 28.20 28.22 28.27 T:aes256ctr 30.47 31.32 32.53 T:ocelot1 31.90 31.96 32.07 T:ocelot2 53.00 54.27 54.50 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 1.77 1.77 1.78 tango642 1.82 1.82 1.83 chacha8 2.02 2.03 2.03 salsa208 2.54 2.54 2.55 chacha12 2.84 2.85 2.85 salsa2012 3.98 3.99 4.02 chacha20 4.32 4.33 4.35 T:snow20 4.39 4.40 4.41 salsa20 4.49 4.49 4.49 T:trivium 4.58 4.58 4.60 T:rabbit 4.68 4.68 4.68 xsalsa20 4.71 4.71 4.72 T:nlsv2 4.75 4.75 4.76 T:sosemanuk 5.12 5.13 5.14 T:lexv2 6.02 6.02 6.03 T:cryptmtv3 6.88 6.88 6.89 T:tpy6 7.47 7.47 7.49 T:panama 8.93 9.02 9.03 T:tpy 9.83 9.84 9.88 T:aes128estream 10.98 11.01 11.05 T:tpypy 14.56 14.56 14.56 T:hc128 17.42 17.46 17.46 T:aes256estream 22.57 22.72 22.80 T:aes128ctr 25.45 25.62 25.73 T:aes192ctr 28.80 28.82 28.86 T:aes256ctr 33.90 34.50 35.94 T:ocelot1 34.89 34.89 34.91 T:hc256 35.17 35.25 35.41 T:ocelot2 58.52 58.88 59.49 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 2.10 2.10 2.11 chacha8 2.27 2.28 2.29 salsa208 2.87 2.87 2.88 tango642 2.94 2.94 2.95 chacha12 3.16 3.16 3.17 salsa2012 4.64 4.67 4.69 chacha20 4.81 4.82 4.84 T:snow20 4.90 4.90 4.91 salsa20 5.16 5.16 5.17 T:rabbit 5.20 5.20 5.27 T:trivium 5.63 5.63 5.66 xsalsa20 5.83 5.84 5.85 T:lexv2 6.08 6.09 6.10 T:nlsv2 6.17 6.18 6.19 T:sosemanuk 6.79 6.80 6.80 T:cryptmtv3 10.11 10.19 10.19 T:aes128estream 11.36 11.36 11.45 T:tpy6 12.99 13.01 13.04 T:panama 17.58 17.58 17.76 T:tpy 17.90 17.95 18.09 T:aes256estream 19.55 19.56 19.56 T:tpypy 23.71 23.71 23.99 T:aes128ctr 26.64 26.65 26.66 T:aes192ctr 29.76 29.83 29.97 T:aes256ctr 34.26 34.26 34.28 T:hc128 43.10 43.36 44.80 T:ocelot1 43.94 44.05 44.11 T:ocelot2 67.80 69.05 69.81 T:amastrid 86.92 86.94 86.94 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 4.50 4.56 4.75 salsa208 4.78 4.78 4.78 chacha8 5.75 5.78 5.89 salsa2012 6.70 6.70 6.75 chacha12 8.70 8.70 8.81 salsa20 10.53 10.53 10.55 chacha20 11.33 11.41 11.48 T:snow20 12.25 12.30 12.30 T:rabbit 13.91 14.00 14.11 T:aes128estream 14.06 14.06 14.72 T:trivium 14.50 14.56 14.69 T:lexv2 15.31 15.36 15.38 xsalsa20 16.61 16.64 16.89 tango642 17.11 17.14 17.23 T:cryptmtv3 21.89 21.95 22.00 T:sosemanuk 24.28 24.48 24.59 T:aes256estream 30.30 30.70 30.70 T:nlsv2 37.45 38.23 39.34 T:aes128ctr 39.86 39.86 40.72 T:aes192ctr 43.39 43.66 44.61 T:aes256ctr 68.69 68.95 69.25 T:tpy6 83.45 83.55 83.72 T:panama 128.22 128.58 130.22 T:tpy 128.25 128.72 129.69 T:tpypy 156.31 156.67 156.98 T:ocelot2 156.73 159.03 159.12 T:ocelot1 191.42 192.06 193.33 T:amastrid 286.47 286.56 286.56 T:hc128 752.88 753.05 753.17 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 42.62? 42.75? 47.88? chacha8 43.50 43.62 44.12 salsa208 57.50 57.62 57.75 T:aes128estream 57.50 57.62 62.25 chacha12 74.62 74.62 74.62 T:rabbit 75.75 75.75 77.62 salsa2012 80.75 80.88 80.88 salsa20 82.88 83.38 84.25 T:lexv2 83.50 83.62 88.25 T:trivium 84.62 84.62 90.00 chacha20 87.38 89.62 90.12 T:snow20 94.50 94.88 96.00 T:aes256estream 100.12 100.62 100.88 T:cryptmtv3 125.50 125.88 126.38 tango642 135.75 135.88 135.88 xsalsa20 135.75 136.25 136.50 T:nlsv2 166.12 167.00 177.62 T:aes192ctr 164.00 172.75 179.00 T:aes128ctr 172.75 173.12 173.38 T:sosemanuk 180.75 188.75 190.50 T:aes256ctr 519.00 520.38 523.88 T:tpy6 663.12 663.75 666.25 T:panama 985.00 985.88 986.12 T:tpypy 996.12 996.38 998.88 T:tpy 1046.00 1077.38 1078.38 T:ocelot1 1078.75 1088.38 1089.12 T:ocelot2 1256.88 1270.75 1283.25 T:amastrid 2288.12 2289.62 2291.50 T:hc128 6018.38 6020.62 6022.12 T:hc256