VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; K10 32nm (300f10); 2011 AMD A8-3850; 4 x 2900MHz; hydra5, supercop-20250415

[Page version: 20250523 10:17:49]

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 1.06 1.07 1.11 tango642 1.74 1.74 1.75 chacha8 1.87 1.88 1.90 salsa208 2.45 2.46 2.47 chacha12 2.66 2.66 2.67 salsa2012 2.79 2.80 2.81 T:hc128 3.69 3.70 3.75 T:tpy 3.72 3.73 3.74 T:cryptmtv3 3.74 3.74 3.75 T:tpy6 3.84 3.85 3.85 T:nlsv2 3.87 3.88 3.89 chacha20 3.89 3.90 3.91 T:sosemanuk 3.95 3.95 3.99 T:hc256 4.00 4.00 4.00 T:trivium 4.14 4.16 4.23 T:snow20 4.23 4.24 4.24 T:rabbit 4.24 4.24 4.27 xsalsa20 4.24 4.25 4.27 salsa20 4.25 4.26 4.28 T:panama 4.69 4.69 4.70 T:lexv2 5.22 5.24 5.25 T:tpypy 9.67 9.69 9.70 T:aes128estream 18.02 18.03 18.07 T:aes256estream 21.72? 24.75? 24.80? T:aes128ctr 24.11? 25.34? 46.07? T:aes192ctr 28.55 29.32 30.13 T:ocelot1 30.19 30.38 30.85 T:ocelot2 28.59 31.42 31.76 T:aes256ctr 48.19 49.59 50.93 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 1.31 1.32 1.35 tango642 1.78 1.78 1.78 chacha8 1.90 1.91 1.92 salsa208 2.49 2.49 2.49 chacha12 2.69 2.69 2.69 salsa2012 3.91 3.92 3.92 chacha20 4.06 4.06 4.06 T:nlsv2 4.15 4.15 4.15 T:sosemanuk 4.17 4.17 4.17 T:trivium 4.27 4.27 4.31 T:snow20 4.27 4.27 4.29 salsa20 4.36 4.36 4.36 T:rabbit 4.37 4.37 4.38 T:cryptmtv3 4.39 4.39 4.40 xsalsa20 4.70 4.70 4.71 T:tpy6 4.85 4.85 4.85 T:lexv2 5.55 5.55 5.56 T:panama 5.63 5.63 5.64 T:tpy 7.12 7.12 7.13 T:tpypy 7.30 7.30 7.31 T:hc128 9.75 9.75 9.75 T:aes128estream 15.67 15.67 15.70 T:hc256 18.15 18.15 18.17 T:aes256estream 25.19 25.23 25.26 T:aes128ctr 28.69? 28.76? 42.17? T:aes192ctr 30.80 31.33 31.81 T:ocelot1 32.07 32.07 32.22 T:aes256ctr 32.32 32.43 32.74 T:ocelot2 51.02 51.98 52.93 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 1.73 1.73 1.73 tango642 1.82 1.82 1.84 chacha8 1.95 1.95 1.96 salsa208 2.52 2.53 2.55 chacha12 2.73 2.74 2.74 salsa2012 3.95 3.99 4.00 chacha20 4.31 4.33 4.33 salsa20 4.44 4.45 4.50 T:snow20 4.45 4.45 4.45 T:trivium 4.54 4.55 4.57 T:nlsv2 4.56 4.57 4.57 T:rabbit 4.61 4.61 4.63 T:sosemanuk 4.61 4.62 4.64 xsalsa20 5.11 5.11 5.11 T:lexv2 5.99 5.99 5.99 T:cryptmtv3 6.30 6.32 6.34 T:tpy6 7.68 7.68 7.71 T:panama 8.83 8.85 8.88 T:tpy 9.85 9.89 9.90 T:aes128estream 10.26 10.26 10.28 T:tpypy 14.78 14.79 14.80 T:hc128 18.33 18.34 18.38 T:aes256estream 25.98? 26.05? 34.84? T:aes128ctr 32.95 32.95 33.27 T:aes256ctr 34.47 34.57 34.85 T:ocelot1 35.18 35.18 35.23 T:hc256 35.81 36.15 36.24 T:ocelot2 38.34? 38.41? 48.42? T:aes192ctr 55.22 56.59 58.17 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 2.11 2.11 2.11 chacha8 2.20 2.23 2.23 salsa208 2.83 2.83 2.83 tango642 2.94 2.95 2.97 chacha12 3.06 3.07 3.07 salsa2012 4.62 4.64 4.65 chacha20 4.79 4.82 4.83 salsa20 4.91 4.98 5.01 T:snow20 5.12 5.13 5.14 T:rabbit 5.19 5.19 5.20 T:trivium 5.64 5.64 5.66 xsalsa20 5.59 5.64 5.64 T:nlsv2 5.81 5.83 5.83 T:lexv2 6.04 6.04 6.05 T:sosemanuk 6.87 6.87 6.88 T:cryptmtv3 10.16 10.22 10.27 T:aes128estream 10.57 10.57 10.63 T:tpy6 13.39 13.42 13.47 T:panama 17.37 17.44 17.50 T:tpy 18.64 18.69 18.69 T:tpypy 18.90 18.90 18.92 T:aes256estream 28.06? 28.16? 37.08? T:aes128ctr 34.79 34.81 34.81 T:hc128 35.34 35.40 35.64 T:aes256ctr 40.72? 40.91? 51.80? T:aes192ctr 43.28 43.65 43.96 T:ocelot1 44.66 44.83 45.18 T:ocelot2 64.33 65.40 66.06 T:amastrid 87.30 87.35 87.47 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 4.50 4.56 4.56 salsa208 4.77 4.77 4.77 chacha8 5.95 5.95 5.98 salsa2012 6.69 6.69 6.72 chacha12 8.78 8.83 8.86 salsa20 10.53 10.53 10.56 chacha20 11.22 11.33 11.42 T:snow20 11.97 12.02 12.08 T:rabbit 13.95 13.95 14.06 T:aes128estream 14.45 14.45 14.47 T:trivium 14.52 14.58 14.62 T:lexv2 15.83 15.84 15.86 xsalsa20 16.47 16.59 16.61 tango642 17.30 17.53 17.75 T:cryptmtv3 21.84 21.89 21.94 T:sosemanuk 22.39 22.61 22.64 T:nlsv2 25.53 25.55 25.62 T:aes256estream 55.64 55.80 57.53 T:aes128ctr 64.45 64.52 64.84 T:tpy6 65.52 66.39 67.11 T:aes256ctr 70.81 72.14 78.39 T:aes192ctr 86.06 86.66 87.17 T:panama 126.00 126.17 126.17 T:tpypy 125.80 127.02 127.11 T:tpy 159.83 159.86 160.27 T:ocelot1 160.33 160.75 162.98 T:ocelot2 190.45 192.58 197.05 T:amastrid 290.78 291.02 291.50 T:hc128 754.05 754.05 754.41 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 41.25 41.25 41.38 chacha8 41.75 42.25 42.38 salsa208 53.88 54.00 54.50 salsa2012 55.12 55.38 60.50 chacha12 58.25 58.62 59.88 T:aes128estream 72.50 72.50 72.50 T:rabbit 77.12 78.12 78.62 salsa20 83.50 83.50 83.88 T:lexv2 84.50 84.62 85.12 chacha20 87.12 87.62 88.62 T:snow20 89.38 89.38 89.38 T:trivium 96.12 96.62 98.12 T:aes256estream 101.12 102.12 103.88 T:cryptmtv3 114.62 115.25 117.00 T:nlsv2 125.38 125.38 125.50 tango642 134.50 134.75 134.88 xsalsa20 172.75 173.00 175.25 T:sosemanuk 298.25 302.75 328.50 T:aes128ctr 331.00 334.50 347.25 T:aes256ctr 333.38 345.00 369.88 T:aes192ctr 489.75 494.75 495.75 T:tpy6 682.25 686.75 689.38 T:panama 974.00 976.75 976.88 T:tpypy 996.25 1003.38 1006.00 T:tpy 1071.38 1074.38 1088.75 T:ocelot2 1070.50 1080.38 1086.88 T:ocelot1 1320.62 1325.12 1329.38 T:amastrid 2317.50 2323.12 2325.88 T:hc128 6025.62 6025.62 6026.12 T:hc256