VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; K10 45nm (100f63); 2010 AMD Athlon II Neo K125; 1 x 1700MHz; h3neo, supercop-20250415

[Page version: 20250922 22:30:22]

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 1.21 1.21 1.23 tango642 2.82 2.82 2.82 chacha8 2.88 2.90 2.90 T:hc128 3.43 3.45 3.48 salsa208 3.47 3.48 3.50 T:tpy6 3.59 3.60 3.60 T:tpy 3.96 3.96 3.96 chacha12 4.01 4.03 4.04 T:nlsv2 4.06 4.09 4.11 T:sosemanuk 4.15 4.18 4.19 T:hc256 4.19 4.19 4.19 T:trivium 4.11 4.20 4.22 T:snow20 4.32 4.36 4.42 T:panama 4.46 4.47 4.47 T:rabbit 4.82 4.83 4.84 salsa2012 4.96 4.97 4.98 T:lexv2 5.12 5.27 5.27 T:cryptmtv3 5.81 5.81 5.82 T:tpypy 6.23 6.24 6.24 chacha20 7.47 7.48 7.49 xsalsa20 7.47 7.49 7.52 salsa20 10.22 10.27 10.31 T:aes128estream 19.37 19.40 19.42 T:aes256estream 27.84 27.86 28.06 T:aes128ctr 28.86 29.49 30.36 T:ocelot1 31.19 31.35 31.59 T:aes192ctr 31.91 33.01 33.46 T:ocelot2 34.73 35.00 35.17 T:aes256ctr 53.38 54.33 55.95 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 1.46 1.46 1.48 tango642 2.84 2.84 2.84 chacha8 3.46 3.48 3.49 salsa208 3.99 3.99 3.99 chacha12 4.28 4.29 4.30 T:nlsv2 4.25 4.31 4.32 T:snow20 4.32 4.34 4.35 T:sosemanuk 4.35 4.35 4.35 T:trivium 4.46 4.47 4.48 T:tpy6 4.59 4.59 4.59 T:rabbit 4.86 4.86 4.87 salsa2012 5.13 5.13 5.14 T:lexv2 5.61 5.61 5.61 T:tpy 5.64 5.65 5.69 T:panama 5.91 6.02 6.02 T:cryptmtv3 6.27 6.27 6.27 chacha20 7.51 7.52 7.54 salsa20 7.53 7.53 7.54 T:hc128 7.64 7.64 7.64 xsalsa20 7.84 7.84 7.85 T:tpypy 10.31 10.33 10.36 T:aes128estream 16.45 16.45 16.46 T:hc256 19.51 19.52 19.52 T:aes256estream 28.38 28.39 28.53 T:aes128ctr 31.24 31.40 32.03 T:ocelot1 31.86 31.86 32.04 T:aes192ctr 34.14 34.95 35.19 T:ocelot2 35.42 35.54 35.65 T:aes256ctr 56.06 56.71 57.49 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 1.88 1.88 1.89 tango642 2.89 2.89 2.89 chacha8 3.50 3.51 3.52 salsa208 4.03 4.03 4.04 chacha12 4.45 4.51 4.51 T:snow20 4.63 4.63 4.63 T:trivium 4.79 4.80 4.81 T:rabbit 4.84 4.84 4.85 T:sosemanuk 4.90 4.91 4.92 salsa2012 5.01 5.01 5.02 T:nlsv2 5.41 5.41 5.42 T:lexv2 6.10 6.11 6.13 T:tpy6 6.32 6.32 6.32 chacha20 7.55 7.56 7.75 T:cryptmtv3 7.56 7.57 7.60 salsa20 7.79 7.82 7.86 T:panama 7.90 7.91 7.92 xsalsa20 8.96 8.96 8.97 T:tpy 10.41 10.46 10.48 T:aes128estream 11.21 11.22 11.24 T:tpypy 15.26 15.26 15.26 T:hc128 19.69 19.74 19.75 T:aes256estream 29.28 29.33 29.34 T:aes128ctr 32.73 32.84 32.88 T:aes192ctr 34.26 34.91 34.95 T:ocelot1 36.29 36.50 36.52 T:aes256ctr 36.90 36.92 36.93 T:hc256 37.53 37.68 38.23 T:ocelot2 59.08 59.78 60.67 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 2.97 2.97 2.97 tango642 3.27 3.28 3.28 chacha8 3.60 3.61 3.62 salsa208 4.59 4.59 4.62 chacha12 4.97 5.01 5.06 T:snow20 5.30 5.30 5.30 salsa2012 5.35 5.35 5.38 T:rabbit 5.37 5.37 5.38 T:trivium 6.13 6.17 6.20 T:lexv2 6.26 6.28 6.30 T:sosemanuk 6.48 6.51 6.53 T:nlsv2 7.22 7.24 7.25 chacha20 8.16 8.16 8.24 salsa20 8.90 8.90 8.93 T:cryptmtv3 9.05 9.06 9.08 xsalsa20 10.45 10.46 10.50 T:tpy6 10.71 10.73 10.78 T:aes128estream 13.59 13.61 13.67 T:panama 17.86 17.90 17.92 T:tpy 20.26 20.27 22.48 T:tpypy 20.25 20.28 20.32 T:aes256estream 31.70? 31.74? 38.48? T:aes128ctr 35.19? 35.30? 41.75? T:aes192ctr 35.92 35.97 36.01 T:hc128 38.71 39.05 39.16 T:aes256ctr 43.62 43.74 44.27 T:ocelot1 46.95 46.99 47.10 T:ocelot2 68.78 69.72 71.12 T:amastrid 91.44 91.45 91.47 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 4.62 4.62 4.64 salsa208 6.55 6.56 6.56 chacha8 8.53 8.56 8.56 salsa2012 9.25 9.25 9.55 chacha12 11.80 11.92 11.97 T:snow20 12.20 12.20 12.22 T:rabbit 13.02 13.03 13.11 salsa20 14.34 14.52 14.55 T:aes128estream 14.58 14.58 14.59 T:trivium 14.64 14.64 14.64 chacha20 15.05 15.14 15.22 T:lexv2 16.61 16.61 16.86 tango642 20.19 20.19 20.19 T:cryptmtv3 20.81 21.05 21.09 xsalsa20 22.42 22.48 22.50 T:sosemanuk 27.20 27.23 27.28 T:aes256estream 32.52 32.64 32.88 T:nlsv2 61.69 62.08 62.33 T:aes128ctr 63.02 63.42 65.05 T:aes192ctr 65.78 65.89 66.30 T:tpy6 69.34 70.36 72.27 T:aes256ctr 87.17 87.45 87.55 T:panama 131.72 131.89 132.11 T:tpy 135.56 135.59 136.20 T:tpypy 159.67 159.81 159.98 T:ocelot2 163.30 163.58 163.75 T:ocelot1 194.77 198.33 198.94 T:amastrid 299.88 300.36 300.45 T:hc128 789.86 790.16 790.23 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 42.25 42.25 42.38 salsa208 55.00 55.62 55.62 T:aes128estream 57.12 57.12 60.88 chacha8 71.00 71.12 71.12 salsa2012 72.88 72.88 73.12 T:rabbit 78.75 80.25 83.62 chacha12 87.62 87.62 87.75 T:trivium 89.12 89.12 89.12 T:lexv2 92.12 93.12 94.12 T:snow20 102.75 103.38 104.00 T:aes256estream 106.88 107.00 107.25 salsa20 107.12 108.12 108.62 T:cryptmtv3 119.12 121.50 123.25 chacha20 124.12 124.75 126.75 tango642 147.12 148.12 148.25 T:nlsv2 168.88 169.00 169.12 xsalsa20 177.50 177.50 177.50 T:sosemanuk 331.12 331.88 346.50 T:aes128ctr 327.00 335.38 337.50 T:aes192ctr 356.38 360.00 376.00 T:aes256ctr 503.88 505.12 508.38 T:tpy6 686.75 689.38 696.00 T:panama 1029.00 1029.25 1031.12 T:tpy 1046.25 1047.50 1050.00 T:tpypy 1048.25 1049.88 1051.50 T:ocelot2 1108.50 1109.50 1115.00 T:ocelot1 1306.38 1322.75 1365.12 T:amastrid 2397.12 2398.12 2398.62 T:hc128 6311.25 6315.38 6316.75 T:hc256