VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; Sandy Bridge (206a7); 2011 Intel Core i3-2310M; 2 x 2100MHz; h6sandy, supercop-20241022

[Page version: 20250808 02:31:56]

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 0.99 1.00 1.01 tango642 1.03 1.05 1.05 chacha8 1.22 1.22 1.23 salsa208 1.46 1.48 1.50 chacha12 1.73 1.75 1.78 salsa2012 2.06 2.07 2.07 T:speck6496ctr 2.09 2.11 2.12 T:trivium 2.14 2.15 2.16 T:speck64128ctr 2.29 2.30 2.32 chacha20 2.46 2.49 2.50 T:hc128 2.64 2.65 2.67 T:cryptmtv3 2.66 2.67 2.68 T:speck128128ctr 2.72 2.73 2.74 T:speck128192ctr 2.68 2.76 2.86 T:tpy 2.77 2.78 2.79 salsa20 2.78 2.79 2.81 xsalsa20 2.81 2.83 2.84 T:speck128256ctr 2.92 2.95 2.96 T:simon6496ctr 3.07 3.11 3.18 T:simon64128ctr 3.10 3.22 3.36 T:tpy6 3.27 3.28 3.30 T:sosemanuk 3.65 3.69 3.71 T:hc256 3.66 3.70 3.74 T:nlsv2 3.73 3.75 3.77 T:snow20 3.82 3.83 3.87 T:rabbit 3.84 3.88 3.92 T:panama 4.50 4.54 4.57 T:simon128128ctr 4.55 4.62 4.69 T:tpypy 4.95? 5.15? 5.78? T:simon128256ctr 5.81 5.82 5.84 T:lexv2 6.60 6.61 6.64 T:aes128ctr 7.79 7.82 7.85 T:aes192ctr 9.02 9.04 9.06 T:aes256ctr 11.35 11.38 11.41 T:aes128estream 18.19 18.22 18.26 T:aes256estream 22.10 22.73 22.84 T:ocelot1 23.33 23.47 23.57 T:ocelot2 39.17 39.53 39.87 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 1.06 1.07 1.07 chacha8 1.20 1.20 1.21 tango642 1.25 1.25 1.26 salsa208 1.49 1.50 1.51 chacha12 1.77 1.78 1.80 salsa2012 2.12 2.12 2.12 T:speck6496ctr 2.19 2.20 2.20 T:speck64128ctr 2.21 2.21 2.22 T:trivium 2.33 2.33 2.34 chacha20 2.72 2.72 2.73 T:speck128128ctr 2.78 2.78 2.79 T:speck128192ctr 2.81 2.81 2.82 salsa20 2.87 2.88 2.88 T:speck128256ctr 2.93 2.94 2.95 xsalsa20 3.11 3.12 3.13 T:cryptmtv3 3.13 3.14 3.15 T:simon6496ctr 3.41 3.42 3.48 T:simon64128ctr 3.59 3.60 3.61 T:sosemanuk 3.86 3.87 3.88 T:snow20 3.86 3.88 3.90 T:nlsv2 3.95 3.95 3.98 T:rabbit 3.92 3.96 4.05 T:tpy6 4.48 4.50 4.52 T:tpy 4.80 4.82 4.83 T:simon128128ctr 5.10 5.11 5.12 T:panama 5.75 5.76 6.13 T:simon128256ctr 5.99 6.00 6.00 T:lexv2 6.28 6.31 6.35 T:tpypy 6.30 6.31 6.32 T:hc128 7.41 7.42 7.43 T:aes128ctr 8.66 8.66 8.67 T:aes192ctr 9.86 9.87 9.88 T:aes256ctr 11.45 11.47 11.47 T:aes128estream 14.36 14.37 14.39 T:hc256 18.32 18.34 18.35 T:aes256estream 23.68 24.11 24.16 T:ocelot1 24.82 24.86 24.91 T:ocelot2 41.31 41.52 41.74 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 1.11 1.12 1.13 chacha8 1.30 1.30 1.31 salsa208 1.52 1.53 1.55 chacha12 1.54 1.54 1.55 tango642 1.82 1.82 1.84 salsa2012 2.19 2.20 2.20 T:speck6496ctr 2.27 2.28 2.29 T:speck64128ctr 2.38 2.40 2.41 chacha20 2.39 2.41 2.41 T:trivium 2.79 2.80 2.82 T:speck128128ctr 2.85 2.86 2.87 T:speck128192ctr 2.85 2.86 2.86 salsa20 2.95 2.95 2.96 T:speck128256ctr 3.17 3.18 3.20 xsalsa20 3.46 3.47 3.51 T:simon6496ctr 3.94 3.95 4.01 T:simon64128ctr 4.06 4.08 4.10 T:snow20 4.15 4.15 4.17 T:rabbit 4.20 4.21 4.22 T:sosemanuk 4.19 4.23 4.25 T:nlsv2 4.41 4.42 4.44 T:cryptmtv3 5.23 5.28 5.36 T:tpy6 5.25 5.28 5.31 T:simon128128ctr 6.29 6.30 6.31 T:lexv2 6.55 6.77 7.07 T:simon128256ctr 7.13 7.19 7.22 T:panama 7.29 7.45 7.49 T:tpy 8.72 8.74 8.75 T:aes128ctr 8.99 9.04 9.10 T:tpypy 10.04 10.06 10.11 T:aes192ctr 11.26 11.28 11.30 T:aes256ctr 11.57 11.58 11.60 T:aes128estream 12.67 12.68 12.70 T:hc128 18.51 18.54 18.57 T:aes256estream 26.26 26.48 26.72 T:ocelot1 27.22 27.29 27.40 T:ocelot2 32.15 32.18 32.20 T:hc256 45.24 45.43 45.56 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 1.31 1.32 1.34 chacha8 1.54 1.55 1.56 salsa208 1.80 1.81 1.84 chacha12 2.12 2.13 2.15 salsa2012 2.43 2.44 2.45 T:speck6496ctr 2.45 2.46 2.48 tango642 2.50 2.51 2.52 T:speck64128ctr 2.77 2.79 2.81 chacha20 2.83 2.87 2.95 T:trivium 3.03 3.05 3.06 T:speck128128ctr 3.11 3.13 3.15 T:speck128192ctr 3.19 3.22 3.23 T:speck128256ctr 3.28 3.29 3.30 salsa20 4.14 4.15 4.18 xsalsa20 4.58 4.61 4.62 T:snow20 4.66 4.68 4.70 T:rabbit 4.90 4.91 4.93 T:cryptmtv3 5.10 5.11 5.12 T:simon6496ctr 5.02 5.13 5.18 T:nlsv2 5.84 5.85 5.86 T:sosemanuk 6.56? 6.62? 7.60? T:simon64128ctr 7.07 7.09 7.11 T:lexv2 8.12 8.20 8.90 T:simon128128ctr 8.35 8.49 8.63 T:tpy6 10.14 10.15 10.18 T:simon128256ctr 11.91 11.93 11.95 T:aes128estream 12.53 12.57 12.63 T:panama 12.92 12.96 13.00 T:aes128ctr 14.59 14.65 14.75 T:aes192ctr 14.84 14.92 15.38 T:tpy 15.91 15.93 15.97 T:aes256ctr 16.76 16.85 16.94 T:tpypy 18.97 19.00 19.05 T:aes256estream 29.65 29.67 29.70 T:hc128 32.58 32.78 33.02 T:ocelot1 33.24 33.54 33.78 T:ocelot2 52.74 53.08 53.24 T:amastrid 79.67 79.71 79.78 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 3.33 3.33 3.33 chacha8 4.06 4.09 4.12 salsa208 4.30 4.38 4.41 chacha12 5.06 5.08 5.11 salsa2012 5.28 5.33 5.45 T:speck6496ctr 5.33 5.42 5.52 T:speck64128ctr 6.11 6.19 6.34 T:speck128128ctr 6.19 6.30 6.41 T:speck128192ctr 6.28 6.34 6.45 T:speck128256ctr 6.41 6.42 6.44 chacha20 7.22 7.25 7.28 salsa20 8.66 8.73 8.80 T:trivium 10.78 10.84 11.00 T:rabbit 11.02 11.08 11.17 T:simon6496ctr 11.34 11.42 11.61 T:snow20 12.50 12.58 12.67 T:cryptmtv3 12.75 12.83 12.95 T:simon64128ctr 14.08 14.23 14.47 tango642 14.86 14.92 14.97 xsalsa20 16.25 16.31 16.39 T:aes128estream 16.91 17.00 17.22 T:lexv2 17.12 17.30 18.11 T:nlsv2 17.50 17.59 17.66 T:simon128256ctr 17.55 17.73 17.83 T:simon128128ctr 24.22 24.33 24.58 T:sosemanuk 25.12 25.23 25.36 T:aes256estream 52.91 53.66 54.12 T:tpy6 77.36 78.28 78.89 T:aes128ctr 81.33 81.61 82.00 T:panama 84.67 85.62 86.06 T:aes192ctr 90.06 90.27 90.50 T:aes256ctr 112.19 112.98 114.27 T:tpy 112.08 114.53 116.31 T:ocelot1 112.73 114.80 116.39 T:ocelot2 114.89 116.52 119.23 T:tpypy 151.33 152.59 153.69 T:amastrid 247.73 247.91 248.06 T:hc128 686.58 687.19 688.16 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 26.50 27.00 27.50 T:speck6496ctr 27.75 28.25 28.62 T:speck64128ctr 28.50 28.62 29.00 chacha8 28.75 29.25 30.00 T:speck128256ctr 30.00 31.88 33.25 T:speck128128ctr 32.12 32.38 32.88 T:speck128192ctr 36.25 36.62 37.12 chacha12 39.38 40.50 42.62 salsa208 53.00 54.62 57.12 chacha20 54.50 54.88 55.38 T:trivium 65.50 66.75 70.12 T:rabbit 66.25? 67.25? 79.12? salsa2012 71.88 72.25 74.38 salsa20 72.12 72.88 74.12 T:simon6496ctr 81.75 82.12 82.50 T:aes128estream 82.12 83.25 85.75 T:cryptmtv3 85.75 86.62 87.88 T:simon64128ctr 89.88 90.50 93.38 T:snow20 93.25 94.50 99.62 T:nlsv2 93.88 94.88 96.00 T:aes256estream 101.25 102.38 104.12 T:lexv2 107.00 107.88 109.88 tango642 115.38 116.38 118.38 T:simon128128ctr 119.00 120.50 121.88 T:simon128256ctr 132.62 133.62 134.25 xsalsa20 194.75 195.88 197.88 T:sosemanuk 398.12 403.00 419.00 T:tpy6 443.38 449.62 454.00 T:aes128ctr 465.62 473.88 480.75 T:aes192ctr 473.62 479.25 487.00 T:aes256ctr 640.75 643.00 648.88 T:panama 732.12 742.38 763.75 T:ocelot1 734.25 750.38 769.12 T:ocelot2 878.62 883.88 901.38 T:tpy 898.25 901.50 904.00 T:tpypy 996.00 1003.38 1013.12 T:amastrid 1976.62 1978.12 1979.50 T:hc128 5493.38 5497.50 5501.75 T:hc256