VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; Skylake (506e3); 2015 Intel Core i5-6500T; 4 x 2500MHz; thinksky, supercop-20250922

[Page version: 20251028 08:35:56]

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: (bytes,cycles)

Cycles/byte for long messages 25% 50% 75% stream 0.52 0.52 0.53 chacha8 0.60 0.61 0.61 salsa208 0.62 0.62 0.63 T:aes128ctr 0.68 0.70 0.71 tango642 0.72 0.73 0.73 chacha12 0.73 0.77 0.81 T:aes192ctr 0.85 0.86 0.87 salsa2012 0.87 0.88 0.88 aes256ctr 1.00 1.00 1.01 T:speck6496ctr 1.04 1.04 1.05 T:speck64128ctr 1.13 1.14 1.15 chacha20 1.21 1.22 1.22 T:speck128128ctr 1.24 1.25 1.26 T:speck128192ctr 1.28 1.29 1.29 T:speck128256ctr 1.35 1.36 1.36 salsa20 1.35 1.36 1.37 xsalsa20 1.47 1.48 1.49 T:simon6496ctr 1.52 1.54 1.54 T:simon64128ctr 1.67 1.73 1.78 T:tpy 1.74 1.77 1.79 T:hc128 1.80 1.81 1.82 T:sosemanuk 1.93 1.94 1.94 T:trivium 1.88 1.94 1.99 T:tpy6 1.96 1.97 1.98 T:nlsv2 2.17 2.18 2.19 T:simon128128ctr 2.17 2.21 2.26 T:hc256 2.28 2.31 2.39 T:simon128256ctr 2.50 2.52 2.56 T:cryptmtv3 2.60 2.71 2.75 T:tpypy 2.74 2.76 2.79 T:snow20 2.75 2.77 2.79 T:rabbit 2.84 2.86 2.88 T:panama 4.10 4.12 4.14 T:lexv2 8.33 8.36 8.37 T:aes128estream 12.67 12.69 12.74 T:aes256estream 16.06 16.17 17.15 T:ocelot1 18.13 18.18 18.25 T:ocelot2 30.63 30.80 31.19 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 0.54 0.54 0.55 chacha8 0.62 0.63 0.63 salsa208 0.68 0.68 0.68 T:aes128ctr 0.75 0.75 0.75 chacha12 0.85 0.86 0.87 tango642 0.88 0.88 0.89 salsa2012 0.94 0.94 0.94 aes256ctr 1.04 1.04 1.05 T:speck6496ctr 1.08 1.08 1.08 T:speck64128ctr 1.09 1.10 1.11 T:aes192ctr 1.16 1.16 1.16 chacha20 1.27 1.27 1.27 T:speck128128ctr 1.30 1.30 1.31 T:speck128192ctr 1.33 1.33 1.33 T:speck128256ctr 1.38 1.38 1.39 salsa20 1.48 1.48 1.49 xsalsa20 1.71 1.71 1.72 T:simon6496ctr 1.90 1.90 1.91 T:simon64128ctr 2.02 2.02 2.03 T:trivium 2.11 2.11 2.12 T:nlsv2 2.31 2.32 2.32 T:sosemanuk 2.45 2.45 2.46 T:simon128128ctr 2.54 2.56 2.58 T:tpy6 2.76 2.78 2.83 T:simon128256ctr 2.85 2.86 2.88 T:snow20 2.86 2.87 2.88 T:rabbit 3.01 3.03 3.03 T:cryptmtv3 3.02 3.05 3.08 T:tpy 3.77 3.78 3.79 T:panama 3.92 3.97 3.99 T:tpypy 4.24 4.25 4.26 T:lexv2 4.64 4.65 4.66 T:hc128 8.41 8.42 8.43 T:aes128estream 9.58 9.60 9.62 T:hc256 12.81 12.82 12.86 T:aes256estream 17.40 17.46 18.19 T:ocelot1 19.10 19.13 19.16 T:ocelot2 32.02 32.10 32.36 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 0.58 0.58 0.59 chacha8 0.66 0.66 0.68 salsa208 0.77 0.78 0.78 T:aes128ctr 0.79 0.79 0.80 chacha12 0.91 0.91 0.92 salsa2012 1.05 1.05 1.06 aes256ctr 1.10 1.11 1.11 T:speck6496ctr 1.12 1.13 1.15 tango642 1.14 1.14 1.15 T:speck64128ctr 1.19 1.20 1.21 chacha20 1.33 1.34 1.34 T:speck128128ctr 1.37 1.37 1.38 T:speck128192ctr 1.41 1.41 1.41 T:speck128256ctr 1.42 1.43 1.43 salsa20 1.61 1.63 1.67 T:aes192ctr 1.68 1.68 1.69 xsalsa20 2.09 2.09 2.10 T:simon6496ctr 2.16 2.16 2.17 T:trivium 2.41 2.42 2.43 T:nlsv2 2.50 2.51 2.53 T:simon64128ctr 2.87 2.88 2.89 T:simon128128ctr 3.01 3.03 3.04 T:rabbit 3.01 3.03 3.05 T:snow20 3.18 3.20 3.21 T:sosemanuk 3.45 3.49 3.57 T:tpy6 3.50 3.51 3.55 T:simon128256ctr 4.38 4.43 4.46 T:cryptmtv3 4.46 4.47 4.50 T:lexv2 5.25 5.27 5.30 T:tpy 5.31 5.32 5.33 T:panama 6.17 6.22 6.26 T:tpypy 8.51 8.53 8.55 T:aes128estream 9.43 9.44 9.47 T:hc128 13.04 13.05 13.07 T:aes256estream 19.74 19.80 19.85 T:ocelot1 20.64 20.67 20.72 T:ocelot2 21.88 21.91 21.95 T:hc256 34.24 34.55 34.71 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 0.81 0.82 0.84 chacha8 0.93 0.94 0.96 salsa208 1.08 1.08 1.08 T:aes128ctr 1.11 1.12 1.13 chacha12 1.27 1.28 1.30 salsa2012 1.36 1.36 1.38 T:speck6496ctr 1.40 1.41 1.42 T:speck64128ctr 1.43 1.43 1.44 aes256ctr 1.61 1.62 1.63 T:speck128128ctr 1.65 1.66 1.67 T:speck128192ctr 1.67 1.68 1.69 chacha20 1.70 1.72 1.72 T:speck128256ctr 1.83 1.85 1.87 tango642 1.97 1.98 1.99 salsa20 2.58 2.59 2.61 T:trivium 2.66 2.67 2.68 xsalsa20 2.97 3.02 3.07 T:aes192ctr 3.15 3.18 3.22 T:nlsv2 3.29 3.31 3.36 T:simon64128ctr 3.40 3.43 3.46 T:snow20 3.43 3.45 3.47 T:rabbit 3.72 3.73 3.74 T:simon6496ctr 4.76 4.90 4.91 T:cryptmtv3 4.95 4.97 5.00 T:simon128128ctr 5.09 5.12 5.15 T:lexv2 5.35 5.37 5.39 T:simon128256ctr 5.54 5.56 5.59 T:sosemanuk 5.97 6.05 6.17 T:tpy6 8.81 8.86 8.89 T:aes128estream 9.36 9.40 9.44 T:panama 11.06 11.22 11.35 T:tpy 11.85 11.96 12.18 T:tpypy 13.65 13.67 13.71 T:aes256estream 22.20 22.32 22.37 T:hc128 24.69 24.77 24.85 T:ocelot2 25.88 25.94 26.06 T:ocelot1 39.91 40.19 40.47 T:amastrid 54.70 54.79 54.88 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 3.33 3.34 3.34 chacha8 3.83 3.84 3.88 salsa208 3.92 3.92 4.08 T:speck6496ctr 4.05 4.08 4.11 T:speck64128ctr 4.23 4.27 4.30 chacha12 4.61 4.62 4.92 T:speck128192ctr 4.53 4.66 5.00 T:speck128128ctr 4.67 4.72 4.73 T:aes128ctr 4.69 4.73 4.92 T:speck128256ctr 4.86 4.92 4.97 salsa2012 5.88 5.88 5.92 aes256ctr 6.06 6.14 6.16 chacha20 6.89 6.92 6.98 salsa20 7.34 7.39 7.55 T:simon6496ctr 8.06 8.08 8.12 T:trivium 8.30 8.31 8.36 T:rabbit 8.66 8.73 8.89 T:snow20 8.86 8.98 9.33 T:simon64128ctr 10.88 10.97 11.20 tango642 10.36? 11.72? 11.80? T:cryptmtv3 12.64 12.75 12.81 T:aes128estream 12.83 12.97 13.16 T:lexv2 12.98 13.03 13.20 T:simon128128ctr 13.19 13.25 13.28 xsalsa20 14.73 14.80 14.97 T:nlsv2 14.73 14.80 15.02 T:simon128256ctr 19.55 19.67 19.80 T:aes256estream 20.75 20.83 21.02 T:aes192ctr 32.31 32.47 32.56 T:sosemanuk 39.06 39.34 39.80 T:tpy6 60.98 61.34 61.80 T:panama 77.53 77.98 78.91 T:ocelot2 83.14 83.58 87.42 T:tpypy 86.66 87.75 90.12 T:tpy 102.00 102.47 103.11 T:ocelot1 115.25 115.91 116.64 T:amastrid 185.41 185.98 186.73 T:hc128 472.66 473.42 474.08 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 21.38 22.00 22.25 T:speck6496ctr 22.88 23.12 23.62 T:speck64128ctr 25.88? 26.62? 29.12? T:speck128192ctr 26.38 26.75 27.88 T:speck128256ctr 26.50 27.38 27.88 T:speck128128ctr 36.12 36.75 36.88 T:aes128ctr 37.00 37.25 37.50 chacha8 40.50 40.62 41.00 salsa208 46.25 46.25 46.50 aes256ctr 50.50 50.75 51.12 T:rabbit 50.50 51.12 51.38 T:simon6496ctr 50.50 51.12 51.50 chacha12 51.38 51.62 51.88 T:trivium 58.12 59.12 59.62 T:aes128estream 59.38 59.62 60.00 salsa2012 61.50 62.38 64.25 T:simon64128ctr 66.75 67.12 68.00 chacha20 68.25 69.00 70.50 T:snow20 71.25 71.75 72.25 salsa20 60.38? 72.00? 72.25? T:cryptmtv3 77.38 78.00 79.00 T:simon128128ctr 77.62 78.75 79.75 T:lexv2 80.62 81.00 81.88 T:nlsv2 81.62 81.88 82.50 T:aes256estream 82.25 83.75 85.88 tango642 90.38 90.75 91.88 T:simon128256ctr 119.38 120.25 120.75 xsalsa20 165.38 166.25 167.25 T:aes192ctr 258.00 259.25 260.75 T:sosemanuk 303.00 303.88 305.12 T:tpy6 478.50 479.88 483.00 T:panama 489.38 494.25 502.00 T:ocelot2 681.88 683.12 684.00 T:tpypy 692.88 697.25 699.75 T:tpy 700.00 716.38 722.00 T:ocelot1 746.75 758.12 762.38 T:amastrid 1485.75 1490.88 1493.38 T:hc128 3781.62 3786.62 3792.62 T:hc256