VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; Silvermont (406c4); 2016 Intel Atom x5-Z8350; 4 x 1440MHz; cherry, supercop-20250922

[Page version: 20251015 23:19:42]

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 2.01 2.02 2.04 tango642 2.34 2.34 2.35 chacha8 3.09 3.10 3.10 salsa208 3.33 3.34 3.34 chacha12 4.05 4.23 4.50 T:aes192ctr 4.31 4.31 4.32 T:cryptmtv3 4.42 4.42 4.43 salsa2012 4.73 4.74 4.75 T:hc128 5.25 5.25 5.26 chacha20 5.36 5.37 5.40 T:nlsv2 5.62 5.62 5.62 T:sosemanuk 5.91 5.94 5.97 T:tpy6 5.99 6.14 6.31 T:tpy 6.19 6.20 6.21 T:aes128ctr 6.38 6.38 6.38 T:trivium 6.61 6.62 6.63 T:hc256 6.66 6.67 6.68 T:panama 6.70 6.70 6.71 aes256ctr 6.83 6.83 6.83 salsa20 6.83 6.83 6.84 xsalsa20 6.91 6.92 6.92 T:rabbit 7.11 7.12 7.13 T:snow20 8.55 8.55 8.56 T:lexv2 9.79 9.82 9.86 T:tpypy 10.06 10.07 10.07 T:speck6496ctr 10.43 10.43 10.44 T:speck64128ctr 14.82 14.83 14.85 T:aes128estream 15.20 15.29 15.47 T:simon64128ctr 16.26 16.26 16.26 T:speck128128ctr 16.77 16.77 16.77 T:speck128192ctr 17.24 17.24 17.24 T:speck128256ctr 17.96 17.97 18.00 T:simon6496ctr 24.08 24.14 24.14 T:simon128128ctr 24.36 24.57 24.73 T:aes256estream 25.40 25.56 25.99 T:simon128256ctr 42.96 43.00 43.03 T:ocelot1 46.38 46.42 46.52 T:ocelot2 85.67 85.76 89.58 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 2.41 2.42 2.42 tango642 2.42 2.42 2.42 chacha8 3.13 3.13 3.13 salsa208 3.39 3.39 3.39 chacha12 4.46 4.46 4.47 salsa2012 4.67 4.67 4.68 T:cryptmtv3 5.32 5.32 5.32 chacha20 5.71 5.71 5.73 T:nlsv2 6.06 6.06 6.06 T:sosemanuk 6.25 6.25 6.25 T:aes128ctr 6.38 6.44 6.59 T:aes192ctr 6.63 6.63 6.63 T:trivium 6.76 6.77 6.77 aes256ctr 6.86 6.86 6.86 salsa20 7.08 7.08 7.09 xsalsa20 7.14 7.14 7.14 T:rabbit 7.20 7.20 7.22 T:tpy6 7.30 7.30 7.31 T:snow20 8.58 8.58 8.70 T:tpy 8.60 8.60 8.60 T:panama 8.80 8.80 8.80 T:lexv2 10.14 10.14 10.15 T:speck6496ctr 10.51 10.51 10.51 T:speck64128ctr 12.40 12.41 12.43 T:tpypy 13.14 13.14 13.14 T:hc128 14.95 14.95 14.95 T:aes128estream 16.40 16.40 16.40 T:speck128128ctr 16.38 16.42 16.47 T:simon64128ctr 16.91 16.91 16.91 T:speck128192ctr 17.39 17.39 17.39 T:speck128256ctr 18.56 18.56 18.58 T:simon6496ctr 24.64 24.78 24.90 T:aes256estream 25.10 25.11 25.12 T:simon128128ctr 27.46 27.56 27.85 T:simon128256ctr 29.38 29.38 29.38 T:hc256 45.47 45.47 45.48 T:ocelot1 48.87 48.89 48.92 T:ocelot2 88.28 88.34 90.33 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 2.49 2.49 2.50 chacha8 3.04 3.05 3.06 tango642 3.19 3.19 3.20 salsa208 3.47 3.47 3.48 chacha12 4.52 4.53 4.54 salsa2012 5.43 5.44 5.44 chacha20 6.13 6.14 6.14 T:cryptmtv3 6.33 6.33 6.34 T:aes128ctr 6.40 6.42 6.46 T:nlsv2 6.88 6.88 6.89 aes256ctr 6.90 6.90 6.90 T:sosemanuk 6.91 6.91 6.92 salsa20 7.04 7.04 7.04 T:trivium 7.50 7.50 7.50 xsalsa20 7.52 7.52 7.52 T:rabbit 7.60 7.60 7.60 T:snow20 9.22 9.22 9.22 T:lexv2 9.31 9.32 9.34 T:tpy6 9.85 9.94 10.12 T:aes192ctr 10.27 10.27 10.27 T:speck6496ctr 10.64 10.64 10.64 T:speck64128ctr 11.78 11.78 11.79 T:panama 12.64 12.65 12.98 T:tpy 15.10 15.16 15.17 T:aes128estream 16.64 16.64 16.64 T:speck128128ctr 16.73 16.81 16.82 T:tpypy 17.14 17.14 17.14 T:speck128192ctr 17.63 17.63 17.63 T:speck128256ctr 18.12 18.18 18.47 T:simon64128ctr 19.50 19.55 19.55 T:simon6496ctr 24.99 25.23 25.26 T:aes256estream 26.76 26.76 26.77 T:simon128128ctr 27.10 27.11 27.13 T:hc128 30.73 30.84 31.06 T:simon128256ctr 49.57 49.59 49.61 T:ocelot1 52.92 52.95 53.14 T:ocelot2 67.27 67.30 67.31 T:hc256 89.36 92.19 92.46 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 2.68 2.69 2.72 chacha8 3.49 3.49 3.50 salsa208 3.73 3.73 3.75 chacha12 4.72 4.78 4.78 tango642 4.80 4.82 4.83 salsa2012 5.86 5.86 5.87 chacha20 6.52 6.54 6.54 T:cryptmtv3 7.05 7.05 7.06 salsa20 7.24 7.24 7.25 T:aes128ctr 7.90 7.91 7.93 aes256ctr 8.15 8.15 8.15 T:trivium 8.17 8.22 8.31 T:nlsv2 8.39 8.40 8.40 T:snow20 8.51 8.51 8.51 T:rabbit 8.62 8.64 8.65 xsalsa20 9.14 9.14 9.14 T:sosemanuk 10.28 10.31 10.31 T:lexv2 10.41 10.41 10.43 T:speck6496ctr 10.80 10.80 10.80 T:speck64128ctr 14.90 14.95 14.98 T:tpy6 15.58 15.58 15.60 T:aes128estream 17.37 17.37 17.37 T:speck128128ctr 17.88 17.88 17.88 T:speck128192ctr 18.37 18.37 18.37 T:speck128256ctr 19.28 19.61 20.19 T:aes192ctr 20.32 20.41 20.49 T:panama 23.30 23.48 23.67 T:simon6496ctr 23.44 23.50 24.34 T:tpy 25.87 25.87 25.89 T:aes256estream 28.19 28.22 28.54 T:tpypy 30.52 31.00 33.78 T:simon64128ctr 39.61 39.89 40.50 T:simon128128ctr 60.31 60.51 60.51 T:ocelot1 63.97 63.97 64.05 T:ocelot2 64.47 64.47 64.52 T:hc128 65.47 66.05 67.59 T:simon128256ctr 104.53 104.97 106.63 T:amastrid 168.35 168.38 168.47 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 3.91 3.91 4.02 chacha8 5.17 5.17 5.53 chacha12 6.17 6.19 6.20 salsa208 7.41 7.47 7.69 salsa2012 7.77 7.77 7.77 chacha20 8.53 8.53 8.53 salsa20 12.20 12.20 12.20 T:speck6496ctr 12.69 12.69 12.69 T:speck64128ctr 15.17 15.20 15.30 T:aes128ctr 17.11 17.12 17.23 aes256ctr 18.62 18.62 18.66 T:snow20 20.19 20.20 20.28 T:cryptmtv3 21.03 21.03 21.03 T:rabbit 21.41 21.44 21.52 T:aes128estream 22.12 22.12 22.12 T:trivium 22.64 22.64 22.66 xsalsa20 23.91 23.95 23.95 T:lexv2 25.80 25.80 25.80 T:speck128128ctr 26.38 26.38 26.38 T:speck128192ctr 26.94 26.94 26.95 T:speck128256ctr 26.55 27.11 27.11 tango642 27.95 27.95 27.95 T:simon6496ctr 33.08 33.11 33.11 T:simon64128ctr 33.91 33.91 34.00 T:aes256estream 33.81 34.17 35.45 T:nlsv2 34.31 34.31 34.31 T:sosemanuk 52.61 52.61 52.61 T:simon128128ctr 55.53 55.53 55.61 T:simon128256ctr 86.34 86.75 87.25 T:tpy6 129.19 129.25 130.25 T:panama 131.30 134.14 140.48 T:aes192ctr 162.09 162.23 170.28 T:tpy 175.70 176.03 176.50 T:tpypy 200.25 200.52 200.83 T:ocelot1 204.38 205.42 205.47 T:ocelot2 257.09 258.64 268.92 T:amastrid 542.58 542.73 542.81 T:hc128 1461.67 1462.16 1462.41 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 40.50 40.50 40.50 T:speck6496ctr 41.50 41.50 41.50 T:speck64128ctr 41.75 41.75 42.25 chacha8 49.62 50.25 50.62 T:speck128256ctr 51.88 52.25 52.25 chacha12 52.25 52.25 54.50 T:speck128128ctr 51.75 53.50 53.50 T:speck128192ctr 70.88 70.88 70.88 chacha20 80.25 80.25 80.25 salsa20 89.00 89.50 90.12 salsa208 96.12 96.12 96.75 T:aes128estream 101.75 102.12 102.12 salsa2012 102.38 102.75 102.75 T:simon6496ctr 103.25 103.25 103.38 T:simon64128ctr 122.38 122.62 123.12 T:aes128ctr 123.38 123.38 123.62 T:aes256estream 128.88 128.88 128.88 T:rabbit 131.00 131.00 131.00 T:trivium 137.50 137.50 137.50 T:lexv2 139.75 139.75 139.75 T:cryptmtv3 140.50 140.88 141.12 aes256ctr 143.88 143.88 144.12 T:snow20 145.50 145.62 149.75 T:simon128128ctr 150.12 151.25 153.38 T:simon128256ctr 185.38 185.88 190.12 T:nlsv2 195.88 195.88 195.88 xsalsa20 197.00 201.50 201.50 tango642 267.50 267.50 267.50 T:sosemanuk 649.12 652.75 658.62 T:tpy6 1013.00 1017.25 1018.88 T:panama 1051.62 1086.00 1136.25 T:aes192ctr 1262.88 1264.38 1330.12 T:tpy 1309.00 1310.75 1316.12 T:ocelot1 1312.75 1313.12 1317.38 T:ocelot2 1344.38 1346.12 1347.62 T:tpypy 1712.38 1726.12 1741.38 T:amastrid 4332.50 4336.50 4336.50 T:hc128 11694.38 11696.12 11697.50 T:hc256