VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: aarch64; Cortex-A53 (410fd034); 2018 Broadcom BCM2837B0; 4 x 1400MHz; pi3aplus, supercop-20240425

[Page version: 20240726 23:46:00]

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.

Implementation notes

Graphs: (bytes,cycles)

Cycles/byte for long messages 25% 50% 75% stream 1.56 1.56 1.57 tango642 2.57 2.57 2.57 chacha8 2.86 2.86 2.86 salsa208 3.52 3.52 3.53 chacha12 3.88 3.89 3.90 salsa2012 5.43 5.44 5.44 chacha20 6.08 6.08 6.09 salsa20 6.08 6.08 6.09 xsalsa20 6.25 6.25 6.27 T:tpy6 6.19 6.28 6.36 T:tpy 6.60 6.60 6.61 T:nlsv2 7.23 7.23 7.25 T:cryptmtv3 8.22 8.39 8.67 T:tpypy 17.19 17.22 17.26 T:aes128estream 24.61 24.65 24.80 T:aes256estream 29.90 30.02 30.79 T:aes128ctr 34.02 34.13 35.88 T:aes192ctr 38.16 38.31 39.98 T:aes256ctr 49.67 49.77 51.37 T:ocelot1 52.29 52.42 54.02 T:ocelot2 80.09 81.96 83.30 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 1.83 1.83 1.84 tango642 2.60 2.60 2.60 chacha8 2.89 2.89 2.89 salsa208 3.56 3.56 3.56 chacha12 3.93 3.93 3.93 salsa2012 5.47 5.47 5.47 chacha20 6.12 6.12 6.12 salsa20 6.21 6.21 6.21 xsalsa20 6.90 6.90 6.91 T:nlsv2 7.32 7.33 7.34 T:tpy6 8.28 8.28 8.29 T:cryptmtv3 9.02 9.04 9.10 T:tpy 10.82 10.86 11.07 T:tpypy 17.30 17.30 17.33 T:aes128estream 24.73 24.76 24.85 T:aes256estream 30.49 30.55 31.12 T:aes128ctr 34.63 34.68 35.99 T:aes192ctr 38.78 38.85 40.10 T:aes256ctr 51.94 51.99 53.18 T:ocelot1 54.60 54.65 55.84 T:ocelot2 83.17 83.75 84.52 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 2.29 2.29 2.30 tango642 2.66 2.66 2.66 chacha8 2.95 2.95 2.96 salsa208 3.61 3.61 3.62 chacha12 3.98 4.09 4.09 salsa2012 5.52 5.53 5.53 chacha20 6.17 6.17 6.18 salsa20 6.42 6.42 6.43 xsalsa20 7.63 7.64 7.65 T:nlsv2 9.11 9.11 9.12 T:tpy6 10.71 10.71 10.72 T:cryptmtv3 13.64 13.64 13.77 T:tpy 14.92 14.93 15.30 T:tpypy 17.43 17.44 17.48 T:aes128estream 24.98 24.99 25.00 T:aes256estream 31.39 31.44 31.60 T:aes128ctr 35.57 35.59 35.80 T:aes192ctr 39.71 39.73 39.92 T:aes256ctr 55.61 55.64 55.83 T:ocelot1 58.30 58.34 58.54 T:ocelot2 87.52 87.73 88.41 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 3.04 3.05 3.05 chacha8 3.09 3.09 3.11 salsa208 3.49 3.49 3.51 tango642 4.06 4.07 4.07 chacha12 4.14 4.14 4.17 salsa2012 6.11 6.12 6.13 chacha20 6.32 6.32 6.32 salsa20 6.98 6.98 6.99 xsalsa20 9.25 9.26 9.28 T:nlsv2 12.33 12.34 12.36 T:cryptmtv3 13.88 13.88 13.89 T:tpy6 17.82 17.82 17.82 T:aes128estream 25.36 25.47 25.49 T:aes256estream 25.95 25.97 26.19 T:tpy 26.03 26.06 26.26 T:tpypy 33.81 33.95 34.01 T:aes128ctr 38.11 38.15 38.22 T:aes192ctr 42.26 42.30 42.51 T:aes256ctr 65.58 65.61 65.66 T:ocelot1 68.25 68.27 68.35 T:ocelot2 100.23 100.41 101.95 T:amastrid

Cycles/byte for 64 bytes 25% 50% 75% stream 4.83 4.83 4.83 salsa208 5.86 5.86 5.91 salsa2012 6.16 6.16 6.16 chacha8 7.69 7.69 7.69 chacha12 8.03 8.03 8.14 salsa20 10.89 10.89 10.89 chacha20 14.02 14.05 14.05 xsalsa20 18.61 18.61 18.83 tango642 22.88 22.88 22.88 T:aes128estream 28.77? 30.02? 32.53? T:cryptmtv3 32.17 32.23 32.25 T:aes256estream 35.19 35.33 35.44 T:nlsv2 64.73 65.95 66.41 T:aes128ctr 70.53 71.05 72.00 T:aes192ctr 74.62 74.67 74.89 T:tpy6 74.80 75.12 75.38 T:aes256ctr 168.28 168.42 168.98 T:tpypy 183.25 183.28 183.48 T:tpy 192.77 193.19 193.56 T:ocelot1 195.39 195.67 196.05 T:ocelot2 273.19 273.42 276.11 T:amastrid

Cycles/byte for 8 bytes 25% 50% 75% stream 48.62 48.62 49.50 salsa208 53.25 53.25 53.75 chacha8 56.88 56.88 56.88 salsa2012 65.50 65.50 65.50 chacha12 75.38 75.38 77.00 salsa20 80.00 80.12 80.12 T:aes128estream 90.88 90.88 91.62 chacha20 109.25 109.25 109.25 T:aes256estream 122.38 122.62 123.25 xsalsa20 143.88 143.88 145.62 tango642 168.12 168.38 169.25 T:nlsv2 164.25? 191.00? 200.38? T:cryptmtv3 342.50 351.62 357.25 T:aes128ctr 365.62 368.88 371.88 T:aes192ctr 374.25 377.25 382.38 T:aes256ctr 551.75 553.25 553.88 T:tpy6 1201.50 1202.50 1206.75 T:ocelot1 1202.75 1204.88 1210.38 T:ocelot2 1287.00 1288.12 1289.00 T:tpypy 1422.00 1422.50 1423.62 T:tpy 1805.12 1828.62 1840.12 T:amastrid