VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: aarch64; Cortex-A72 (410fd083); 2019 Broadcom BCM2711; 4 x 1500MHz; pi4b, supercop-20260330

[Page version: 20260717 22:08:46]

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 (or StQ1 starting with supercop-20260214), the median of many speed measurements (or StQ2 starting with supercop-20260214), the third quartile of many speed measurements (or StQ3 starting with supercop-20260214), and the name of the primitive. Measurements with large interquartile range (or stabilized interquartile range) 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 1.00 1.01 1.03 tango642 2.24 2.25 2.28 chacha8 2.62 2.65 2.68 T:sosemanuk 2.88? 3.05? 3.31? T:tpy 3.08 3.11 3.12 T:tpy6 3.10 3.11 3.14 T:nlsv2 3.10 3.12 3.16 salsa208 3.18 3.19 3.20 chacha12 3.55 3.59 3.69 T:panama 4.07 4.11 4.20 salsa2012 4.17 4.18 4.20 T:cryptmtv3 4.72 4.74 4.77 chacha20 4.53 4.81 4.85 T:tpypy 6.06 6.17 6.24 xsalsa20 6.12 6.17 6.21 salsa20 11.63 11.65 11.85 T:aes128estream 16.36 16.44 16.50 T:aes256estream 19.38 19.56 19.69 T:aes128ctr 22.52 22.61 22.78 T:aes192ctr 23.48 25.25 26.01 T:ocelot1 25.69 25.74 25.90 T:aes256ctr 25.23 26.25 26.50 T:ocelot2 38.45 41.18 41.65 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 1.23 1.24 1.25 tango642 2.32 2.33 2.35 chacha8 3.18 3.19 3.22 salsa208 3.26 3.26 3.27 chacha12 3.32 3.32 3.34 T:nlsv2 3.70 3.71 3.72 T:sosemanuk 3.93 3.94 3.95 T:tpy6 4.15 4.17 4.23 salsa2012 4.71 4.71 4.72 T:cryptmtv3 4.79 4.80 4.82 chacha20 4.99 5.01 5.08 T:panama 4.94 5.03 5.09 T:tpy 6.21 6.24 6.26 salsa20 6.17 6.33 6.35 T:tpypy 6.30 6.33 6.39 xsalsa20 11.78 11.79 11.92 T:aes128estream 16.54 16.59 16.61 T:aes256estream 20.27 20.32 20.40 T:aes128ctr 23.34 23.38 23.46 T:aes192ctr 25.09 26.11 26.66 T:ocelot1 26.42 26.43 26.54 T:aes256ctr 27.43 27.58 27.72 T:ocelot2 41.04 43.06 43.16 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 1.61 1.63 1.64 tango642 2.45 2.45 2.47 chacha8 3.29 3.29 3.36 salsa208 3.39 3.41 3.42 chacha12 3.71 3.73 3.75 T:nlsv2 4.25 4.28 4.33 salsa2012 4.89 4.90 4.91 chacha20 5.28 5.31 5.32 T:tpy6 5.50 5.51 5.54 T:sosemanuk 5.67 5.69 5.73 T:cryptmtv3 6.32 6.40 6.45 salsa20 6.60 6.64 6.76 xsalsa20 7.37 7.39 7.42 T:panama 8.31 8.34 8.43 T:tpy 8.68 8.77 8.89 T:tpypy 12.01 12.03 12.04 T:aes128estream 16.74 16.85 16.87 T:aes256estream 21.55 21.61 21.77 T:aes128ctr 24.54 24.58 24.66 T:aes192ctr 27.00 27.05 27.44 T:ocelot1 27.54 27.57 27.60 T:aes256ctr 29.71 29.92 32.12 T:ocelot2 45.02 45.28 47.73 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 2.62 2.64 2.65 tango642 3.34 3.39 3.40 chacha8 3.59 3.60 3.66 salsa208 4.34 4.38 4.40 chacha12 4.52 4.54 4.57 salsa2012 4.70 4.77 4.84 T:nlsv2 5.73 5.75 5.79 chacha20 6.64 6.68 6.69 salsa20 7.04 7.06 7.08 T:cryptmtv3 7.38 7.40 7.48 xsalsa20 8.68 9.02 9.08 T:tpy6 10.30 10.36 10.45 T:sosemanuk 12.48 12.51 12.69 T:aes128estream 13.62 13.66 13.71 T:panama 15.99 16.25 16.33 T:tpypy 17.36 17.49 17.51 T:aes256estream 16.68 17.51 17.71 T:tpy 24.89 25.06 25.20 T:aes128ctr 27.63 27.72 27.88 T:aes192ctr 30.60 30.64 30.71 T:aes256ctr 32.97 34.70 34.80 T:ocelot1 35.37 37.92 38.74 T:ocelot2 53.60 54.35 54.55 T:amastrid

Cycles/byte for 64 bytes 25% 50% 75% stream 7.12 7.14 7.23 salsa208 7.43 7.62 7.86 salsa2012 10.21 10.24 10.33 salsa20 11.78 11.98 12.13 chacha8 12.98 13.12 13.50 chacha20 13.08 13.29 13.44 chacha12 15.66 15.68 15.84 tango642 16.41 16.50 16.61 xsalsa20 18.16 18.60 19.08 T:nlsv2 19.20 19.45 20.04 T:aes128estream 19.91 20.10 20.35 T:cryptmtv3 24.99 25.42 25.78 T:aes256estream 55.08 55.33 55.88 T:tpy6 67.47 68.00 68.85 T:aes128ctr 67.49 68.07 68.67 T:sosemanuk 67.46 68.29 69.72 T:aes192ctr 69.02 69.42 70.01 T:aes256ctr 93.36 94.24 94.94 T:panama 104.59 105.45 105.89 T:ocelot1 108.12 108.71 117.99 T:ocelot2 112.56 113.37 115.22 T:tpypy 130.85 131.86 132.96 T:tpy 153.27 153.71 154.79 T:amastrid

Cycles/byte for 8 bytes 25% 50% 75% stream 60.77 62.39 63.68 salsa2012 62.29 62.47 62.67 salsa208 71.67 73.03 74.60 chacha8 77.18? 79.47? 85.80? T:aes128estream 82.39 83.28 84.97 chacha12 87.14 87.28 88.00 salsa20 101.46 103.40 104.78 T:aes256estream 103.46 105.09 107.85 T:nlsv2 105.98 107.19 109.30 chacha20 118.08 119.31 122.24 tango642 122.10 122.88 124.56 T:cryptmtv3 136.75 136.95 139.71 xsalsa20 409.62 414.98 424.09 T:aes256ctr 422.92 424.28 427.76 T:tpy6 427.91 433.86 447.16 T:aes192ctr 445.02 449.21 453.31 T:aes128ctr 544.09 548.14 552.32 T:sosemanuk 686.84 691.40 699.76 T:ocelot2 679.11? 702.52? 759.32? T:ocelot1 763.35 766.78 770.72 T:panama 881.59 888.45 892.74 T:tpypy 1007.81 1023.82 1044.20 T:amastrid 1024.89 1048.16 1071.09 T:tpy