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; pi3bplus, supercop-20231107

[Page version: 20240828 00:45:52]

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 1.95 1.95 1.99 tango642 2.56 2.60 2.60 chacha8 2.85 2.85 2.93 salsa208 3.50 3.54 3.62 chacha12 3.87 3.95 4.11 salsa2012 5.45? 5.45? 6.51? chacha20 6.06? 6.14? 7.16? salsa20 6.23? 6.35? 7.36? T:tpy6 6.31? 6.35? 7.36? xsalsa20 6.59? 6.71? 7.65? T:nlsv2 5.98? 7.24? 7.41? T:tpy 7.24? 7.65? 8.34? T:cryptmtv3 7.49? 9.40? 9.72? T:tpypy 17.25 18.27 18.96 T:aes128estream 24.58 26.37 26.73 T:aes256estream 30.88 31.41 33.16 T:aes128ctr 34.99 35.28 37.43 T:aes192ctr 38.90 39.96 41.59 T:aes256ctr 50.90 52.21 53.18 T:ocelot1 53.87 55.05 55.91 T:ocelot2 83.01 85.04 87.00 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 2.29 2.29 2.29 tango642 2.62 2.66 2.66 chacha8 2.90 2.90 2.93 salsa208 3.57 3.60 3.63 chacha12 3.94 3.97 4.09 salsa2012 5.49? 5.49? 6.29? chacha20 6.13? 6.16? 6.93? salsa20 6.44? 6.44? 7.17? xsalsa20 6.93 6.99 7.69 T:nlsv2 7.35 7.42 8.15 T:tpy6 8.33 8.61 9.12 T:cryptmtv3 9.06 9.77 9.89 T:tpy 10.93 11.66 11.87 T:tpypy 18.04 18.13 18.62 T:aes128estream 25.54 26.09 26.34 T:aes256estream 32.01 32.14 32.93 T:aes128ctr 36.16 36.32 37.17 T:aes192ctr 40.44 40.89 41.38 T:aes256ctr 54.17 54.63 55.30 T:ocelot1 56.95 57.37 58.01 T:ocelot2 86.70 87.46 88.26 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 2.36 2.36 2.44 tango642 2.60 2.60 2.64 chacha8 3.58 3.58 3.58 chacha12 4.15 4.15 4.15 salsa208 5.13 5.21 5.21 salsa2012 5.45 5.45 5.53 chacha20 7.32 7.41 7.41 salsa20 7.65 7.65 7.65 xsalsa20 7.81 7.81 8.14 T:nlsv2 8.22 8.22 8.30 T:tpy6 10.74 10.74 10.99 T:cryptmtv3 12.29? 12.37? 14.24? T:tpy 15.71? 15.87? 17.66? T:tpypy 17.74 17.82 19.61 T:aes128estream 24.94 26.69 26.94 T:aes256estream 39.63 39.88 41.22 T:aes128ctr 43.99 44.35 45.49 T:aes192ctr 48.34 48.67 49.89 T:aes256ctr 56.07 56.80 57.94 T:ocelot1 58.19 58.92 60.06 T:ocelot2 86.10 87.24 88.54 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 3.69 3.69 3.69 tango642 3.69 3.69 3.91 chacha8 4.34 4.34 4.34 salsa208 4.77 4.77 4.77 chacha12 5.43 5.43 5.43 salsa2012 6.73 6.94 6.94 chacha20 7.38 7.60 7.60 salsa20 8.25 8.25 8.46 xsalsa20 9.33 9.33 9.33 T:nlsv2 12.59 12.80 12.80 T:cryptmtv3 13.02 13.02 13.02 T:tpy6 18.23 18.23 18.23 T:aes128estream 24.09 24.09 24.31 T:tpy 25.39 25.61 25.82 T:aes256estream 26.91 26.91 27.56 T:tpypy 48.83? 52.08? 57.29? T:aes128ctr 52.95? 55.34? 59.46? T:aes192ctr 57.51? 62.28? 64.45? T:aes256ctr 64.89 69.44 70.31 T:ocelot1 67.06 72.05 73.78 T:ocelot2 101.56 102.21 104.82 T:amastrid

Cycles/byte for 64 bytes 25% 50% 75% stream 5.86 5.86 5.86 salsa208 5.86? 7.81? 7.81? salsa2012 9.77 9.77 9.77 salsa20 11.72? 13.67? 13.67? chacha8 13.67? 13.67? 15.62? chacha12 15.62? 15.62? 17.58? xsalsa20 17.58 17.58 17.58 chacha20 19.53 19.53 21.48 tango642 23.44 23.44 25.39 T:aes128estream 33.20 33.20 33.20 T:aes256estream 33.20 33.20 33.20 T:nlsv2 33.20 35.16 35.16 T:cryptmtv3 74.22 74.22 74.22 T:tpy6 169.92 169.92 171.88 T:tpypy 173.83 175.78 175.78 T:tpy 181.64 181.64 197.27 T:aes128ctr 187.50 189.45 199.22 T:aes192ctr 189.45 193.36 205.08 T:aes256ctr 199.22 201.17 201.17 T:ocelot1 203.12 203.12 203.12 T:ocelot2 265.62? 269.53? 308.59? T:amastrid

Cycles/byte for 8 bytes 25% 50% 75% stream 46.88? 62.50? 62.50? salsa208 62.50 62.50 62.50 chacha8 62.50? 62.50? 78.12? salsa2012 62.50? 78.12? 78.12? chacha12 78.12? 78.12? 93.75? salsa20 93.75? 93.75? 109.38? chacha20 93.75 93.75 93.75 T:aes128estream 109.38? 125.00? 125.00? T:aes256estream 140.62 140.62 140.62 xsalsa20 140.62? 156.25? 156.25? T:nlsv2 156.25 156.25 156.25 tango642 203.12? 218.75? 234.38? T:cryptmtv3 546.88 546.88 562.50 T:tpy6 1265.62 1281.25 1281.25 T:ocelot1 1265.62 1281.25 1281.25 T:ocelot2 1265.62 1281.25 1375.00 T:aes128ctr 1281.25 1296.88 1406.25 T:aes192ctr 1296.88 1296.88 1312.50 T:tpypy 1296.88 1312.50 1421.88 T:aes256ctr 1359.38 1359.38 1359.38 T:tpy 1750.00? 1765.62? 1968.75? T:amastrid