VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: aarch64; Neoverse-N1 (413fd0c1); 2021 Ampere Altra Max M128-30; 64 x 3000MHz; cfarm425, supercop-20261004

[Page version: 20261006 19:37:01]

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 0.72 0.73 0.75 tango642 0.64? 0.86? 1.14? T:aes192ctr 0.90 0.91 0.92 T:aes128ctr 1.16 1.17 1.18 T:aes256ctr 1.44 1.45 1.45 chacha8 1.92 1.98 2.03 T:tpy 1.95 1.98 2.03 T:salsa208 2.03 2.05 2.05 chacha12 2.06 2.08 2.11 T:sosemanuk 2.25 2.30 2.36 T:tpy6 2.45 2.47 2.50 T:nlsv2 2.47 2.52 2.65 T:panama 2.55 2.62 2.67 salsa208 2.69 2.78 2.81 T:salsa2012 2.87 2.89 2.90 T:cryptmtv3 3.18 3.26 3.34 T:tpypy 3.28 3.29 3.29 chacha20 3.34 3.35 3.35 salsa2012 3.99 4.11 4.23 T:salsa20 4.65 4.69 4.77 xsalsa20 4.66 4.74 4.81 salsa20 8.81 8.85 8.89 T:aes128estream 12.49 12.56 12.78 T:aes256estream 18.12 18.85 19.27 T:ocelot1 19.13 19.19 19.26 T:ocelot2 29.69 29.85 30.18 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 0.89 0.89 0.90 tango642 0.96 0.97 0.97 T:aes128ctr 1.23 1.23 1.24 T:aes256ctr 1.48 1.48 1.48 chacha8 1.54? 1.69? 1.75? T:aes192ctr 2.08 2.08 2.09 chacha12 2.22 2.24 2.27 T:salsa208 2.59 2.60 2.61 T:sosemanuk 2.60 2.61 2.63 T:nlsv2 2.60 2.65 2.68 salsa208 2.89 2.91 2.94 T:tpy6 2.97 3.03 3.04 T:salsa2012 3.25 3.25 3.26 T:cryptmtv3 3.32 3.32 3.32 chacha20 3.35 3.37 3.46 T:panama 3.37 3.38 3.38 salsa2012 3.46 3.48 3.51 T:tpy 4.29 4.34 4.42 T:salsa20 4.74 4.77 4.81 T:tpypy 4.72 4.77 4.81 salsa20 4.78 4.80 4.85 xsalsa20 8.90 8.92 8.94 T:aes128estream 12.67 12.70 12.85 T:aes256estream 19.43 19.95 20.12 T:ocelot1 20.23 20.25 20.28 T:ocelot2 31.22 31.30 31.52 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 1.06? 1.07? 1.18? T:aes128ctr 1.16 1.17 1.20 tango642 1.35 1.36 1.37 T:aes256ctr 1.53 1.53 1.57 chacha8 2.14 2.14 2.15 chacha12 2.66 2.69 2.72 T:salsa208 2.68 2.71 2.76 salsa208 2.91 2.92 2.93 T:nlsv2 2.68? 3.10? 3.31? T:aes192ctr 3.37 3.37 3.38 chacha20 3.43 3.44 3.45 salsa2012 3.40 3.46 3.51 T:salsa2012 3.51 3.52 3.61 T:sosemanuk 3.96 3.97 3.98 T:cryptmtv3 3.94 3.98 4.05 T:tpy6 4.67 4.74 4.82 T:salsa20 4.76 4.78 4.84 T:panama 4.78 4.79 4.89 salsa20 4.96 4.98 5.01 xsalsa20 5.91 5.94 5.99 T:tpy 7.22 7.36 7.45 T:tpypy 9.01 9.05 9.09 T:aes128estream 12.87 12.92 13.07 T:aes256estream 21.31 21.74 21.83 T:ocelot1 22.06 22.14 22.26 T:ocelot2 33.49 33.66 33.82 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 1.36 1.37 1.39 T:aes128ctr 1.77 1.77 1.80 T:aes256ctr 1.88 1.91 1.93 tango642 1.91 1.93 1.93 chacha8 2.59 2.59 2.60 chacha12 2.78 2.84 2.88 salsa208 3.55 3.56 3.57 salsa2012 3.64 3.68 3.71 T:nlsv2 3.76 3.79 3.86 T:salsa208 3.92 3.93 3.94 chacha20 4.47 4.52 4.58 T:salsa2012 4.68 4.74 4.87 T:cryptmtv3 4.91 4.94 5.02 salsa20 5.42 5.47 5.51 xsalsa20 5.66 5.82 6.00 T:salsa20 5.91 5.94 6.14 T:sosemanuk 5.68? 6.75? 6.91? T:aes192ctr 6.77 6.89 7.00 T:tpy6 8.52 8.55 8.63 T:panama 9.36 9.42 9.46 T:aes128estream 12.78 12.91 13.07 T:tpy 13.40 13.49 13.59 T:aes256estream 13.95 14.12 14.36 T:tpypy 26.21 26.61 26.77 T:ocelot1 26.68 26.76 26.92 T:ocelot2 38.31 39.87 39.98 T:amastrid

Cycles/byte for 64 bytes 25% 50% 75% stream 4.49 4.57 4.75 salsa208 4.94 5.04 5.17 T:aes128ctr 5.23 5.31 5.39 salsa2012 5.52 5.57 5.68 chacha8 6.51 6.58 6.69 T:aes256ctr 6.38 6.60 6.70 chacha12 6.69 6.79 6.85 salsa20 8.74 8.75 8.82 chacha20 10.50 10.62 11.01 T:cryptmtv3 10.98 11.06 11.40 tango642 11.18 11.24 11.43 xsalsa20 13.34 13.46 13.62 T:aes128estream 15.12 15.37 15.54 T:nlsv2 18.08 18.31 19.88 T:salsa208 18.02 18.76 19.44 T:salsa2012 18.34? 19.67? 22.81? T:salsa20 20.22 20.35 20.70 T:aes256estream 34.67 34.80 35.12 T:sosemanuk 43.29 44.07 44.66 T:tpy6 46.89? 54.68? 60.71? T:aes192ctr 56.39 56.78 57.96 T:panama 87.48 88.39 89.11 T:ocelot1 88.33 88.96 90.43 T:ocelot2 98.66 99.25 100.99 T:tpy 99.80 100.36 101.59 T:tpypy 120.06 121.30 124.33 T:amastrid

Cycles/byte for 8 bytes 25% 50% 75% stream 38.31 38.65 39.84 salsa208 40.12 40.24 40.85 T:aes128ctr 43.81 43.91 44.42 chacha8 45.42 45.80 46.26 salsa2012 52.02 52.52 53.18 T:aes256ctr 52.27 52.95 53.48 T:aes128estream 52.72 52.95 53.26 chacha12 55.62 56.06 57.08 salsa20 60.84? 62.75? 67.85? T:cryptmtv3 69.41 70.28 71.22 chacha20 78.02 78.68 82.24 T:nlsv2 85.42 86.09 89.76 tango642 86.09 87.10 89.84 T:aes256estream 90.82 91.16 91.79 xsalsa20 148.45 150.17 158.08 T:salsa208 146.45? 151.20? 167.42? T:salsa20 154.55? 156.65? 172.35? T:salsa2012 277.20 278.44 282.21 T:sosemanuk 331.46 334.58 342.69 T:tpy6 350.97? 431.44? 459.20? T:aes192ctr 443.58 447.34 454.22 T:panama 567.12 572.83 582.19 T:ocelot1 573.96 577.76 582.95 T:ocelot2 774.43 777.97 785.97 T:tpy 777.67 791.08 806.39 T:tpypy 807.47 821.29 844.07 T:amastrid