VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: aarch64; Cortex-A76 (414fd0b1); 2023 Broadcom BCM2712; 4 x 1500MHz; pi5, supercop-20251222

[Page version: 20260221 06:45:09]

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 0.70 0.71 0.72 tango642 0.89 0.89 0.90 T:aes128ctr 0.88 0.90 0.91 T:aes192ctr 1.17 1.17 1.17 T:aes256ctr 1.44 1.45 1.45 chacha8 1.88 1.95 2.00 T:tpy 2.06 2.06 2.07 chacha12 2.08 2.11 2.16 T:sosemanuk 2.11 2.19 2.23 T:tpy6 2.28 2.28 2.29 salsa208 2.44 2.45 2.47 T:nlsv2 2.50 2.52 2.55 T:panama 3.02 3.02 3.03 salsa2012 3.04 3.06 3.08 T:cryptmtv3 3.13 3.17 3.21 T:tpypy 3.24 3.25 3.26 chacha20 4.47 4.50 4.53 xsalsa20 4.52 4.53 4.55 salsa20 8.55 8.61 8.80 T:aes128estream 12.20 12.24 12.39 T:aes256estream 19.37 19.56 19.94 T:ocelot1 19.59 19.70 19.79 T:ocelot2 26.71 27.87 28.35 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 0.85 0.85 0.86 tango642 0.94 0.94 0.94 T:aes128ctr 1.16 1.17 1.18 T:aes192ctr 1.21 1.21 1.22 T:aes256ctr 1.46 1.46 1.46 chacha8 2.07 2.07 2.08 chacha12 2.30 2.30 2.30 salsa208 2.54 2.55 2.58 T:sosemanuk 2.56 2.56 2.57 T:nlsv2 2.78 2.82 2.84 T:tpy6 3.04 3.04 3.04 salsa2012 3.26 3.27 3.27 chacha20 3.35 3.36 3.37 T:cryptmtv3 3.38 3.41 3.44 T:tpy 3.41 3.42 3.44 T:panama 4.50 4.52 4.54 T:tpypy 4.54 4.55 4.56 salsa20 4.57 4.59 4.61 xsalsa20 8.66 8.67 8.81 T:aes128estream 12.31 12.32 12.43 T:aes256estream 20.56 20.64 20.90 T:ocelot1 20.69 20.72 20.76 T:ocelot2 28.45 29.28 29.59 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 1.01 1.01 1.03 T:aes128ctr 1.08 1.08 1.09 tango642 1.29 1.29 1.30 T:aes256ctr 1.48 1.48 1.49 chacha8 1.61 1.65 1.66 T:aes192ctr 2.10 2.10 2.11 chacha12 2.32 2.33 2.33 salsa208 2.81 2.83 2.84 T:nlsv2 3.06 3.07 3.07 salsa2012 3.30 3.30 3.30 chacha20 3.31 3.33 3.35 T:sosemanuk 3.83 3.86 3.90 T:tpy6 3.98 4.00 4.02 T:cryptmtv3 4.59 4.59 4.60 salsa20 4.70 4.72 4.74 xsalsa20 4.92 4.93 4.95 T:panama 5.78 5.80 5.86 T:tpy 6.78 6.81 6.85 T:tpypy 8.74 8.78 8.90 T:aes128estream 12.42 12.47 12.53 T:aes256estream 22.43 22.49 22.68 T:ocelot2 22.44 22.50 22.60 T:ocelot1 31.40 31.73 31.89 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 1.29 1.30 1.32 T:aes128ctr 1.62 1.64 1.66 T:aes256ctr 1.69 1.70 1.72 tango642 1.79 1.80 1.82 chacha8 2.36 2.38 2.40 salsa208 2.47 2.48 2.50 chacha12 2.78 2.84 2.89 T:aes192ctr 3.09 3.11 3.13 salsa2012 3.42 3.44 3.45 T:nlsv2 4.06 4.08 4.10 chacha20 4.54 4.56 4.59 T:cryptmtv3 4.59 4.60 4.63 salsa20 5.07 5.08 5.10 xsalsa20 5.39 5.45 5.49 T:sosemanuk 6.59 6.68 6.76 T:tpy6 8.91 8.92 8.97 T:panama 8.95 8.99 9.09 T:aes128estream 12.32 12.39 12.43 T:tpy 12.66 12.72 12.84 T:tpypy 12.72 12.76 12.86 T:aes256estream 27.02 27.11 27.23 T:ocelot2 27.13 27.25 27.42 T:ocelot1 37.13 37.30 37.60 T:amastrid

Cycles/byte for 64 bytes 25% 50% 75% stream 2.93 3.03 3.12 salsa208 3.69 3.74 3.82 salsa2012 4.06 4.10 4.31 T:aes128ctr 4.29 4.37 4.57 chacha8 5.06 5.26 5.38 T:aes256ctr 5.23 5.50 5.64 salsa20 5.57 5.64 5.81 chacha12 9.34 9.41 9.50 xsalsa20 9.42 9.50 9.74 T:cryptmtv3 9.57 9.66 9.77 tango642 10.21 10.39 10.62 chacha20 11.72 11.78 11.91 T:aes128estream 13.10 13.20 13.30 T:nlsv2 16.86 16.98 17.14 T:aes256estream 18.01 18.41 18.77 T:aes192ctr 29.51 29.65 29.82 T:sosemanuk 41.53 41.90 42.87 T:tpy6 58.65 58.76 58.87 T:panama 85.69 86.40 87.74 T:ocelot2 87.59 88.16 89.59 T:ocelot1 89.58 90.04 90.61 T:tpypy 94.83 95.47 96.44 T:tpy 106.44 107.37 108.69 T:amastrid

Cycles/byte for 8 bytes 25% 50% 75% stream 26.40 26.55 27.16 salsa208 31.82 32.20 33.14 T:aes128ctr 32.09 32.52 33.79 salsa2012 33.09 33.51 33.89 chacha8 38.85 39.33 40.02 T:aes256ctr 40.26 40.75 41.46 T:aes128estream 40.38 40.95 41.68 salsa20 43.56 44.01 44.79 chacha12 51.03 51.83 53.60 T:cryptmtv3 61.20 61.73 62.58 T:nlsv2 63.52 64.79 66.59 T:aes256estream 68.34 69.05 70.68 chacha20 74.10 74.55 75.11 xsalsa20 73.85 74.86 77.87 tango642 141.90 145.77 148.03 T:aes192ctr 239.95 240.80 241.90 T:sosemanuk 318.62 320.93 328.92 T:tpy6 470.44 471.01 471.30 T:panama 563.59 567.24 575.19 T:ocelot1 550.33 573.85 581.75 T:ocelot2 692.19 696.20 699.24 T:tpypy 721.47 732.68 738.19 T:amastrid 748.47 754.26 759.95 T:tpy