VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; Crestmont (a06a4-20); 2023 Intel Core Ultra 5 125H, E cores; 8 x 700MHz; meteor,little, supercop-20260330

[Page version: 20260413 04:19:53]

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 0.47 0.47 0.48 T:aes128ctr 0.57 0.57 0.57 aes256ctr 0.69 0.70 0.71 tango642 0.65? 0.73? 0.81? T:aes192ctr 0.91 0.92 0.93 chacha8 1.11 1.12 1.14 salsa208 1.20? 1.22? 1.54? T:hc128 1.26 1.28 1.30 chacha12 1.29? 1.36? 1.44? T:tpy 1.58 1.59 1.62 salsa2012 1.44? 1.66? 1.77? T:hc256 1.68 1.76 1.82 T:tpy6 1.71? 1.86? 1.95? T:nlsv2 1.97 1.98 1.98 T:speck6496ctr 1.96 1.99 2.01 chacha20 1.93 1.99 2.10 T:tpypy 1.99 2.01 2.03 T:snow20 2.04 2.04 2.05 T:speck64128ctr 2.16 2.17 2.18 T:cryptmtv3 2.24 2.29 2.30 T:sosemanuk 2.40 2.41 2.42 T:speck128128ctr 2.47 2.48 2.49 T:speck128192ctr 2.54 2.55 2.56 T:speck128256ctr 2.53 2.55 2.56 salsa20 2.54 2.56 2.58 xsalsa20 2.76 2.77 2.78 T:simon6496ctr 2.67 2.78 2.82 T:rabbit 2.86 2.88 2.89 T:simon64128ctr 3.57 3.59 3.60 T:lexv2 3.60 3.63 3.79 T:panama 7.38 7.40 7.42 T:aes128estream 7.51 7.54 7.56 T:simon128128ctr 8.20 8.24 8.75 T:simon128256ctr 10.86 11.06 11.09 T:aes256estream 23.27? 23.87? 26.33? T:ocelot1 24.72 24.83 24.96 T:trivium 26.17 26.41 28.13 T:ocelot2 40.63 42.75 43.34 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 0.50 0.50 0.50 T:aes128ctr 0.59 0.59 0.59 aes256ctr 0.84 0.85 0.85 tango642 0.92 0.92 0.93 chacha8 1.13 1.14 1.14 salsa208 1.28 1.29 1.30 chacha12 1.41 1.43 1.48 T:aes192ctr 1.60 1.60 1.62 salsa2012 1.85 1.95 1.99 T:nlsv2 1.98 2.00 2.01 chacha20 2.00 2.01 2.01 T:speck6496ctr 2.07 2.08 2.08 T:speck64128ctr 2.06 2.08 2.09 T:snow20 2.23 2.27 2.30 T:tpy6 2.44 2.45 2.46 T:speck128128ctr 2.47 2.50 2.51 T:sosemanuk 2.52 2.52 2.53 T:speck128192ctr 2.56 2.57 2.57 salsa20 2.59 2.60 2.60 T:speck128256ctr 2.61 2.64 2.66 T:tpy 2.66 2.66 2.67 xsalsa20 2.67 2.68 2.68 T:cryptmtv3 2.78 2.85 2.86 T:rabbit 2.89 2.89 2.90 T:simon6496ctr 3.06 3.06 3.07 T:simon64128ctr 3.06 3.08 3.10 T:tpypy 3.70 3.70 3.71 T:lexv2 3.85 3.86 3.86 T:hc128 4.70 4.71 4.83 T:panama 7.44 7.45 7.46 T:aes128estream 7.64 7.69 7.75 T:hc256 8.17 8.18 8.20 T:simon128128ctr 9.17 9.18 9.56 T:simon128256ctr 10.96 11.10 11.12 T:aes256estream 25.42 25.64 27.36 T:ocelot1 25.65 25.72 25.79 T:trivium 27.81 27.92 29.14 T:ocelot2 43.76 45.00 45.25 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 0.53 0.53 0.54 T:aes128ctr 0.61 0.61 0.62 aes256ctr 0.93 0.94 0.95 chacha8 1.07 1.07 1.08 tango642 1.15 1.16 1.18 salsa208 1.29 1.30 1.31 chacha12 1.61 1.62 1.64 salsa2012 2.00 2.01 2.02 chacha20 2.05 2.05 2.05 T:speck6496ctr 2.12 2.13 2.13 T:speck64128ctr 2.02 2.13 2.22 T:nlsv2 2.14 2.19 2.22 T:snow20 2.52 2.52 2.53 T:speck128128ctr 2.56 2.59 2.60 salsa20 2.57 2.60 2.70 T:aes192ctr 2.60 2.60 2.61 T:speck128192ctr 2.68 2.68 2.68 T:speck128256ctr 2.82 2.84 2.87 xsalsa20 2.91 2.92 2.93 T:sosemanuk 2.87 2.93 2.95 T:rabbit 3.09 3.10 3.12 T:simon6496ctr 3.11 3.17 3.37 T:tpy6 3.38 3.41 3.45 T:simon64128ctr 3.90 3.91 3.93 T:lexv2 3.95 3.95 3.96 T:cryptmtv3 4.71 4.77 4.82 T:tpy 4.76 4.87 5.07 T:tpypy 6.48 6.50 6.53 T:panama 7.51 7.53 7.55 T:aes128estream 8.32 8.42 8.46 T:hc128 9.23 9.25 9.27 T:simon128128ctr 10.74 10.76 10.80 T:simon128256ctr 11.09 11.10 11.13 T:aes256estream 17.82 18.11 18.28 T:hc256 27.22 27.30 27.39 T:trivium 27.98 28.13 29.94 T:ocelot1 30.15 30.29 30.47 T:ocelot2 47.26 48.23 48.84 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 0.61? 0.65? 0.72? T:aes128ctr 0.86 0.86 0.87 aes256ctr 1.05 1.06 1.07 chacha8 1.30 1.31 1.34 salsa208 1.47 1.49 1.51 chacha12 1.75 1.77 1.79 tango642 1.84 1.85 1.89 salsa2012 2.24 2.25 2.26 T:speck6496ctr 2.30 2.31 2.32 T:speck64128ctr 2.31 2.33 2.34 chacha20 2.39 2.41 2.44 T:snow20 2.77 2.78 2.80 T:speck128128ctr 2.71 2.85 2.89 T:nlsv2 2.85 2.86 2.86 T:speck128192ctr 2.95 2.96 2.96 T:speck128256ctr 2.95 2.98 3.01 salsa20 3.20 3.22 3.32 T:rabbit 3.62 3.64 3.67 xsalsa20 4.06 4.08 4.10 T:sosemanuk 4.22 4.23 4.25 T:simon6496ctr 4.39 4.40 4.43 T:lexv2 4.61 4.62 4.64 T:cryptmtv3 4.82 4.84 4.88 T:simon64128ctr 5.45 5.51 5.59 T:tpy6 5.61 5.84 5.99 T:aes192ctr 7.71 7.74 7.77 T:aes128estream 10.14 10.22 10.41 T:tpy 9.71 10.44 10.57 T:tpypy 11.28 11.38 11.77 T:panama 11.52 11.54 11.58 T:aes256estream 14.69 14.73 14.81 T:simon128128ctr 16.15 16.22 16.31 T:simon128256ctr 18.39? 20.41? 20.46? T:hc128 31.34 31.36 31.41 T:trivium 34.93 35.44 37.29 T:ocelot1 37.49 37.85 38.30 T:ocelot2 44.24 44.59 45.46 T:hc256 57.10 57.34 57.73 T:amastrid

Cycles/byte for 64 bytes 25% 50% 75% stream 1.88? 2.12? 2.15? T:aes128ctr 2.34 2.39 2.43 chacha8 2.91 2.97 3.01 salsa208 3.30 3.30 3.41 aes256ctr 3.25 3.32 3.37 chacha12 3.79 3.91 4.01 T:speck6496ctr 3.82 3.95 4.05 T:speck64128ctr 4.06 4.07 4.11 salsa2012 5.09 5.17 5.24 chacha20 5.71 5.81 5.97 T:speck128128ctr 5.78 5.85 5.92 T:snow20 6.07 6.08 6.13 T:speck128192ctr 6.36 6.41 6.41 salsa20 6.36 6.43 6.47 T:speck128256ctr 6.99 7.09 7.20 T:rabbit 8.03 8.12 8.25 T:simon6496ctr 9.02 9.16 9.32 T:simon64128ctr 10.44 10.55 10.67 T:aes128estream 10.53 10.70 10.99 tango642 10.66 10.99 11.16 T:lexv2 11.58 11.75 11.80 T:cryptmtv3 12.01 12.08 12.21 xsalsa20 12.41? 14.09? 14.93? T:nlsv2 16.01 16.12 16.20 T:sosemanuk 17.41 17.60 17.73 T:aes256estream 24.12 24.64 25.13 T:simon128128ctr 28.76 29.34 29.90 T:simon128256ctr 34.44 34.95 35.56 T:tpy6 44.66 46.01 48.88 T:aes192ctr 73.47 74.09 76.00 T:panama 76.38? 76.95? 85.38? T:tpypy 80.68 80.88 81.28 T:tpy 82.23 82.45 82.65 T:trivium 127.43 128.92 130.92 T:ocelot1 124.86 130.26 133.09 T:ocelot2 152.46? 154.22? 171.41? T:hc128 167.70 169.35 172.75 T:amastrid 387.57 389.90 392.01 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 13.44? 13.78? 15.33? T:aes128ctr 16.59 16.80 17.21 T:speck6496ctr 16.64 17.14 17.78 T:speck64128ctr 20.59 20.88 21.20 chacha8 22.22 22.66 23.09 T:speck128192ctr 23.12 23.79 25.57 T:speck128256ctr 23.56? 24.02? 26.42? T:speck128128ctr 25.92 26.24 27.54 aes256ctr 27.38 27.80 28.57 salsa208 29.05 29.80 31.03 chacha12 37.25 38.00 38.72 T:simon6496ctr 41.66 42.30 43.25 T:rabbit 42.83 43.29 43.74 chacha20 43.79 44.07 44.39 T:aes128estream 44.55 45.14 46.35 T:simon64128ctr 45.22 46.14 48.83 T:snow20 56.09 57.17 57.71 salsa2012 63.60 65.39 66.41 salsa20 63.44 67.23 68.66 T:lexv2 73.26 73.70 74.21 T:cryptmtv3 75.35 76.23 77.29 T:aes256estream 66.30? 76.93? 77.81? T:nlsv2 80.65 81.35 82.64 tango642 107.86 109.02 111.44 T:simon128128ctr 109.15 109.77 111.36 xsalsa20 128.24 128.93 130.71 T:sosemanuk 134.43 137.48 143.44 T:simon128256ctr 268.86 271.97 275.12 T:tpy6 352.90 365.25 380.07 T:aes192ctr 475.45 481.33 484.60 T:trivium 564.99 570.31 574.62 T:panama 580.42? 584.61? 668.10? T:tpypy 575.65 632.39 636.95 T:tpy 796.16 814.20 831.69 T:ocelot1 862.56 889.86 925.79 T:ocelot2 1153.84 1164.15 1180.05 T:amastrid 1205.25? 1236.17? 1373.53? T:hc128 3058.50 3075.68 3085.57 T:hc256