VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; Bobcat (500f10); 2011 AMD G-T56N; 2 x 1650MHz; h8bobcat, supercop-20241022

[Page version: 20250808 02:31:56]

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.

Test results

Graphs: old (bytes,cycles)

Cycles/byte for long messages 25% 50% 75% stream -3.11? -3.11? 13.99? T:hc128 2.75? 2.76? 8.13? T:tpy6 3.41 3.42 3.44 tango642 5.57? 5.57? 12.68? chacha12 4.50? 5.67? 10.24? salsa208 -11.18? 5.87? 26.34? T:hc256 7.38 7.39 7.39 T:trivium 6.27? 7.86? 7.89? salsa2012 7.81 8.00 8.06 T:tpy 4.05? 8.20? 9.25? chacha8 8.54 8.75 8.78 T:tpypy 3.32? 8.76? 10.96? T:sosemanuk 9.20 9.21 9.27 T:nlsv2 8.42? 10.67? 19.31? T:speck6496ctr 10.71? 10.71? 13.52? T:speck128128ctr 10.76 10.76 10.78 chacha20 8.73? 11.04? 11.07? T:speck64128ctr 11.49? 11.50? 13.96? T:cryptmtv3 11.55 11.67 11.75 T:panama 9.84? 12.33? 22.26? salsa20 12.34 12.34 12.35 xsalsa20 5.32? 12.46? 12.49? T:snow20 6.36? 13.07? 13.08? T:rabbit 11.03? 14.08? 25.17? T:speck128192ctr 11.35? 14.34? 25.91? T:speck128256ctr 7.29? 15.07? 17.21? T:lexv2 14.35? 18.11? 32.69? T:aes128estream 15.60? 20.84? 38.60? T:simon64128ctr 24.01? 24.28? 60.42? T:aes192ctr 22.19? 29.64? 29.67? T:simon128128ctr 23.63? 29.74? 29.74? T:aes256estream 15.27? 31.99? 36.69? T:simon6496ctr 28.43? 37.87? 70.01? T:aes256ctr 31.64? 39.13? 40.99? T:ocelot1 20.21? 43.83? 50.85? T:aes128ctr 24.66? 53.71? 62.59? T:simon128256ctr 62.18? 85.77? 153.93? T:amastrid 53.22? 96.82? 97.12? T:ocelot2

Cycles/byte for 4096 bytes 25% 50% 75% stream 4.05 4.05 4.06 tango642 5.73? 5.73? 9.16? salsa208 6.66? 6.67? 10.65? T:tpy6 7.09? 7.09? 11.34? chacha12 7.71 7.71 7.71 T:trivium 7.95 7.95 7.95 salsa2012 5.20? 8.30? 8.30? chacha8 9.81 9.82 9.86 T:nlsv2 6.72? 10.73? 10.83? T:sosemanuk 10.81? 10.82? 17.30? T:speck6496ctr 10.85 10.85 10.85 chacha20 11.22 11.22 11.22 T:speck64128ctr 7.10? 11.30? 11.32? T:snow20 12.07 12.07 12.08 T:tpypy 12.27? 12.28? 19.63? T:hc128 12.41? 12.41? 19.84? salsa20 12.43 12.45 12.49 T:tpy 12.60 12.60 12.60 xsalsa20 8.41? 13.44? 13.44? T:rabbit 13.53 13.53 13.54 T:cryptmtv3 13.67 13.67 13.69 T:speck128128ctr 14.08? 14.23? 22.52? T:speck128192ctr 14.49? 14.50? 23.17? T:speck128256ctr 15.31 15.33 15.39 T:panama 9.75? 15.58? 15.58? T:lexv2 18.26? 18.28? 29.21? T:aes128estream 22.20? 22.21? 35.52? T:simon64128ctr 25.60? 25.65? 41.00? T:hc256 29.95 29.96 29.96 T:aes256estream 31.83 31.84 31.85 T:simon128128ctr 20.92? 33.45? 33.45? T:simon6496ctr 35.03? 35.14? 55.95? T:aes192ctr 40.56? 40.65? 64.69? T:aes256ctr 29.89? 47.58? 47.62? T:aes128ctr 49.49 54.34 54.45 T:ocelot1 36.31? 58.08? 58.10? T:simon128256ctr 85.43? 88.38? 138.86? T:amastrid 56.39? 88.75? 88.79? T:ocelot2

Cycles/byte for 1536 bytes 25% 50% 75% stream 5.10 5.11 5.13 tango642 5.83? 5.84? 9.30? salsa208 8.05? 8.06? 12.87? salsa2012 8.24 8.24 8.24 T:trivium 5.32? 8.47? 8.48? chacha8 10.97 10.98 10.99 chacha20 11.05? 11.10? 17.65? T:speck6496ctr 11.21 11.21 11.23 T:nlsv2 11.47? 11.52? 18.33? T:speck64128ctr 7.24? 11.53? 11.53? chacha12 7.43? 11.89? 11.97? T:snow20 12.51? 12.51? 19.99? salsa20 13.02 13.02 13.05 xsalsa20 14.05 14.06 14.06 T:rabbit 8.93? 14.22? 14.43? T:sosemanuk 14.44? 14.48? 22.91? T:speck128192ctr 14.75? 14.78? 23.60? T:speck128256ctr 14.97 14.99 15.03 T:tpy6 10.31? 16.45? 16.45? T:lexv2 16.10 17.58 17.62 T:tpypy 11.24? 17.98? 17.98? T:cryptmtv3 18.56? 18.57? 29.67? T:aes128estream 19.77 19.85 20.01 T:tpy 21.41 21.42 21.60 T:panama 13.95? 22.25? 22.30? T:speck128128ctr 24.47? 24.48? 39.13? T:simon64128ctr 25.74? 25.75? 41.17? T:hc128 30.32? 30.37? 48.54? T:aes256estream 35.39? 35.42? 56.20? T:simon128128ctr 22.50? 35.88? 35.91? T:simon6496ctr 45.04? 45.16? 71.40? T:aes256ctr 33.83? 53.73? 53.98? T:aes128ctr 58.59? 58.61? 93.64? T:hc256 61.28 61.32 61.43 T:ocelot2 39.20? 62.50? 62.56? T:aes192ctr 40.92? 65.39? 65.47? T:simon128256ctr 94.34? 94.58? 147.45? T:amastrid 87.14 95.06 95.86 T:ocelot1

Cycles/byte for 576 bytes 25% 50% 75% stream 5.66? 5.77? 8.93? chacha8 6.09? 6.10? 9.71? salsa208 5.04? 7.81? 7.93? tango642 8.32? 8.32? 13.28? salsa2012 8.50? 8.50? 13.54? T:snow20 9.66 9.66 9.68 T:trivium 11.51 11.51 11.55 chacha20 11.72? 11.89? 18.69? T:speck6496ctr 7.68? 12.17? 12.17? chacha12 12.20? 12.34? 19.41? T:speck64128ctr 12.77? 12.83? 20.39? salsa20 14.00 14.03 14.05 T:nlsv2 14.13 14.14 14.14 xsalsa20 15.12? 15.21? 24.01? T:speck128192ctr 15.49? 15.53? 24.72? T:speck128256ctr 15.68 15.69 15.71 T:rabbit 11.77? 18.71? 18.72? T:lexv2 13.57? 21.66? 21.70? T:cryptmtv3 14.65? 23.33? 23.34? T:speck128128ctr 14.78? 23.67? 24.13? T:sosemanuk 26.21 26.29 26.51 T:tpy6 19.27? 30.77? 31.11? T:aes128estream 31.31? 31.32? 50.03? T:aes256estream 31.56 31.73 32.28 T:tpypy 37.89 37.96 38.62 T:panama 39.91 40.11 40.28 T:tpy 41.06? 41.10? 65.56? T:simon64128ctr 28.81? 45.83? 46.00? T:simon6496ctr 56.74? 56.80? 91.14? T:simon128128ctr 61.07? 62.00? 96.39? T:aes256ctr 72.45 73.07 73.33 T:ocelot2 48.68? 75.10? 75.28? T:aes128ctr 53.67? 85.78? 86.16? T:aes192ctr 59.17? 93.89? 94.30? T:simon128256ctr 61.81? 98.73? 98.74? T:hc128 106.58? 109.36? 176.61? T:amastrid 109.71 116.65 117.80 T:ocelot1 146.65? 146.73? 234.51? T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 8.47 8.83 9.12 chacha8 9.20 9.20 9.36 salsa208 11.44? 12.17? 17.81? salsa2012 16.17 16.19 16.25 chacha20 15.89? 16.62? 24.94? salsa20 11.44? 17.73? 18.03? chacha12 20.19? 20.48? 31.84? T:speck6496ctr 21.08? 21.67? 33.17? T:speck64128ctr 23.98? 24.50? 37.78? T:speck128192ctr 24.72? 25.45? 39.05? T:speck128256ctr 27.53 27.67 27.83 T:trivium 28.20 28.20 28.20 xsalsa20 22.64? 35.03? 35.11? T:snow20 36.00 36.00 36.14 T:rabbit 23.39? 36.97? 37.86? T:speck128128ctr 27.69? 42.67? 43.05? tango642 28.72? 44.39? 44.91? T:aes128estream 43.72? 44.59? 71.69? T:aes256estream 30.28? 47.66? 47.72? T:lexv2 36.45? 57.97? 58.48? T:cryptmtv3 64.05? 64.56? 101.91? T:simon128128ctr 42.09? 65.53? 65.91? T:simon6496ctr 65.61 65.61 65.61 T:nlsv2 44.08? 69.55? 70.06? T:simon64128ctr 70.20? 110.73? 111.41? T:simon128256ctr 81.50? 130.03? 137.75? T:sosemanuk 172.92 173.89 176.78 T:tpy6 219.33 219.98 220.80 T:tpypy 219.61? 220.50? 348.16? T:aes256ctr 230.45 234.67 238.61 T:ocelot2 247.73 248.86 254.34 T:panama 189.27? 296.36? 308.53? T:aes128ctr 298.80 299.25 299.84 T:tpy 307.27? 309.42? 497.70? T:amastrid 197.58? 314.77? 322.92? T:aes192ctr 389.42 390.47 390.62 T:ocelot1 524.20? 835.84? 835.92? T:hc128 1272.92? 1273.30? 2036.78? T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 55.25? 55.25? 84.38? T:speck6496ctr 51.62? 55.88? 79.00? T:speck64128ctr 57.62? 60.00? 87.88? T:speck128192ctr 62.25? 64.12? 94.38? T:speck128256ctr 76.62 79.50 83.75 chacha8 90.25 90.25 93.25 salsa208 67.75? 95.00? 102.75? T:speck128128ctr 108.62? 108.75? 169.25? salsa2012 144.25? 144.38? 226.25? salsa20 146.62 146.75 148.50 chacha20 107.50? 168.00? 168.12? chacha12 168.62 169.88 171.50 T:trivium 171.00? 172.25? 270.12? T:simon128128ctr 174.62? 177.50? 274.88? T:aes256estream 132.38? 205.50? 206.62? T:simon6496ctr 132.50? 207.75? 207.88? T:aes128estream 215.50 216.12 222.00 T:rabbit 141.38? 218.00? 219.75? T:simon64128ctr 242.25 242.25 242.25 xsalsa20 178.62? 277.38? 277.88? T:snow20 185.25? 283.25? 283.25? T:lexv2 212.50? 319.50? 329.62? tango642 331.88 332.50 336.62 T:nlsv2 222.12? 339.62? 344.38? T:simon128256ctr 224.50? 356.25? 360.50? T:cryptmtv3 640.75? 1018.88? 1074.62? T:sosemanuk 1242.62? 1281.88? 1975.38? T:aes256ctr 1437.50 1441.00 1449.38 T:tpy6 1469.50 1490.25 1540.75 T:ocelot2 1163.75? 1765.25? 1799.62? T:aes128ctr 1179.25? 1835.25? 1884.62? T:aes192ctr 1838.25 1840.62 1850.75 T:tpypy 1933.75 1951.75 1996.25 T:panama 2064.50? 2098.38? 3291.75? T:amastrid 2537.00 2538.38 2587.00 T:ocelot1 2797.12 2801.25 2804.38 T:tpy 4186.00? 6683.25? 6687.50? T:hc128 10178.75? 10186.38? 16281.88? T:hc256