VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; Broadwell+AES (406f1); 2016 Intel Xeon E5-2609 v4; 8 x 1700MHz; bolero, supercop-20250922

[Page version: 20251103 11:56:36]

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 0.55? 0.56? 0.87? chacha8 0.62 0.62 0.63 salsa208 0.73 0.75 0.76 tango642 0.76 0.78 0.84 chacha12 0.87 0.88 0.88 salsa2012 0.88 0.88 0.89 T:aes128ctr 0.95 0.97 1.00 T:aes192ctr 1.01 1.02 1.02 aes256ctr 1.03 1.04 1.05 T:speck6496ctr 1.06 1.07 1.09 T:speck64128ctr 1.20 1.20 1.21 chacha20 1.26 1.26 1.27 T:speck128128ctr 1.29? 1.30? 2.02? T:speck128192ctr 1.32 1.34 1.34 T:speck128256ctr 1.37 1.38 1.39 salsa20 1.15? 1.39? 2.30? xsalsa20 1.52 1.52 1.53 T:simon6496ctr 1.57 1.58 1.59 T:simon64128ctr 1.71 1.74 1.77 T:hc128 1.91 1.92 1.92 T:trivium 2.24 2.27 2.33 T:tpy 2.27 2.28 2.29 T:simon128128ctr 2.31? 2.41? 8.28? T:hc256 2.41 2.41 2.42 T:cryptmtv3 1.77? 2.45? 2.55? T:simon128256ctr 2.44 2.46 2.49 T:sosemanuk 2.52 2.58 2.64 T:tpy6 2.59 2.62 2.65 T:nlsv2 2.86? 2.87? 4.53? T:rabbit 2.99? 3.04? 5.17? T:panama 3.13 3.14 3.15 T:snow20 3.68 3.76 3.88 T:tpypy 4.21 4.23 4.25 T:lexv2 8.50 8.52 8.53 T:aes128estream 13.47 13.52 13.57 T:aes256estream 17.49 17.64 18.47 T:ocelot1 18.60 18.91 19.56 T:ocelot2 31.58 32.52 33.01 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 0.56? 0.57? 0.80? chacha8 0.63 0.64 0.64 salsa208 0.79 0.79 0.83 chacha12 0.89 0.89 0.89 salsa2012 0.91 0.91 0.92 T:aes128ctr 0.92 0.92 0.92 tango642 1.05 1.06 1.06 aes256ctr 1.07 1.07 1.08 T:speck6496ctr 1.10 1.10 1.12 T:speck64128ctr 1.21 1.21 1.22 chacha20 1.30 1.30 1.30 T:speck128128ctr 1.32 1.33 1.34 T:aes192ctr 1.33? 1.34? 1.87? T:speck128192ctr 1.38 1.38 1.38 T:speck128256ctr 1.39 1.39 1.40 salsa20 1.49? 1.50? 2.18? xsalsa20 1.72 1.72 1.72 T:simon6496ctr 1.91 1.91 1.91 T:simon64128ctr 2.01 2.01 2.02 T:trivium 2.55 2.56 2.56 T:simon128128ctr 2.75 2.77 2.78 T:nlsv2 2.76 2.77 2.78 T:sosemanuk 2.93 2.93 2.94 T:cryptmtv3 2.96? 2.97? 4.21? T:rabbit 2.92 2.98 2.99 T:simon128256ctr 3.23 3.24 3.25 T:snow20 3.25 3.28 3.31 T:tpy6 3.70 3.71 3.74 T:tpy 3.96? 3.99? 5.58? T:panama 4.35 4.37 4.38 T:lexv2 5.12 5.17 5.24 T:tpypy 5.15 5.17 5.18 T:hc128 8.56 8.57 8.58 T:aes128estream 10.70? 10.74? 15.14? T:hc256 13.56 13.59 13.61 T:aes256estream 18.81 18.84 19.41 T:ocelot1 19.93 20.05 20.48 T:ocelot2 33.23 33.74 34.07 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 0.58 0.58 0.59 chacha8 0.65 0.66 0.66 salsa208 0.81 0.83 0.86 chacha12 0.91 0.91 0.92 salsa2012 0.95 0.95 0.96 T:aes128ctr 1.11 1.11 1.12 aes256ctr 1.12 1.12 1.12 T:speck6496ctr 1.15 1.16 1.17 T:speck64128ctr 1.22 1.23 1.23 chacha20 1.19? 1.23? 1.67? tango642 1.36 1.37 1.37 T:speck128128ctr 1.39? 1.40? 1.96? T:speck128192ctr 1.41 1.42 1.42 salsa20 1.43 1.43 1.44 T:speck128256ctr 1.67? 1.68? 2.35? xsalsa20 1.88 1.89 1.93 T:aes192ctr 2.03 2.04 2.04 T:simon6496ctr 2.18 2.18 2.19 T:trivium 2.44 2.44 2.45 T:simon64128ctr 3.01 3.04 3.07 T:simon128128ctr 3.03 3.06 3.11 T:nlsv2 3.13 3.14 3.15 T:rabbit 3.31 3.34 3.35 T:sosemanuk 3.41? 3.42? 4.83? T:snow20 3.66 3.80 3.83 T:simon128256ctr 4.22 4.23 4.23 T:cryptmtv3 4.33 4.40 4.48 T:tpy6 4.58 4.59 4.60 T:lexv2 5.54 5.57 5.59 T:panama 6.13 6.18 6.22 T:tpy 7.46 7.48 7.51 T:tpypy 8.64 8.65 8.66 T:aes128estream 10.80 10.81 10.83 T:hc128 13.66 13.71 13.74 T:aes256estream 20.71 20.84 21.21 T:ocelot1 21.98 22.13 22.46 T:ocelot2 24.57 24.61 24.67 T:hc256 35.70 35.92 36.77 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 0.79 0.80 0.81 chacha8 0.90 0.91 0.92 salsa208 1.09 1.10 1.15 chacha12 1.19 1.20 1.21 T:aes128ctr 1.25 1.26 1.26 salsa2012 1.33 1.34 1.35 T:speck6496ctr 1.37 1.38 1.39 T:speck64128ctr 1.40 1.40 1.41 aes256ctr 1.62 1.62 1.64 T:speck128128ctr 1.65 1.65 1.67 T:speck128192ctr 1.69 1.70 1.72 chacha20 1.71? 1.73? 2.44? T:speck128256ctr 1.94 1.94 1.97 salsa20 1.94 1.95 1.98 tango642 2.60 2.61 2.62 T:trivium 2.64? 2.65? 3.24? xsalsa20 3.49 3.52 3.56 T:aes192ctr 3.56 3.57 3.59 T:rabbit 3.56 3.58 3.59 T:simon64128ctr 3.56 3.58 3.60 T:simon6496ctr 3.72 3.78 3.86 T:nlsv2 3.81 3.84 3.86 T:snow20 4.78 4.78 4.79 T:cryptmtv3 4.80 4.83 4.88 T:sosemanuk 5.19 5.22 5.24 T:lexv2 5.28 5.29 5.31 T:simon128128ctr 5.72? 5.75? 6.47? T:simon128256ctr 7.45 7.53 7.58 T:tpy6 8.88 8.90 8.92 T:aes128estream 9.74 9.79 9.85 T:panama 12.35 12.47 12.63 T:tpy 13.94 13.99 14.05 T:aes256estream 13.90? 14.03? 20.31? T:tpypy 25.74 26.03 26.33 T:ocelot1 26.01 26.04 26.08 T:hc128 26.81 26.97 27.35 T:ocelot2 42.17 42.50 42.79 T:amastrid 61.60 61.69 61.86 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 2.94 3.00 3.06 chacha8 3.31 3.38 3.38 salsa208 3.38 3.44 3.56 T:speck6496ctr 3.62 3.69 3.75 T:speck64128ctr 3.88 3.94 4.00 T:aes128ctr 3.88 3.94 4.06 chacha12 4.19 4.19 4.25 T:speck128192ctr 4.25 4.38 4.44 T:speck128128ctr 4.31 4.44 4.69 T:speck128256ctr 4.38 4.44 4.44 salsa2012 4.62 4.62 4.69 aes256ctr 6.00? 6.06? 8.50? chacha20 6.50 6.56 6.56 salsa20 7.69 7.75 7.81 T:trivium 7.94 8.00 8.12 T:simon6496ctr 8.38 8.44 8.75 T:rabbit 8.88 9.06 9.25 T:snow20 9.31 9.31 9.44 T:simon64128ctr 9.88 9.88 9.94 T:cryptmtv3 11.69 11.75 11.88 tango642 12.00 12.12 12.19 T:aes128estream 12.69 12.81 12.94 T:simon128128ctr 12.81? 12.94? 18.14? xsalsa20 12.88 13.00 13.12 T:lexv2 14.12 14.44 15.25 T:nlsv2 14.50 14.56 14.69 T:simon128256ctr 18.75 18.88 18.94 T:aes256estream 21.56 21.69 21.88 T:sosemanuk 23.56 23.75 23.88 T:aes192ctr 45.31 45.56 46.25 T:tpy6 63.31? 63.50? 89.70? T:panama 89.38 90.31 92.06 T:ocelot2 90.19 91.06 92.19 T:ocelot1 94.50 95.56 96.88 T:tpy 93.88 96.81 97.75 T:tpypy 120.94 121.69 122.81 T:amastrid 215.62 216.00 216.25 T:hc128 535.44 536.31 537.31 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 15.50 16.00 17.00 T:speck64128ctr 18.50? 19.00? 21.50? T:speck6496ctr 21.00 21.00 21.50 T:speck128128ctr 21.50 22.00 23.00 T:speck128192ctr 23.00 24.00 24.50 T:speck128256ctr 31.00 31.50 32.00 T:aes128ctr 36.00 36.50 37.00 chacha8 38.00 38.00 38.50 aes256ctr 41.50? 41.50? 58.00? salsa208 46.00 46.50 47.50 T:simon6496ctr 48.00 49.00 50.50 chacha12 49.50 50.50 51.00 T:trivium 50.50 50.50 51.00 salsa2012 51.50 52.50 54.00 T:rabbit 54.00 54.50 55.50 T:aes128estream 56.00 56.00 56.50 T:cryptmtv3 56.00 56.00 56.50 T:simon64128ctr 70.00 70.00 70.50 chacha20 70.50 71.00 71.50 T:aes256estream 70.50 72.00 74.50 T:snow20 73.50 74.50 76.50 T:simon128128ctr 77.00 77.50 78.50 T:lexv2 77.50 78.50 84.00 T:nlsv2 84.50 85.00 86.00 T:simon128256ctr 90.50 91.50 92.00 tango642 95.50 95.50 96.00 salsa20 145.00 146.00 147.50 xsalsa20 173.00 174.00 175.00 T:sosemanuk 191.00 192.00 194.00 T:aes192ctr 341.00 349.50 352.00 T:tpy6 499.00 501.00 505.00 T:panama 591.50 600.50 617.00 T:ocelot2 593.00 609.00 620.50 T:ocelot1 731.00? 740.00? 1006.00? T:tpypy 744.00 747.50 758.50 T:tpy 802.00 808.00 813.00 T:amastrid 1724.50 1727.00 1729.50 T:hc128 4281.00 4288.50 4297.50 T:hc256