VAMPIRE	eBACS: ECRYPT Benchmarking of Cryptographic Systems	ECRYPT II

Measurements of stream ciphers on one machine: amd64; Zen 3 (a50f00); 2021 AMD Ryzen 5 PRO 5650G; 6 x 3900MHz; cezanne, 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: (bytes,cycles)

Cycles/byte for long messages 25% 50% 75% stream 0.24? 0.27? 0.38? aes256ctr 0.40 0.41 0.43 T:aes128ctr 0.49 0.49 0.50 salsa208 0.49 0.49 0.50 chacha8 0.49 0.50 0.52 T:aes192ctr 0.67 0.67 0.68 tango642 0.67 0.69 0.70 chacha12 0.70 0.70 0.71 salsa2012 0.85 0.86 0.88 T:speck6496ctr 0.90 0.90 0.90 T:speck64128ctr 1.04 1.05 1.07 chacha20 1.05 1.06 1.07 T:speck128128ctr 1.09 1.09 1.10 T:speck128192ctr 1.12 1.13 1.13 T:speck128256ctr 1.12 1.13 1.14 salsa20 1.12 1.13 1.14 xsalsa20 1.15 1.16 1.18 T:simon6496ctr 1.16 1.21 1.26 T:simon64128ctr 1.34 1.36 1.39 T:hc128 1.70 1.71 1.72 T:simon128128ctr 1.79 1.80 1.81 T:simon128256ctr 1.87 1.88 1.89 T:trivium 1.89 1.91 1.91 T:sosemanuk 1.96 1.98 1.99 T:hc256 2.05 2.07 2.08 T:panama 2.11 2.12 2.13 T:cryptmtv3 2.26 2.27 2.28 T:nlsv2 2.25 2.30 2.36 T:tpy 2.40 2.43 2.44 T:rabbit 2.52 2.57 2.76 T:tpy6 3.10 3.12 3.13 T:snow20 3.82 3.93 4.00 T:tpypy 4.02 4.04 4.05 T:lexv2 8.11 8.14 8.16 T:aes128estream 12.10 12.24 12.71 T:aes256estream 17.37 17.66 17.84 T:ocelot1 18.26 18.91 19.05 T:ocelot2 27.07 27.59 28.29 T:amastrid

Cycles/byte for 4096 bytes 25% 50% 75% stream 0.30? 0.30? 0.38? aes256ctr 0.42 0.43 0.44 T:aes128ctr 0.50 0.51 0.51 salsa208 0.51 0.51 0.51 chacha8 0.69 0.71 0.71 chacha12 0.71 0.72 0.72 salsa2012 0.80 0.81 0.82 T:aes192ctr 0.82 0.82 0.83 tango642 0.89 0.90 0.90 T:speck6496ctr 0.93 0.93 0.93 T:speck64128ctr 1.06 1.06 1.07 chacha20 1.10 1.10 1.11 T:speck128128ctr 1.13 1.13 1.13 T:speck128192ctr 1.14 1.14 1.15 salsa20 1.16 1.17 1.17 T:speck128256ctr 1.23 1.23 1.23 xsalsa20 1.29 1.30 1.31 T:simon6496ctr 1.45 1.48 1.48 T:simon64128ctr 1.94 1.95 1.96 T:simon128128ctr 2.03 2.04 2.04 T:trivium 2.13 2.14 2.14 T:sosemanuk 2.22 2.22 2.23 T:simon128256ctr 2.42 2.42 2.43 T:nlsv2 2.50 2.51 2.52 T:rabbit 2.67 2.68 2.68 T:cryptmtv3 2.72 2.72 2.73 T:panama 3.18 3.19 3.20 T:snow20 3.20 3.21 3.32 T:tpy6 3.61 3.63 3.66 T:tpy 4.14 4.16 4.16 T:lexv2 4.44 4.45 4.46 T:hc128 5.22 5.27 5.30 T:tpypy 8.19 8.21 8.22 T:aes128estream 9.44 9.45 9.46 T:hc256 12.33 12.36 12.70 T:aes256estream 18.47 18.64 18.71 T:ocelot1 19.41 19.86 19.92 T:ocelot2 28.52 28.84 29.26 T:amastrid

Cycles/byte for 1536 bytes 25% 50% 75% stream 0.34? 0.35? 0.42? aes256ctr 0.44 0.46 0.47 T:aes128ctr 0.51 0.52 0.52 chacha8 0.53 0.53 0.54 salsa208 0.71 0.73 0.74 chacha12 0.74 0.74 0.74 salsa2012 0.94 0.96 0.97 T:speck6496ctr 0.98 0.98 0.99 T:speck64128ctr 1.06 1.07 1.07 tango642 1.07 1.08 1.10 chacha20 1.16 1.16 1.17 T:speck128128ctr 1.16 1.17 1.17 salsa20 1.18 1.18 1.19 T:speck128192ctr 1.23 1.23 1.23 T:speck128256ctr 1.28 1.34 1.36 T:aes192ctr 1.40 1.40 1.41 xsalsa20 1.52 1.52 1.53 T:simon6496ctr 1.84 1.91 1.94 T:simon64128ctr 2.29 2.29 2.31 T:trivium 2.33 2.35 2.36 T:simon128128ctr 2.57 2.58 2.58 T:sosemanuk 2.64 2.65 2.66 T:rabbit 2.77 2.78 2.79 T:nlsv2 2.90 2.91 2.91 T:simon128256ctr 3.29 3.30 3.32 T:snow20 3.80 3.81 3.82 T:panama 4.08 4.08 4.10 T:cryptmtv3 4.25 4.29 4.37 T:tpy6 4.33 4.34 4.35 T:lexv2 5.82 5.85 5.89 T:tpy 7.36 7.41 7.49 T:tpypy 8.31 8.32 8.37 T:aes128estream 9.57 9.59 9.61 T:hc128 12.47 12.49 12.81 T:aes256estream 19.74 19.90 20.64 T:ocelot1 20.86 21.45 21.99 T:ocelot2 21.88 21.89 21.91 T:hc256 30.53 31.74 32.03 T:amastrid

Cycles/byte for 576 bytes 25% 50% 75% stream 0.54? 0.56? 0.69? aes256ctr 0.56 0.57 0.58 T:aes128ctr 0.73 0.73 0.74 salsa208 0.77 0.79 0.80 chacha8 0.98 0.99 1.00 chacha12 1.03 1.04 1.05 salsa2012 1.09 1.14 1.15 T:speck6496ctr 1.14 1.15 1.16 T:speck64128ctr 1.36 1.39 1.42 T:speck128128ctr 1.38 1.39 1.40 T:speck128192ctr 1.46 1.46 1.46 T:speck128256ctr 1.51 1.52 1.53 chacha20 1.64 1.66 1.67 salsa20 1.74 1.74 1.76 tango642 2.25 2.27 2.28 xsalsa20 2.53 2.56 2.61 T:aes192ctr 2.96 2.97 2.98 T:trivium 3.01 3.03 3.07 T:rabbit 3.02 3.03 3.05 T:simon6496ctr 3.10 3.11 3.12 T:simon64128ctr 3.56 3.57 3.61 T:nlsv2 3.62 3.64 3.67 T:snow20 3.71 3.73 3.74 T:sosemanuk 4.62 4.63 4.65 T:cryptmtv3 4.74 4.75 4.76 T:simon128128ctr 4.89 4.90 4.92 T:lexv2 5.13 5.15 5.17 T:simon128256ctr 6.65 6.67 6.72 T:panama 7.01 7.14 7.29 T:tpy6 8.50 8.55 8.59 T:aes128estream 11.40 11.49 11.55 T:tpy 12.88 13.04 13.22 T:aes256estream 13.20 13.27 13.39 T:tpypy 23.26 23.30 23.36 T:hc128 24.38 24.85 25.13 T:ocelot1 25.57 25.88 26.28 T:ocelot2 36.12 37.02 37.55 T:amastrid 55.11 55.16 55.21 T:hc256

Cycles/byte for 64 bytes 25% 50% 75% stream 1.88 1.91 1.98 T:aes128ctr 1.97 2.02 2.09 chacha8 2.58 2.62 2.75 T:speck6496ctr 2.75? 2.81? 3.47? aes256ctr 2.98 3.03 3.05 T:speck64128ctr 3.05 3.08 3.11 salsa208 3.39 3.44 3.59 T:speck128192ctr 3.42 3.45 3.55 T:speck128128ctr 3.64 3.69 3.80 T:speck128256ctr 3.83 3.86 3.89 chacha12 4.00 4.03 4.06 salsa2012 5.50 5.55 5.58 chacha20 6.05 6.11 6.20 salsa20 7.08 7.20 7.36 T:simon6496ctr 7.56 7.70 7.81 T:rabbit 7.78 7.84 7.94 T:snow20 7.97 8.02 8.09 T:simon64128ctr 10.25 10.25 10.36 tango642 10.31 10.38 10.42 T:cryptmtv3 11.50 11.56 11.67 T:simon128128ctr 11.55 11.59 11.70 xsalsa20 11.62 11.69 11.75 T:trivium 11.66 11.72 11.78 T:lexv2 11.84 11.92 12.06 T:aes128estream 13.00 13.11 13.25 T:simon128256ctr 17.17 17.17 17.17 T:sosemanuk 17.14 17.36 17.80 T:nlsv2 18.31 18.61 18.94 T:aes256estream 18.78 19.03 19.42 T:aes192ctr 42.00 42.33 42.72 T:tpy6 43.50 43.73 43.78 T:panama 78.36 79.55 81.53 T:ocelot1 80.30 81.14 83.31 T:ocelot2 84.92 86.12 87.20 T:tpy 88.09 88.77 89.47 T:tpypy 115.56 117.05 118.09 T:amastrid 198.19 198.48 198.95 T:hc128 479.62 480.08 480.30 T:hc256

Cycles/byte for 8 bytes 25% 50% 75% stream 16.00 16.38 16.88 T:aes128ctr 16.38 16.38 16.38 T:speck6496ctr 16.38 16.88 17.38 chacha8 17.12 17.12 17.50 T:speck64128ctr 18.75 18.88 19.00 T:speck128192ctr 21.12 21.12 21.25 T:speck128128ctr 22.12 22.38 22.38 T:speck128256ctr 23.00? 24.00? 28.12? aes256ctr 38.38 39.00 39.25 salsa208 39.00 39.00 39.88 salsa2012 38.75 39.75 40.50 chacha12 43.38 43.38 43.50 T:simon6496ctr 44.75 45.25 45.75 chacha20 47.50 47.50 47.50 T:rabbit 49.75 49.75 49.75 T:simon64128ctr 51.12 51.75 52.62 T:aes128estream 61.25 62.12 63.25 T:snow20 66.88 67.12 67.50 T:cryptmtv3 68.88 69.38 70.50 T:lexv2 70.00 70.38 70.75 salsa20 72.25 72.25 72.62 T:simon128128ctr 75.25 76.50 78.25 T:aes256estream 78.25 78.62 79.00 tango642 82.00 82.00 82.62 T:simon128256ctr 82.00 83.00 83.25 T:nlsv2 83.00 83.38 83.88 T:trivium 114.12 114.50 115.25 xsalsa20 137.50 137.50 137.50 T:sosemanuk 151.12 154.38 156.25 T:aes192ctr 323.88 327.00 331.75 T:tpy6 341.50 343.88 346.00 T:panama 510.00 521.75 537.62 T:ocelot1 520.75 526.88 537.75 T:ocelot2 665.38 671.38 676.88 T:tpy 679.38 683.75 686.25 T:tpypy 792.25 801.00 815.25 T:amastrid 1584.88 1588.12 1593.00 T:hc128 3844.62 3850.25 3852.12 T:hc256