v0.8.4 (2020-08-22)

• Mirage_crypto_rng: avoid using rdseed if it returned 0 during bootstrap (#82 @hannesm)
• Avoid misaligned cast in xor (#79 reported by @talex5 on arm32, fixed in #81 by @hannesm)

v0.8.3 (2020-07-27)

• Fix ppc64le cycle_counter (add missing Val_long) (#78 @hannesm)

  • test_entropy is now test_entropy_collection
  • test_entropy checks timer and bootstrap functions
• Avoid polluting symbol table with global non-prefixed symbols (reported by @anmonteiro in #77, fixed #78 @hannesm (suggested by @dinosaure))
• Avoid "caml_" prefix in entropy_stubs, use "mc_" instead (#78 @hannesm)

v0.8.2 (2020-07-25)

• Add support for ppc64le. (#76 @avsm)

v0.8.1 (2020-07-02)

• Add Chacha20 implementation (based on abeaumont/ocaml-chacha), supporting both DJB's original specification (nonce 64 bit, counter 64 bit) and IETF (RFC 8439: nonce 96 bit, counter 32 bit) (#72 @hannesm)
• Add Poly1305 implementation based on floodyberry/poly1305-donna (#72 @hannesm)

• Unified AEAD module type, implemented by CCM, GCM, and Chacha20/Poly1305 The functions "authenticate_encrypt" and "authenticate_decrypt" are defined, which append (encrypt) and check equality (decrypt, using Eqaf for constant-time comparison) the authentication tag directly. Breaking changes:

  • GCM "~iv" is now "~nonce"
  • GCM encrypt returns the encrypted data and authentication tag appended
  • GCM decrypt returns the plaintext as option (None on authentication failure) (#73 @hannesm)

v0.8.0 (2020-06-18)

• New package mirage-crypto-rng-mirage which contains the entropy collection code for MirageOS (#69 requested by @samoht, implemented by @hannesm)
• Mirage_crypto_rng_lwt.initialize is not inside the Lwt monad anymore, and thus can be called by libraries at top level (#69, requested by @avsm @xguerin @talex5 in mirage/ocaml-conduit#318, implemented by @hannesm)
• Both Mirage_crypto_rng_lwt.initialize and Mirage_crypto_rng_unix.initialize don't do anything if called a second time (#69, implemented by @hannesm)
• Entropy source registration is now open and done via Entropy.register_source : string -> source, instead of a closed variant (#69, fixes #68, implemented by @hannesm)

v0.7.0 (2020-05-18)

• CPU feature detection (AESNI, SSE3, PCLMULQ) at runtime instead of compile time (#53 @Julow, fixed MirageOS support #61, review by @hannesm) performance hit up to 5%

• Revise entropy collection (#64 @hannesm review by @dinosaure @cfcs) mirage-crypto-entropy has been folded into mirage-crypto-rng.{unix,lwt,mirage}

  • the RNG is no longer fork() safe, if you use fork in your code, be sure to reseed the RNG in the child process
  • on Unix and Lwt, the used RNG is Fortuna, seeded by getrandom(), rdrand/rdseed, and whirlwind
  • Mirage_crypto_rng_lwt does entropy collection for Lwt applications

  • entropy collection is now similar to FreeBSD:

    • rdrand/rdseed is executed in a separate task (by default every second)
    • on Unix, getrandom() is executed in another separate task (by default every 10 seconds)
    • on every enter of the Lwt event loop, some bits of rdtsc are collected (rdrand/rdseed is not on each even loop enter anymore)
  • Fortuna only uses entropy pools if the given period is exhausted (defaults to 1s), and the pool size exceeds 64 bytes
  • The unseeded generator exception prints instructions how to seed the RNG
• 32 bit support (for ghash), requested by @TImada in #60, #65 @hannesm
• use Eqaf_cstruct.find_uint8 instead of Cs.ct_find_uint8 (#52 @dinosaure)
• add (:standard) in C flags to allow cross-compilation #47 @samoht
• Mirage_crypto.Uncommon: remove several functions (Cs.create, Option), requires OCaml 4.08 (#49 #51 @hannesm)
• remove ocplib-endian dependency, use Bytes directly (since 4.07) #51 @hannesm
• bitfn.h cleanup (#56 #58 @hannesm)
• fix build if opam is not available (#66 @hannesm)
• update test.yml GitHub actions (#44 #57 @imbsky)
• Travis CI for arm64 (#55 @hannesm)

v0.6.2 (2020-03-19)

• Do not validate hardcoded DH groups to speedup initializatio time (reported in #43 by @rbardou, fixed in #42 by @hannesm)

v0.6.1 (2020-03-15)

• Add Windows 10+ support (#39 @avsm, review by @hannesm @dinosaure)
• Fix unix stubs to be allocating in case of exception (#39 @avsm review by @hannesm @dinosaure)
• Add GitHub Actions CI (#39 @avsm)
• Rebuild source if the MIRAGE_CRYPTO_ACCELERATE environment variable changes value (#40 @avsm)

v0.6.0 (2020-03-11)

Initial release as mirage-crypto, based on nocrypto 0.5.4 (from January 2017), written by David Kaloper, and mirage-entropy 0.5.1 (February 2020). The goal is to maintain mirage-crypto collaboratively with required reviews for all pull requests, and a CI setup for multiple platforms, thus issues are caught early. The minimum targeted OCaml version is 4.07.0. Mirage-crypto and nocrypto can be installed in the same opam switch, and also linked into the same binary.

The major difference is a split into four opam packages:

• mirage-crypto contains the hash algorithms and ciphers
• mirage-crypto-pk contains the public key cryptography
• mirage-crypto-rng contains the Random Number Generators
• mirage-crypto-entropy contains entropy seeding code used by MirageOS (previously mirage-entropy)

Only mirage-crypto-pk depends on zarith and gmp, the dependency cone of the other packages is small.

Changes from nocrypto 0.5.4/mirage-entropy 0.5.1:

• Dune is used as build system (no longer pack()ed, no optional dependencies)
• Base64 has been removed, use base64
• Numeric has been removed, Mirage_crypto_pk.Z_extra provides to/of_cstruct_be
• RNG generators over numeric types (Rng.Int / Int32 / Int64) have been removed use randomconv
• For random generation of Z.t, previously Rng.Z, now Mirage_crypto_pk.Z_extra.gen and gen_r are provided

mirage-crypto

• Hash: Change of the hashing interface Hash.S:

  • t is now immutable;
  • feed and get are therefore referentially transparent; and
  • digestv was replaced by digesti. Old behavior of feed and get can be replicated by wrapping a t in a reference cell. digestv can be obtained by combining digesti with List.iter.
  • New functions: Hash.S.hmaci, Hash.digesti, Hash.maci
  • The type Hash.hash cannot be converted to a S-expression anymore
• Counter module got removed
• CTR mode: custom type ctr for the counter
• GCM is accelerated (with pclmulqdq and SSE3)
• CCM now computes correct tag with empty additional data
• CCM fails with Invalid_argument when short or long nonce is used (previously assert false)
• CCM decryption of empty ciphertext no longer fails
• GCM fails on empty IV

mirage-crypto-pk

• key data structures are private, smart constructors validate the key data
• DSA blinding now blinds the entire computation of s (previously r was blinded), same as what OpenSSL does
• RSA decrypt/sign has an optional argument (crt_hardening) to check whether the computed signature is valid (default true for PKCS1 signatures), avoiding Lenstra's CRT attack (mentioned again by Weimer)
• use Eqaf_cstruct.equal instead of home-grown ct_eq
• bindings with a bits argument are labeled to avoid confusion of bits and bytes
• Dh secret is now a pair of group and secret, Dh.shared no longer gets the group as separate argument
• the powm_sec function is used to improve timing side channels mitigation (see https://gmplib.org/~tege/modexp-silent.pdf for further detalls). RSA still uses (lacking alternatives) Z.erem and Z.mul/add/sub without timing mitigations, introduces 20-25% performance penalty (as shown below, and discussed in the pdf)

mirage-crypto-rng

• Default RNG is now Null (previously: Fortuna)
• The Mirage_crypto_rng_unix.initialize () sets the default RNG to direct syscalls to getrandom() (on Linux) or getentropy() (on BSD and macOS). Previously, /dev/urandom or /dev/random were used.to seed a Fortuna RNG. The Mirage_crypto_rng is now fork-safe on Unix systems: the child process no longer starts with the RNG seed of the parent.
• As noted above, the generators for numeric types have been removed.

mirage-crypto-entropy

• Control flow inverted, now Mirage_crypto_entropy sets the default RNG in Mirage_crypto_rng, and feeds this rng - previously, a RNG could register a callback to invoke whenever entropy was harvested.
• AMD CPUs with bad rdrand/rdseed, which always return -1, are detected and not used
• Initialization: in addition to whirlwind, rdrand/rdseed is used four times to seed the RNG (including check of the CR flag to ensure random was generated); if no hardware RNG is available, whirlwind is executed thrice.

These changes were prepared and reviewed by @pqwy, @hannesm, @cfcs, @dinosaure, @emillon, @haesbaert, @mseri, @samoht, @reynir, @avsm, @TheLortex, @marmarek.

Performance of mirage-crypto 0.6.0 on an i7-5600U CPU @ 2.60GHz (OCaml 4.09.0):

• [aes-128-ecb] 16: 130.635750 MB/s (17131413 iters in 2.001 s) 64: 446.478551 MB/s (14619573 iters in 1.999 s) 256: 1390.639142 MB/s (11394212 iters in 2.000 s) 1024: 2570.981481 MB/s (5255924 iters in 1.996 s) 8192: 3602.365523 MB/s (923220 iters in 2.002 s)
• [aes-128-cbc-e] 16: 118.576157 MB/s (15562918 iters in 2.003 s) 64: 284.131835 MB/s (9337111 iters in 2.006 s) 256: 443.035755 MB/s (3634381 iters in 2.003 s) 1024: 517.982442 MB/s (1060993 iters in 2.000 s) 8192: 549.691380 MB/s (141017 iters in 2.004 s)
• [aes-128-cbc-d] 16: 120.294692 MB/s (15280286 iters in 1.938 s) 64: 408.896399 MB/s (13385151 iters in 1.998 s) 256: 1239.911665 MB/s (10218204 iters in 2.012 s) 1024: 2307.252487 MB/s (4750356 iters in 2.011 s) 8192: 3200.883102 MB/s (822730 iters in 2.008 s)
• [aes-128-ctr] 16: 128.202344 MB/s (16596766 iters in 1.975 s) 64: 423.311050 MB/s (13761489 iters in 1.984 s) 256: 1263.233926 MB/s (10270525 iters in 1.985 s) 1024: 2168.164371 MB/s (4474403 iters in 2.015 s) 8192: 3029.360927 MB/s (769213 iters in 1.984 s)
• [aes-128-gcm] 16: 42.201314 MB/s (5897756 iters in 2.132 s) 64: 152.244886 MB/s (5026236 iters in 2.015 s) 256: 546.479756 MB/s (4394580 iters in 1.963 s) 1024: 1223.989968 MB/s (2499487 iters in 1.994 s) 8192: 1974.670878 MB/s (507143 iters in 2.006 s)
• [aes-128-ghash] 16: 48.954628 MB/s (6311856 iters in 1.967 s) 64: 176.553952 MB/s (5735112 iters in 1.983 s) 256: 700.256364 MB/s (5667665 iters in 1.976 s) 1024: 2095.813910 MB/s (4238823 iters in 1.975 s) 8192: 5038.045638 MB/s (1284257 iters in 1.991 s)
• [aes-128-ccm] 16: 10.188661 MB/s (1335151 iters in 2.000 s) 64: 33.832886 MB/s (1107442 iters in 1.998 s) 256: 80.837804 MB/s (658093 iters in 1.988 s) 1024: 125.678615 MB/s (256478 iters in 1.993 s) 8192: 150.055764 MB/s (38013 iters in 1.979 s)
• [aes-192-ecb] 16: 123.502998 MB/s (16110634 iters in 1.990 s) 64: 409.911649 MB/s (13468258 iters in 2.005 s) 256: 1270.949485 MB/s (10447481 iters in 2.007 s) 1024: 2301.964244 MB/s (4655905 iters in 1.975 s) 8192: 3106.818520 MB/s (803606 iters in 2.021 s)
• [aes-256-ecb] 16: 119.076345 MB/s (15491470 iters in 1.985 s) 64: 394.571062 MB/s (12925749 iters in 1.999 s) 256: 1202.173821 MB/s (9784687 iters in 1.987 s) 1024: 2091.674323 MB/s (4242987 iters in 1.981 s) 8192: 2775.548835 MB/s (708481 iters in 1.994 s)
• [d3des-ecb] 16: 18.146565 MB/s (2349955 iters in 1.976 s) 64: 20.393800 MB/s (665318 iters in 1.991 s) 256: 20.864270 MB/s (172912 iters in 2.023 s) 1024: 20.749041 MB/s (42337 iters in 1.993 s) 8192: 21.299626 MB/s (5102 iters in 1.871 s)
• [fortuna] 16: 45.461127 MB/s (6009127 iters in 2.017 s) 64: 163.608657 MB/s (5478371 iters in 2.044 s) 256: 576.021850 MB/s (4815192 iters in 2.041 s) 1024: 1394.787051 MB/s (2838832 iters in 1.988 s) 8192: 2375.298268 MB/s (607658 iters in 1.999 s)
• [rng] 16: 18.258923 MB/s (2416789 iters in 2.020 s) 64: 54.093151 MB/s (1770883 iters in 1.998 s) 256: 106.310471 MB/s (870193 iters in 1.998 s) 1024: 109.436412 MB/s (225474 iters in 2.012 s) 8192: 109.587676 MB/s (28091 iters in 2.003 s)
• [md5] 16: 60.932675 MB/s (7919161 iters in 1.983 s) 64: 166.939662 MB/s (5392579 iters in 1.972 s) 256: 315.792950 MB/s (2725727 iters in 2.107 s) 1024: 432.116247 MB/s (888683 iters in 2.008 s) 8192: 457.205673 MB/s (123686 iters in 2.113 s)
• [sha1] 16: 51.685511 MB/s (7112274 iters in 2.100 s) 64: 142.165035 MB/s (4545000 iters in 1.951 s) 256: 290.103032 MB/s (2374321 iters in 1.998 s) 1024: 392.263515 MB/s (798932 iters in 1.989 s) 8192: 441.651051 MB/s (111759 iters in 1.977 s)
• [sha256] 16: 32.740541 MB/s (4248963 iters in 1.980 s) 64: 82.039587 MB/s (2667306 iters in 1.984 s) 256: 148.107628 MB/s (1206556 iters in 1.989 s) 1024: 187.633143 MB/s (378650 iters in 1.971 s) 8192: 203.079830 MB/s (51460 iters in 1.980 s)
• [sha512] 16: 27.174808 MB/s (3539910 iters in 1.988 s) 64: 107.114479 MB/s (3511519 iters in 2.001 s) 256: 181.582232 MB/s (1481042 iters in 1.991 s) 1024: 262.146451 MB/s (538311 iters in 2.005 s) 8192: 301.017129 MB/s (76650 iters in 1.989 s)
• [rsa-generate] 1024: 112.465 ops per second (1269 iters in 11.283) 2048: 11.407 ops per second (125 iters in 10.958) 4096: 1.342 ops per second (9 iters in 6.709)
• [rsa-encrypt] 1024: 85190.882 ops per second (1086956 iters in 12.759) 2048: 28593.006 ops per second (349650 iters in 12.229) 4096: 8813.099 ops per second (102040 iters in 11.578)
• [rsa-decrypt] 1024: 4032.054 ops per second (29708 iters in 7.368) 2048: 731.030 ops per second (7274 iters in 9.950) 4096: 116.340 ops per second (1145 iters in 9.842)
• [rsa-pkcs1-encrypt] 1024: 77539.233 ops per second (735294 iters in 9.483) 2048: 24854.606 ops per second (268817 iters in 10.816) 4096: 7693.667 ops per second (85324 iters in 11.090)
• [rsa-pkcs1-decrypt] 1024: 3988.810 ops per second (38699 iters in 9.702) 2048: 744.531 ops per second (7314 iters in 9.824) 4096: 115.388 ops per second (1141 iters in 9.888)
• [rsa-pkcs1-sign] 1024: 3417.872 ops per second (34530 iters in 10.103) 2048: 657.928 ops per second (6568 iters in 9.983) 4096: 107.867 ops per second (1071 iters in 9.929)
• [rsa-pkcs1-verify] 1024: 69062.244 ops per second (694444 iters in 10.055) 2048: 23739.709 ops per second (236966 iters in 9.982) 4096: 7543.535 ops per second (76687 iters in 10.166)
• [rsa-pss-sign] 1024: 3866.357 ops per second (41528 iters in 10.741) 2048: 735.117 ops per second (7337 iters in 9.981) 4096: 112.564 ops per second (1144 iters in 10.163)
• [rsa-pss-verify] 1024: 58865.502 ops per second (602409 iters in 10.234) 2048: 21324.568 ops per second (222222 iters in 10.421) 4096: 7032.052 ops per second (71225 iters in 10.129)
• [dsa-generate] 1024: 34.113 ops per second (462 iters in 13.543) 2048: 2.412 ops per second (26 iters in 10.779) 3072: 0.395 ops per second (6 iters in 15.194)
• [dsa-sign] 1024: 6868.305 ops per second (68870 iters in 10.027) 2048: 1771.636 ops per second (17959 iters in 10.137) 3072: 807.851 ops per second (8884 iters in 10.997)
• [dsa-verify] 1024: 5927.364 ops per second (60901 iters in 10.275) 2048: 1043.694 ops per second (10307 iters in 9.875) 3072: 505.150 ops per second (5163 iters in 10.221)
• [dh-secret] oakley5 (1536): 2965.814 ops per second (27173 iters in 9.162) oakley14 (2048): 1829.276 ops per second (19372 iters in 10.590) ffdhe2048: 1863.896 ops per second (19215 iters in 10.309) ffdhe3072: 705.235 ops per second (7278 iters in 10.320) ffdhe4096: 340.646 ops per second (3353 iters in 9.843) ffdhe6144: 154.170 ops per second (1508 iters in 9.781)
• [dh-share] oakley5 (1536): 3168.025 ops per second (32658 iters in 10.309) oakley14 (2048): 1840.663 ops per second (19054 iters in 10.352) ffdhe2048: 1816.268 ops per second (19157 iters in 10.547) ffdhe3072: 696.719 ops per second (7166 iters in 10.285) ffdhe4096: 337.490 ops per second (3399 iters in 10.071) ffdhe6144: 152.990 ops per second (1532 iters in 10.014)

compared to nocrypto master (ed7bb8d911dc340e36d85d335d9edb8339f0932d):

• [aes-128-ecb] 16: 135.442339 MB/s (17569952 iters in 1.979 s) 64: 460.922168 MB/s (15006148 iters in 1.987 s) 256: 1428.596998 MB/s (11586270 iters in 1.980 s) 1024: 2603.066949 MB/s (5351070 iters in 2.007 s) 8192: 3562.221449 MB/s (894266 iters in 1.961 s)
• [aes-128-cbc-e] 16: 112.052192 MB/s (15563390 iters in 2.119 s) 64: 283.095265 MB/s (8731413 iters in 1.882 s) 256: 441.262003 MB/s (3650061 iters in 2.019 s) 1024: 506.978895 MB/s (1024850 iters in 1.974 s) 8192: 521.717454 MB/s (139145 iters in 2.084 s)
• [aes-128-cbc-d] 16: 117.319846 MB/s (15508408 iters in 2.017 s) 64: 402.086303 MB/s (13138679 iters in 1.994 s) 256: 1247.900251 MB/s (10363209 iters in 2.027 s) 1024: 2303.701767 MB/s (4783087 iters in 2.028 s) 8192: 3177.857027 MB/s (807868 iters in 1.986 s)
• [aes-128-ctr] 16: 124.833523 MB/s (16276319 iters in 1.990 s) 64: 420.635080 MB/s (13606571 iters in 1.974 s) 256: 1251.742047 MB/s (10235121 iters in 1.996 s) 1024: 2145.657443 MB/s (4369951 iters in 1.989 s) 8192: 2970.097091 MB/s (757489 iters in 1.992 s)
• [aes-128-gcm] 16: 44.527800 MB/s (5854064 iters in 2.006 s) 64: 152.068032 MB/s (4992261 iters in 2.004 s) 256: 542.805976 MB/s (4414864 iters in 1.986 s) 1024: 1193.384389 MB/s (2460672 iters in 2.014 s) 8192: 1935.605143 MB/s (487413 iters in 1.967 s)
• [aes-128-ghash] 16: 47.523782 MB/s (6246603 iters in 2.006 s) 64: 172.924057 MB/s (5636899 iters in 1.990 s) 256: 689.413807 MB/s (5634564 iters in 1.995 s) 1024: 2058.438893 MB/s (4202766 iters in 1.994 s) 8192: 4920.604006 MB/s (1254857 iters in 1.992 s)
• [aes-128-ccm] 16: 9.845429 MB/s (1274401 iters in 1.975 s) 64: 32.275969 MB/s (1043211 iters in 1.973 s) 256: 78.221849 MB/s (600615 iters in 1.875 s) 1024: 120.482150 MB/s (245463 iters in 1.990 s) 8192: 143.803733 MB/s (36746 iters in 1.996 s)
• [aes-192-ecb] 16: 117.584221 MB/s (15668971 iters in 2.033 s) 64: 400.021369 MB/s (13021257 iters in 1.987 s) 256: 1255.330965 MB/s (10273511 iters in 1.998 s) 1024: 2229.593050 MB/s (4530976 iters in 1.985 s) 8192: 3046.782735 MB/s (773377 iters in 1.983 s)
• [aes-256-ecb] 16: 114.745077 MB/s (14905839 iters in 1.982 s) 64: 384.193368 MB/s (12486413 iters in 1.984 s) 256: 1164.849725 MB/s (9530435 iters in 1.997 s) 1024: 2028.763403 MB/s (4114904 iters in 1.981 s) 8192: 2694.585208 MB/s (683879 iters in 1.983 s)
• [d3des-ecb] 16: 17.672106 MB/s (2308796 iters in 1.994 s) 64: 19.903860 MB/s (648180 iters in 1.988 s) 256: 20.828452 MB/s (169190 iters in 1.983 s) 1024: 21.026390 MB/s (42581 iters in 1.978 s) 8192: 21.103543 MB/s (5365 iters in 1.986 s)
• [fortuna] 16: 45.528384 MB/s (5972145 iters in 2.002 s) 64: 164.170314 MB/s (5392710 iters in 2.005 s) 256: 583.800203 MB/s (4766501 iters in 1.993 s) 1024: 1384.452890 MB/s (2828454 iters in 1.995 s) 8192: 2300.342453 MB/s (586851 iters in 1.993 s)
• [md5] 16: 60.352932 MB/s (7833123 iters in 1.980 s) 64: 163.484629 MB/s (4985343 iters in 1.861 s) 256: 326.053714 MB/s (2676931 iters in 2.004 s) 1024: 430.897892 MB/s (899381 iters in 2.038 s) 8192: 481.258285 MB/s (110790 iters in 1.799 s)
• [sha1] 16: 51.720201 MB/s (7014270 iters in 2.069 s) 64: 137.512543 MB/s (4583413 iters in 2.034 s) 256: 283.507242 MB/s (2120380 iters in 1.826 s) 1024: 381.400222 MB/s (773643 iters in 1.981 s) 8192: 434.856626 MB/s (110993 iters in 1.994 s)
• [sha256] 16: 32.117877 MB/s (4162582 iters in 1.978 s) 64: 78.860229 MB/s (2562436 iters in 1.983 s) 256: 143.113584 MB/s (1167932 iters in 1.992 s) 1024: 181.775160 MB/s (370913 iters in 1.993 s) 8192: 196.245056 MB/s (49758 iters in 1.981 s)
• [sha512] 16: 27.343156 MB/s (3569255 iters in 1.992 s) 64: 108.955616 MB/s (3534730 iters in 1.980 s) 256: 181.403811 MB/s (1471724 iters in 1.981 s) 1024: 261.357534 MB/s (527511 iters in 1.971 s) 8192: 298.635244 MB/s (75985 iters in 1.988 s)
• [rsa-generate] 1024: 137.412 ops per second (1358 iters in 9.883) 2048: 13.585 ops per second (144 iters in 10.600) 4096: 1.386 ops per second (9 iters in 6.494)
• [rsa-encrypt] 1024: 85072.401 ops per second (833333 iters in 9.796) 2048: 28931.132 ops per second (284090 iters in 9.820) 4096: 8969.821 ops per second (88028 iters in 9.814)
• [rsa-decrypt] 1024: 5318.640 ops per second (48875 iters in 9.189) 2048: 957.132 ops per second (9731 iters in 10.167) 4096: 139.017 ops per second (1396 iters in 10.042)
• [rsa-pkcs1-encrypt] 1024: 70783.935 ops per second (537634 iters in 7.595) 2048: 24159.049 ops per second (241545 iters in 9.998) 4096: 7667.324 ops per second (73964 iters in 9.647)
• [rsa-pkcs1-decrypt] 1024: 5227.203 ops per second (48828 iters in 9.341) 2048: 940.782 ops per second (9591 iters in 10.195) 4096: 138.289 ops per second (1385 iters in 10.015)
• [rsa-pkcs1-sign] 1024: 5089.071 ops per second (41806 iters in 8.215) 2048: 938.950 ops per second (9480 iters in 10.096) 4096: 138.016 ops per second (1378 iters in 9.984)
• [rsa-pkcs1-verify] 1024: 64928.671 ops per second (537634 iters in 8.280) 2048: 23218.845 ops per second (225225 iters in 9.700) 4096: 7566.439 ops per second (73313 iters in 9.689)
• [rsa-pss-sign] 1024: 5016.718 ops per second (49701 iters in 9.907) 2048: 926.741 ops per second (9439 iters in 10.185) 4096: 136.907 ops per second (1356 iters in 9.905)
• [rsa-pss-verify] 1024: 55386.995 ops per second (515463 iters in 9.307) 2048: 20812.506 ops per second (203252 iters in 9.766) 4096: 6976.815 ops per second (68965 iters in 9.885)
• [dsa-generate] 1024: 30.547 ops per second (518 iters in 16.957) 2048: 3.073 ops per second (26 iters in 8.460) 3072: 0.963 ops per second (7 iters in 7.273)
• [dsa-sign] 1024: 5169.869 ops per second (50761 iters in 9.819) 2048: 1037.131 ops per second (10778 iters in 10.392) 3072: 498.180 ops per second (5203 iters in 10.444)
• [dsa-verify] 1024: 5811.022 ops per second (56561 iters in 9.733) 2048: 1047.119 ops per second (10519 iters in 10.046) 3072: 502.466 ops per second (5080 iters in 10.110)
• [dh-secret] oakley5 (1536): 4032.563 ops per second (40160 iters in 9.959) oakley14 (2048): 2370.121 ops per second (23397 iters in 9.872) ffdhe2048: 2371.094 ops per second (23474 iters in 9.900) ffdhe3072: 959.168 ops per second (9328 iters in 9.725) ffdhe4096: 477.707 ops per second (4723 iters in 9.887) ffdhe6144: 232.990 ops per second (2318 iters in 9.949)
• [dh-share] oakley5 (1536): 4109.406 ops per second (42194 iters in 10.268) oakley14 (2048): 2361.098 ops per second (23180 iters in 9.817) ffdhe2048: 2362.707 ops per second (23463 iters in 9.931) ffdhe3072: 954.438 ops per second (9708 iters in 10.171) ffdhe4096: 462.487 ops per second (4770 iters in 10.314) ffdhe6144: 216.363 ops per second (2320 iters in 10.723)

compared to nocrypto 0.5.4:

• [aes-128-ecb] 16: 129.593907 MB/s (17113588 iters in 2.015 s) 64: 445.385674 MB/s (14718078 iters in 2.017 s) 256: 1401.391157 MB/s (11549531 iters in 2.012 s) 1024: 2595.914412 MB/s (5344235 iters in 2.010 s) 8192: 3501.195690 MB/s (901692 iters in 2.012 s)
• [aes-128-cbc-e] 16: 108.325512 MB/s (14606739 iters in 2.058 s) 64: 253.049301 MB/s (8601262 iters in 2.075 s) 256: 401.720298 MB/s (3339667 iters in 2.030 s) 1024: 489.085790 MB/s (960494 iters in 1.918 s) 8192: 517.197627 MB/s (133293 iters in 2.013 s)
• [aes-128-cbc-d] 16: 107.210047 MB/s (14669564 iters in 2.088 s) 64: 381.448329 MB/s (12527866 iters in 2.005 s) 256: 1240.270260 MB/s (9848820 iters in 1.939 s) 1024: 2312.995617 MB/s (4691696 iters in 1.981 s) 8192: 3133.530316 MB/s (810500 iters in 2.021 s)
• [aes-128-ctr] 16: 122.343292 MB/s (15659757 iters in 1.953 s) 64: 403.448633 MB/s (13233815 iters in 2.002 s) 256: 1248.728485 MB/s (10233026 iters in 2.001 s) 1024: 2114.395379 MB/s (4328489 iters in 1.999 s) 8192: 2877.065507 MB/s (738833 iters in 2.006 s)
• [aes-128-gcm] 16: 8.210968 MB/s (1082052 iters in 2.011 s) 64: 19.575635 MB/s (639463 iters in 1.994 s) 256: 29.907070 MB/s (245891 iters in 2.007 s) 1024: 29.262152 MB/s (57980 iters in 1.935 s) 8192: 29.581451 MB/s (7531 iters in 1.989 s)
• [aes-128-ccm] 16: 9.944615 MB/s (1292677 iters in 1.983 s) 64: 32.926246 MB/s (1063853 iters in 1.972 s) 256: 78.113169 MB/s (637793 iters in 1.993 s) 1024: 122.785527 MB/s (248373 iters in 1.975 s) 8192: 145.229084 MB/s (34938 iters in 1.879 s)
• [aes-192-ecb] 16: 119.679360 MB/s (16015977 iters in 2.042 s) 64: 411.271644 MB/s (13428694 iters in 1.993 s) 256: 1289.074612 MB/s (10622087 iters in 2.012 s) 1024: 2284.472462 MB/s (4634843 iters in 1.981 s) 8192: 3069.150001 MB/s (783834 iters in 1.995 s)
• [aes-256-ecb] 16: 118.242682 MB/s (15540220 iters in 2.005 s) 64: 394.463508 MB/s (12884896 iters in 1.994 s) 256: 1219.668891 MB/s (9902558 iters in 1.982 s) 1024: 2088.975918 MB/s (4237494 iters in 1.981 s) 8192: 2701.278566 MB/s (684954 iters in 1.981 s)
• [d3des-ecb] 16: 17.784525 MB/s (2330798 iters in 2.000 s) 64: 20.185889 MB/s (658308 iters in 1.990 s) 256: 21.036904 MB/s (171344 iters in 1.989 s) 1024: 21.195014 MB/s (42993 iters in 1.981 s) 8192: 21.450254 MB/s (5475 iters in 1.994 s)
• [fortuna] 16: 44.926539 MB/s (5858282 iters in 1.990 s) 64: 147.362742 MB/s (5285998 iters in 2.189 s) 256: 556.881662 MB/s (4692885 iters in 2.057 s) 1024: 1322.280478 MB/s (2796713 iters in 2.065 s) 8192: 2193.681448 MB/s (464696 iters in 1.655 s)
• [md5] 16: 47.291886 MB/s (5869457 iters in 1.894 s) 64: 140.406459 MB/s (4424445 iters in 1.923 s) 256: 298.883345 MB/s (2448636 iters in 2.000 s) 1024: 425.476508 MB/s (864106 iters in 1.983 s) 8192: 483.577246 MB/s (123914 iters in 2.002 s)
• [sha1] 16: 44.741101 MB/s (5791729 iters in 1.975 s) 64: 124.553309 MB/s (4048214 iters in 1.984 s) 256: 262.417489 MB/s (2131187 iters in 1.983 s) 1024: 373.496782 MB/s (761690 iters in 1.992 s) 8192: 438.060065 MB/s (112024 iters in 1.998 s)
• [sha256] 16: 28.598662 MB/s (3705886 iters in 1.977 s) 64: 73.185820 MB/s (2364851 iters in 1.972 s) 256: 139.469681 MB/s (1136138 iters in 1.989 s) 1024: 180.737238 MB/s (365880 iters in 1.977 s) 8192: 197.959258 MB/s (50160 iters in 1.980 s)
• [sha512] 16: 24.386785 MB/s (3171793 iters in 1.985 s) 64: 97.828998 MB/s (3192511 iters in 1.992 s) 256: 172.207635 MB/s (1401788 iters in 1.987 s) 1024: 258.055383 MB/s (523524 iters in 1.981 s) 8192: 302.046584 MB/s (76448 iters in 1.977 s)

mirage-entropy v0.5.1 (2020-02-24)

• use dune for building this package (#47 @hannesm)

mirage-entropy v0.5.0 (2019-11-01)

• Use mirage-runtime provided hooks (since 3.7.0), see mirage/mirage#1010 (#45 @samoht)
• Drop mirage-os-shim dependency (#45 @samoht)
• Raise minimum OCaml version to 4.06.0 (#46 @hannesm)

mirage-entropy 0.4.1 (2018-08-15)

• Aarch64 support (#39 by @reynir)

nocrypto v0.5.4 2017-01-31:

• Relicense from BSD2 to ISC.
• Support MirageOS 3.0.
• Replace OASIS with topkg.
• Stricter base64 decoding.

mirage-entropy 0.4.0 (2017-01-20)

• Compatibility with MirageOS 3 module types.
• Add a benchmark.
• Obsolete mirage-entropy-<BACKEND>; the repository now contains only mirage-entropy.
• Support Unix, Xen, and Solo5 backends.
• Prune oasis.
• Move noalloc to 4.03-style annotations

nocrypto v0.5.3 2016-03-21:

• Move from Camlp4 to PPX.
• Tweaked the supporting Cstruct module's API.
• Dh.shared returns option instead of throwing if the public message is degenerate.
• Base64.decode returns option instead of throwing

nocrypto 0.5.2 2015-12-03:

• Avoid including intrinsics-related headers if SSE/AES-NI is disabled.
• Replace opam variable nocrypto-inhibit-modernity with $NOCRYPTO_NO_ACCEL.
• Remove cstruct equality.

nocrypto 0.5.1 2015-07-07:

• Disable AES-NI if not supported in the ./configure step.
• Support the global opam variable nocrypto-inhibit-modernity.

nocrypto 0.5.0 2015-07-02:

• Support for AES-NI and SSE2.
• Support RSA-OAEP and RSA-PSS.
• Drop ctypes for internal C calls.
• Generate smaller secret exponents for DH, making operations on large groups much faster.
• Support dynamic switching of RNG algorithms and decouple Rng from Fortuna.
• Module for injectring entropy into RNG on pure Unix (optional).
• Nocrypto_entropy_lwt.initialize no longer needs to be synchronized on.
• Renamed module signatures and modules containing only signatures from T to S.
• Changes to CTR, CBC, Rsa and Dh APIs.

mirage-entropy 0.3.0 (2015-05-02)

• Remove mirage-entropy-unix from the repository; it now only contains mirage-entropy-xen.
• Add internal entropy harvesting via timing and CPU RNG if available.
• Temporarily disable xentropyd.
• The API is no longer V1.ENTROPY compatible.

nocrypto 0.4.0 2015-05-02:

• Module for injecting entropy into RNG on Unix/Lwt (optional).
• Module for injecting entropy into RNG on Mirage/Xen (optional; depends on mirage-entropy-xen).
• API changes in Rng.
• Do not 0-pad DH public and shared representations.
• More named DH groups.

mirage-entropy 0.2.0 (09-Mar-2015)

• Do not wrap Entropy_unix in a functor as it is meant to be used directly.
• Xen: read entropy from a Xen PV device. This is implemented by the xentropyd daemon.

nocrypto 0.3.1 2015-02-01:

• Support for Mirage/Xen (contributed by Thomas Leonard talex5@gmail.com).

nocrypto 0.3.0 2014-12-21:

• Removed ad-hoc key marshalling functions as key material typically comes non-trivially encoded anyways.
• Changed how module interfaces for the packed module are handled: module type of constructs are gone.
• More consistent errors in Rsa.
• Small API breakage here and there.

nocrypto 0.2.2 2014-11-04:

• Replaced hashing sources with the ones from hs-cryptohash (https://github.com/vincenthz/hs-cryptohash) by Vincent Hanquez.
• Renamed various symbols likely to conflict with other crypto libraries.

nocrypto 0.2.0 2014-10-30:

• DSA (initial version contributed by Hannes Mehnert hannes@mehnert.org).
• CCM mode for AES (contributed by Hannes Mehnert hannes@mehnert.org).
• Switched from hand written stubs to ctypes for intefacing with the C code.
• Packed the module to avoid clobbering global namespace; some modules renamed.
• Various bugfixes and improvements.

nocrypto 0.1.0 2014-07-08:

• Initial (beta) release.

mirage-entropy 0.1.6 (06-July-2014)

• Rework the module to be event-driven, more in line with entropy gathering.

mirage-entropy 0.1.5 (06-July-2014)

• Guarantee that all of the required entropy is read on Unix.
• Add a Entropy_xen_weak that uses the builtin Random.self_init as a measure of last-resort.

mirage-entropy 0.1.4 (04-July-2014)

• provide Mirage 1.2.0 interfaces (V1_LWT.ENTROPY).
• name modules Entropy_xen and Entropy_unix to not clash.

mirage-entropy 0.1.3 (03-July-2014)

• Unbreak build: ocamlfind wasn't able to locate the package previously.

mirage-entropy 0.1.2 (03-July-2014)

• Use /dev/urandom instead of /dev/random (for non-blocking behaviour).

mirage-entropy 0.1.1 (03-July-2014)

• Use Makefile instead of oasis as build system.

mirage-entropy 0.1.0 (03-July-2014)

• Initial release: on Unix, use /dev/random; on XEN, error out.