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Fri, 21 Apr 2023 08:09:23 +0200 (CEST) From: Stephan =?iso-8859-1?q?M=FCller?= To: linux-crypto@vger.kernel.org, herbert@gondor.apana.org.au Cc: Vladis Dronov , Marcelo Cerri Subject: [PATCH v3 0/2] crypto: jitter - SHA-3 conditioner and test interface Date: Fri, 21 Apr 2023 08:07:39 +0200 Message-ID: <2687238.mvXUDI8C0e@positron.chronox.de> In-Reply-To: <4825604.31r3eYUQgx@positron.chronox.de> References: <2684670.mvXUDI8C0e@positron.chronox.de> <4825604.31r3eYUQgx@positron.chronox.de> MIME-Version: 1.0 Autocrypt: addr=smueller@chronox.de; keydata= mQENBFqo+vgBCACp9hezmvJ4eeZv4PkyoMxGpXHN4Ox2+aofXxMv/yQ6oyZ69xu0U0yFcEcSWbe 4qhxB+nlOvSBRJ8ohEU3hlGLrAKJwltHVzeO6nCby/T57b6SITCbcnZGIgKwX4CrJYmfQ4svvMG NDOORPk6SFkK7hhe1cWJb+Gc5czw3wy7By5c1OtlnbmGB4k5+p7Mbi+rui/vLTKv7FKY5t2CpQo OxptxFc/yq9sMdBnsjvhcCHcl1kpnQPTMppztWMj4Nkkd+Trvpym0WZ1px6+3kxhMn6LNYytHTC mf/qyf1+1/PIpyEXvx66hxeN+fN/7R+0iYCisv3JTtfNkCV3QjGdKqT3ABEBAAG0HVN0ZXBoYW4 gTXVlbGxlciA8c21AZXBlcm0uZGU+iQFOBBMBCAA4FiEEO8xD1NLIfReEtp7kQh7pNjJqwVsFAl qo/M8CGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQQh7pNjJqwVsV8gf+OcAaiSqhn0mYk fC7Fe48n9InAkHiSQ/T7eN+wWYLYMWGG0N2z5gBnNfdc4oFVL+ngye4C3bm98Iu7WnSl0CTOe1p KGFJg3Y7YzSa5/FzS9nKsg6iXpNWL5nSYyz8T9Q0KGKNlAiyQEGkt8y05m8hNsvqkgDb923/RFf UYX4mTUXJ1vk/6SFCA/72JQN7PpwMgGir7FNybuuDUuDLDgQ+BZHhJlW91XE2nwxUo9IrJ2FeT8 GgFKzX8A//peRZTSSeatJBr0HRKfTrKYw3lf897sddUjyQU1nDYv9EMLBvkzuE+gwUakt2rOcpR +4Fn5jkQbN4vpfGPnybMAMMxW6GIrQfU3RlcGhhbiBNdWVsbGVyIDxzbUBjaHJvbm94LmRlPokB TgQTAQgAOBYhBDvMQ9TSyH0XhLae5EIe6TYyasFbBQJaqPzEAhsDBQsJCAcCBhUKCQgLAgQWAgM BAh4BAheAAAoJEEIe6TYyasFbsqUH/2euuyRj8b1xuapmrNUuU4atn9FN6XE1cGzXYPHNEUGBiM kInPwZ/PFurrni7S22cMN+IuqmQzLo40izSjXhRJAa165GoJSrtf7S6iwry/k1S9nY2Vc/dxW6q nFq7mJLAs0JWHOfhRe1caMb7P95B+O5B35023zYr9ApdQ4+Lyk+xx1+i++EOxbTJVqLZEF1EGmO Wh3ERcGyT05+1LQ84yDSCUxZVZFrbA2Mtg8cdyvu68urvKiOCHzDH/xRRhFxUz0+dCOGBFSgSfK I9cgS009BdH3Zyg795QV6wfhNas4PaNPN5ArMAvgPH1BxtkgyMjUSyLQQDrmuqHnLzExEQfG0JV N0ZXBoYW4gTXVlbGxlciA8c211ZWxsZXJAY2hyb25veC5kZT6JAU4EEwEIADgWIQQ7zEPU0sh9F 4S2nuRCHuk2MmrBWwUCWqj6+AIbAwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgAAKCRBCHuk2MmrB WxVrB/wKYSuURgwKs2pJ2kmLIp34StoreNqe6cdIF7f7e8o7NaT528hFAVuDSTUyjXO+idbC0P+ zu9y2SZfQhc4xbD+Zf0QngX7/sqIWVeiXJa6uR/qrtJF7OBEvlGkxcAwkC0d/Ts68ps4QbZ7s5q WBJJY4LmnytqvXGb63/fOTwImYiY3tKCOSCM2YQRFt6BO71t8tu/4NLk0KSW9OHa9nfcDqI18aV ylGMu5zNjYqjJpT/be1UpyZo6I/7p0yAQfGJ5YBiN4S264mdFN7jOvxZE3NKXhL4QMt34hOSWPO pW8ZGEo1hKjEdHFvYowPpcoOFicP+zvxdpMtUTEkppREN2a+uQENBFqo+vgBCACiLHsDAX7C0l0 sB8DhVvTDpC2CyaeuNW9GZ1Qqkenh3Y5KnYnh5Gg5b0jubSkauJ75YEOsOeClWuebL3i76kARC8 Gfo727wSLvfIAcWhO1ws6j1Utc8s1HNO0+vcGC9EEkn7LzO5piEUPkentjrSF7clPsXziW4IJq/ z3DYZQkVPk7PSw6r0jXWR/p6sj4aXxslIiDgFJZyopki7Sl2805JYcvKKC6OWTyPHJMlnu9dNxJ viAentAUwzHxNqmvYjlkqBr/sFnjC9kydElecVm4YQh3TC6yt5h49AslAVlFYfwQwcio1LNWySc lWHbDZhcVZJZZi4++gpFmmg1AjyfLABEBAAGJATYEGAEIACAWIQQ7zEPU0sh9F4S2nuRCHuk2Mm rBWwUCWqj6+AIbIAAKCRBCHuk2MmrBWxPCCACQGQu5eOcH9qsqSOO64n+xUX7PG96S8s2JolN3F t2YWKUzjVHLu5jxznmDwx+GJ3P7thrzW+V5XdDcXgSAXW793TaJ/XMM0jEG+jgvuhE65JfWCK+8 sumrO24M1KnVQigxrMpG5FT7ndpBRGbs059QSqoMVN4x2dvaP81/+u0sQQ2EGrhPFB2aOA3s7bb Wy8xGVIPLcCqByPLbxbHzaU/dkiutSaYqmzdgrTdcuESSbK4qEv3g1i2Bw5kdqeY9mM96SUL8cG UokqFtVP7b2mSfm51iNqlO3nsfwpRnl/IlRPThWLhM7/qr49GdWYfQsK4hbw0fo09QFCXN53MPL hLwuQENBFqo+vgBCAClaPqyK/PUbf7wxTfu3ZBAgaszL98Uf1UHTekRNdYO7FP1dWWT4SebIgL8 wwtWZEqI1pydyvk6DoNF6CfRFq1lCo9QA4Rms7Qx3cdXu1G47ZtQvOqxvO4SPvi7lg3PgnuiHDU STwo5a8+ojxbLzs5xExbx4RDGtykBoaOoLYeenn92AQ//gN6wCDjEjwP2u39xkWXlokZGrwn3yt FE20rUTNCSLxdmoCr1faHzKmvql95wmA7ahg5s2vM9/95W4G71lJhy2crkZIAH0fx3iOUbDmlZ3 T3UvoLuyMToUyaQv5lo0lV2KJOBGhjnAfmykHsxQu0RygiNwvO3TGjpaeB5ABEBAAGJATYEGAEI ACAWIQQ7zEPU0sh9F4S2nuRCHuk2MmrBWwUCWqj6+AIbDAAKCRBCHuk2MmrBW5Y4B/oCLcRZyN0 ETep2JK5CplZHHRN27DhL4KfnahZv872vq3c83hXDDIkCm/0/uDElso+cavceg5pIsoP2bvEeSJ jGMJ5PVdCYOx6r/Fv/tkr46muOvaLdgnphv/CIA+IRykwyzXe3bsucHC4a1fnSoTMnV1XhsIh8z WTINVVO8+qdNEv3ix2nP5yArexUGzmJV0HIkKm59wCLz4FpWR+QZru0i8kJNuFrdnDIP0wxDjiV BifPhiegBv+/z2DOj8D9EI48KagdQP7MY7q/u1n3+pGTwa+F1hoGo5IOU5MnwVv7UHiW1MSNQ2/ kBFBHm+xdudNab2U0OpfqrWerOw3WcGd2 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The patch set replaces the LFSR conditioning function of the Jitter RNG with SHA-3 256. This change requires also a new test interface to analyze the raw unconditioned noise data. Albeit the test interface can be used directly with dd, a small helper tool is provided at [1] which can be used to perform the collection of raw entropy. The analysis of the data can be done with your favorite tool. Or you may use the helper in [2] which uses the NIST SP800-90B tool for entropy rate measurement. [1] https://github.com/smuellerDD/jitterentropy-library/tree/master/tests/raw-entropy/recording_runtime_kernelspace [2] https://github.com/smuellerDD/jitterentropy-library/tree/master/tests/raw-entropy/validation-runtime-kernel Changes v3: - fix jent_kcapi_init: error code for jent_entropy_collector_alloc now properly cleans up the state - fix jent_kcapi_init: initialize lock at the beginning as it is used in error code path function jent_kcapi_cleanup - editorial change: update description in MODULE_PARM_DESC in patch 0002 Changes v2: - fix use-after-free by switching shash_desc_zero and crypto_free_shash in jent_mod_init reported by kernel-test-robot Stephan Mueller (2): crypto: jitter - replace LFSR with SHA3-256 crypto: jitter - add interface for gathering of raw entropy crypto/Kconfig | 21 +++ crypto/Makefile | 1 + crypto/jitterentropy-kcapi.c | 190 ++++++++++++++++++--- crypto/jitterentropy-testing.c | 294 +++++++++++++++++++++++++++++++++ crypto/jitterentropy.c | 145 ++++++---------- crypto/jitterentropy.h | 20 ++- 6 files changed, 551 insertions(+), 120 deletions(-) create mode 100644 crypto/jitterentropy-testing.c