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09d14a0b6c
The Argon2i/id is a password hashing function that won Password Hashing Competiton. It will be (optionally) used in LUKS2 for passworrd-based key derivation. We have to bundle code for now (similar PBKDF2 years ago) because there is yet no usable implementation in common crypto libraries. (Once there is native implementation, cryptsetup will switch to the crypto library version.) For now, we use reference (not optimized but portable) implementation. This patch contains bundled Argon2 algorithm library copied from https://github.com/P-H-C/phc-winner-argon2 For more info see Password Hashing Competition site: https://password-hashing.net/ and draft of RFC document https://datatracker.ietf.org/doc/draft-irtf-cfrg-argon2/ Signed-off-by: Milan Broz <gmazyland@gmail.com>
57 lines
2.7 KiB
C
57 lines
2.7 KiB
C
/*
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* Argon2 reference source code package - reference C implementations
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*
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* Copyright 2015
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* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
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*
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* You may use this work under the terms of a Creative Commons CC0 1.0
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* License/Waiver or the Apache Public License 2.0, at your option. The terms of
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* these licenses can be found at:
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*
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* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
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* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
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*
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* You should have received a copy of both of these licenses along with this
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* software. If not, they may be obtained at the above URLs.
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*/
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#ifndef BLAKE_ROUND_MKA_H
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#define BLAKE_ROUND_MKA_H
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#include "blake2.h"
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#include "blake2-impl.h"
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/*designed by the Lyra PHC team */
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static BLAKE2_INLINE uint64_t fBlaMka(uint64_t x, uint64_t y) {
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const uint64_t m = UINT64_C(0xFFFFFFFF);
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const uint64_t xy = (x & m) * (y & m);
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return x + y + 2 * xy;
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}
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#define G(a, b, c, d) \
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do { \
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a = fBlaMka(a, b); \
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d = rotr64(d ^ a, 32); \
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c = fBlaMka(c, d); \
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b = rotr64(b ^ c, 24); \
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a = fBlaMka(a, b); \
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d = rotr64(d ^ a, 16); \
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c = fBlaMka(c, d); \
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b = rotr64(b ^ c, 63); \
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} while ((void)0, 0)
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#define BLAKE2_ROUND_NOMSG(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, \
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v12, v13, v14, v15) \
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do { \
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G(v0, v4, v8, v12); \
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G(v1, v5, v9, v13); \
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G(v2, v6, v10, v14); \
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G(v3, v7, v11, v15); \
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G(v0, v5, v10, v15); \
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G(v1, v6, v11, v12); \
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G(v2, v7, v8, v13); \
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G(v3, v4, v9, v14); \
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} while ((void)0, 0)
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#endif
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