Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Cryptographic API.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * RIPEMD-128 - RACE Integrity Primitives Evaluation Message Digest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Based on the reference implementation by Antoon Bosselaers, ESAT-COSIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * Copyright (c) 2008 Adrian-Ken Rueegsegger <ken@codelabs.ch>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <crypto/internal/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <asm/byteorder.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "ripemd.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) struct rmd128_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	u64 byte_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	u32 state[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	__le32 buffer[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define K1  RMD_K1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define K2  RMD_K2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define K3  RMD_K3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define K4  RMD_K4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define KK1 RMD_K6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define KK2 RMD_K7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define KK3 RMD_K8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define KK4 RMD_K1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define F1(x, y, z) (x ^ y ^ z)		/* XOR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define F2(x, y, z) (z ^ (x & (y ^ z)))	/* x ? y : z */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define F3(x, y, z) ((x | ~y) ^ z)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define F4(x, y, z) (y ^ (z & (x ^ y)))	/* z ? x : y */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define ROUND(a, b, c, d, f, k, x, s)  { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	(a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k);	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	(a) = rol32((a), (s)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static void rmd128_transform(u32 *state, const __le32 *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	u32 aa, bb, cc, dd, aaa, bbb, ccc, ddd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	/* Initialize left lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	aa = state[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	bb = state[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	cc = state[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	dd = state[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	/* Initialize right lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	aaa = state[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	bbb = state[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	ccc = state[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	ddd = state[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	/* round 1: left lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	ROUND(aa, bb, cc, dd, F1, K1, in[0],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	ROUND(dd, aa, bb, cc, F1, K1, in[1],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	ROUND(cc, dd, aa, bb, F1, K1, in[2],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	ROUND(bb, cc, dd, aa, F1, K1, in[3],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	ROUND(aa, bb, cc, dd, F1, K1, in[4],   5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	ROUND(dd, aa, bb, cc, F1, K1, in[5],   8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	ROUND(cc, dd, aa, bb, F1, K1, in[6],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	ROUND(bb, cc, dd, aa, F1, K1, in[7],   9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	ROUND(aa, bb, cc, dd, F1, K1, in[8],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	ROUND(dd, aa, bb, cc, F1, K1, in[9],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	ROUND(cc, dd, aa, bb, F1, K1, in[10], 14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	ROUND(bb, cc, dd, aa, F1, K1, in[11], 15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	ROUND(aa, bb, cc, dd, F1, K1, in[12],  6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	ROUND(dd, aa, bb, cc, F1, K1, in[13],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	ROUND(cc, dd, aa, bb, F1, K1, in[14],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	ROUND(bb, cc, dd, aa, F1, K1, in[15],  8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	/* round 2: left lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	ROUND(aa, bb, cc, dd, F2, K2, in[7],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	ROUND(dd, aa, bb, cc, F2, K2, in[4],   6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	ROUND(cc, dd, aa, bb, F2, K2, in[13],  8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	ROUND(bb, cc, dd, aa, F2, K2, in[1],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	ROUND(aa, bb, cc, dd, F2, K2, in[10], 11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	ROUND(dd, aa, bb, cc, F2, K2, in[6],   9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	ROUND(cc, dd, aa, bb, F2, K2, in[15],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	ROUND(bb, cc, dd, aa, F2, K2, in[3],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	ROUND(aa, bb, cc, dd, F2, K2, in[12],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	ROUND(dd, aa, bb, cc, F2, K2, in[0],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	ROUND(cc, dd, aa, bb, F2, K2, in[9],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	ROUND(bb, cc, dd, aa, F2, K2, in[5],   9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	ROUND(aa, bb, cc, dd, F2, K2, in[2],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	ROUND(dd, aa, bb, cc, F2, K2, in[14],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	ROUND(cc, dd, aa, bb, F2, K2, in[11], 13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	ROUND(bb, cc, dd, aa, F2, K2, in[8],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	/* round 3: left lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	ROUND(aa, bb, cc, dd, F3, K3, in[3],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	ROUND(dd, aa, bb, cc, F3, K3, in[10], 13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	ROUND(cc, dd, aa, bb, F3, K3, in[14],  6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	ROUND(bb, cc, dd, aa, F3, K3, in[4],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	ROUND(aa, bb, cc, dd, F3, K3, in[9],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	ROUND(dd, aa, bb, cc, F3, K3, in[15],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	ROUND(cc, dd, aa, bb, F3, K3, in[8],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	ROUND(bb, cc, dd, aa, F3, K3, in[1],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	ROUND(aa, bb, cc, dd, F3, K3, in[2],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	ROUND(dd, aa, bb, cc, F3, K3, in[7],   8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	ROUND(cc, dd, aa, bb, F3, K3, in[0],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	ROUND(bb, cc, dd, aa, F3, K3, in[6],   6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	ROUND(aa, bb, cc, dd, F3, K3, in[13],  5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	ROUND(dd, aa, bb, cc, F3, K3, in[11], 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	ROUND(cc, dd, aa, bb, F3, K3, in[5],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	ROUND(bb, cc, dd, aa, F3, K3, in[12],  5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	/* round 4: left lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	ROUND(aa, bb, cc, dd, F4, K4, in[1],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	ROUND(dd, aa, bb, cc, F4, K4, in[9],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	ROUND(cc, dd, aa, bb, F4, K4, in[11], 14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	ROUND(bb, cc, dd, aa, F4, K4, in[10], 15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	ROUND(aa, bb, cc, dd, F4, K4, in[0],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	ROUND(dd, aa, bb, cc, F4, K4, in[8],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	ROUND(cc, dd, aa, bb, F4, K4, in[12],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	ROUND(bb, cc, dd, aa, F4, K4, in[4],   8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	ROUND(aa, bb, cc, dd, F4, K4, in[13],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	ROUND(dd, aa, bb, cc, F4, K4, in[3],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	ROUND(cc, dd, aa, bb, F4, K4, in[7],   5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	ROUND(bb, cc, dd, aa, F4, K4, in[15],  6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	ROUND(aa, bb, cc, dd, F4, K4, in[14],  8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	ROUND(dd, aa, bb, cc, F4, K4, in[5],   6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	ROUND(cc, dd, aa, bb, F4, K4, in[6],   5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	ROUND(bb, cc, dd, aa, F4, K4, in[2],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	/* round 1: right lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[5],   8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[14],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[7],   9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[0],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[9],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[2],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[11], 15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[4],   5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[13],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[6],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[15],  8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[8],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	ROUND(aaa, bbb, ccc, ddd, F4, KK1, in[1],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	ROUND(ddd, aaa, bbb, ccc, F4, KK1, in[10], 14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	ROUND(ccc, ddd, aaa, bbb, F4, KK1, in[3],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	ROUND(bbb, ccc, ddd, aaa, F4, KK1, in[12],  6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	/* round 2: right lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[6],   9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[11], 13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[3],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[7],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[0],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[13],  8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[5],   9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[10], 11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[14],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[15],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[8],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[12],  7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	ROUND(aaa, bbb, ccc, ddd, F3, KK2, in[4],   6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	ROUND(ddd, aaa, bbb, ccc, F3, KK2, in[9],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	ROUND(ccc, ddd, aaa, bbb, F3, KK2, in[1],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	ROUND(bbb, ccc, ddd, aaa, F3, KK2, in[2],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	/* round 3: right lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[15],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[5],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[1],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[3],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[7],   8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[14],  6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[6],   6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[9],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[11], 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[8],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[12],  5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[2],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	ROUND(aaa, bbb, ccc, ddd, F2, KK3, in[10], 13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	ROUND(ddd, aaa, bbb, ccc, F2, KK3, in[0],  13);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	ROUND(ccc, ddd, aaa, bbb, F2, KK3, in[4],   7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	ROUND(bbb, ccc, ddd, aaa, F2, KK3, in[13],  5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	/* round 4: right lane */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[8],  15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[6],   5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[4],   8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[1],  11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[3],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[11], 14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[15],  6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[0],  14);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[5],   6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[12],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[2],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[13],  9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	ROUND(aaa, bbb, ccc, ddd, F1, KK4, in[9],  12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	ROUND(ddd, aaa, bbb, ccc, F1, KK4, in[7],   5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	ROUND(ccc, ddd, aaa, bbb, F1, KK4, in[10], 15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	ROUND(bbb, ccc, ddd, aaa, F1, KK4, in[14],  8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	/* combine results */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	ddd += cc + state[1];		/* final result for state[0] */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	state[1] = state[2] + dd + aaa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	state[2] = state[3] + aa + bbb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	state[3] = state[0] + bb + ccc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	state[0] = ddd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static int rmd128_init(struct shash_desc *desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	struct rmd128_ctx *rctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	rctx->byte_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	rctx->state[0] = RMD_H0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	rctx->state[1] = RMD_H1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	rctx->state[2] = RMD_H2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	rctx->state[3] = RMD_H3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	memset(rctx->buffer, 0, sizeof(rctx->buffer));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static int rmd128_update(struct shash_desc *desc, const u8 *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			 unsigned int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	struct rmd128_ctx *rctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	const u32 avail = sizeof(rctx->buffer) - (rctx->byte_count & 0x3f);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	rctx->byte_count += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	/* Enough space in buffer? If so copy and we're done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	if (avail > len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		       data, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	       data, avail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	rmd128_transform(rctx->state, rctx->buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	data += avail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	len -= avail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	while (len >= sizeof(rctx->buffer)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		memcpy(rctx->buffer, data, sizeof(rctx->buffer));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		rmd128_transform(rctx->state, rctx->buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		data += sizeof(rctx->buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		len -= sizeof(rctx->buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	memcpy(rctx->buffer, data, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /* Add padding and return the message digest. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static int rmd128_final(struct shash_desc *desc, u8 *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	struct rmd128_ctx *rctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	u32 i, index, padlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	__le64 bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	__le32 *dst = (__le32 *)out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	static const u8 padding[64] = { 0x80, };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	bits = cpu_to_le64(rctx->byte_count << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	/* Pad out to 56 mod 64 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	index = rctx->byte_count & 0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	padlen = (index < 56) ? (56 - index) : ((64+56) - index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	rmd128_update(desc, padding, padlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	/* Append length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	rmd128_update(desc, (const u8 *)&bits, sizeof(bits));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	/* Store state in digest */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	for (i = 0; i < 4; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		dst[i] = cpu_to_le32p(&rctx->state[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	/* Wipe context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	memset(rctx, 0, sizeof(*rctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) static struct shash_alg alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	.digestsize	=	RMD128_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	.init		=	rmd128_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	.update		=	rmd128_update,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	.final		=	rmd128_final,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	.descsize	=	sizeof(struct rmd128_ctx),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	.base		=	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		.cra_name	 =	"rmd128",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		.cra_driver_name =	"rmd128-generic",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		.cra_blocksize	 =	RMD128_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 		.cra_module	 =	THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) static int __init rmd128_mod_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	return crypto_register_shash(&alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) static void __exit rmd128_mod_fini(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	crypto_unregister_shash(&alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) subsys_initcall(rmd128_mod_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) module_exit(rmd128_mod_fini);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) MODULE_DESCRIPTION("RIPEMD-128 Message Digest");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) MODULE_ALIAS_CRYPTO("rmd128");