/*
 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/*
 * RIPEMD160 low level APIs are deprecated for public use, but still ok for
 * internal use.
 */
#include "internal/deprecated.h"

#include <stdio.h>
#include "rmd_local.h"
#include <openssl/opensslv.h>

#ifdef RMD160_ASM
void ripemd160_block_x86(RIPEMD160_CTX *c, unsigned long *p, size_t num);
# define ripemd160_block ripemd160_block_x86
#else
void ripemd160_block(RIPEMD160_CTX *c, unsigned long *p, size_t num);
#endif

int RIPEMD160_Init(RIPEMD160_CTX *c)
{
    memset(c, 0, sizeof(*c));
    c->A = RIPEMD160_A;
    c->B = RIPEMD160_B;
    c->C = RIPEMD160_C;
    c->D = RIPEMD160_D;
    c->E = RIPEMD160_E;
    return 1;
}

#ifndef ripemd160_block_data_order
# ifdef X
#  undef X
# endif
void ripemd160_block_data_order(RIPEMD160_CTX *ctx, const void *p, size_t num)
{
    const unsigned char *data = p;
    register unsigned MD32_REG_T A, B, C, D, E;
    unsigned MD32_REG_T a, b, c, d, e, l;
# ifndef MD32_XARRAY
    /* See comment in crypto/sha/sha_local.h for details. */
    unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
        XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15;
#  define X(i)   XX##i
# else
    RIPEMD160_LONG XX[16];
#  define X(i)   XX[i]
# endif

    for (; num--;) {

        A = ctx->A;
        B = ctx->B;
        C = ctx->C;
        D = ctx->D;
        E = ctx->E;

        (void)HOST_c2l(data, l);
        X(0) = l;
        (void)HOST_c2l(data, l);
        X(1) = l;
        RIP1(A, B, C, D, E, WL00, SL00);
        (void)HOST_c2l(data, l);
        X(2) = l;
        RIP1(E, A, B, C, D, WL01, SL01);
        (void)HOST_c2l(data, l);
        X(3) = l;
        RIP1(D, E, A, B, C, WL02, SL02);
        (void)HOST_c2l(data, l);
        X(4) = l;
        RIP1(C, D, E, A, B, WL03, SL03);
        (void)HOST_c2l(data, l);
        X(5) = l;
        RIP1(B, C, D, E, A, WL04, SL04);
        (void)HOST_c2l(data, l);
        X(6) = l;
        RIP1(A, B, C, D, E, WL05, SL05);
        (void)HOST_c2l(data, l);
        X(7) = l;
        RIP1(E, A, B, C, D, WL06, SL06);
        (void)HOST_c2l(data, l);
        X(8) = l;
        RIP1(D, E, A, B, C, WL07, SL07);
        (void)HOST_c2l(data, l);
        X(9) = l;
        RIP1(C, D, E, A, B, WL08, SL08);
        (void)HOST_c2l(data, l);
        X(10) = l;
        RIP1(B, C, D, E, A, WL09, SL09);
        (void)HOST_c2l(data, l);
        X(11) = l;
        RIP1(A, B, C, D, E, WL10, SL10);
        (void)HOST_c2l(data, l);
        X(12) = l;
        RIP1(E, A, B, C, D, WL11, SL11);
        (void)HOST_c2l(data, l);
        X(13) = l;
        RIP1(D, E, A, B, C, WL12, SL12);
        (void)HOST_c2l(data, l);
        X(14) = l;
        RIP1(C, D, E, A, B, WL13, SL13);
        (void)HOST_c2l(data, l);
        X(15) = l;
        RIP1(B, C, D, E, A, WL14, SL14);
        RIP1(A, B, C, D, E, WL15, SL15);

        RIP2(E, A, B, C, D, WL16, SL16, KL1);
        RIP2(D, E, A, B, C, WL17, SL17, KL1);
        RIP2(C, D, E, A, B, WL18, SL18, KL1);
        RIP2(B, C, D, E, A, WL19, SL19, KL1);
        RIP2(A, B, C, D, E, WL20, SL20, KL1);
        RIP2(E, A, B, C, D, WL21, SL21, KL1);
        RIP2(D, E, A, B, C, WL22, SL22, KL1);
        RIP2(C, D, E, A, B, WL23, SL23, KL1);
        RIP2(B, C, D, E, A, WL24, SL24, KL1);
        RIP2(A, B, C, D, E, WL25, SL25, KL1);
        RIP2(E, A, B, C, D, WL26, SL26, KL1);
        RIP2(D, E, A, B, C, WL27, SL27, KL1);
        RIP2(C, D, E, A, B, WL28, SL28, KL1);
        RIP2(B, C, D, E, A, WL29, SL29, KL1);
        RIP2(A, B, C, D, E, WL30, SL30, KL1);
        RIP2(E, A, B, C, D, WL31, SL31, KL1);

        RIP3(D, E, A, B, C, WL32, SL32, KL2);
        RIP3(C, D, E, A, B, WL33, SL33, KL2);
        RIP3(B, C, D, E, A, WL34, SL34, KL2);
        RIP3(A, B, C, D, E, WL35, SL35, KL2);
        RIP3(E, A, B, C, D, WL36, SL36, KL2);
        RIP3(D, E, A, B, C, WL37, SL37, KL2);
        RIP3(C, D, E, A, B, WL38, SL38, KL2);
        RIP3(B, C, D, E, A, WL39, SL39, KL2);
        RIP3(A, B, C, D, E, WL40, SL40, KL2);
        RIP3(E, A, B, C, D, WL41, SL41, KL2);
        RIP3(D, E, A, B, C, WL42, SL42, KL2);
        RIP3(C, D, E, A, B, WL43, SL43, KL2);
        RIP3(B, C, D, E, A, WL44, SL44, KL2);
        RIP3(A, B, C, D, E, WL45, SL45, KL2);
        RIP3(E, A, B, C, D, WL46, SL46, KL2);
        RIP3(D, E, A, B, C, WL47, SL47, KL2);

        RIP4(C, D, E, A, B, WL48, SL48, KL3);
        RIP4(B, C, D, E, A, WL49, SL49, KL3);
        RIP4(A, B, C, D, E, WL50, SL50, KL3);
        RIP4(E, A, B, C, D, WL51, SL51, KL3);
        RIP4(D, E, A, B, C, WL52, SL52, KL3);
        RIP4(C, D, E, A, B, WL53, SL53, KL3);
        RIP4(B, C, D, E, A, WL54, SL54, KL3);
        RIP4(A, B, C, D, E, WL55, SL55, KL3);
        RIP4(E, A, B, C, D, WL56, SL56, KL3);
        RIP4(D, E, A, B, C, WL57, SL57, KL3);
        RIP4(C, D, E, A, B, WL58, SL58, KL3);
        RIP4(B, C, D, E, A, WL59, SL59, KL3);
        RIP4(A, B, C, D, E, WL60, SL60, KL3);
        RIP4(E, A, B, C, D, WL61, SL61, KL3);
        RIP4(D, E, A, B, C, WL62, SL62, KL3);
        RIP4(C, D, E, A, B, WL63, SL63, KL3);

        RIP5(B, C, D, E, A, WL64, SL64, KL4);
        RIP5(A, B, C, D, E, WL65, SL65, KL4);
        RIP5(E, A, B, C, D, WL66, SL66, KL4);
        RIP5(D, E, A, B, C, WL67, SL67, KL4);
        RIP5(C, D, E, A, B, WL68, SL68, KL4);
        RIP5(B, C, D, E, A, WL69, SL69, KL4);
        RIP5(A, B, C, D, E, WL70, SL70, KL4);
        RIP5(E, A, B, C, D, WL71, SL71, KL4);
        RIP5(D, E, A, B, C, WL72, SL72, KL4);
        RIP5(C, D, E, A, B, WL73, SL73, KL4);
        RIP5(B, C, D, E, A, WL74, SL74, KL4);
        RIP5(A, B, C, D, E, WL75, SL75, KL4);
        RIP5(E, A, B, C, D, WL76, SL76, KL4);
        RIP5(D, E, A, B, C, WL77, SL77, KL4);
        RIP5(C, D, E, A, B, WL78, SL78, KL4);
        RIP5(B, C, D, E, A, WL79, SL79, KL4);

        a = A;
        b = B;
        c = C;
        d = D;
        e = E;
        /* Do other half */
        A = ctx->A;
        B = ctx->B;
        C = ctx->C;
        D = ctx->D;
        E = ctx->E;

        RIP5(A, B, C, D, E, WR00, SR00, KR0);
        RIP5(E, A, B, C, D, WR01, SR01, KR0);
        RIP5(D, E, A, B, C, WR02, SR02, KR0);
        RIP5(C, D, E, A, B, WR03, SR03, KR0);
        RIP5(B, C, D, E, A, WR04, SR04, KR0);
        RIP5(A, B, C, D, E, WR05, SR05, KR0);
        RIP5(E, A, B, C, D, WR06, SR06, KR0);
        RIP5(D, E, A, B, C, WR07, SR07, KR0);
        RIP5(C, D, E, A, B, WR08, SR08, KR0);
        RIP5(B, C, D, E, A, WR09, SR09, KR0);
        RIP5(A, B, C, D, E, WR10, SR10, KR0);
        RIP5(E, A, B, C, D, WR11, SR11, KR0);
        RIP5(D, E, A, B, C, WR12, SR12, KR0);
        RIP5(C, D, E, A, B, WR13, SR13, KR0);
        RIP5(B, C, D, E, A, WR14, SR14, KR0);
        RIP5(A, B, C, D, E, WR15, SR15, KR0);

        RIP4(E, A, B, C, D, WR16, SR16, KR1);
        RIP4(D, E, A, B, C, WR17, SR17, KR1);
        RIP4(C, D, E, A, B, WR18, SR18, KR1);
        RIP4(B, C, D, E, A, WR19, SR19, KR1);
        RIP4(A, B, C, D, E, WR20, SR20, KR1);
        RIP4(E, A, B, C, D, WR21, SR21, KR1);
        RIP4(D, E, A, B, C, WR22, SR22, KR1);
        RIP4(C, D, E, A, B, WR23, SR23, KR1);
        RIP4(B, C, D, E, A, WR24, SR24, KR1);
        RIP4(A, B, C, D, E, WR25, SR25, KR1);
        RIP4(E, A, B, C, D, WR26, SR26, KR1);
        RIP4(D, E, A, B, C, WR27, SR27, KR1);
        RIP4(C, D, E, A, B, WR28, SR28, KR1);
        RIP4(B, C, D, E, A, WR29, SR29, KR1);
        RIP4(A, B, C, D, E, WR30, SR30, KR1);
        RIP4(E, A, B, C, D, WR31, SR31, KR1);

        RIP3(D, E, A, B, C, WR32, SR32, KR2);
        RIP3(C, D, E, A, B, WR33, SR33, KR2);
        RIP3(B, C, D, E, A, WR34, SR34, KR2);
        RIP3(A, B, C, D, E, WR35, SR35, KR2);
        RIP3(E, A, B, C, D, WR36, SR36, KR2);
        RIP3(D, E, A, B, C, WR37, SR37, KR2);
        RIP3(C, D, E, A, B, WR38, SR38, KR2);
        RIP3(B, C, D, E, A, WR39, SR39, KR2);
        RIP3(A, B, C, D, E, WR40, SR40, KR2);
        RIP3(E, A, B, C, D, WR41, SR41, KR2);
        RIP3(D, E, A, B, C, WR42, SR42, KR2);
        RIP3(C, D, E, A, B, WR43, SR43, KR2);
        RIP3(B, C, D, E, A, WR44, SR44, KR2);
        RIP3(A, B, C, D, E, WR45, SR45, KR2);
        RIP3(E, A, B, C, D, WR46, SR46, KR2);
        RIP3(D, E, A, B, C, WR47, SR47, KR2);

        RIP2(C, D, E, A, B, WR48, SR48, KR3);
        RIP2(B, C, D, E, A, WR49, SR49, KR3);
        RIP2(A, B, C, D, E, WR50, SR50, KR3);
        RIP2(E, A, B, C, D, WR51, SR51, KR3);
        RIP2(D, E, A, B, C, WR52, SR52, KR3);
        RIP2(C, D, E, A, B, WR53, SR53, KR3);
        RIP2(B, C, D, E, A, WR54, SR54, KR3);
        RIP2(A, B, C, D, E, WR55, SR55, KR3);
        RIP2(E, A, B, C, D, WR56, SR56, KR3);
        RIP2(D, E, A, B, C, WR57, SR57, KR3);
        RIP2(C, D, E, A, B, WR58, SR58, KR3);
        RIP2(B, C, D, E, A, WR59, SR59, KR3);
        RIP2(A, B, C, D, E, WR60, SR60, KR3);
        RIP2(E, A, B, C, D, WR61, SR61, KR3);
        RIP2(D, E, A, B, C, WR62, SR62, KR3);
        RIP2(C, D, E, A, B, WR63, SR63, KR3);

        RIP1(B, C, D, E, A, WR64, SR64);
        RIP1(A, B, C, D, E, WR65, SR65);
        RIP1(E, A, B, C, D, WR66, SR66);
        RIP1(D, E, A, B, C, WR67, SR67);
        RIP1(C, D, E, A, B, WR68, SR68);
        RIP1(B, C, D, E, A, WR69, SR69);
        RIP1(A, B, C, D, E, WR70, SR70);
        RIP1(E, A, B, C, D, WR71, SR71);
        RIP1(D, E, A, B, C, WR72, SR72);
        RIP1(C, D, E, A, B, WR73, SR73);
        RIP1(B, C, D, E, A, WR74, SR74);
        RIP1(A, B, C, D, E, WR75, SR75);
        RIP1(E, A, B, C, D, WR76, SR76);
        RIP1(D, E, A, B, C, WR77, SR77);
        RIP1(C, D, E, A, B, WR78, SR78);
        RIP1(B, C, D, E, A, WR79, SR79);

        D = ctx->B + c + D;
        ctx->B = ctx->C + d + E;
        ctx->C = ctx->D + e + A;
        ctx->D = ctx->E + a + B;
        ctx->E = ctx->A + b + C;
        ctx->A = D;

    }
}
#endif
