Patch adds RIPEMD-128 and RIPEMD-160 implementation cindly offered by
Legimet <legimet.calc@gmail.com> to replace the non-free ones
used in the original code.

--- /dev/null
+++ b/generic/ripemd/rmd128.c
@@ -0,0 +1,122 @@
+/*
+ * Implementation of RIPEMD-128.
+ *
+ * Copyright (C) 2014 Legimet <legimet.calc@gmail.com>
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL I LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS
+ * SOFTWARE AND ITS DOCUMENTATION, EVEN IF I HAVE BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * I SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND
+ * I HAVE NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ * ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include "rmdcommon.h"
+#include "rmd128.h"
+
+void ripemd128_MDinit(dword *MDbuf) {
+    MDbuf[0] = initvals[0];
+    MDbuf[1] = initvals[1];
+    MDbuf[2] = initvals[2];
+    MDbuf[3] = initvals[3];
+}
+
+static inline void ripemd128_round1(dword *a, dword *b, dword *c, dword *d,
+	dword *ap, dword *bp, dword *cp, dword *dp, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f1(*b, *c, *d) + X[r[i]], s[i]);
+    *ap = rmd_rol(*ap + rmd_f4(*bp, *cp, *dp) + X[rprime[i]] + kprime[0], sprime[i]);
+}
+
+static inline void ripemd128_round2(dword *a, dword *b, dword *c, dword *d,
+	dword *ap, dword *bp, dword *cp, dword *dp, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f2(*b, *c, *d) + X[r[i]] + k[0], s[i]);
+    *ap = rmd_rol(*ap + rmd_f3(*bp, *cp, *dp) + X[rprime[i]] + kprime[1], sprime[i]);
+}
+
+static inline void ripemd128_round3(dword *a, dword *b, dword *c, dword *d,
+	dword *ap, dword *bp, dword *cp, dword *dp, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f3(*b, *c, *d) + X[r[i]] + k[1], s[i]);
+    *ap = rmd_rol(*ap + rmd_f2(*bp, *cp, *dp) + X[rprime[i]] + kprime[2], sprime[i]);
+}
+
+static inline void ripemd128_round4(dword *a, dword *b, dword *c, dword *d,
+	dword *ap, dword *bp, dword *cp, dword *dp, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f4(*b, *c, *d) + X[r[i]] + k[2], s[i]);
+    *ap = rmd_rol(*ap + rmd_f1(*bp, *cp, *dp) + X[rprime[i]], sprime[i]);
+}
+
+void ripemd128_compress(dword *MDbuf, dword *X) {
+    dword a = MDbuf[0], b = MDbuf[1], c = MDbuf[2], d = MDbuf[3];
+    dword ap = MDbuf[0], bp = MDbuf[1], cp = MDbuf[2], dp = MDbuf[3];
+    int i;
+
+    for (i = 0; i < 16;) {
+	ripemd128_round1(&a, &b, &c, &d, &ap, &bp, &cp, &dp, i++, X);
+	ripemd128_round1(&d, &a, &b, &c, &dp, &ap, &bp, &cp, i++, X);
+	ripemd128_round1(&c, &d, &a, &b, &cp, &dp, &ap, &bp, i++, X);
+	ripemd128_round1(&b, &c, &d, &a, &bp, &cp, &dp, &ap, i++, X);
+    }
+
+    for (i = 16; i < 32;) {
+	ripemd128_round2(&a, &b, &c, &d, &ap, &bp, &cp, &dp, i++, X);
+	ripemd128_round2(&d, &a, &b, &c, &dp, &ap, &bp, &cp, i++, X);
+	ripemd128_round2(&c, &d, &a, &b, &cp, &dp, &ap, &bp, i++, X);
+	ripemd128_round2(&b, &c, &d, &a, &bp, &cp, &dp, &ap, i++, X);
+    }
+
+    for (i = 32; i < 48;) {
+	ripemd128_round3(&a, &b, &c, &d, &ap, &bp, &cp, &dp, i++, X);
+	ripemd128_round3(&d, &a, &b, &c, &dp, &ap, &bp, &cp, i++, X);
+	ripemd128_round3(&c, &d, &a, &b, &cp, &dp, &ap, &bp, i++, X);
+	ripemd128_round3(&b, &c, &d, &a, &bp, &cp, &dp, &ap, i++, X);
+    }
+
+    for (i = 48; i < 64;) {
+	ripemd128_round4(&a, &b, &c, &d, &ap, &bp, &cp, &dp, i++, X);
+	ripemd128_round4(&d, &a, &b, &c, &dp, &ap, &bp, &cp, i++, X);
+	ripemd128_round4(&c, &d, &a, &b, &cp, &dp, &ap, &bp, i++, X);
+	ripemd128_round4(&b, &c, &d, &a, &bp, &cp, &dp, &ap, i++, X);
+    }
+
+    c += MDbuf[1] + dp;
+    MDbuf[1] = MDbuf[2] + d + ap;
+    MDbuf[2] = MDbuf[3] + a + bp;
+    MDbuf[3] = MDbuf[0] + b + cp;
+    MDbuf[0] = c;
+}
+
+void ripemd128_MDfinish(dword *MDbuf, byte *strptr, dword lswlen, dword mswlen) {
+    dword X[16] = {0}; /* Initialize to all 0 */
+    dword i;
+
+    /* Copy bytes from strptr into X */
+    for (i = 0; i < (lswlen & 63); i++) {
+	X[i >> 2] |= (dword)strptr[i] << ((i & 3) << 3);
+    }
+
+    /* Add a 1 bit for padding */
+    X[i >> 2] |= 128 << ((i & 3) << 3);
+
+    /* length in bits is at least 448 mod 512, second block needed */
+    if ((lswlen & 63) >= 56) {
+	ripemd128_compress(MDbuf, X);
+	memset(X, 0, 64);
+    }
+
+    /* Append the 64-bit length in the last 2 words, low-order word first */
+    X[14] = lswlen << 3;
+    X[15] = (mswlen << 3) + (lswlen >> 29);
+    ripemd128_compress(MDbuf, X); /* Compress the final block */
+}
--- /dev/null
+++ b/generic/ripemd/rmd128.h
@@ -0,0 +1,46 @@
+/*
+ * Header file for implementation of RIPEMD-128.
+ *
+ * Copyright (C) 2014 Legimet <legimet.calc@gmail.com>
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL I LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS
+ * SOFTWARE AND ITS DOCUMENTATION, EVEN IF I HAVE BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * I SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND
+ * I HAVE NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ * ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef RMD128_H
+#define RMD128_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+typedef uint32_t dword;
+typedef uint16_t word;
+typedef uint8_t byte;
+
+void ripemd128_MDinit(dword *MDbuf);
+
+void ripemd128_compress(dword *MDbuf, dword *X);
+
+void ripemd128_MDfinish(dword *MDbuf, byte *strptr, dword lswlen, dword mswlen);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
--- /dev/null
+++ b/generic/ripemd/rmd160.c
@@ -0,0 +1,157 @@
+/*
+ * Implementation of RIPEMD-160.
+ *
+ * Copyright (C) 2014 Legimet <legimet.calc@gmail.com>
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL I LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS
+ * SOFTWARE AND ITS DOCUMENTATION, EVEN IF I HAVE BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * I SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND
+ * I HAVE NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ * ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#include <stdint.h>
+#include <string.h>
+#include "rmdcommon.h"
+#include "rmd160.h"
+
+void ripemd160_MDinit(dword *MDbuf) {
+    MDbuf[0] = initvals[0];
+    MDbuf[1] = initvals[1];
+    MDbuf[2] = initvals[2];
+    MDbuf[3] = initvals[3];
+    MDbuf[4] = initvals[4];
+}
+
+static inline void ripemd160_round1(dword *a, dword *b, dword *c, dword *d, dword *e,
+	dword *ap, dword *bp, dword *cp, dword *dp, dword *ep, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f1(*b, *c, *d) + X[r[i]], s[i]) + *e;
+    *c = rmd_rol(*c, 10);
+    *ap = rmd_rol(*ap + rmd_f5(*bp, *cp, *dp) + X[rprime[i]] + kprime[0], sprime[i]) + *ep;
+    *cp = rmd_rol(*cp, 10);
+}
+
+static inline void ripemd160_round2(dword *a, dword *b, dword *c, dword *d, dword *e,
+	dword *ap, dword *bp, dword *cp, dword *dp, dword *ep, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f2(*b, *c, *d) + X[r[i]] + k[0], s[i]) + *e;
+    *c = rmd_rol(*c, 10);
+    *ap = rmd_rol(*ap + rmd_f4(*bp, *cp, *dp) + X[rprime[i]] + kprime[1], sprime[i]) + *ep;
+    *cp = rmd_rol(*cp, 10);
+}
+
+static inline void ripemd160_round3(dword *a, dword *b, dword *c, dword *d, dword *e,
+	dword *ap, dword *bp, dword *cp, dword *dp, dword *ep, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f3(*b, *c, *d) + X[r[i]] + k[1], s[i]) + *e;
+    *c = rmd_rol(*c, 10);
+    *ap = rmd_rol(*ap + rmd_f3(*bp, *cp, *dp) + X[rprime[i]] + kprime[2], sprime[i]) + *ep;
+    *cp = rmd_rol(*cp, 10);
+}
+
+static inline void ripemd160_round4(dword *a, dword *b, dword *c, dword *d, dword *e,
+	dword *ap, dword *bp, dword *cp, dword *dp, dword *ep, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f4(*b, *c, *d) + X[r[i]] + k[2], s[i]) + *e;
+    *c = rmd_rol(*c, 10);
+    *ap = rmd_rol(*ap + rmd_f2(*bp, *cp, *dp) + X[rprime[i]] + kprime[3], sprime[i]) + *ep;
+    *cp = rmd_rol(*cp, 10);
+}
+
+static inline void ripemd160_round5(dword *a, dword *b, dword *c, dword *d, dword *e,
+	dword *ap, dword *bp, dword *cp, dword *dp, dword *ep, int i, dword *X) {
+    *a = rmd_rol(*a + rmd_f5(*b, *c, *d) + X[r[i]] + k[3], s[i]) + *e;
+    *c = rmd_rol(*c, 10);
+    *ap = rmd_rol(*ap + rmd_f1(*bp, *cp, *dp) + X[rprime[i]], sprime[i]) + *ep;
+    *cp = rmd_rol(*cp, 10);
+}
+
+void ripemd160_compress(dword *MDbuf, dword *X) {
+    dword a = MDbuf[0], b = MDbuf[1], c = MDbuf[2], d = MDbuf[3], e = MDbuf[4];
+    dword ap = MDbuf[0], bp = MDbuf[1], cp = MDbuf[2], dp = MDbuf[3], ep = MDbuf[4];
+    int i;
+
+    for (i = 0; i < 15;) {
+	ripemd160_round1(&a, &b, &c, &d, &e, &ap, &bp, &cp, &dp, &ep, i++, X);
+	ripemd160_round1(&e, &a, &b, &c, &d, &ep, &ap, &bp, &cp, &dp, i++, X);
+	ripemd160_round1(&d, &e, &a, &b, &c, &dp, &ep, &ap, &bp, &cp, i++, X);
+	ripemd160_round1(&c, &d, &e, &a, &b, &cp, &dp, &ep, &ap, &bp, i++, X);
+	ripemd160_round1(&b, &c, &d, &e, &a, &bp, &cp, &dp, &ep, &ap, i++, X);
+    }
+    ripemd160_round1(&a, &b, &c, &d, &e, &ap, &bp, &cp, &dp, &ep, i++, X);
+
+    for (i = 16; i < 31;) {
+	ripemd160_round2(&e, &a, &b, &c, &d, &ep, &ap, &bp, &cp, &dp, i++, X);
+	ripemd160_round2(&d, &e, &a, &b, &c, &dp, &ep, &ap, &bp, &cp, i++, X);
+	ripemd160_round2(&c, &d, &e, &a, &b, &cp, &dp, &ep, &ap, &bp, i++, X);
+	ripemd160_round2(&b, &c, &d, &e, &a, &bp, &cp, &dp, &ep, &ap, i++, X);
+	ripemd160_round2(&a, &b, &c, &d, &e, &ap, &bp, &cp, &dp, &ep, i++, X);
+    }
+    ripemd160_round2(&e, &a, &b, &c, &d, &ep, &ap, &bp, &cp, &dp, i++, X);
+
+    for (i = 32; i < 47;) {
+	ripemd160_round3(&d, &e, &a, &b, &c, &dp, &ep, &ap, &bp, &cp, i++, X);
+	ripemd160_round3(&c, &d, &e, &a, &b, &cp, &dp, &ep, &ap, &bp, i++, X);
+	ripemd160_round3(&b, &c, &d, &e, &a, &bp, &cp, &dp, &ep, &ap, i++, X);
+	ripemd160_round3(&a, &b, &c, &d, &e, &ap, &bp, &cp, &dp, &ep, i++, X);
+	ripemd160_round3(&e, &a, &b, &c, &d, &ep, &ap, &bp, &cp, &dp, i++, X);
+    }
+    ripemd160_round3(&d, &e, &a, &b, &c, &dp, &ep, &ap, &bp, &cp, i++, X);
+
+    for (i = 48; i < 63;) {
+	ripemd160_round4(&c, &d, &e, &a, &b, &cp, &dp, &ep, &ap, &bp, i++, X);
+	ripemd160_round4(&b, &c, &d, &e, &a, &bp, &cp, &dp, &ep, &ap, i++, X);
+	ripemd160_round4(&a, &b, &c, &d, &e, &ap, &bp, &cp, &dp, &ep, i++, X);
+	ripemd160_round4(&e, &a, &b, &c, &d, &ep, &ap, &bp, &cp, &dp, i++, X);
+	ripemd160_round4(&d, &e, &a, &b, &c, &dp, &ep, &ap, &bp, &cp, i++, X);
+    }
+    ripemd160_round4(&c, &d, &e, &a, &b, &cp, &dp, &ep, &ap, &bp, i++, X);
+
+    for (i = 64; i < 79;) {
+	ripemd160_round5(&b, &c, &d, &e, &a, &bp, &cp, &dp, &ep, &ap, i++, X);
+	ripemd160_round5(&a, &b, &c, &d, &e, &ap, &bp, &cp, &dp, &ep, i++, X);
+	ripemd160_round5(&e, &a, &b, &c, &d, &ep, &ap, &bp, &cp, &dp, i++, X);
+	ripemd160_round5(&d, &e, &a, &b, &c, &dp, &ep, &ap, &bp, &cp, i++, X);
+	ripemd160_round5(&c, &d, &e, &a, &b, &cp, &dp, &ep, &ap, &bp, i++, X);
+    }
+    ripemd160_round5(&b, &c, &d, &e, &a, &bp, &cp, &dp, &ep, &ap, i, X);
+
+    c += MDbuf[1] + dp;
+    MDbuf[1] = MDbuf[2] + d + ep;
+    MDbuf[2] = MDbuf[3] + e + ap;
+    MDbuf[3] = MDbuf[4] + a + bp;
+    MDbuf[4] = MDbuf[0] + b + cp;
+    MDbuf[0] = c;
+}
+
+void ripemd160_MDfinish(dword *MDbuf, byte *strptr, dword lswlen, dword mswlen) {
+    dword X[16] = {0}; /* Initialize to all 0 */
+    dword i;
+
+    /* Copy bytes from strptr into X */
+    for (i = 0; i < (lswlen & 63); i++) {
+	X[i >> 2] |= (dword)strptr[i] << ((i & 3) << 3);
+    }
+
+    /* Add a 1 bit for padding */
+    X[i >> 2] |= 128 << ((i & 3) << 3);
+
+    /* length in bits is at least 448 mod 512, second block needed */
+    if ((lswlen & 63) >= 56) {
+	ripemd160_compress(MDbuf, X);
+	memset(X, 0, 64);
+    }
+
+    /* Append the 64-bit length in the last 2 words, low-order word first */
+    X[14] = lswlen << 3;
+    X[15] = (mswlen << 3) + (lswlen >> 29);
+    ripemd160_compress(MDbuf, X); /* Compress the final block */
+}
--- /dev/null
+++ b/generic/ripemd/rmd160.h
@@ -0,0 +1,46 @@
+/*
+ * Header file for implementation of RIPEMD-160.
+ *
+ * Copyright (C) 2014 Legimet <legimet.calc@gmail.com>
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL I LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS
+ * SOFTWARE AND ITS DOCUMENTATION, EVEN IF I HAVE BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * I SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND
+ * I HAVE NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ * ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef RMD160_H
+#define RMD160_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+typedef uint32_t dword;
+typedef uint16_t word;
+typedef uint8_t byte;
+
+void ripemd160_MDinit(dword *MDbuf);
+
+void ripemd160_compress(dword *MDbuf, dword *X);
+
+void ripemd160_MDfinish(dword *MDbuf, byte *strptr, dword lswlen, dword mswlen);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
--- /dev/null
+++ b/generic/ripemd/rmdcommon.h
@@ -0,0 +1,111 @@
+/*
+ * Common constants and functions for RIPEMD-128 and RIPEMD-160.
+ *
+ * Copyright (C) 2014 Legimet <legimet.calc@gmail.com>
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL I LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS
+ * SOFTWARE AND ITS DOCUMENTATION, EVEN IF I HAVE BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * I SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND
+ * I HAVE NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
+ * ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef RMDCOMMON_H
+#define RMDCOMMON_H
+
+#include <stdint.h>
+
+/* Initial values */
+static const uint32_t initvals[5] = {
+    0x67452301,
+    0xefcdab89,
+    0x98badcfe,
+    0x10325476,
+    0xc3d2e1f0
+};
+
+/* Added constants */
+static const uint32_t k[5] = {
+    0x5a827999,
+    0x6ed9eba1,
+    0x8f1bbcdc,
+    0xa953fd4e
+};
+
+static const uint32_t kprime[5] = {
+    0x50a28be6,
+    0x5c4dd124,
+    0x6d703ef3,
+    0x7a6d76e9,
+};
+
+/* Message selection */
+static const int r[80] = {
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+    7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
+    3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
+    1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
+    4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+};
+
+static const int rprime[80] = {
+     5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
+     6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
+     15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
+     8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
+     12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+};
+
+/* Number of bits for left rotations */
+static const int s[80] = {
+     11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
+     7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
+     11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
+     11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
+     9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+};
+
+static const int sprime[80] = {
+     8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
+     9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
+     9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
+     15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
+     8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+};
+
+static inline uint32_t rmd_f1(uint32_t x, uint32_t y, uint32_t z) {
+    return x ^ y ^ z;
+}
+
+static inline uint32_t rmd_f2(uint32_t x, uint32_t y, uint32_t z) {
+    return (x & y) | (~x & z);
+}
+
+static inline uint32_t rmd_f3(uint32_t x, uint32_t y, uint32_t z) {
+    return (x | ~y) ^ z;
+}
+
+static inline uint32_t rmd_f4(uint32_t x, uint32_t y, uint32_t z) {
+    return (x & z) | (y & ~z);
+}
+
+static inline uint32_t rmd_f5(uint32_t x, uint32_t y, uint32_t z) {
+    return x ^ (y | ~z);
+}
+
+static inline uint32_t rmd_rol(uint32_t n, int bits) {
+    return ((n << bits) | (n >> (32 - bits)));
+}
+
+#endif