crypto/ripemd160: new module.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Makefile-ccan

@@ -48,6 +48,7 @@ MODS_WITH_SRC := antithread \
 	crc \
 	crcsync \
 	cpuid \
+	crypto/ripemd160 \
 	crypto/sha256 \
 	crypto/shachain \
 	daemonize \

ccan/crypto/ripemd160/LICENSE

+../../../licenses/BSD-MIT
\ No newline at end of file

ccan/crypto/ripemd160/_info

+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+
+/**
+ * crypto/ripemd160 - implementation of RIPEMD 160 bit digest algorithm.
+ *
+ * This code is either a wrapper for openssl (if CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+ * is defined) or an open-coded implementation based on Bitcoin's.
+ *
+ * License: BSD-MIT
+ * Maintainer: Rusty Russell <rusty@rustcorp.com.au>
+ *
+ * Example:
+ *	#include <ccan/crypto/ripemd160/ripemd160.h>
+ *	#include <err.h>
+ *	#include <stdio.h>
+ *	#include <string.h>
+ *
+ *	// Simple demonstration: idential strings will have the same hash, but
+ *	// two different strings will not.
+ *	int main(int argc, char *argv[])
+ *	{
+ *		struct ripemd160 hash1, hash2;
+ *
+ *		if (argc != 3)
+ *			errx(1, "Usage: %s <string1> <string2>", argv[0]);
+ *
+ *		ripemd160(&hash1, argv[1], strlen(argv[1]));
+ *		ripemd160(&hash2, argv[2], strlen(argv[2]));
+ *		printf("Hash is %s\n", memcmp(&hash1, &hash2, sizeof(hash1))
+ *			? "different" : "same");
+ *		return 0;
+ *	}
+ */
+int main(int argc, char *argv[])
+{
+	/* Expect exactly one argument */
+	if (argc != 2)
+		return 1;
+
+	if (strcmp(argv[1], "depends") == 0) {
+		printf("ccan/endian\n");
+		return 0;
+	}
+
+	if (strcmp(argv[1], "libs") == 0) {
+#ifdef CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+		printf("crypto\n");
+#endif
+		return 0;
+	}
+
+	return 1;
+}

ccan/crypto/ripemd160/ripemd160.c

+/* MIT (BSD) license - see LICENSE file for details */
+/* RIPEMD core code translated from the Bitcoin project's C++:
+ *
+ * src/crypto/ripemd160.cpp commit f914f1a746d7f91951c1da262a4a749dd3ebfa71
+ * Copyright (c) 2014 The Bitcoin Core developers
+ * Distributed under the MIT software license, see the accompanying
+ * file COPYING or http://www.opensource.org/licenses/mit-license.php.
+ */
+#include <ccan/crypto/ripemd160/ripemd160.h>
+#include <ccan/endian/endian.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <string.h>
+
+static void invalidate_ripemd160(struct ripemd160_ctx *ctx)
+{
+#ifdef CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+	ctx->c.num = -1U;
+#else
+	ctx->bytes = -1ULL;
+#endif
+}
+
+static void check_ripemd160(struct ripemd160_ctx *ctx)
+{
+#ifdef CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+	assert(ctx->c.num != -1U);
+#else
+	assert(ctx->bytes != -1ULL);
+#endif
+}
+
+#ifdef CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+void ripemd160_init(struct ripemd160_ctx *ctx)
+{
+	RIPEMD160_Init(&ctx->c);
+}
+
+void ripemd160_update(struct ripemd160_ctx *ctx, const void *p, size_t size)
+{
+	check_ripemd160(ctx);
+	RIPEMD160_Update(&ctx->c, p, size);
+}
+
+void ripemd160_done(struct ripemd160_ctx *ctx, struct ripemd160 *res)
+{
+	RIPEMD160_Final(res->u.u8, &ctx->c);
+	invalidate_ripemd160(ctx);
+}
+#else
+static uint32_t inline f1(uint32_t x, uint32_t y, uint32_t z) { return x ^ y ^ z; }
+static uint32_t inline f2(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (~x & z); }
+static uint32_t inline f3(uint32_t x, uint32_t y, uint32_t z) { return (x | ~y) ^ z; }
+static uint32_t inline f4(uint32_t x, uint32_t y, uint32_t z) { return (x & z) | (y & ~z); }
+static uint32_t inline f5(uint32_t x, uint32_t y, uint32_t z) { return x ^ (y | ~z); }
+
+/** Initialize RIPEMD-160 state. */
+static void inline Initialize(uint32_t* s)
+{
+    s[0] = 0x67452301ul;
+    s[1] = 0xEFCDAB89ul;
+    s[2] = 0x98BADCFEul;
+    s[3] = 0x10325476ul;
+    s[4] = 0xC3D2E1F0ul;
+}
+
+static uint32_t inline rol(uint32_t x, int i) { return (x << i) | (x >> (32 - i)); }
+
+static void inline Round(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t f, uint32_t x, uint32_t k, int r)
+{
+    *a = rol(*a + f + x + k, r) + e;
+    *c = rol(*c, 10);
+}
+
+static void inline R11(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f1(b, *c, d), x, 0, r); }
+static void inline R21(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f2(b, *c, d), x, 0x5A827999ul, r); }
+static void inline R31(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f3(b, *c, d), x, 0x6ED9EBA1ul, r); }
+static void inline R41(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f4(b, *c, d), x, 0x8F1BBCDCul, r); }
+static void inline R51(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f5(b, *c, d), x, 0xA953FD4Eul, r); }
+
+static void inline R12(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f5(b, *c, d), x, 0x50A28BE6ul, r); }
+static void inline R22(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f4(b, *c, d), x, 0x5C4DD124ul, r); }
+static void inline R32(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f3(b, *c, d), x, 0x6D703EF3ul, r); }
+static void inline R42(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f2(b, *c, d), x, 0x7A6D76E9ul, r); }
+static void inline R52(uint32_t *a, uint32_t b, uint32_t *c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f1(b, *c, d), x, 0, r); }
+
+/** Perform a RIPEMD-160 transformation, processing a 64-byte chunk. */
+static void Transform(uint32_t *s, const uint32_t *chunk)
+{
+    uint32_t a1 = s[0], b1 = s[1], c1 = s[2], d1 = s[3], e1 = s[4];
+    uint32_t a2 = a1, b2 = b1, c2 = c1, d2 = d1, e2 = e1;
+    uint32_t w0 = le32_to_cpu(chunk[0]), w1 = le32_to_cpu(chunk[1]), w2 = le32_to_cpu(chunk[2]), w3 = le32_to_cpu(chunk[3]);
+    uint32_t w4 = le32_to_cpu(chunk[4]), w5 = le32_to_cpu(chunk[5]), w6 = le32_to_cpu(chunk[6]), w7 = le32_to_cpu(chunk[7]);
+    uint32_t w8 = le32_to_cpu(chunk[8]), w9 = le32_to_cpu(chunk[9]), w10 = le32_to_cpu(chunk[10]), w11 = le32_to_cpu(chunk[11]);
+    uint32_t w12 = le32_to_cpu(chunk[12]), w13 = le32_to_cpu(chunk[13]), w14 = le32_to_cpu(chunk[14]), w15 = le32_to_cpu(chunk[15]);
+
+    R11(&a1, b1, &c1, d1, e1, w0, 11);
+    R12(&a2, b2, &c2, d2, e2, w5, 8);
+    R11(&e1, a1, &b1, c1, d1, w1, 14);
+    R12(&e2, a2, &b2, c2, d2, w14, 9);
+    R11(&d1, e1, &a1, b1, c1, w2, 15);
+    R12(&d2, e2, &a2, b2, c2, w7, 9);
+    R11(&c1, d1, &e1, a1, b1, w3, 12);
+    R12(&c2, d2, &e2, a2, b2, w0, 11);
+    R11(&b1, c1, &d1, e1, a1, w4, 5);
+    R12(&b2, c2, &d2, e2, a2, w9, 13);
+    R11(&a1, b1, &c1, d1, e1, w5, 8);
+    R12(&a2, b2, &c2, d2, e2, w2, 15);
+    R11(&e1, a1, &b1, c1, d1, w6, 7);
+    R12(&e2, a2, &b2, c2, d2, w11, 15);
+    R11(&d1, e1, &a1, b1, c1, w7, 9);
+    R12(&d2, e2, &a2, b2, c2, w4, 5);
+    R11(&c1, d1, &e1, a1, b1, w8, 11);
+    R12(&c2, d2, &e2, a2, b2, w13, 7);
+    R11(&b1, c1, &d1, e1, a1, w9, 13);
+    R12(&b2, c2, &d2, e2, a2, w6, 7);
+    R11(&a1, b1, &c1, d1, e1, w10, 14);
+    R12(&a2, b2, &c2, d2, e2, w15, 8);
+    R11(&e1, a1, &b1, c1, d1, w11, 15);
+    R12(&e2, a2, &b2, c2, d2, w8, 11);
+    R11(&d1, e1, &a1, b1, c1, w12, 6);
+    R12(&d2, e2, &a2, b2, c2, w1, 14);
+    R11(&c1, d1, &e1, a1, b1, w13, 7);
+    R12(&c2, d2, &e2, a2, b2, w10, 14);
+    R11(&b1, c1, &d1, e1, a1, w14, 9);
+    R12(&b2, c2, &d2, e2, a2, w3, 12);
+    R11(&a1, b1, &c1, d1, e1, w15, 8);
+    R12(&a2, b2, &c2, d2, e2, w12, 6);
+
+    R21(&e1, a1, &b1, c1, d1, w7, 7);
+    R22(&e2, a2, &b2, c2, d2, w6, 9);
+    R21(&d1, e1, &a1, b1, c1, w4, 6);
+    R22(&d2, e2, &a2, b2, c2, w11, 13);
+    R21(&c1, d1, &e1, a1, b1, w13, 8);
+    R22(&c2, d2, &e2, a2, b2, w3, 15);
+    R21(&b1, c1, &d1, e1, a1, w1, 13);
+    R22(&b2, c2, &d2, e2, a2, w7, 7);
+    R21(&a1, b1, &c1, d1, e1, w10, 11);
+    R22(&a2, b2, &c2, d2, e2, w0, 12);
+    R21(&e1, a1, &b1, c1, d1, w6, 9);
+    R22(&e2, a2, &b2, c2, d2, w13, 8);
+    R21(&d1, e1, &a1, b1, c1, w15, 7);
+    R22(&d2, e2, &a2, b2, c2, w5, 9);
+    R21(&c1, d1, &e1, a1, b1, w3, 15);
+    R22(&c2, d2, &e2, a2, b2, w10, 11);
+    R21(&b1, c1, &d1, e1, a1, w12, 7);
+    R22(&b2, c2, &d2, e2, a2, w14, 7);
+    R21(&a1, b1, &c1, d1, e1, w0, 12);
+    R22(&a2, b2, &c2, d2, e2, w15, 7);
+    R21(&e1, a1, &b1, c1, d1, w9, 15);
+    R22(&e2, a2, &b2, c2, d2, w8, 12);
+    R21(&d1, e1, &a1, b1, c1, w5, 9);
+    R22(&d2, e2, &a2, b2, c2, w12, 7);
+    R21(&c1, d1, &e1, a1, b1, w2, 11);
+    R22(&c2, d2, &e2, a2, b2, w4, 6);
+    R21(&b1, c1, &d1, e1, a1, w14, 7);
+    R22(&b2, c2, &d2, e2, a2, w9, 15);
+    R21(&a1, b1, &c1, d1, e1, w11, 13);
+    R22(&a2, b2, &c2, d2, e2, w1, 13);
+    R21(&e1, a1, &b1, c1, d1, w8, 12);
+    R22(&e2, a2, &b2, c2, d2, w2, 11);
+
+    R31(&d1, e1, &a1, b1, c1, w3, 11);
+    R32(&d2, e2, &a2, b2, c2, w15, 9);
+    R31(&c1, d1, &e1, a1, b1, w10, 13);
+    R32(&c2, d2, &e2, a2, b2, w5, 7);
+    R31(&b1, c1, &d1, e1, a1, w14, 6);
+    R32(&b2, c2, &d2, e2, a2, w1, 15);
+    R31(&a1, b1, &c1, d1, e1, w4, 7);
+    R32(&a2, b2, &c2, d2, e2, w3, 11);
+    R31(&e1, a1, &b1, c1, d1, w9, 14);
+    R32(&e2, a2, &b2, c2, d2, w7, 8);
+    R31(&d1, e1, &a1, b1, c1, w15, 9);
+    R32(&d2, e2, &a2, b2, c2, w14, 6);
+    R31(&c1, d1, &e1, a1, b1, w8, 13);
+    R32(&c2, d2, &e2, a2, b2, w6, 6);
+    R31(&b1, c1, &d1, e1, a1, w1, 15);
+    R32(&b2, c2, &d2, e2, a2, w9, 14);
+    R31(&a1, b1, &c1, d1, e1, w2, 14);
+    R32(&a2, b2, &c2, d2, e2, w11, 12);
+    R31(&e1, a1, &b1, c1, d1, w7, 8);
+    R32(&e2, a2, &b2, c2, d2, w8, 13);
+    R31(&d1, e1, &a1, b1, c1, w0, 13);
+    R32(&d2, e2, &a2, b2, c2, w12, 5);
+    R31(&c1, d1, &e1, a1, b1, w6, 6);
+    R32(&c2, d2, &e2, a2, b2, w2, 14);
+    R31(&b1, c1, &d1, e1, a1, w13, 5);
+    R32(&b2, c2, &d2, e2, a2, w10, 13);
+    R31(&a1, b1, &c1, d1, e1, w11, 12);
+    R32(&a2, b2, &c2, d2, e2, w0, 13);
+    R31(&e1, a1, &b1, c1, d1, w5, 7);
+    R32(&e2, a2, &b2, c2, d2, w4, 7);
+    R31(&d1, e1, &a1, b1, c1, w12, 5);
+    R32(&d2, e2, &a2, b2, c2, w13, 5);
+
+    R41(&c1, d1, &e1, a1, b1, w1, 11);
+    R42(&c2, d2, &e2, a2, b2, w8, 15);
+    R41(&b1, c1, &d1, e1, a1, w9, 12);
+    R42(&b2, c2, &d2, e2, a2, w6, 5);
+    R41(&a1, b1, &c1, d1, e1, w11, 14);
+    R42(&a2, b2, &c2, d2, e2, w4, 8);
+    R41(&e1, a1, &b1, c1, d1, w10, 15);
+    R42(&e2, a2, &b2, c2, d2, w1, 11);
+    R41(&d1, e1, &a1, b1, c1, w0, 14);
+    R42(&d2, e2, &a2, b2, c2, w3, 14);
+    R41(&c1, d1, &e1, a1, b1, w8, 15);
+    R42(&c2, d2, &e2, a2, b2, w11, 14);
+    R41(&b1, c1, &d1, e1, a1, w12, 9);
+    R42(&b2, c2, &d2, e2, a2, w15, 6);
+    R41(&a1, b1, &c1, d1, e1, w4, 8);
+    R42(&a2, b2, &c2, d2, e2, w0, 14);
+    R41(&e1, a1, &b1, c1, d1, w13, 9);
+    R42(&e2, a2, &b2, c2, d2, w5, 6);
+    R41(&d1, e1, &a1, b1, c1, w3, 14);
+    R42(&d2, e2, &a2, b2, c2, w12, 9);
+    R41(&c1, d1, &e1, a1, b1, w7, 5);
+    R42(&c2, d2, &e2, a2, b2, w2, 12);
+    R41(&b1, c1, &d1, e1, a1, w15, 6);
+    R42(&b2, c2, &d2, e2, a2, w13, 9);
+    R41(&a1, b1, &c1, d1, e1, w14, 8);
+    R42(&a2, b2, &c2, d2, e2, w9, 12);
+    R41(&e1, a1, &b1, c1, d1, w5, 6);
+    R42(&e2, a2, &b2, c2, d2, w7, 5);
+    R41(&d1, e1, &a1, b1, c1, w6, 5);
+    R42(&d2, e2, &a2, b2, c2, w10, 15);
+    R41(&c1, d1, &e1, a1, b1, w2, 12);
+    R42(&c2, d2, &e2, a2, b2, w14, 8);
+
+    R51(&b1, c1, &d1, e1, a1, w4, 9);
+    R52(&b2, c2, &d2, e2, a2, w12, 8);
+    R51(&a1, b1, &c1, d1, e1, w0, 15);
+    R52(&a2, b2, &c2, d2, e2, w15, 5);
+    R51(&e1, a1, &b1, c1, d1, w5, 5);
+    R52(&e2, a2, &b2, c2, d2, w10, 12);
+    R51(&d1, e1, &a1, b1, c1, w9, 11);
+    R52(&d2, e2, &a2, b2, c2, w4, 9);
+    R51(&c1, d1, &e1, a1, b1, w7, 6);
+    R52(&c2, d2, &e2, a2, b2, w1, 12);
+    R51(&b1, c1, &d1, e1, a1, w12, 8);
+    R52(&b2, c2, &d2, e2, a2, w5, 5);
+    R51(&a1, b1, &c1, d1, e1, w2, 13);
+    R52(&a2, b2, &c2, d2, e2, w8, 14);
+    R51(&e1, a1, &b1, c1, d1, w10, 12);
+    R52(&e2, a2, &b2, c2, d2, w7, 6);
+    R51(&d1, e1, &a1, b1, c1, w14, 5);
+    R52(&d2, e2, &a2, b2, c2, w6, 8);
+    R51(&c1, d1, &e1, a1, b1, w1, 12);
+    R52(&c2, d2, &e2, a2, b2, w2, 13);
+    R51(&b1, c1, &d1, e1, a1, w3, 13);
+    R52(&b2, c2, &d2, e2, a2, w13, 6);
+    R51(&a1, b1, &c1, d1, e1, w8, 14);
+    R52(&a2, b2, &c2, d2, e2, w14, 5);
+    R51(&e1, a1, &b1, c1, d1, w11, 11);
+    R52(&e2, a2, &b2, c2, d2, w0, 15);
+    R51(&d1, e1, &a1, b1, c1, w6, 8);
+    R52(&d2, e2, &a2, b2, c2, w3, 13);
+    R51(&c1, d1, &e1, a1, b1, w15, 5);
+    R52(&c2, d2, &e2, a2, b2, w9, 11);
+    R51(&b1, c1, &d1, e1, a1, w13, 6);
+    R52(&b2, c2, &d2, e2, a2, w11, 11);
+
+    uint32_t t = s[0];
+    s[0] = s[1] + c1 + d2;
+    s[1] = s[2] + d1 + e2;
+    s[2] = s[3] + e1 + a2;
+    s[3] = s[4] + a1 + b2;
+    s[4] = t + b1 + c2;
+}
+
+static bool alignment_ok(const void *p, size_t n)
+{
+#if HAVE_UNALIGNED_ACCESS
+	return true;
+#else
+	return ((size_t)p % n == 0);
+#endif
+}
+
+static void add(struct ripemd160_ctx *ctx, const void *p, size_t len)
+{
+	const unsigned char *data = p;
+	size_t bufsize = ctx->bytes % 64;
+
+	if (bufsize + len >= 64) {
+		// Fill the buffer, and process it.
+		memcpy(ctx->buf.u8 + bufsize, data, 64 - bufsize);
+		ctx->bytes += 64 - bufsize;
+		data += 64 - bufsize;
+		len -= 64 - bufsize;
+		Transform(ctx->s, ctx->buf.u32);
+		bufsize = 0;
+	}
+
+	while (len >= 64) {
+		// Process full chunks directly from the source.
+		if (alignment_ok(data, sizeof(uint32_t)))
+			Transform(ctx->s, (const uint32_t *)data);
+		else {
+			memcpy(ctx->buf.u8, data, sizeof(ctx->buf));
+			Transform(ctx->s, ctx->buf.u32);
+		}
+		ctx->bytes += 64;
+		data += 64;
+		len -= 64;
+	}
+	    
+	if (len) {
+		// Fill the buffer with what remains.
+		memcpy(ctx->buf.u8 + bufsize, data, len);
+		ctx->bytes += len;
+	}
+}
+
+void ripemd160_init(struct ripemd160_ctx *ctx)
+{
+	struct ripemd160_ctx init = RIPEMD160_INIT;
+	*ctx = init;
+}
+
+void ripemd160_update(struct ripemd160_ctx *ctx, const void *p, size_t size)
+{
+	check_ripemd160(ctx);
+	add(ctx, p, size);
+}
+
+void ripemd160_done(struct ripemd160_ctx *ctx, struct ripemd160 *res)
+{
+	static const unsigned char pad[64] = {0x80};
+	uint64_t sizedesc;
+	size_t i;
+
+	sizedesc = cpu_to_le64(ctx->bytes << 3);
+	/* Add '1' bit to terminate, then all 0 bits, up to next block - 8. */
+	add(ctx, pad, 1 + ((119 - (ctx->bytes % 64)) % 64));
+	/* Add number of bits of data (big endian) */
+	add(ctx, &sizedesc, 8);
+	for (i = 0; i < sizeof(ctx->s) / sizeof(ctx->s[0]); i++)
+		res->u.u32[i] = cpu_to_le32(ctx->s[i]);
+	invalidate_ripemd160(ctx);
+}
+#endif
+
+void ripemd160(struct ripemd160 *sha, const void *p, size_t size)
+{
+	struct ripemd160_ctx ctx;
+
+	ripemd160_init(&ctx);
+	ripemd160_update(&ctx, p, size);
+	ripemd160_done(&ctx, sha);
+}
+	
+void ripemd160_u8(struct ripemd160_ctx *ctx, uint8_t v)
+{
+	ripemd160_update(ctx, &v, sizeof(v));
+}
+
+void ripemd160_u16(struct ripemd160_ctx *ctx, uint16_t v)
+{
+	ripemd160_update(ctx, &v, sizeof(v));
+}
+
+void ripemd160_u32(struct ripemd160_ctx *ctx, uint32_t v)
+{
+	ripemd160_update(ctx, &v, sizeof(v));
+}
+
+void ripemd160_u64(struct ripemd160_ctx *ctx, uint64_t v)
+{
+	ripemd160_update(ctx, &v, sizeof(v));
+}
+
+/* Add as little-endian */
+void ripemd160_le16(struct ripemd160_ctx *ctx, uint16_t v)
+{
+	leint16_t lev = cpu_to_le16(v);
+	ripemd160_update(ctx, &lev, sizeof(lev));
+}
+	
+void ripemd160_le32(struct ripemd160_ctx *ctx, uint32_t v)
+{
+	leint32_t lev = cpu_to_le32(v);
+	ripemd160_update(ctx, &lev, sizeof(lev));
+}
+	
+void ripemd160_le64(struct ripemd160_ctx *ctx, uint64_t v)
+{
+	leint64_t lev = cpu_to_le64(v);
+	ripemd160_update(ctx, &lev, sizeof(lev));
+}
+
+/* Add as big-endian */
+void ripemd160_be16(struct ripemd160_ctx *ctx, uint16_t v)
+{
+	beint16_t bev = cpu_to_be16(v);
+	ripemd160_update(ctx, &bev, sizeof(bev));
+}
+	
+void ripemd160_be32(struct ripemd160_ctx *ctx, uint32_t v)
+{
+	beint32_t bev = cpu_to_be32(v);
+	ripemd160_update(ctx, &bev, sizeof(bev));
+}
+	
+void ripemd160_be64(struct ripemd160_ctx *ctx, uint64_t v)
+{
+	beint64_t bev = cpu_to_be64(v);
+	ripemd160_update(ctx, &bev, sizeof(bev));
+}

ccan/crypto/ripemd160/ripemd160.h

+#ifndef CCAN_CRYPTO_RIPEMD160_H
+#define CCAN_CRYPTO_RIPEMD160_H
+/* BSD-MIT - see LICENSE file for details */
+#include "config.h"
+#include <stdint.h>
+#include <stdlib.h>
+
+/* Uncomment this to use openssl's RIPEMD160 routines (and link with -lcrypto) */
+//#define CCAN_CRYPTO_RIPEMD160_USE_OPENSSL 1
+
+#ifdef CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+#include <openssl/ripemd.h>
+#endif
+
+/**
+ * struct ripemd160 - structure representing a completed RIPEMD160.
+ * @u.u8: an unsigned char array.
+ * @u.u32: a 32-bit integer array.
+ *
+ * Other fields may be added to the union in future.
+ */
+struct ripemd160 {
+	union {
+		/* Array of chars */
+		unsigned char u8[20];
+		/* Array of uint32_t */
+		uint32_t u32[5];
+	} u;
+};
+
+/**
+ * ripemd160 - return ripemd160 of an object.
+ * @ripemd160: the ripemd160 to fill in
+ * @p: pointer to memory,
+ * @size: the number of bytes pointed to by @p
+ *
+ * The bytes pointed to by @p is RIPEMD160 hashed into @ripemd160.  This is
+ * equivalent to ripemd160_init(), ripemd160_update() then ripemd160_done().
+ */
+void ripemd160(struct ripemd160 *sha, const void *p, size_t size);
+
+/**
+ * struct ripemd160_ctx - structure to store running context for ripemd160
+ */
+struct ripemd160_ctx {
+#ifdef CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+	RIPEMD160_CTX c;
+#else
+	uint32_t s[5];
+	uint64_t bytes;
+	union {
+		uint32_t u32[8];
+		unsigned char u8[64];
+	} buf;
+#endif
+};
+
+/**
+ * ripemd160_init - initialize an RIPEMD160 context.
+ * @ctx: the ripemd160_ctx to initialize
+ *
+ * This must be called before ripemd160_update or ripemd160_done, or
+ * alternately you can assign RIPEMD160_INIT.
+ *
+ * If it was already initialized, this forgets anything which was
+ * hashed before.
+ *
+ * Example:
+ * static void hash_all(const char **arr, struct ripemd160 *hash)
+ * {
+ *	size_t i;
+ *	struct ripemd160_ctx ctx;
+ *
+ *	ripemd160_init(&ctx);
+ *	for (i = 0; arr[i]; i++)
+ *		ripemd160_update(&ctx, arr[i], strlen(arr[i]));
+ *	ripemd160_done(&ctx, hash);
+ * }
+ */
+void ripemd160_init(struct ripemd160_ctx *ctx);
+
+/**
+ * RIPEMD160_INIT - initializer for an RIPEMD160 context.
+ *
+ * This can be used to staticly initialize an RIPEMD160 context (instead
+ * of ripemd160_init()).
+ *
+ * Example:
+ * static void hash_all(const char **arr, struct ripemd160 *hash)
+ * {
+ *	size_t i;
+ *	struct ripemd160_ctx ctx = RIPEMD160_INIT;
+ *
+ *	for (i = 0; arr[i]; i++)
+ *		ripemd160_update(&ctx, arr[i], strlen(arr[i]));
+ *	ripemd160_done(&ctx, hash);
+ * }
+ */
+#ifdef CCAN_CRYPTO_RIPEMD160_USE_OPENSSL
+#define RIPEMD160_INIT							\
+	{ { 0x67452301ul, 0xEFCDAB89ul, 0x98BADCFEul, 0x10325476ul,	\
+	    0xC3D2E1F0ul,						\
+	    0x0, 0x0,							\
+	    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },		\
+	    0 } }
+#else
+#define RIPEMD160_INIT							\
+	{ { 0x67452301ul, 0xEFCDAB89ul, 0x98BADCFEul, 0x10325476ul,	\
+	    0xC3D2E1F0ul }, 0 }
+#endif
+
+/**
+ * ripemd160_update - include some memory in the hash.
+ * @ctx: the ripemd160_ctx to use
+ * @p: pointer to memory,
+ * @size: the number of bytes pointed to by @p
+ *
+ * You can call this multiple times to hash more data, before calling
+ * ripemd160_done().
+ */
+void ripemd160_update(struct ripemd160_ctx *ctx, const void *p, size_t size);
+
+/**
+ * ripemd160_done - finish RIPEMD160 and return the hash
+ * @ctx: the ripemd160_ctx to complete
+ * @res: the hash to return.
+ *
+ * Note that @ctx is *destroyed* by this, and must be reinitialized.
+ * To avoid that, pass a copy instead.
+ */
+void ripemd160_done(struct ripemd160_ctx *ripemd160, struct ripemd160 *res);
+
+/* Add various types to an RIPEMD160 hash */
+void ripemd160_u8(struct ripemd160_ctx *ctx, uint8_t v);
+void ripemd160_u16(struct ripemd160_ctx *ctx, uint16_t v);
+void ripemd160_u32(struct ripemd160_ctx *ctx, uint32_t v);
+void ripemd160_u64(struct ripemd160_ctx *ctx, uint64_t v);
+
+/* Add as little-endian */
+void ripemd160_le16(struct ripemd160_ctx *ctx, uint16_t v);
+void ripemd160_le32(struct ripemd160_ctx *ctx, uint32_t v);
+void ripemd160_le64(struct ripemd160_ctx *ctx, uint64_t v);
+
+/* Add as big-endian */
+void ripemd160_be16(struct ripemd160_ctx *ctx, uint16_t v);
+void ripemd160_be32(struct ripemd160_ctx *ctx, uint32_t v);
+void ripemd160_be64(struct ripemd160_ctx *ctx, uint64_t v);
+#endif /* CCAN_CRYPTO_RIPEMD160_H */

ccan/crypto/ripemd160/test/run-lotsa-data.c

+#include <ccan/crypto/ripemd160/ripemd160.h>
+/* Include the C files directly. */
+#include <ccan/crypto/ripemd160/ripemd160.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+	struct ripemd160 h, expected;
+	static const char zeroes[1000];
+	size_t i;
+
+	plan_tests(63);
+
+	/* Test different alignments. */
+	ripemd160(&expected, zeroes, sizeof(zeroes) - 64);
+	for (i = 1; i < 64; i++) {
+		ripemd160(&h, zeroes + i, sizeof(zeroes) - 64);
+		ok1(memcmp(&h, &expected, sizeof(h)) == 0);
+	}
+
+	/* This exits depending on whether all tests passed */
+	return exit_status();
+}

ccan/crypto/ripemd160/test/run-test-vectors.c

+#include <ccan/crypto/ripemd160/ripemd160.h>
+/* Include the C files directly. */
+#include <ccan/crypto/ripemd160/ripemd160.c>
+#include <ccan/tap/tap.h>
+
+/* Test vectors. */
+struct test {
+	const char *test;
+	size_t repetitions;
+	beint32_t result[5];
+};
+
+/* Test vectors from: http://homes.esat.kuleuven.be/~bosselae/ripemd160.html */
+static struct test tests[] = {
+	{ "", 1,
+	  { CPU_TO_BE32(0x9c1185a5), CPU_TO_BE32(0xc5e9fc54),
+	    CPU_TO_BE32(0x61280897), CPU_TO_BE32(0x7ee8f548),
+	    CPU_TO_BE32(0xb2258d31) } },
+	{ "abc", 1,
+	  { CPU_TO_BE32(0x8eb208f7), CPU_TO_BE32(0xe05d987a),
+	    CPU_TO_BE32(0x9b044a8e), CPU_TO_BE32(0x98c6b087),
+	    CPU_TO_BE32(0xf15a0bfc) } },
+	{ "message digest", 1,
+	  { CPU_TO_BE32(0x5d0689ef), CPU_TO_BE32(0x49d2fae5),
+	    CPU_TO_BE32(0x72b881b1), CPU_TO_BE32(0x23a85ffa),
+	    CPU_TO_BE32(0x21595f36) } },
+	{ "abcdefghijklmnopqrstuvwxyz", 1,
+	  { CPU_TO_BE32(0xf71c2710), CPU_TO_BE32(0x9c692c1b),
+	    CPU_TO_BE32(0x56bbdceb), CPU_TO_BE32(0x5b9d2865),
+	    CPU_TO_BE32(0xb3708dbc) } },
+	{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 1,
+	  { CPU_TO_BE32(0x12a05338), CPU_TO_BE32(0x4a9c0c88),
+	    CPU_TO_BE32(0xe405a06c), CPU_TO_BE32(0x27dcf49a),
+	    CPU_TO_BE32(0xda62eb2b) } },
+	{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", 1,
+	  { CPU_TO_BE32(0xb0e20b6e), CPU_TO_BE32(0x31166402),
+	    CPU_TO_BE32(0x86ed3a87), CPU_TO_BE32(0xa5713079),
+	    CPU_TO_BE32(0xb21f5189) } },
+	{ "1234567890", 8,
+	  { CPU_TO_BE32(0x9b752e45), CPU_TO_BE32(0x573d4b39),
+	    CPU_TO_BE32(0xf4dbd332), CPU_TO_BE32(0x3cab82bf),
+	    CPU_TO_BE32(0x63326bfb) } },
+	{ "a", 1000000,
+	  { CPU_TO_BE32(0x52783243), CPU_TO_BE32(0xc1697bdb),
+	    CPU_TO_BE32(0xe16d37f9), CPU_TO_BE32(0x7f68f083),
+	    CPU_TO_BE32(0x25dc1528) } }
+};
+
+static bool do_test(const struct test *t, bool single)
+{
+	struct ripemd160 h;
+
+	if (single) {
+		if (t->repetitions != 1)
+			return true;
+		ripemd160(&h, t->test, strlen(t->test));
+	} else {
+		struct ripemd160_ctx ctx = RIPEMD160_INIT;
+		size_t i;
+
+		for (i = 0; i < t->repetitions; i++)
+			ripemd160_update(&ctx, t->test, strlen(t->test));
+		ripemd160_done(&ctx, &h);
+	}
+
+	return memcmp(&h.u, t->result, sizeof(t->result)) == 0;
+}
+
+int main(void)
+{
+	size_t i;
+
+	/* This is how many tests you plan to run */
+	plan_tests(sizeof(tests) / sizeof(struct test) * 2);
+
+	for (i = 0; i < sizeof(tests) / sizeof(struct test); i++)
+		ok1(do_test(&tests[i], false));
+
+	for (i = 0; i < sizeof(tests) / sizeof(struct test); i++)
+		ok1(do_test(&tests[i], true));
+
+	/* This exits depending on whether all tests passed */
+	return exit_status();
+}

ccan/crypto/ripemd160/test/run-types.c

+#include <ccan/crypto/ripemd160/ripemd160.h>
+/* Include the C files directly. */
+#include <ccan/crypto/ripemd160/ripemd160.c>
+#include <ccan/tap/tap.h>
+
+static unsigned char arr[] = {
+	0x12,
+#if HAVE_BIG_ENDIAN
+	/* u16 */
+	0x12, 0x34,
+	/* u32 */
+	0x12, 0x34, 0x56, 0x78,
+	/* u64 */
+	0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
+#else
+	/* u16 */
+	0x34, 0x12,
+	/* u32 */
+	0x78, 0x56, 0x34, 0x12,
+	/* u64 */
+	0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
+#endif
+	/* le16 */
+	0x34, 0x12,
+	/* le32 */
+	0x78, 0x56, 0x34, 0x12,
+	/* le64 */
+	0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
+	/* be16 */
+	0x12, 0x34,
+	/* be32 */
+	0x12, 0x34, 0x56, 0x78,
+	/* be64 */
+	0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0
+};
+
+int main(void)
+{
+	struct ripemd160 h, expected;
+	struct ripemd160_ctx ctx;
+
+	/* This is how many tests you plan to run */
+	plan_tests(1);
+
+	ripemd160_init(&ctx);
+	ripemd160_u8(&ctx, 0x12);
+	ripemd160_u16(&ctx, 0x1234);
+	ripemd160_u32(&ctx, 0x12345678);
+	ripemd160_u64(&ctx, 0x123456789abcdef0ULL);
+	ripemd160_le16(&ctx, 0x1234);
+	ripemd160_le32(&ctx, 0x12345678);
+	ripemd160_le64(&ctx, 0x123456789abcdef0ULL);
+	ripemd160_be16(&ctx, 0x1234);
+	ripemd160_be32(&ctx, 0x12345678);
+	ripemd160_be64(&ctx, 0x123456789abcdef0ULL);
+	ripemd160_done(&ctx, &h);
+
+	ripemd160(&expected, arr, sizeof(arr));
+	ok1(memcmp(&h, &expected, sizeof(h)) == 0);
+
+	/* This exits depending on whether all tests passed */
+	return exit_status();
+}