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.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();
+}