--- /dev/null
+/* -*-c-*-
+ *
+ * The RIPEMD-160 message digest function
+ *
+ * (c) 1998 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------*
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * Catacomb is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <mLib/bits.h>
+
+#include "ghash.h"
+#include "ghash-def.h"
+#include "hash.h"
+#include "rmd160.h"
+
+/*----- Main code ---------------------------------------------------------*/
+
+/* --- @rmd160_compress@ --- *
+ *
+ * Arguments: @rmd160_ctx *ctx@ = pointer to context block
+ * @const void *sbuf@ = pointer to buffer of appropriate size
+ *
+ * Returns: ---
+ *
+ * Use: RIPEMD-160 compression function.
+ */
+
+void rmd160_compress(rmd160_ctx *ctx, const void *sbuf)
+{
+ uint32 a, b, c, d, e;
+ uint32 A, B, C, D, E;
+ uint32 buf[16];
+
+ /* --- Fetch the chaining variables --- */
+
+ a = A = ctx->a;
+ b = B = ctx->b;
+ c = C = ctx->c;
+ d = D = ctx->d;
+ e = E = ctx->e;
+
+ /* --- Fetch the buffer contents --- */
+
+ {
+ int i;
+ const octet *p;
+
+ for (i = 0, p = sbuf; i < 16; i++, p += 4)
+ buf[i] = LOAD32_L(p);
+ }
+
+ /* --- Definitions for round functions --- */
+
+#define F(x, y, z) ((x) ^ (y) ^ (z))
+#define G(x, y, z) (((x) & (y)) | (~(x) & (z)))
+#define H(x, y, z) (((x) | ~(y)) ^ (z))
+#define I(x, y, z) (((x) & (z)) | ((y) & ~(z)))
+#define J(x, y, z) ((x) ^ ((y) | ~(z)))
+
+#define T(v, w, x, y, z, i, r, f, k) do { \
+ uint32 _t = v + f(w, x, y) + buf[i] + k; \
+ v = ROL32(_t, r) + z; x = ROL32(x, 10); \
+} while (0)
+
+#define F1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, F, 0x00000000)
+#define G1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, G, 0x5a827999)
+#define H1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, H, 0x6ed9eba1)
+#define I1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, I, 0x8f1bbcdc)
+#define J1(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, J, 0xa953fd4e)
+
+#define F2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, J, 0x50a28be6)
+#define G2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, I, 0x5c4dd124)
+#define H2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, H, 0x6d703ef3)
+#define I2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, G, 0x7a6d76e9)
+#define J2(v, w, x, y, z, i, r) T(v, w, x, y, z, i, r, F, 0x00000000)
+
+ /* --- First the left hand side --- */
+
+ F1(a, b, c, d, e, 0, 11);
+ F1(e, a, b, c, d, 1, 14);
+ F1(d, e, a, b, c, 2, 15);
+ F1(c, d, e, a, b, 3, 12);
+ F1(b, c, d, e, a, 4, 5);
+ F1(a, b, c, d, e, 5, 8);
+ F1(e, a, b, c, d, 6, 7);
+ F1(d, e, a, b, c, 7, 9);
+ F1(c, d, e, a, b, 8, 11);
+ F1(b, c, d, e, a, 9, 13);
+ F1(a, b, c, d, e, 10, 14);
+ F1(e, a, b, c, d, 11, 15);
+ F1(d, e, a, b, c, 12, 6);
+ F1(c, d, e, a, b, 13, 7);
+ F1(b, c, d, e, a, 14, 9);
+ F1(a, b, c, d, e, 15, 8);
+
+ G1(e, a, b, c, d, 7, 7);
+ G1(d, e, a, b, c, 4, 6);
+ G1(c, d, e, a, b, 13, 8);
+ G1(b, c, d, e, a, 1, 13);
+ G1(a, b, c, d, e, 10, 11);
+ G1(e, a, b, c, d, 6, 9);
+ G1(d, e, a, b, c, 15, 7);
+ G1(c, d, e, a, b, 3, 15);
+ G1(b, c, d, e, a, 12, 7);
+ G1(a, b, c, d, e, 0, 12);
+ G1(e, a, b, c, d, 9, 15);
+ G1(d, e, a, b, c, 5, 9);
+ G1(c, d, e, a, b, 2, 11);
+ G1(b, c, d, e, a, 14, 7);
+ G1(a, b, c, d, e, 11, 13);
+ G1(e, a, b, c, d, 8, 12);
+
+ H1(d, e, a, b, c, 3, 11);
+ H1(c, d, e, a, b, 10, 13);
+ H1(b, c, d, e, a, 14, 6);
+ H1(a, b, c, d, e, 4, 7);
+ H1(e, a, b, c, d, 9, 14);
+ H1(d, e, a, b, c, 15, 9);
+ H1(c, d, e, a, b, 8, 13);
+ H1(b, c, d, e, a, 1, 15);
+ H1(a, b, c, d, e, 2, 14);
+ H1(e, a, b, c, d, 7, 8);
+ H1(d, e, a, b, c, 0, 13);
+ H1(c, d, e, a, b, 6, 6);
+ H1(b, c, d, e, a, 13, 5);
+ H1(a, b, c, d, e, 11, 12);
+ H1(e, a, b, c, d, 5, 7);
+ H1(d, e, a, b, c, 12, 5);
+
+ I1(c, d, e, a, b, 1, 11);
+ I1(b, c, d, e, a, 9, 12);
+ I1(a, b, c, d, e, 11, 14);
+ I1(e, a, b, c, d, 10, 15);
+ I1(d, e, a, b, c, 0, 14);
+ I1(c, d, e, a, b, 8, 15);
+ I1(b, c, d, e, a, 12, 9);
+ I1(a, b, c, d, e, 4, 8);
+ I1(e, a, b, c, d, 13, 9);
+ I1(d, e, a, b, c, 3, 14);
+ I1(c, d, e, a, b, 7, 5);
+ I1(b, c, d, e, a, 15, 6);
+ I1(a, b, c, d, e, 14, 8);
+ I1(e, a, b, c, d, 5, 6);
+ I1(d, e, a, b, c, 6, 5);
+ I1(c, d, e, a, b, 2, 12);
+
+ J1(b, c, d, e, a, 4, 9);
+ J1(a, b, c, d, e, 0, 15);
+ J1(e, a, b, c, d, 5, 5);
+ J1(d, e, a, b, c, 9, 11);
+ J1(c, d, e, a, b, 7, 6);
+ J1(b, c, d, e, a, 12, 8);
+ J1(a, b, c, d, e, 2, 13);
+ J1(e, a, b, c, d, 10, 12);
+ J1(d, e, a, b, c, 14, 5);
+ J1(c, d, e, a, b, 1, 12);
+ J1(b, c, d, e, a, 3, 13);
+ J1(a, b, c, d, e, 8, 14);
+ J1(e, a, b, c, d, 11, 11);
+ J1(d, e, a, b, c, 6, 8);
+ J1(c, d, e, a, b, 15, 5);
+ J1(b, c, d, e, a, 13, 6);
+
+ /* --- And then the right hand side --- */
+
+ F2(A, B, C, D, E, 5, 8);
+ F2(E, A, B, C, D, 14, 9);
+ F2(D, E, A, B, C, 7, 9);
+ F2(C, D, E, A, B, 0, 11);
+ F2(B, C, D, E, A, 9, 13);
+ F2(A, B, C, D, E, 2, 15);
+ F2(E, A, B, C, D, 11, 15);
+ F2(D, E, A, B, C, 4, 5);
+ F2(C, D, E, A, B, 13, 7);
+ F2(B, C, D, E, A, 6, 7);
+ F2(A, B, C, D, E, 15, 8);
+ F2(E, A, B, C, D, 8, 11);
+ F2(D, E, A, B, C, 1, 14);
+ F2(C, D, E, A, B, 10, 14);
+ F2(B, C, D, E, A, 3, 12);
+ F2(A, B, C, D, E, 12, 6);
+
+ G2(E, A, B, C, D, 6, 9);
+ G2(D, E, A, B, C, 11, 13);
+ G2(C, D, E, A, B, 3, 15);
+ G2(B, C, D, E, A, 7, 7);
+ G2(A, B, C, D, E, 0, 12);
+ G2(E, A, B, C, D, 13, 8);
+ G2(D, E, A, B, C, 5, 9);
+ G2(C, D, E, A, B, 10, 11);
+ G2(B, C, D, E, A, 14, 7);
+ G2(A, B, C, D, E, 15, 7);
+ G2(E, A, B, C, D, 8, 12);
+ G2(D, E, A, B, C, 12, 7);
+ G2(C, D, E, A, B, 4, 6);
+ G2(B, C, D, E, A, 9, 15);
+ G2(A, B, C, D, E, 1, 13);
+ G2(E, A, B, C, D, 2, 11);
+
+ H2(D, E, A, B, C, 15, 9);
+ H2(C, D, E, A, B, 5, 7);
+ H2(B, C, D, E, A, 1, 15);
+ H2(A, B, C, D, E, 3, 11);
+ H2(E, A, B, C, D, 7, 8);
+ H2(D, E, A, B, C, 14, 6);
+ H2(C, D, E, A, B, 6, 6);
+ H2(B, C, D, E, A, 9, 14);
+ H2(A, B, C, D, E, 11, 12);
+ H2(E, A, B, C, D, 8, 13);
+ H2(D, E, A, B, C, 12, 5);
+ H2(C, D, E, A, B, 2, 14);
+ H2(B, C, D, E, A, 10, 13);
+ H2(A, B, C, D, E, 0, 13);
+ H2(E, A, B, C, D, 4, 7);
+ H2(D, E, A, B, C, 13, 5);
+
+ I2(C, D, E, A, B, 8, 15);
+ I2(B, C, D, E, A, 6, 5);
+ I2(A, B, C, D, E, 4, 8);
+ I2(E, A, B, C, D, 1, 11);
+ I2(D, E, A, B, C, 3, 14);
+ I2(C, D, E, A, B, 11, 14);
+ I2(B, C, D, E, A, 15, 6);
+ I2(A, B, C, D, E, 0, 14);
+ I2(E, A, B, C, D, 5, 6);
+ I2(D, E, A, B, C, 12, 9);
+ I2(C, D, E, A, B, 2, 12);
+ I2(B, C, D, E, A, 13, 9);
+ I2(A, B, C, D, E, 9, 12);
+ I2(E, A, B, C, D, 7, 5);
+ I2(D, E, A, B, C, 10, 15);
+ I2(C, D, E, A, B, 14, 8);
+
+ J2(B, C, D, E, A, 12, 8);
+ J2(A, B, C, D, E, 15, 5);
+ J2(E, A, B, C, D, 10, 12);
+ J2(D, E, A, B, C, 4, 9);
+ J2(C, D, E, A, B, 1, 12);
+ J2(B, C, D, E, A, 5, 5);
+ J2(A, B, C, D, E, 8, 14);
+ J2(E, A, B, C, D, 7, 6);
+ J2(D, E, A, B, C, 6, 8);
+ J2(C, D, E, A, B, 2, 13);
+ J2(B, C, D, E, A, 13, 6);
+ J2(A, B, C, D, E, 14, 5);
+ J2(E, A, B, C, D, 0, 15);
+ J2(D, E, A, B, C, 3, 13);
+ J2(C, D, E, A, B, 9, 11);
+ J2(B, C, D, E, A, 11, 11);
+
+ /* --- Recombine the two halves --- */
+
+ {
+ uint32
+ tmp = 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 = tmp;
+ }
+}
+
+/* --- @rmd160_init@ --- *
+ *
+ * Arguments: @rmd160_ctx *ctx@ = pointer to context block to initialize
+ *
+ * Returns: ---
+ *
+ * Use: Initializes a context block ready for hashing.
+ */
+
+void rmd160_init(rmd160_ctx *ctx)
+{
+ ctx->a = 0x67452301;
+ ctx->b = 0xefcdab89;
+ ctx->c = 0x98badcfe;
+ ctx->d = 0x10325476;
+ ctx->e = 0xc3d2e1f0;
+ ctx->off = 0;
+ ctx->nl = ctx->nh = 0;
+}
+
+/* --- @rmd160_set@ --- *
+ *
+ * Arguments: @rmd160_ctx *ctx@ = pointer to context block
+ * @const void *buf@ = pointer to state buffer
+ * @unsigned long count@ = current count of bytes processed
+ *
+ * Returns: ---
+ *
+ * Use: Initializes a context block from a given state. This is
+ * useful in cases where the initial hash state is meant to be
+ * secret, e.g., for NMAC and HMAC support.
+ */
+
+void rmd160_set(rmd160_ctx *ctx, const void *buf, unsigned long count)
+{
+ const octet *p = buf;
+ ctx->a = LOAD32_L(p + 0);
+ ctx->b = LOAD32_L(p + 4);
+ ctx->c = LOAD32_L(p + 8);
+ ctx->d = LOAD32_L(p + 12);
+ ctx->e = LOAD32_L(p + 16);
+ ctx->off = 0;
+ ctx->nl = U32(count);
+ ctx->nh = U32(((count & ~MASK32) >> 16) >> 16);
+}
+
+/* --- @rmd160_hash@ --- *
+ *
+ * Arguments: @rmd160_ctx *ctx@ = pointer to context block
+ * @const void *buf@ = buffer of data to hash
+ * @size_t sz@ = size of buffer to hash
+ *
+ * Returns: ---
+ *
+ * Use: Hashes a buffer of data. The buffer may be of any size and
+ * alignment.
+ */
+
+void rmd160_hash(rmd160_ctx *ctx, const void *buf, size_t sz)
+{
+ HASH_BUFFER(RMD160, rmd160, ctx, buf, sz);
+}
+
+/* --- @rmd160_done@ --- *
+ *
+ * Arguments: @rmd160_ctx *ctx@ = pointer to context block
+ * @void *hash@ = pointer to output buffer
+ *
+ * Returns: ---
+ *
+ * Use: Returns the hash of the data read so far.
+ */
+
+void rmd160_done(rmd160_ctx *ctx, void *hash)
+{
+ octet *p = hash;
+ HASH_MD5STRENGTH(RMD160, rmd160, ctx);
+ STORE32_L(p + 0, ctx->a);
+ STORE32_L(p + 4, ctx->b);
+ STORE32_L(p + 8, ctx->c);
+ STORE32_L(p + 12, ctx->d);
+ STORE32_L(p + 16, ctx->e);
+}
+
+/* --- @rmd160_state@ --- *
+ *
+ * Arguments: @rmd160_ctx *ctx@ = pointer to context
+ * @void *state@ = pointer to buffer for current state
+ *
+ * Returns: Number of bytes written to the hash function so far.
+ *
+ * Use: Returns the current state of the hash function such that
+ * it can be passed to @rmd160_set@.
+ */
+
+unsigned long rmd160_state(rmd160_ctx *ctx, void *state)
+{
+ octet *p = state;
+ STORE32_L(p + 0, ctx->a);
+ STORE32_L(p + 4, ctx->b);
+ STORE32_L(p + 8, ctx->c);
+ STORE32_L(p + 12, ctx->d);
+ STORE32_L(p + 16, ctx->e);
+ return (ctx->nl | ((ctx->nh << 16) << 16));
+}
+
+/* --- Generic interface --- */
+
+GHASH_DEF(RMD160, rmd160)
+
+/* --- Test code --- */
+
+HASH_TEST(RMD160, rmd160)
+
+/*----- That's all, folks -------------------------------------------------*/
projects / u / mdw / catacomb / blobdiff