This patch adds support for RIPEMD-128 and RIPEMD-160
hash algorithms.
Signed-off-by: Adrian-Ken Rueegsegger [EMAIL PROTECTED]
---
crypto/Makefile |2 +
crypto/rmd128.c | 343 +
crypto/rmd160.c | 387 +++
include/crypto/ripemd.h | 26 +++
4 files changed, 758 insertions(+), 0 deletions(-)
create mode 100644 crypto/rmd128.c
create mode 100644 crypto/rmd160.c
create mode 100644 include/crypto/ripemd.h
diff --git a/crypto/Makefile b/crypto/Makefile
index ca02441..c21b455 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -27,6 +27,8 @@ obj-$(CONFIG_CRYPTO_XCBC) += xcbc.o
obj-$(CONFIG_CRYPTO_NULL) += crypto_null.o
obj-$(CONFIG_CRYPTO_MD4) += md4.o
obj-$(CONFIG_CRYPTO_MD5) += md5.o
+obj-$(CONFIG_CRYPTO_RMD160) += rmd128.o
+obj-$(CONFIG_CRYPTO_RMD160) += rmd160.o
obj-$(CONFIG_CRYPTO_SHA1) += sha1_generic.o
obj-$(CONFIG_CRYPTO_SHA256) += sha256_generic.o
obj-$(CONFIG_CRYPTO_SHA512) += sha512_generic.o
diff --git a/crypto/rmd128.c b/crypto/rmd128.c
new file mode 100644
index 000..8f5e3c8
--- /dev/null
+++ b/crypto/rmd128.c
@@ -0,0 +1,343 @@
+/*
+ * Cryptographic API.
+ *
+ * RIPEMD-128 - RACE Integrity Primitives Evaluation Message Digest.
+ *
+ * Based on the reference implementation by Antoon Bosselaers, ESAT-COSIC
+ *
+ * Copyright (c) 2008 Adrian-Ken Rueegsegger rueegsegger (at) swiss-it.ch
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+#include linux/init.h
+#include linux/module.h
+#include linux/mm.h
+#include linux/crypto.h
+#include linux/cryptohash.h
+#include linux/types.h
+#include crypto/ripemd.h
+#include asm/byteorder.h
+
+struct rmd128_ctx {
+ u64 byte_count;
+ u32 state[4];
+ u32 buffer[16];
+};
+
+#define K1 0xUL
+#define K2 0x5a827999UL
+#define K3 0x6ed9eba1UL
+#define K4 0x8f1bbcdcUL
+#define KK1 0x50a28be6UL
+#define KK2 0x5c4dd124UL
+#define KK3 0x6d703ef3UL
+#define KK4 0xUL
+
+#define F1(x, y, z) (x ^ y ^ z)/* XOR */
+#define F2(x, y, z) (z ^ (x (y ^ z)))/* x ? y : z */
+#define F3(x, y, z) ((x | ~y) ^ z)
+#define F4(x, y, z) (y ^ (z (x ^ y)))/* z ? x : y */
+
+#define ROUND(a, b, c, d, f, k, x, s) { \
+ (a) += f((b), (c), (d)) + (x) + (k); \
+ (a) = rol32((a), (s)); \
+}
+
+static void rmd128_transform(u32 *state, u32 const *in)
+{
+ u32 aa, bb, cc, dd, aaa, bbb, ccc, ddd;
+
+ /* Initialize left lane */
+ aa = state[0];
+ bb = state[1];
+ cc = state[2];
+ dd = state[3];
+
+ /* Initialize right lane */
+ aaa = state[0];
+ bbb = state[1];
+ ccc = state[2];
+ ddd = state[3];
+
+ /* round 1: left lane */
+ ROUND(aa, bb, cc, dd, F1, K1, in[0], 11);
+ ROUND(dd, aa, bb, cc, F1, K1, in[1], 14);
+ ROUND(cc, dd, aa, bb, F1, K1, in[2], 15);
+ ROUND(bb, cc, dd, aa, F1, K1, in[3], 12);
+ ROUND(aa, bb, cc, dd, F1, K1, in[4], 5);
+ ROUND(dd, aa, bb, cc, F1, K1, in[5], 8);
+ ROUND(cc, dd, aa, bb, F1, K1, in[6], 7);
+ ROUND(bb, cc, dd, aa, F1, K1, in[7], 9);
+ ROUND(aa, bb, cc, dd, F1, K1, in[8], 11);
+ ROUND(dd, aa, bb, cc, F1, K1, in[9], 13);
+ ROUND(cc, dd, aa, bb, F1, K1, in[10], 14);
+ ROUND(bb, cc, dd, aa, F1, K1, in[11], 15);
+ ROUND(aa, bb, cc, dd, F1, K1, in[12], 6);
+ ROUND(dd, aa, bb, cc, F1, K1, in[13], 7);
+ ROUND(cc, dd, aa, bb, F1, K1, in[14], 9);
+ ROUND(bb, cc, dd, aa, F1, K1, in[15], 8);
+
+ /* round 2: left lane */
+ ROUND(aa, bb, cc, dd, F2, K2, in[7], 7);
+ ROUND(dd, aa, bb, cc, F2, K2, in[4], 6);
+ ROUND(cc, dd, aa, bb, F2, K2, in[13], 8);
+ ROUND(bb, cc, dd, aa, F2, K2, in[1], 13);
+ ROUND(aa, bb, cc, dd, F2, K2, in[10], 11);
+ ROUND(dd, aa, bb, cc, F2, K2, in[6], 9);
+ ROUND(cc, dd, aa, bb, F2, K2, in[15], 7);
+ ROUND(bb, cc, dd, aa, F2, K2, in[3], 15);
+ ROUND(aa, bb, cc, dd, F2, K2, in[12], 7);
+ ROUND(dd, aa, bb, cc, F2, K2, in[0], 12);
+ ROUND(cc, dd, aa, bb, F2, K2, in[9], 15);
+ ROUND(bb, cc, dd, aa, F2, K2, in[5], 9);
+ ROUND(aa, bb, cc, dd, F2, K2, in[2], 11);
+ ROUND(dd, aa, bb, cc, F2, K2, in[14], 7);
+ ROUND(cc, dd, aa, bb, F2, K2, in[11], 13);
+ ROUND(bb, cc, dd, aa, F2, K2, in[8], 12);
+
+ /* round 3: left lane */
+ ROUND(aa, bb, cc, dd, F3, K3, in[3], 11);
+ ROUND(dd, aa, bb, cc, F3, K3, in[10], 13);
+ ROUND(cc, dd, aa, bb, F3, K3, in[14], 6);
+ ROUND(bb, cc, dd, aa, F3, K3, in[4], 7);
+ ROUND(aa, bb, cc, dd, F3, K3, in[9], 14);
+ ROUND(dd, aa, bb, cc, F3, K3, in[15], 9);
+
