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authorlloyd <[email protected]>2008-09-28 19:29:24 +0000
committerlloyd <[email protected]>2008-09-28 19:29:24 +0000
commit9bcfe627321ddc81691b835dffaa6324ac4684a4 (patch)
treefe5e8ae9813b853549558b59833022e87e83981b /src/hash/md4
parent9822a701516396b7de4e41339faecd48ff8dc8ff (diff)
Move all modules into src/ directory
Diffstat (limited to 'src/hash/md4')
-rw-r--r--src/hash/md4/md4.cpp99
-rw-r--r--src/hash/md4/md4.h33
-rw-r--r--src/hash/md4/modinfo.txt10
3 files changed, 142 insertions, 0 deletions
diff --git a/src/hash/md4/md4.cpp b/src/hash/md4/md4.cpp
new file mode 100644
index 000000000..e2a18f424
--- /dev/null
+++ b/src/hash/md4/md4.cpp
@@ -0,0 +1,99 @@
+/*************************************************
+* MD4 Source File *
+* (C) 1999-2007 Jack Lloyd *
+*************************************************/
+
+#include <botan/md4.h>
+#include <botan/loadstor.h>
+#include <botan/bit_ops.h>
+
+namespace Botan {
+
+namespace {
+
+/*************************************************
+* MD4 FF Function *
+*************************************************/
+inline void FF(u32bit& A, u32bit B, u32bit C, u32bit D, u32bit M, byte S)
+ {
+ A += (D ^ (B & (C ^ D))) + M;
+ A = rotate_left(A, S);
+ }
+
+/*************************************************
+* MD4 GG Function *
+*************************************************/
+inline void GG(u32bit& A, u32bit B, u32bit C, u32bit D, u32bit M, byte S)
+ {
+ A += ((B & C) | (D & (B | C))) + M + 0x5A827999;
+ A = rotate_left(A, S);
+ }
+
+/*************************************************
+* MD4 HH Function *
+*************************************************/
+inline void HH(u32bit& A, u32bit B, u32bit C, u32bit D, u32bit M, byte S)
+ {
+ A += (B ^ C ^ D) + M + 0x6ED9EBA1;
+ A = rotate_left(A, S);
+ }
+
+}
+
+/*************************************************
+* MD4 Compression Function *
+*************************************************/
+void MD4::hash(const byte input[])
+ {
+ for(u32bit j = 0; j != 16; ++j)
+ M[j] = load_le<u32bit>(input, j);
+
+ u32bit A = digest[0], B = digest[1], C = digest[2], D = digest[3];
+
+ FF(A,B,C,D,M[ 0], 3); FF(D,A,B,C,M[ 1], 7); FF(C,D,A,B,M[ 2],11);
+ FF(B,C,D,A,M[ 3],19); FF(A,B,C,D,M[ 4], 3); FF(D,A,B,C,M[ 5], 7);
+ FF(C,D,A,B,M[ 6],11); FF(B,C,D,A,M[ 7],19); FF(A,B,C,D,M[ 8], 3);
+ FF(D,A,B,C,M[ 9], 7); FF(C,D,A,B,M[10],11); FF(B,C,D,A,M[11],19);
+ FF(A,B,C,D,M[12], 3); FF(D,A,B,C,M[13], 7); FF(C,D,A,B,M[14],11);
+ FF(B,C,D,A,M[15],19);
+
+ GG(A,B,C,D,M[ 0], 3); GG(D,A,B,C,M[ 4], 5); GG(C,D,A,B,M[ 8], 9);
+ GG(B,C,D,A,M[12],13); GG(A,B,C,D,M[ 1], 3); GG(D,A,B,C,M[ 5], 5);
+ GG(C,D,A,B,M[ 9], 9); GG(B,C,D,A,M[13],13); GG(A,B,C,D,M[ 2], 3);
+ GG(D,A,B,C,M[ 6], 5); GG(C,D,A,B,M[10], 9); GG(B,C,D,A,M[14],13);
+ GG(A,B,C,D,M[ 3], 3); GG(D,A,B,C,M[ 7], 5); GG(C,D,A,B,M[11], 9);
+ GG(B,C,D,A,M[15],13);
+
+ HH(A,B,C,D,M[ 0], 3); HH(D,A,B,C,M[ 8], 9); HH(C,D,A,B,M[ 4],11);
+ HH(B,C,D,A,M[12],15); HH(A,B,C,D,M[ 2], 3); HH(D,A,B,C,M[10], 9);
+ HH(C,D,A,B,M[ 6],11); HH(B,C,D,A,M[14],15); HH(A,B,C,D,M[ 1], 3);
+ HH(D,A,B,C,M[ 9], 9); HH(C,D,A,B,M[ 5],11); HH(B,C,D,A,M[13],15);
+ HH(A,B,C,D,M[ 3], 3); HH(D,A,B,C,M[11], 9); HH(C,D,A,B,M[ 7],11);
+ HH(B,C,D,A,M[15],15);
+
+ digest[0] += A; digest[1] += B; digest[2] += C; digest[3] += D;
+ }
+
+/*************************************************
+* Copy out the digest *
+*************************************************/
+void MD4::copy_out(byte output[])
+ {
+ for(u32bit j = 0; j != OUTPUT_LENGTH; j += 4)
+ store_le(digest[j/4], output + j);
+ }
+
+/*************************************************
+* Clear memory of sensitive data *
+*************************************************/
+void MD4::clear() throw()
+ {
+ MDx_HashFunction::clear();
+ M.clear();
+ digest[0] = 0x67452301;
+ digest[1] = 0xEFCDAB89;
+ digest[2] = 0x98BADCFE;
+ digest[3] = 0x10325476;
+ }
+
+}
diff --git a/src/hash/md4/md4.h b/src/hash/md4/md4.h
new file mode 100644
index 000000000..4bb5e3903
--- /dev/null
+++ b/src/hash/md4/md4.h
@@ -0,0 +1,33 @@
+/*************************************************
+* MD4 Header File *
+* (C) 1999-2007 Jack Lloyd *
+*************************************************/
+
+#ifndef BOTAN_MD4_H__
+#define BOTAN_MD4_H__
+
+#include <botan/mdx_hash.h>
+
+namespace Botan {
+
+/*************************************************
+* MD4 *
+*************************************************/
+class BOTAN_DLL MD4 : public MDx_HashFunction
+ {
+ public:
+ void clear() throw();
+ std::string name() const { return "MD4"; }
+ HashFunction* clone() const { return new MD4; }
+ MD4() : MDx_HashFunction(16, 64, false, true) { clear(); }
+ private:
+ void hash(const byte[]);
+ void copy_out(byte[]);
+
+ SecureBuffer<u32bit, 48> M;
+ SecureBuffer<u32bit, 4> digest;
+ };
+
+}
+
+#endif
diff --git a/src/hash/md4/modinfo.txt b/src/hash/md4/modinfo.txt
new file mode 100644
index 000000000..6d32dbd90
--- /dev/null
+++ b/src/hash/md4/modinfo.txt
@@ -0,0 +1,10 @@
+realname "MD4"
+
+define MD4
+
+load_on auto
+
+<add>
+md4.cpp
+md4.h
+</add>