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authorAndrey Lihatskiy <alihatskiy@productengine.com>2024-09-23 21:54:25 +0300
committerAndrey Lihatskiy <alihatskiy@productengine.com>2024-09-23 22:08:43 +0300
commit46448f9547102cce3e23c522467ef800c8c266fc (patch)
tree7e0d9f09e0a9049470523fa5b827804a140926f0 /indra/llcommon/llmd5.cpp
parent4274eb591a1b0806f8c73ca16df65ade60db2200 (diff)
parent3747dd9a085e4d75ec21c8048f1269bc3f29e582 (diff)
Merge branch 'develop' into marchcat/b-develop
# Conflicts: # indra/newview/llfeaturemanager.cpp # indra/newview/llviewertexturelist.cpp # indra/newview/llvoicewebrtc.cpp
Diffstat (limited to 'indra/llcommon/llmd5.cpp')
-rw-r--r--indra/llcommon/llmd5.cpp551
1 files changed, 253 insertions, 298 deletions
diff --git a/indra/llcommon/llmd5.cpp b/indra/llcommon/llmd5.cpp
index f64f54c262..e999b8f597 100644
--- a/indra/llcommon/llmd5.cpp
+++ b/indra/llcommon/llmd5.cpp
@@ -68,10 +68,6 @@ documentation and/or software.
*/
-
-
-
-
#include "linden_common.h"
#include "llmd5.h"
@@ -81,232 +77,203 @@ documentation and/or software.
// how many bytes to grab at a time when checking files
const int LLMD5::BLOCK_LEN = 4096;
-
// LLMD5 simple initialization method
-
LLMD5::LLMD5()
{
- init();
+ init();
}
-
-
-
// MD5 block update operation. Continues an MD5 message-digest
// operation, processing another message block, and updating the
// context.
+void LLMD5::update(const uint8_t* input, const size_t input_length)
+{
+ size_t input_index, buffer_index;
+ size_t buffer_space; // how much space is left in buffer
-void LLMD5::update (const uint8_t *input, const size_t input_length) {
-
- size_t input_index, buffer_index;
- size_t buffer_space; // how much space is left in buffer
-
- if (finalized){ // so we can't update!
- std::cerr << "LLMD5::update: Can't update a finalized digest!" << std::endl;
- return;
- }
-
- // Compute number of bytes mod 64
- buffer_index = size_t((count >> 3) & 0x3F);
+ if (finalized)
+ { // so we can't update!
+ std::cerr << "LLMD5::update: Can't update a finalized digest!" << std::endl;
+ return;
+ }
- // Update number of bits
- count += input_length << 3;
+ // Compute number of bytes mod 64
+ buffer_index = size_t((count >> 3) & 0x3F);
- buffer_space = 64 - buffer_index; // how much space is left in buffer
+ // Update number of bits
+ count += input_length << 3;
- // now, transform each 64-byte piece of the input, bypassing the buffer
- if (input == NULL || input_length == 0){
- std::cerr << "LLMD5::update: Invalid input!" << std::endl;
- return;
- }
+ buffer_space = 64 - buffer_index; // how much space is left in buffer
- // Transform as many times as possible.
- if (input_length >= buffer_space) { // ie. we have enough to fill the buffer
- // fill the rest of the buffer and transform
- memcpy( /* Flawfinder: ignore */
- buffer + buffer_index,
- input,
- buffer_space);
- transform (buffer);
+ // now, transform each 64-byte piece of the input, bypassing the buffer
+ if (input == NULL || input_length == 0)
+ {
+ std::cerr << "LLMD5::update: Invalid input!" << std::endl;
+ return;
+ }
- for (input_index = buffer_space; input_index + 63 < input_length;
- input_index += 64)
- transform (input+input_index);
+ // Transform as many times as possible.
+ if (input_length >= buffer_space) // ie. we have enough to fill the buffer
+ {
+ // fill the rest of the buffer and transform
+ memcpy(/* Flawfinder: ignore */
+ buffer + buffer_index,
+ input,
+ buffer_space);
+ transform(buffer);
- buffer_index = 0; // so we can buffer remaining
- }
- else
- input_index=0; // so we can buffer the whole input
+ for (input_index = buffer_space; input_index + 63 < input_length; input_index += 64)
+ transform(input + input_index);
+ buffer_index = 0; // so we can buffer remaining
+ }
+ else
+ input_index = 0; // so we can buffer the whole input
- // and here we do the buffering:
- memcpy(buffer+buffer_index, input+input_index, input_length-input_index); /* Flawfinder: ignore */
+ // and here we do the buffering:
+ memcpy(buffer + buffer_index, input + input_index, input_length - input_index); /* Flawfinder: ignore */
}
-
-
// MD5 update for files.
// Like above, except that it works on files (and uses above as a primitive.)
+void LLMD5::update(FILE* file)
+{
+ unsigned char buffer[BLOCK_LEN]; /* Flawfinder: ignore */
+ int len;
-void LLMD5::update(FILE* file){
-
- unsigned char buffer[BLOCK_LEN]; /* Flawfinder: ignore */
- int len;
-
- while ( (len=(int)fread(buffer, 1, BLOCK_LEN, file)) )
- update(buffer, len);
-
- fclose (file);
+ while ((len = (int)fread(buffer, 1, BLOCK_LEN, file)))
+ update(buffer, len);
+ fclose(file);
}
// MD5 update for istreams.
// Like update for files; see above.
+void LLMD5::update(std::istream& stream)
+{
+ unsigned char buffer[BLOCK_LEN]; /* Flawfinder: ignore */
+ int len;
-void LLMD5::update(std::istream& stream){
-
- unsigned char buffer[BLOCK_LEN]; /* Flawfinder: ignore */
- int len;
-
- while (stream.good()){
- stream.read( (char*)buffer, BLOCK_LEN); /* Flawfinder: ignore */ // note that return value of read is unusable.
- len=(int)stream.gcount();
- update(buffer, len);
- }
-
+ while (stream.good())
+ {
+ stream.read((char*)buffer, BLOCK_LEN); /* Flawfinder: ignore */ // note that return value of read is unusable.
+ len = (int)stream.gcount();
+ update(buffer, len);
+ }
}
-void LLMD5::update(const std::string& s)
+void LLMD5::update(const std::string& s)
{
- update((unsigned char *)s.c_str(),s.length());
+ update((unsigned char*)s.c_str(), s.length());
}
// MD5 finalization. Ends an MD5 message-digest operation, writing the
// the message digest and zeroizing the context.
-
-
-void LLMD5::finalize (){
-
- unsigned char bits[8]; /* Flawfinder: ignore */
- size_t index, padLen;
- static uint8_t PADDING[64]={
- 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+void LLMD5::finalize()
+{
+ unsigned char bits[8]; /* Flawfinder: ignore */
+ size_t index, padLen;
+ static uint8_t PADDING[64] =
+ {
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
- if (finalized){
- std::cerr << "LLMD5::finalize: Already finalized this digest!" << std::endl;
- return;
- }
-
- // Save number of bits.
- // Treat count, a uint64_t, as uint32_t[2].
- encode (bits, reinterpret_cast<uint32_t*>(&count), 8);
+ if (finalized)
+ {
+ std::cerr << "LLMD5::finalize: Already finalized this digest!" << std::endl;
+ return;
+ }
- // Pad out to 56 mod 64.
- index = size_t((count >> 3) & 0x3f);
- padLen = (index < 56) ? (56 - index) : (120 - index);
- update (PADDING, padLen);
+ // Save number of bits.
+ // Treat count, a uint64_t, as uint32_t[2].
+ encode(bits, reinterpret_cast<uint32_t*>(&count), 8);
- // Append length (before padding)
- update (bits, 8);
+ // Pad out to 56 mod 64.
+ index = size_t((count >> 3) & 0x3f);
+ padLen = (index < 56) ? (56 - index) : (120 - index);
+ update(PADDING, padLen);
- // Store state in digest
- encode (digest, state, 16);
+ // Append length (before padding)
+ update(bits, 8);
- // Zeroize sensitive information
- memset (buffer, 0, sizeof(*buffer));
+ // Store state in digest
+ encode(digest, state, 16);
- finalized=1;
+ // Zeroize sensitive information
+ memset(buffer, 0, sizeof(buffer));
+ finalized = true;
}
-
-
-
-LLMD5::LLMD5(FILE *file){
-
- init(); // must be called be all constructors
- update(file);
- finalize ();
+LLMD5::LLMD5(FILE* file)
+{
+ init(); // must be called be all constructors
+ update(file);
+ finalize();
}
-
-
-
-LLMD5::LLMD5(std::istream& stream){
-
- init(); // must called by all constructors
- update (stream);
- finalize();
+LLMD5::LLMD5(std::istream& stream)
+{
+ init(); // must called by all constructors
+ update(stream);
+ finalize();
}
// Digest a string of the format ("%s:%i" % (s, number))
-LLMD5::LLMD5(const unsigned char *string, const unsigned int number)
+LLMD5::LLMD5(const unsigned char* string, const unsigned int number)
{
- const char *colon = ":";
- char tbuf[16]; /* Flawfinder: ignore */
+ const char* colon = ":";
+ char tbuf[16]; /* Flawfinder: ignore */
init();
- update(string, (U32)strlen((const char *) string)); /* Flawfinder: ignore */
- update((const unsigned char *) colon, (U32)strlen(colon)); /* Flawfinder: ignore */
- snprintf(tbuf, sizeof(tbuf), "%i", number); /* Flawfinder: ignore */
- update((const unsigned char *) tbuf, (U32)strlen(tbuf)); /* Flawfinder: ignore */
+ update(string, (U32)strlen((const char*)string)); /* Flawfinder: ignore */
+ update((const unsigned char*)colon, (U32)strlen(colon)); /* Flawfinder: ignore */
+ snprintf(tbuf, sizeof(tbuf), "%i", number); /* Flawfinder: ignore */
+ update((const unsigned char*)tbuf, (U32)strlen(tbuf)); /* Flawfinder: ignore */
finalize();
}
// Digest a string
-LLMD5::LLMD5(const unsigned char *s)
+LLMD5::LLMD5(const unsigned char* s)
{
init();
- update(s, (U32)strlen((const char *) s)); /* Flawfinder: ignore */
+ update(s, (U32)strlen((const char*)s)); /* Flawfinder: ignore */
finalize();
}
-void LLMD5::raw_digest(unsigned char *s) const
+void LLMD5::raw_digest(unsigned char* s) const
{
if (!finalized)
{
- std::cerr << "LLMD5::raw_digest: Can't get digest if you haven't "<<
- "finalized the digest!" << std::endl;
+ std::cerr << "LLMD5::raw_digest: Can't get digest if you haven't "
+ << "finalized the digest!" << std::endl;
s[0] = '\0';
return;
}
- memcpy(s, digest, 16); /* Flawfinder: ignore */
- return;
+ memcpy(s, digest, 16); /* Flawfinder: ignore */
}
-
-
-void LLMD5::hex_digest(char *s) const
+void LLMD5::hex_digest(char* s) const
{
- int i;
-
if (!finalized)
{
- std::cerr << "LLMD5::hex_digest: Can't get digest if you haven't "<<
- "finalized the digest!" <<std::endl;
+ std::cerr << "LLMD5::hex_digest: Can't get digest if you haven't "
+ << "finalized the digest!" << std::endl;
s[0] = '\0';
return;
}
- for (i=0; i<16; i++)
+ for (int i = 0; i < 16; i++)
{
- sprintf(s+i*2, "%02x", digest[i]); /* Flawfinder: ignore */
+ sprintf(s + i * 2, "%02x", digest[i]); /* Flawfinder: ignore */
}
- s[32]='\0';
-
- return;
+ s[32] = '\0';
}
-
-
-
-
-
-std::ostream& operator<<(std::ostream &stream, LLMD5 context)
+std::ostream& operator<<(std::ostream& stream, const LLMD5& context)
{
char s[33]; /* Flawfinder: ignore */
context.hex_digest(s);
@@ -320,7 +287,7 @@ bool operator==(const LLMD5& a, const LLMD5& b)
unsigned char b_guts[16];
a.raw_digest(a_guts);
b.raw_digest(b_guts);
- if (memcmp(a_guts,b_guts,16)==0)
+ if (memcmp(a_guts, b_guts, 16) == 0)
return true;
else
return false;
@@ -328,30 +295,27 @@ bool operator==(const LLMD5& a, const LLMD5& b)
bool operator!=(const LLMD5& a, const LLMD5& b)
{
- return !(a==b);
+ return !(a == b);
}
// PRIVATE METHODS:
+void LLMD5::init()
+{
+ finalized = false; // we just started!
-void LLMD5::init(){
- finalized=0; // we just started!
-
- // Nothing counted, so count=0
- count = 0;
+ // Nothing counted, so count=0
+ count = 0;
- // Load magic initialization constants.
- state[0] = 0x67452301;
- state[1] = 0xefcdab89;
- state[2] = 0x98badcfe;
- state[3] = 0x10325476;
+ // Load magic initialization constants.
+ state[0] = 0x67452301;
+ state[1] = 0xefcdab89;
+ state[2] = 0x98badcfe;
+ state[3] = 0x10325476;
}
-
-
// Constants for MD5Transform routine.
// Although we could use C++ style constants, defines are actually better,
// since they let us easily evade scope clashes.
-
#define S11 7
#define S12 12
#define S13 17
@@ -381,153 +345,144 @@ void LLMD5::init(){
/* ROTATE_LEFT rotates x left n bits.
*/
-#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
+#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
Rotation is separate from addition to prevent recomputation.
*/
-#define FF(a, b, c, d, x, s, ac) { \
- (a) += F ((b), (c), (d)) + (x) + (U32)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-#define GG(a, b, c, d, x, s, ac) { \
- (a) += G ((b), (c), (d)) + (x) + (U32)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-#define HH(a, b, c, d, x, s, ac) { \
- (a) += H ((b), (c), (d)) + (x) + (U32)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-#define II(a, b, c, d, x, s, ac) { \
- (a) += I ((b), (c), (d)) + (x) + (U32)(ac); \
- (a) = ROTATE_LEFT ((a), (s)); \
- (a) += (b); \
- }
-
-
+#define FF(a, b, c, d, x, s, ac) \
+ { \
+ (a) += F((b), (c), (d)) + (x) + (U32)(ac); \
+ (a) = ROTATE_LEFT((a), (s)); \
+ (a) += (b); \
+ }
+#define GG(a, b, c, d, x, s, ac) \
+ { \
+ (a) += G((b), (c), (d)) + (x) + (U32)(ac); \
+ (a) = ROTATE_LEFT((a), (s)); \
+ (a) += (b); \
+ }
+#define HH(a, b, c, d, x, s, ac) \
+ { \
+ (a) += H((b), (c), (d)) + (x) + (U32)(ac); \
+ (a) = ROTATE_LEFT((a), (s)); \
+ (a) += (b); \
+ }
+#define II(a, b, c, d, x, s, ac) \
+ { \
+ (a) += I((b), (c), (d)) + (x) + (U32)(ac); \
+ (a) = ROTATE_LEFT((a), (s)); \
+ (a) += (b); \
+ }
// LLMD5 basic transformation. Transforms state based on block.
-void LLMD5::transform (const U8 block[64]){
-
- uint32_t a = state[0], b = state[1], c = state[2], d = state[3], x[16];
-
- decode (x, block, 64);
-
- assert(!finalized); // not just a user error, since the method is private
-
- /* Round 1 */
- FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
- FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
- FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
- FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
- FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
- FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
- FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
- FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
- FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
- FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
- FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
- FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
- FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
- FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
- FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
- FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
-
- /* Round 2 */
- GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
- GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
- GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
- GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
- GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
- GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */
- GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
- GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
- GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
- GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
- GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
- GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
- GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
- GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
- GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
- GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
-
- /* Round 3 */
- HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
- HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
- HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
- HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
- HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
- HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
- HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
- HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
- HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
- HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
- HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
- HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
- HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
- HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
- HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
- HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
-
- /* Round 4 */
- II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
- II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
- II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
- II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
- II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
- II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
- II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
- II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
- II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
- II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
- II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
- II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
- II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
- II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
- II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
- II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
-
- state[0] += a;
- state[1] += b;
- state[2] += c;
- state[3] += d;
-
- // Zeroize sensitive information.
- memset ( (uint8_t *) x, 0, sizeof(x));
-
+void LLMD5::transform(const U8 block[64])
+{
+ uint32_t a = state[0], b = state[1], c = state[2], d = state[3], x[16];
+
+ decode(x, block, 64);
+
+ assert(!finalized); // not just a user error, since the method is private
+
+ /* Round 1 */
+ FF(a, b, c, d, x[0], S11, 0xd76aa478); /* 1 */
+ FF(d, a, b, c, x[1], S12, 0xe8c7b756); /* 2 */
+ FF(c, d, a, b, x[2], S13, 0x242070db); /* 3 */
+ FF(b, c, d, a, x[3], S14, 0xc1bdceee); /* 4 */
+ FF(a, b, c, d, x[4], S11, 0xf57c0faf); /* 5 */
+ FF(d, a, b, c, x[5], S12, 0x4787c62a); /* 6 */
+ FF(c, d, a, b, x[6], S13, 0xa8304613); /* 7 */
+ FF(b, c, d, a, x[7], S14, 0xfd469501); /* 8 */
+ FF(a, b, c, d, x[8], S11, 0x698098d8); /* 9 */
+ FF(d, a, b, c, x[9], S12, 0x8b44f7af); /* 10 */
+ FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
+ FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
+ FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
+ FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
+ FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
+ FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
+
+ /* Round 2 */
+ GG(a, b, c, d, x[1], S21, 0xf61e2562); /* 17 */
+ GG(d, a, b, c, x[6], S22, 0xc040b340); /* 18 */
+ GG(c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
+ GG(b, c, d, a, x[0], S24, 0xe9b6c7aa); /* 20 */
+ GG(a, b, c, d, x[5], S21, 0xd62f105d); /* 21 */
+ GG(d, a, b, c, x[10], S22, 0x2441453); /* 22 */
+ GG(c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
+ GG(b, c, d, a, x[4], S24, 0xe7d3fbc8); /* 24 */
+ GG(a, b, c, d, x[9], S21, 0x21e1cde6); /* 25 */
+ GG(d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
+ GG(c, d, a, b, x[3], S23, 0xf4d50d87); /* 27 */
+ GG(b, c, d, a, x[8], S24, 0x455a14ed); /* 28 */
+ GG(a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
+ GG(d, a, b, c, x[2], S22, 0xfcefa3f8); /* 30 */
+ GG(c, d, a, b, x[7], S23, 0x676f02d9); /* 31 */
+ GG(b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
+
+ /* Round 3 */
+ HH(a, b, c, d, x[5], S31, 0xfffa3942); /* 33 */
+ HH(d, a, b, c, x[8], S32, 0x8771f681); /* 34 */
+ HH(c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
+ HH(b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
+ HH(a, b, c, d, x[1], S31, 0xa4beea44); /* 37 */
+ HH(d, a, b, c, x[4], S32, 0x4bdecfa9); /* 38 */
+ HH(c, d, a, b, x[7], S33, 0xf6bb4b60); /* 39 */
+ HH(b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
+ HH(a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
+ HH(d, a, b, c, x[0], S32, 0xeaa127fa); /* 42 */
+ HH(c, d, a, b, x[3], S33, 0xd4ef3085); /* 43 */
+ HH(b, c, d, a, x[6], S34, 0x4881d05); /* 44 */
+ HH(a, b, c, d, x[9], S31, 0xd9d4d039); /* 45 */
+ HH(d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
+ HH(c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
+ HH(b, c, d, a, x[2], S34, 0xc4ac5665); /* 48 */
+
+ /* Round 4 */
+ II(a, b, c, d, x[0], S41, 0xf4292244); /* 49 */
+ II(d, a, b, c, x[7], S42, 0x432aff97); /* 50 */
+ II(c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
+ II(b, c, d, a, x[5], S44, 0xfc93a039); /* 52 */
+ II(a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
+ II(d, a, b, c, x[3], S42, 0x8f0ccc92); /* 54 */
+ II(c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
+ II(b, c, d, a, x[1], S44, 0x85845dd1); /* 56 */
+ II(a, b, c, d, x[8], S41, 0x6fa87e4f); /* 57 */
+ II(d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
+ II(c, d, a, b, x[6], S43, 0xa3014314); /* 59 */
+ II(b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
+ II(a, b, c, d, x[4], S41, 0xf7537e82); /* 61 */
+ II(d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
+ II(c, d, a, b, x[2], S43, 0x2ad7d2bb); /* 63 */
+ II(b, c, d, a, x[9], S44, 0xeb86d391); /* 64 */
+
+ state[0] += a;
+ state[1] += b;
+ state[2] += c;
+ state[3] += d;
+
+ // Zeroize sensitive information.
+ memset(x, 0, sizeof(x));
}
-
-
// Encodes input (uint32_t) into output (unsigned char). Assumes len is
// a multiple of 4.
-void LLMD5::encode (uint8_t *output, const uint32_t *input, const size_t len) {
-
- size_t i, j;
-
- for (i = 0, j = 0; j < len; i++, j += 4) {
- output[j] = (uint8_t) (input[i] & 0xff);
- output[j+1] = (uint8_t) ((input[i] >> 8) & 0xff);
- output[j+2] = (uint8_t) ((input[i] >> 16) & 0xff);
- output[j+3] = (uint8_t) ((input[i] >> 24) & 0xff);
- }
+void LLMD5::encode(uint8_t* output, const uint32_t* input, const size_t len)
+{
+ for (size_t i = 0, j = 0; j < len; i++, j += 4)
+ {
+ output[j] = (uint8_t)(input[i] & 0xff);
+ output[j + 1] = (uint8_t)((input[i] >> 8) & 0xff);
+ output[j + 2] = (uint8_t)((input[i] >> 16) & 0xff);
+ output[j + 3] = (uint8_t)((input[i] >> 24) & 0xff);
+ }
}
-
-
-
// Decodes input (unsigned char) into output (uint32_t). Assumes len is
// a multiple of 4.
-void LLMD5::decode (uint32_t *output, const uint8_t *input, const size_t len){
-
- size_t i, j;
-
- for (i = 0, j = 0; j < len; i++, j += 4)
- output[i] = ((uint32_t)input[j]) | (((uint32_t)input[j+1]) << 8) |
- (((uint32_t)input[j+2]) << 16) | (((uint32_t)input[j+3]) << 24);
+void LLMD5::decode(uint32_t* output, const uint8_t* input, const size_t len)
+{
+ for (size_t i = 0, j = 0; j < len; i++, j += 4)
+ output[i] = ((uint32_t)input[j]) | (((uint32_t)input[j+1]) << 8) |
+ (((uint32_t)input[j+2]) << 16) | (((uint32_t)input[j+3]) << 24);
}
-
-