Difference between revisions of "SHA-2"
(Reverting to January 2008, last verion that seems to pass tests) |
m (Corrected a small typo in the second sentence.) |
||
| Line 1: | Line 1: | ||
{{LSL Header}}{{RightToc}} | {{LSL Header}}{{RightToc}} | ||
Preforms a SHA2 Hash on the text. Similar to | Preforms a SHA2 Hash on the text. Similar to a MD5 hash, although (slightly) more secure. Two versions of the function are provided, one for UTF-8 Strings (all strings in LSL are UTF-8) and the other is for Base64 Strings (you need to tell it how many bits long the data is). | ||
View http://en.wikipedia.org/wiki/SHA1 for more information. | View http://en.wikipedia.org/wiki/SHA1 for more information. | ||
Revision as of 08:26, 17 November 2013
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Preforms a SHA2 Hash on the text. Similar to a MD5 hash, although (slightly) more secure. Two versions of the function are provided, one for UTF-8 Strings (all strings in LSL are UTF-8) and the other is for Base64 Strings (you need to tell it how many bits long the data is).
View http://en.wikipedia.org/wiki/SHA1 for more information.
SHA-256
<lsl>////////////////////////////////////////////////////////////////////////////////////// // // UTF-8 SHA2-256 // Version 1.1 // ESL Compiled: "Oct 25 2007", "14:34:37" // Copyright (C) 2007 Strife Onizuka // Based on Pseudo-code from http://en.wikipedia.org/wiki/SHA1 // https://wiki.secondlife.com/wiki/SHA2 // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public License // as published by the Free Software Foundation; // version 3 of the License. // // This library 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 Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with this library. If not, see <http://www.gnu.org/licenses/> // or write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, // Boston, MA 02111-1307 USA // //////////////////////////////////////////////////////////////////////////////////////
//===================================================// // Combined Library // // "Oct 25 2007", "14:34:37" // // Copyright (C) 2004-2007, Strife Onizuka (cc-by) // // http://creativecommons.org/licenses/by/3.0/ // //===================================================// //{
string TrimRight(string src, string chrs)//Mono Unsafe, LSO Safe {
integer i = llStringLength(src); do;while(~llSubStringIndex(chrs, llGetSubString(src, (i = ~-i), i)) && i); return llDeleteSubString(src, (-~(i)), 0xFFFF);
}
string hexc="0123456789ABCDEF";
//} Combined Library
list k = [
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2];
string UTF8_SHA_256(string plain) {
integer H1 = 0x6a09e667; integer H2 = 0xbb67ae85; integer H3 = 0x3c6ef372; integer H4 = 0xa54ff53a; integer H5 = 0x510e527f; integer H6 = 0x9b05688c; integer H7 = 0x1f83d9ab; integer H8 = 0x5be0cd19;
//OR on the extra bit. integer j = llStringLength(plain) << 3; integer b = (~-(((j + 552) & -512) >> 5)); integer T = llBase64ToInteger(TrimRight(llGetSubString(plain = llStringToBase64(plain), -4, -1),"=")+"AAAA"); string buf = "AAA"; integer i = -5;
do buf += buf; while((i = -~i));
if(j)
{
i = 0x800000;
if(T & 0xFF00)
i = 0x00000080;
else if(T & 0xFF0000)
i = 0x00008000;
}
else
T = 0x80000000;//T is corrupt because of https://jira.secondlife.com/browse/SVC-104
// llOwnerSay(llList2CSV([i,j]));
plain = llGetSubString( llDeleteSubString(plain, -4, -1) +
llGetSubString(llIntegerToBase64(T | i), 0, 5) +
buf, 0, (b << 4) / 3) +
llIntegerToBase64(j << (6 - ((b % 3) << 1)));
list x;
integer S;
i = 0;
do
{
integer A = H1;
integer B = H2;
integer C = H3;
integer D = H4;
integer E = H5;
integer F = H6;
integer G = H7;
integer H = H8;
x = (list)(j = 0);//the zero gets flushed off the stack by the later loop
do
{
T = llBase64ToInteger(buf = llGetSubString(plain, T = ((i + j) << 4) / 3, T+6)) << (S = (((i + j) % 3) << 1));
if(S)
T = T | (llBase64ToInteger("A"+llDeleteSubString(buf, 0, 1)) >> (6 - S));
// llOwnerSay("W["+(string)j+"]="+hex(T));
x += T;
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, j);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(16 > (j = -~j));
// llOwnerSay(llList2CSV(hexm(x)));
do
{
T = llList2Integer(x, -15);
S = llList2Integer(x, -2);
x = llList2List(x + T = llList2Integer(x, -16) +
(((T << 25) | ((T >> 7) & 0x1FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x3FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x0007FFF)) ^
((S << 13) | ((S >> 19) & 0x1FFF)) ^
((S >> 10) & 0x03FFFFF)), -16, -1);
// llOwnerSay("W["+(string)j+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, j);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(64 > (j = -~j));
H1 += A;
H2 += B;
H3 += C;
H4 += D;
H5 += E;
H6 += F;
H7 += G;
H8 += H;
}while(b > i += 16);
x = [H1, H2, H3, H4, H5, H6, H7, H8];
i = -8;
buf = "";
do
{
T = llList2Integer(x,i);
j = 32;
do
buf += llGetSubString(hexc, b = ((T >> (j -= 4)) & 0xF), b);
while (j);
}while ((i = -~i));
return buf;
}
string Base64_SHA_256(string plain, integer bit_length) {//$[E20009]
integer H1 = 0x6a09e667; integer H2 = 0xbb67ae85; integer H3 = 0x3c6ef372; integer H4 = 0xa54ff53a; integer H5 = 0x510e527f; integer H6 = 0x9b05688c; integer H7 = 0x1f83d9ab; integer H8 = 0x5be0cd19;
//OR on the extra bit. integer b = (~-(((bit_length + 552) & -512) >> 5)); integer T = llBase64ToInteger(TrimRight(llGetSubString(plain = llStringToBase64(plain), -4, -1),"=")+"AAAA"); string buf = "AAA"; integer i = -5;
do buf += buf; while((i = -~i));
if(bit_length)
{
i = 0x800000;
if(T & 0xFF00)
i = 0x00000080;
else if(T & 0xFF0000)
i = 0x00008000;
}
else
T = 0x80000000;//T is corrupt because of https://jira.secondlife.com/browse/SVC-104
// llOwnerSay(llList2CSV([i,bit_length]));
plain = llGetSubString( llDeleteSubString(plain, -4, -1) +
llGetSubString(llIntegerToBase64(T | i), 0, 5) +
buf, 0, (b << 4) / 3) +
llIntegerToBase64(bit_length << (6 - ((b % 3) << 1)));
list x;
integer S;
i = 0;
do
{
integer A = H1;
integer B = H2;
integer C = H3;
integer D = H4;
integer E = H5;
integer F = H6;
integer G = H7;
integer H = H8;
x = (list)(bit_length = 0);//the zero gets flushed off the stack by the later loop
do
{
T = llBase64ToInteger(buf = llGetSubString(plain, T = ((i + bit_length) << 4) / 3, T+6)) << (S = (((i + bit_length) % 3) << 1));
if(S)
T = T | (llBase64ToInteger("A"+llDeleteSubString(buf, 0, 1)) >> (6 - S));
// llOwnerSay("W["+(string)bit_length+"]="+hex(T));
x += T;
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, bit_length);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(16 > (bit_length = -~bit_length));
// llOwnerSay(llList2CSV(hexm(x)));
do
{
T = llList2Integer(x, -15);
S = llList2Integer(x, -2);
x = llList2List(x + T = llList2Integer(x, -16) +
(((T << 25) | ((T >> 7) & 0x1FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x3FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x7FFF)) ^
((S << 13) | ((S >> 19) & 0x1FFF)) ^
((S >> 10) & 0x3FFFFF)), -16, -1);
// llOwnerSay("W["+(string)bit_length+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, bit_length);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(64 > (bit_length = -~bit_length));
H1 += A;
H2 += B;
H3 += C;
H4 += D;
H5 += E;
H6 += F;
H7 += G;
H8 += H;
}while(b > i += 16);
x = [H1, H2, H3, H4, H5, H6, H7, H8];
i = -8;
buf = "";
do
{
T = llList2Integer(x,i);
bit_length = 32;
do
buf += llGetSubString(hexc, b = ((T >> (bit_length -= 4)) & 0xF), b);
while (bit_length);
}while ((i = -~i));
return buf;
}
go(string in, string answer) {
llOwnerSay("");
llResetTime();
string out = UTF8_SHA_256(in);
float t = llGetTime();
llOwnerSay(llList2CSV([out,t,llStringLength(in)]));
if(answer)llOwnerSay(answer);
}
default {
state_entry()
{
go("","E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855");
go("abc","BA7816BF8F01CFEA414140DE5DAE2223B00361A396177A9CB410FF61F20015AD");
go("The quick brown fox jumps over the lazy dog","D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592");
go("D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592","");
// llOwnerSay((string)llGetTime());
}
}</lsl>
SHA-224
<lsl>////////////////////////////////////////////////////////////////////////////////////// // // UTF-8 SHA2-224 // Version 1.1 // ESL Compiled: "Oct 25 2007", "14:34:57" // Copyright (C) 2007 Strife Onizuka // Based on Pseudo-code from http://en.wikipedia.org/wiki/SHA1 // https://wiki.secondlife.com/wiki/SHA2 // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public License // as published by the Free Software Foundation; // version 3 of the License. // // This library 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 Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with this library. If not, see <http://www.gnu.org/licenses/> // or write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, // Boston, MA 02111-1307 USA // //////////////////////////////////////////////////////////////////////////////////////
//===================================================// // Combined Library // // "Oct 25 2007", "14:34:57" // // Copyright (C) 2004-2007, Strife Onizuka (cc-by) // // http://creativecommons.org/licenses/by/3.0/ // //===================================================// //{
string TrimRight(string src, string chrs)//Mono Unsafe, LSO Safe {
integer i = llStringLength(src); do;while(~llSubStringIndex(chrs, llGetSubString(src, (i = ~-i), i)) && i); return llDeleteSubString(src, (-~(i)), 0xFFFF);
}
string hexc="0123456789ABCDEF";
//} Combined Library
list k = [
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2];
string UTF8_SHA_224(string plain) {
integer H1 = 0xC1059ED8; integer H2 = 0x367CD507; integer H3 = 0x3070DD17; integer H4 = 0xF70E5939; integer H5 = 0xFFC00B31; integer H6 = 0x68581511; integer H7 = 0x64F98FA7; integer H8 = 0xBEFA4FA4;
//OR on the extra bit. integer j = llStringLength(plain) << 3; integer b = (~-(((j + 552) & -512) >> 5)); integer T = llBase64ToInteger(TrimRight(llGetSubString(plain = llStringToBase64(plain), -4, -1),"=")+"AAAA"); string buf = "AAA"; integer i = -5;
do buf += buf; while((i = -~i));
if(j)
{
i = 0x800000;
if(T & 0xFF00)
i = 0x00000080;
else if(T & 0xFF0000)
i = 0x00008000;
}
else
T = 0x80000000;//T is corrupt because of https://jira.secondlife.com/browse/SVC-104
// llOwnerSay(llList2CSV([i,j]));
plain = llGetSubString( llDeleteSubString(plain, -4, -1) +
llGetSubString(llIntegerToBase64(T | i), 0, 5) +
buf, 0, (b << 4) / 3) +
llIntegerToBase64(j << (6 - ((b % 3) << 1)));
list x;
integer S;
i = 0;
do
{
integer A = H1;
integer B = H2;
integer C = H3;
integer D = H4;
integer E = H5;
integer F = H6;
integer G = H7;
integer H = H8;
x = (list)(j = 0);//the zero gets flushed off the stack by the later loop
do
{
T = llBase64ToInteger(buf = llGetSubString(plain, T = ((i + j) << 4) / 3, 6+T)) << (S = (((i + j) % 3) << 1));
if(S)
T = T | (llBase64ToInteger("A"+llDeleteSubString(buf, 0, 1)) >> (6 - S));
// llOwnerSay("W["+(string)j+"]="+hex(T));
x += T;
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, j);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(16 > (j = -~j));
// llOwnerSay(llList2CSV(hexm(x)));
do
{
T = llList2Integer(x, -15);
S = llList2Integer(x, -2);
x = llList2List(x + T = llList2Integer(x, -16) +
(((T << 25) | ((T >> 7) & 0x1FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x3FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x0007FFF)) ^
((S << 13) | ((S >> 19) & 0x1FFF)) ^
((S >> 10) & 0x03FFFFF)), -16, -1);
// llOwnerSay("W["+(string)j+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, j);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(64 > (j = -~j));
H1 += A;
H2 += B;
H3 += C;
H4 += D;
H5 += E;
H6 += F;
H7 += G;
H8 += H;
}while(b > i += 16);
x = [H1, H2, H3, H4, H5, H6, H7];//, H8];
i = -7;
buf = "";
do
{
T = llList2Integer(x,i);
j = 32;
do
buf += llGetSubString(hexc, b = ((T >> (j -= 4)) & 0xF), b);
while (j);
}while ((i = -~i));
return buf;
}
string Base64_SHA_224(string plain, integer bit_length) {//$[E20009]
integer H1 = 0xC1059ED8; integer H2 = 0x367CD507; integer H3 = 0x3070DD17; integer H4 = 0xF70E5939; integer H5 = 0xFFC00B31; integer H6 = 0x68581511; integer H7 = 0x64F98FA7; integer H8 = 0xBEFA4FA4;
//OR on the extra bit. integer b = (~-(((bit_length + 552) & -512) >> 5)); integer T = llBase64ToInteger(TrimRight(llGetSubString(plain = llStringToBase64(plain), -4, -1),"=")+"AAAA"); string buf = "AAA"; integer i = -5;
do buf += buf; while((i = -~i));
if(bit_length)
{
i = 0x800000;
if(T & 0xFF00)
i = 0x00000080;
else if(T & 0xFF0000)
i = 0x00008000;
}
else
T = 0x80000000;//T is corrupt because of https://jira.secondlife.com/browse/SVC-104
// llOwnerSay(llList2CSV([i,bit_length]));
plain = llGetSubString( llDeleteSubString(plain, -4, -1) +
llGetSubString(llIntegerToBase64(T | i), 0, 5) +
buf, 0, (b << 4) / 3) +
llIntegerToBase64(bit_length << (6 - ((b % 3) << 1)));
list x;
integer S;
i = 0;
do
{
integer A = H1;
integer B = H2;
integer C = H3;
integer D = H4;
integer E = H5;
integer F = H6;
integer G = H7;
integer H = H8;
x = (list)(bit_length = 0);//the zero gets flushed off the stack by the later loop
do
{
T = llBase64ToInteger(buf = llGetSubString(plain, T = ((i + bit_length) << 4) / 3, T+6)) << (S = (((i + bit_length) % 3) << 1));
if(S)
T = T | (llBase64ToInteger("A"+llDeleteSubString(buf, 0, 1)) >> (6 - S));
// llOwnerSay("W["+(string)bit_length+"]="+hex(T));
x += T;
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, bit_length);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(16 > (bit_length = -~bit_length));
// llOwnerSay(llList2CSV(hexm(x)));
do
{
T = llList2Integer(x, -15);
S = llList2Integer(x, -2);
x = llList2List(x + T = llList2Integer(x, -16) +
(((T << 25) | ((T >> 7) & 0x1FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x3FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x7FFF)) ^
((S << 13) | ((S >> 19) & 0x1FFF)) ^
((S >> 10) & 0x3FFFFF)), -16, -1);
// llOwnerSay("W["+(string)bit_length+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x3FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x1FFFFF)) ^
((E << 7) | ((E >> 25) & 0x7F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k, bit_length);
H = G;
G = F;
F = E;
E = D + T;
D = C;
C = B;
B = A;
A = T + (((B << 30) | ((B >> 2) & 0x3FFFFFFF)) ^
((B << 19) | ((B >> 13) & 0x7FFFF)) ^
((B << 10) | ((B >> 22) & 0x3FF))) +
((B & C) ^ (B & D) ^ (C & D));
}while(64 > (bit_length = -~bit_length));
H1 += A;
H2 += B;
H3 += C;
H4 += D;
H5 += E;
H6 += F;
H7 += G;
H8 += H;
}while(b > i += 16);
x = [H1, H2, H3, H4, H5, H6, H7, H8];
i = -8;
buf = "";
do
{
T = llList2Integer(x,i);
bit_length = 32;
do
buf += llGetSubString(hexc, b = ((T >> (bit_length -= 4)) & 0xF), b);
while (bit_length);
}while ((i = -~i));
return buf;
}
go(string in, string answer) {
llOwnerSay("");
llResetTime();
string out = UTF8_SHA_224(in);
float t = llGetTime();
llOwnerSay(llList2CSV([out,t,llStringLength(in)]));
if(answer)llOwnerSay(answer);
}
default {
state_entry()
{
go("","D14A028C2A3A2BC9476102BB288234C415A2B01F828EA62AC5B3E42F");
go("abc","23097D223405D8228642A477BDA255B32AADBCE4BDA0B3F7E36C9DA7");
go("The quick brown fox jumps over the lazy dog","730E109BD7A8A32B1CB9D9A09AA2325D2430587DDBC0C38BAD911525");
go("D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592","");
// llOwnerSay((string)llGetTime());
}
}</lsl>