SHA-2
Revision as of 01:08, 20 November 2013 by Strife Onizuka (talk | contribs) (v1.4 fixes Base64_SHA_256 and adds some conformance testing.)
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Preforms a SHA-2 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 
SHA-2 for more information.
SHA-256
<lsl>////////////////////////////////////////////////////////////////////////////////////// // // UTF-8 SHA-2 256 // Version 1.4 // ESL Compiled: "Nov 20 2013", "04:02:14" // Copyright (C) 2013 Strife Onizuka // Based on Pseudo-code from http://en.wikipedia.org/wiki/SHA2 // 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 v1.0 // // "Nov 20 2013", "04:02:14" // // Copyright (C) 2004-2012, Strife Onizuka (cc-by) // // http://creativecommons.org/licenses/by/3.0/ // //===================================================// //{
string hexc="0123456789ABCDEF";
//} Combined Library
list k1 = [
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174];
list k2 = [
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;
//ORing on the extra bit. Since we are working in base64 the byte bounderies aren't where we want them.
//So we get the last byte group and append our extra bit onto it. It contains either 1, 2, or 3 bytes.
integer j = llSubStringIndex((plain = llStringToBase64(plain))+"=", "=");
integer T = 0x80000000;
if(j) {
j = (6 * (T = j)) & -8;//length in bits
T = llBase64ToInteger(llGetSubString((llGetSubString(plain, -4, (~-(T)))) + "AAAAAA", 0, 5)) | (0x00000080 << ((j % 3) << 3));
}
integer b = ((j + 40) >> 5) | 15;//this works because we want the value to be one less than the next appropriate multiple of 16.
string buf = "AAA";
integer i = -5;
do buf += buf; while((i = -~i));//We need 85, 96 is close enough
//llOwnerSay(llList2CSV([b,j, llStringLength(buf), llIntegerToBase64(j << (6 - ((b % 3) << 1)))]));
plain = llInsertString( llDeleteSubString(plain, -4, -1) +
llGetSubString(llIntegerToBase64(T), 0, 5) + buf, (b << 4) / 3,
llGetSubString(llIntegerToBase64(j >> ((b % 3) << 1)), 0, 5));
//llOwnerSay(llList2CSV([llStringLength(plain), Base64ToHex(plain)]));
list x;
integer S = 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) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x000007F))) +
(G ^ (E & (F ^ G))) +
llList2Integer(k1, 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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((B & C) ^ (B & D) ^ (C & D));
} while(16 > (j = -~j));
// llOwnerSay(llList2CSV(hexm(x)));
j = 0;
do {
x = llList2List(x, -16, -1);
do {
T = llList2Integer(x, -15);
S = llList2Integer(x, -2);
x += (T = llList2Integer(x, -16) +
(((T << 25) | ((T >> 7) & 0x01FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x00003FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x00007FFF)) ^
((S << 13) | ((S >> 19) & 0x00001FFF)) ^
((S >> 10) & 0x03FFFFF)));
// llOwnerSay("W["+(string)(j+16)+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x0000007F))) +
(G ^ (E & (F ^ G))) + llList2Integer(k2, 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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((B & C) ^ (B & D) ^ (C & D));
} while(3 & (j = -~j));
} while(48 > 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 encoded, integer bit_length) {
integer H1 = 0x6a09e667; integer H2 = 0xbb67ae85; integer H3 = 0x3c6ef372; integer H4 = 0xa54ff53a; integer H5 = 0x510e527f; integer H6 = 0x9b05688c; integer H7 = 0x1f83d9ab; integer H8 = 0x5be0cd19;
integer b = ((bit_length + 40) >> 5) | 15;//this works because we want the value to be one less than the next appropriate multiple of 16.
string buf = "AAA";
integer i = -5;
do buf += buf; while((i = -~i));
integer S = (6 * llSubStringIndex((encoded)+"=", "="));
integer T = 0x80000000;
if(bit_length) {
if(S < bit_length) {
encoded = llDeleteSubString(encoded, S, 0x7FFFFFF0);
i = ((bit_length + 23) / 24) * 24;
do
encoded += buf;
while((S += 576) < i);
}
T = 23 - ((~-(bit_length)) % 24);
T = (llBase64ToInteger(llGetSubString((llGetSubString(encoded = llGetSubString(encoded, 0, (bit_length / 6) | 3), -4, (~-(S / 6)))) + "AAAAAA", 0, 5)) & (0xFFFFFF00 << T)) | (0x00000080 << T);
}
//llOwnerSay(llList2CSV([b,j, llStringLength(buf), llIntegerToBase64(j << (6 - ((b % 3) << 1)))]));
encoded = llInsertString( llDeleteSubString(encoded, -4, -1) +
llGetSubString(llIntegerToBase64(T), 0, 5) + buf, (-~((b << 4) / 3)),
llGetSubString(llIntegerToBase64(bit_length << (6 - ((b % 3) << 1))), 0, 5));
//llOwnerSay(llList2CSV([llStringLength(plain), Base64ToHex(plain), T]));
list x;
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(encoded, 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)j+"]="+hex(T));
x += T;
T += H + (((E << 26) | ((E >> 6) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x0000007F))) +
(G ^ (E & (F ^ G))) +
llList2Integer(k1, 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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((B & C) ^ (B & D) ^ (C & D));
} while(16 > (bit_length = -~bit_length));
// llOwnerSay(llList2CSV(hexm(x)));
bit_length = 0;
do {
x = llList2List(x, -16, -1);
do {
T = llList2Integer(x, -15);
S = llList2Integer(x, -2);
x += T = llList2Integer(x, -16) +
(((T << 25) | ((T >> 7) & 0x01FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x00003FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x00007FFF)) ^
((S << 13) | ((S >> 19) & 0x00001FFF)) ^
((S >> 10) & 0x3FFFFF));
// llOwnerSay("W["+(string)(j+16)+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x0000007F))) +
(G ^ (E & (F ^ G))) +
llList2Integer(k2, 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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((B & C) ^ (B & D) ^ (C & D));
} while(3 & (bit_length = -~bit_length));
} while(48 > 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;
}
integer go(string in, string answer) {
llOwnerSay("");
string b = llStringToBase64(in);
integer len = (6 * llSubStringIndex((b)+"=", "=")) & -8;
llResetTime();
string outu = UTF8_SHA_256(in);
float tu = llGetTime();
llOwnerSay(llList2CSV(([outu, tu, len])));
llResetTime();
string outb = Base64_SHA_256(b, len);
float tb = llGetTime();
llOwnerSay(llList2CSV(([outb, tb, len])));
if(answer) {
llOwnerSay(llList2CSV(([answer, (answer == outu),(answer == outb)])));
return (answer == outb) && (answer == outu);
}
return TRUE;
}
default {
state_entry()
{
if(go("1","6B86B273FF34FCE19D6B804EFF5A3F5747ADA4EAA22F1D49C01E52DDB7875B4B"))
if(go("22","785F3EC7EB32F30B90CD0FCF3657D388B5FF4297F2F9716FF66E9B69C05DDD09"))
if(go("333","556D7DC3A115356350F1F9910B1AF1AB0E312D4B3E4FC788D2DA63668F36D017"))
if(go("4444","79F06F8FDE333461739F220090A23CB2A79F6D714BEE100D0E4B4AF249294619"))
if(go("","E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855"))
if(go("foo","2C26B46B68FFC68FF99B453C1D30413413422D706483BFA0F98A5E886266E7AE"))
if(go("abc","BA7816BF8F01CFEA414140DE5DAE2223B00361A396177A9CB410FF61F20015AD"))
if(go("The quick brown fox jumps over the lazy dog","D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592"))
if(go("D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592","D12F3745538D85DDBFD9F3F9D334CE3324BBB7EEF3F5545BD818D93183614E42"))
llOwnerSay("All Tests Passed!");
// llOwnerSay((string)llGetTime());
}
}</lsl>
SHA-224
<lsl>////////////////////////////////////////////////////////////////////////////////////// // // UTF-8 SHA-2 224 // Version 1.4 // ESL Compiled: "Nov 20 2013", "04:01:23" // Copyright (C) 2013 Strife Onizuka // Based on Pseudo-code from http://en.wikipedia.org/wiki/SHA2 // 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 v1.0 // // "Nov 20 2013", "04:01:23" // // Copyright (C) 2004-2012, Strife Onizuka (cc-by) // // http://creativecommons.org/licenses/by/3.0/ // //===================================================// //{
string hexc="0123456789ABCDEF";
//} Combined Library
list k1 = [
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174];
list k2 = [
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;
//ORing on the extra bit. Since we are working in base64 the byte bounderies aren't where we want them.
//So we get the last byte group and append our extra bit onto it. It contains either 1, 2, or 3 bytes.
integer j = llSubStringIndex((plain = llStringToBase64(plain))+"=", "=");
integer T = 0x80000000;
if (j) {
j = (6 * (T = j)) & -8;//length in bits
T = llBase64ToInteger(llGetSubString((llGetSubString(plain, -4, (~-(T)))) + "AAAAAA", 0, 5)) | (0x00000080 << ((j % 3) << 3));
}
integer b = ((j + 40) >> 5) | 15;//this works because we want the value to be one less than the next appropriate multiple of 16.
string buf = "AAA";
integer i = -5;
do buf += buf; while((i = -~i));//We need 85, 96 is close enough
//llOwnerSay(llList2CSV([b,j, llStringLength(buf), llIntegerToBase64(j << (6 - ((b % 3) << 1)))]));
plain = llInsertString( llDeleteSubString(plain, -4, -1) +
llGetSubString(llIntegerToBase64(T), 0, 5) +
buf, (b << 4) / 3,
llGetSubString(llIntegerToBase64(j >> ((b % 3) << 1)), 0, 5));
//llOwnerSay(llList2CSV([llStringLength(plain), Base64ToHex(plain)]));
list x;
integer S = 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) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x0000007F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k1, 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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((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) & 0x01FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x00003FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x00007FFF)) ^
((S << 13) | ((S >> 19) & 0x00001FFF)) ^
((S >> 10) & 0x003FFFFF)))), -16, -1);
// llOwnerSay("W["+(string)j+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x0000007F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k2, j - 16);
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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((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) {
integer H1 = 0xC1059ED8; integer H2 = 0x367CD507; integer H3 = 0x3070DD17; integer H4 = 0xF70E5939; integer H5 = 0xFFC00B31; integer H6 = 0x68581511; integer H7 = 0x64F98FA7; integer H8 = 0xBEFA4FA4;
integer b = ((bit_length + 40) >> 5) | 15;//this works because we want the value to be one less than the next appropriate multiple of 16.
string buf = "AAA";
integer i = -5;
do buf += buf; while((i = -~i));
integer S = (6 * llSubStringIndex((plain)+"=", "="));
integer T = 0x80000000;
if(bit_length) {
if(S < bit_length) {
plain = llDeleteSubString(plain, S, 0x7FFFFFF0);
i = ((bit_length + 23) / 24) * 24;
do
plain += buf;
while((S += 576) < i);
}
T = 23 - ((~-(bit_length)) % 24);
T = (llBase64ToInteger(llGetSubString((llGetSubString(plain = llGetSubString(plain, 0, (bit_length / 6) | 3), -4, (~-(S / 6)))) + "AAAAAA", 0, 5)) & (0xFFFFFF00 << T)) | (0x00000080 << T);
}
//llOwnerSay(llList2CSV([b,j, llStringLength(buf), llIntegerToBase64(j << (6 - ((b % 3) << 1)))]));
plain = llInsertString( llDeleteSubString(plain, -4, -1) +
llGetSubString(llIntegerToBase64(T), 0, 5) + buf, (-~((b << 4) / 3)),
llGetSubString(llIntegerToBase64(bit_length << (6 - ((b % 3) << 1))), 0, 5));
//llOwnerSay(llList2CSV([llStringLength(plain), Base64ToHex(plain), T]));
list x;
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, 6+T)) << (S = (((i + bit_length) % 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) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x0000007F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k1, 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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((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) & 0x01FFFFFF)) ^
((T << 14) | ((T >> 18) & 0x00003FFF)) ^
((T >> 3) & 0x1FFFFFFF)) +
llList2Integer(x, -7) +
(((S << 15) | ((S >> 17) & 0x00007FFF)) ^
((S << 13) | ((S >> 19) & 0x00001FFF)) ^
((S >> 10) & 0x003FFFFF)))), -16, -1);
// llOwnerSay("W["+(string)j+"]="+hex(T));
T += H + (((E << 26) | ((E >> 6) & 0x03FFFFFF)) ^
((E << 21) | ((E >> 11) & 0x001FFFFF)) ^
((E << 7) | ((E >> 25) & 0x0000007F))) +
((E & F) ^ ((~E) & G)) + llList2Integer(k2, bit_length - 16);
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) & 0x0007FFFF)) ^
((B << 10) | ((B >> 22) & 0x000003FF))) +
((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;
}
integer go(string in, string answer) {
llOwnerSay("");
string b = llStringToBase64(in);
integer len = (6 * llSubStringIndex((b)+"=", "=")) & -8;
llResetTime();
string outu = UTF8_SHA_224(in);
float tu = llGetTime();
llOwnerSay(llList2CSV(([outu, tu, len])));
llResetTime();
string outb = Base64_SHA_224(b, len);
float tb = llGetTime();
llOwnerSay(llList2CSV(([outb, tb, len])));
if(answer) {
llOwnerSay(llList2CSV(([answer, (answer == outu),(answer == outb)])));
return (answer == outb) && (answer == outu);
}
return TRUE;
}
default {
state_entry()
{
if(go("","D14A028C2A3A2BC9476102BB288234C415A2B01F828EA62AC5B3E42F"))
if(go("abc","23097D223405D8228642A477BDA255B32AADBCE4BDA0B3F7E36C9DA7"))
if(go("The quick brown fox jumps over the lazy dog","730E109BD7A8A32B1CB9D9A09AA2325D2430587DDBC0C38BAD911525"))
if(go("D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592","24BA6743F9D552F124E741D870690FD7704978D297E202206C02E18F"))
llOwnerSay("All Tests Passed!");
// llOwnerSay((string)llGetTime());
}
}</lsl>