initital commit
This commit is contained in:
commit
826aad7786
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.dub
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docs.json
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__dummy.html
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*.o
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*.obj
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name "learncrypt"
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description "A small application to learn programming crypto"
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copyright "Copyright © 2016, Johannes Loher"
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authors "Johannes Loher"
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module actions;
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import std.stdio;
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import std.base64: Base64;
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import std.random : Random, uniform;
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import std.algorithm : joiner;
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import cipher;
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public:
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enum chunkSize = 4096;
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enum string randomDeviceName = "/dev/random";
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void encrypt(string keyFileName, Cipher cipher, bool armor)
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{
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auto key = loadKey(keyFileName, armor);
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ubyte[8] nonce;
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if(armor)
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{
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ubyte[] buf;
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foreach(b; stdin.byChunk(chunkSize).joiner.cipherFunction(key, nonce, cipher))
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{
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buf ~= [b];
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if(buf.length == 57)
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{
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stdout.writeln(Base64.encode(buf));
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buf = [];
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}
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}
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if(buf !is null)
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stdout.writeln(Base64.encode(buf));
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}
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else
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{
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foreach(b; stdin.byChunk(chunkSize).joiner.cipherFunction(key, nonce, cipher))
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stdout.rawWrite([b]);
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}
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}
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void decrypt(string keyFileName, Cipher cipher, bool armor)
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{
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auto key = loadKey(keyFileName, armor);
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ubyte[8] nonce;
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if(armor)
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{
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ubyte[] buf;
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foreach(b; Base64.decoder(stdin.byLine).joiner.cipherFunction(key, nonce, cipher))
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{
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stdout.rawWrite([b]);
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}
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}
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else
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{
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foreach(b; stdin.byChunk(chunkSize).joiner.cipherFunction(key, nonce, cipher))
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stdout.rawWrite([b]);
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}
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}
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void generateKey(bool armor)
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{
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auto rng = Random();
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auto randomDevice = File(randomDeviceName, "r");
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scope(exit) randomDevice.close();
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uint[1] seed;
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randomDevice.rawRead(seed);
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rng.seed(seed[0]);
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ubyte[32] key;
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foreach (ref b; key)
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b = uniform!ubyte(rng);
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if(armor)
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{
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writeln(Base64.encode(key));
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}
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else
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{
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stdout.rawWrite(key);
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}
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}
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private:
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ubyte[32] loadKey(string filename, bool armor)
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{
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auto keyFile = File(filename, "r");
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ubyte[32] key;
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if(armor)
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{
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ubyte[] tempKey;
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foreach(line; keyFile.byLine)
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tempKey ~= Base64.decode(line);
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key = tempKey;
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}
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else
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{
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keyFile.rawRead(key);
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}
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return key;
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}
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@ -0,0 +1,72 @@
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import std.getopt;
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import std.string : format;
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import std.stdio: stderr, writeln;
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import cipher : Cipher;
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import actions;
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int main(string[] args)
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{
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bool[string] actions = [ "genKey" : false,
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"encrypt" : false,
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"decrypt" : false ];
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Cipher cipher = Cipher.chacha20;
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string keyFileName = "symkey.asc";
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bool armor;
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auto helpInformation = getopt(
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args,
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std.getopt.config.bundling,
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"gen-key|g", "Generate a new 256 bit key.", &actions["genKey"],
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"encrypt|e", "Encrypt a message.", &actions["encrypt"],
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"decrypt|d", "Decrypt a message.", &actions["decrypt"],
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"cipher|c", "The cipher to use (default: %s).".format(cipher), &cipher,
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"key|k", "The file which contains the key (default: %s).".format(keyFileName), &keyFileName,
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"armor|a", "use ascii-armored I/O.", &armor);
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size_t numberOfActions;
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foreach(value; actions.values)
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numberOfActions += value;
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if(numberOfActions == 1)
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{
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try
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{
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if(actions["genKey"])
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{
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generateKey(armor);
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}
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else if(actions["encrypt"])
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{
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encrypt(keyFileName, cipher, armor);
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}
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else if(actions["decrypt"])
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{
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decrypt(keyFileName, cipher, armor);
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}
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}
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catch(Exception e)
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{
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stderr.writeln(e.msg);
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return 1;
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}
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}
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else
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{
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helpInformation.helpWanted = true;
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}
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if(helpInformation.helpWanted)
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{
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defaultGetoptPrinter("Usage: mycrypt [options]\n\nCommon options:",
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helpInformation.options[$-1..$]);
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defaultGetoptPrinter("\nGlobal options:",
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helpInformation.options[$-2..$-1]);
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defaultGetoptPrinter("\nActions:",
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helpInformation.options[0..3]);
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defaultGetoptPrinter("\nAction options:",
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helpInformation.options[3..5]);
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}
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return 0;
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}
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@ -0,0 +1,375 @@
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module chacha20;
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private import std.traits : isUnsigned;
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private import std.string : format;
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private import std.range : isInputRange, isForwardRange, ElementType;
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private import std.bitmanip : nativeToLittleEndian, littleEndianToNative;
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private import std.array;
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public:
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// TODO: Create unittests!!!!
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auto chacha20Cipher(R)(R range, ubyte[32] key, ubyte[8] nonce)
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if(isInputRange!R && is(ElementType!R : ubyte))
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{
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static struct rangeResult
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{
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private:
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ubyte[32] key;
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ubyte[8] nonce;
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ulong count;
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R range;
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ubyte[] salsaSection;
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public:
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this(R range, in ubyte[32] key, in ubyte[8] nonce)
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{
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this.range = range;
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this.key = key;
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this.nonce = nonce;
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this.count = 0;
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salsaSection = salsa20Exp(key, nonce ~ littleEndianInv(count));
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}
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bool empty() @property
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{
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return range.empty || (count == ulong.max && salsaSection.empty);
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}
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ubyte front() @property
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{
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assert(!empty);
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return range.front ^ salsaSection.front;
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}
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void popFront()
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{
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assert(!empty);
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salsaSection.popFront();
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if(salsaSection.empty)
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{
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++count;
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salsaSection = salsa20Exp(key, nonce ~ littleEndianInv(count));
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}
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range.popFront();
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}
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static if(isForwardRange!R)
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{
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auto save() @property
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{
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rangeResult copy;
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copy.range = range.save;
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copy.key = key.dup;
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copy.nonce = nonce.dup;
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copy.count = count;
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copy.salsaSection = salsaSection.dup;
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return copy;
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}
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}
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}
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return rangeResult(range, key, nonce);
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}
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private:
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UIntType rotateLeft(UIntType)(in UIntType val, in size_t len) nothrow @nogc pure
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if(isUnsigned!UIntType)
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{
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auto reducedLen = len % (8 * UIntType.sizeof);
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// TODO: ensure the compiler does not create different code paths here
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return cast(UIntType)((val << reducedLen) | (val >> (8 * UIntType.sizeof - reducedLen)));
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}
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enum string quarterRound(alias _x0, alias _x1, alias _x2, alias _x3) = q{
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%1$s += %2$s; %4$s ^= %1$s; %4$s = rotateLeft(%4$s, 16);
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%3$s += %4$s; %2$s ^= %3$s; %2$s = rotateLeft(%2$s, 12);
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%1$s += %2$s; %4$s ^= %1$s; %4$s = rotateLeft(%4$s, 8);
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%3$s += %4$s; %2$s ^= %3$s; %2$s = rotateLeft(%2$s, 7);
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}.format(__traits(identifier, _x0), __traits(identifier, _x1),
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__traits(identifier, _x2), __traits(identifier, _x3));
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/*unittest
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{
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uint a1 = 0x00000000, a2 = 0x00000000, a3 = 0x00000000, a4 = 0x00000000,
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b1 = 0x00000001, b2 = 0x00000000, b3 = 0x00000000, b4 = 0x00000000,
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c1 = 0x00000000, c2 = 0x00000001, c3 = 0x00000000, c4 = 0x00000000,
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d1 = 0x00000000, d2 = 0x00000000, d3 = 0x00000001, d4 = 0x00000000,
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e1 = 0x00000000, e2 = 0x00000000, e3 = 0x00000000, e4 = 0x00000001,
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f1 = 0xe7e8c006, f2 = 0xc4f9417d, f3 = 0x6479b4b2, f4 = 0x68c67137,
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g1 = 0xd3917c5b, g2 = 0x55f1c407, g3 = 0x52a58a7a, g4 = 0x8f887a3b;
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mixin(quarterRound!(a1, a2, a3, a4));
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mixin(quarterRound!(b1, b2, b3, b4));
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mixin(quarterRound!(c1, c2, c3, c4));
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mixin(quarterRound!(d1, d2, d3, d4));
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mixin(quarterRound!(e1, e2, e3, e4));
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mixin(quarterRound!(f1, f2, f3, f4));
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mixin(quarterRound!(g1, g2, g3, g4));
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assert([a1, a2, a3, a4] == [0x00000000, 0x00000000, 0x00000000, 0x00000000]);
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assert([b1, b2, b3, b4] == [0x08008145, 0x00000080, 0x00010200, 0x20500000]);
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assert([c1, c2, c3, c4] == [0x88000100, 0x00000001, 0x00000200, 0x00402000]);
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assert([d1, d2, d3, d4] == [0x80040000, 0x00000000, 0x00000001, 0x00002000]);
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assert([e1, e2, e3, e4] == [0x00048044, 0x00000080, 0x00010000, 0x20100001]);
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assert([f1, f2, f3, f4] == [0xe876d72b, 0x9361dfd5, 0xf1460244, 0x948541a3]);
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assert([g1, g2, g3, g4] == [0x3e2f308c, 0xd90a8f36, 0x6ab2a923, 0x2883524c]);
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}*/
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enum string rowRound(alias _x00, alias _x01, alias _x02, alias _x03,
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alias _x04, alias _x05, alias _x06, alias _x07,
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alias _x08, alias _x09, alias _x10, alias _x11,
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alias _x12, alias _x13, alias _x14, alias _x15,) = q{
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mixin(quarterRound!(%1$s, %6$s, %11$s, %16$s));
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mixin(quarterRound!(%2$s, %7$s, %12$s, %13$s));
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mixin(quarterRound!(%3$s, %8$s, %9$s, %14$s));
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mixin(quarterRound!(%4$s, %5$s, %10$s, %15$s));
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}.format(__traits(identifier, _x00), __traits(identifier, _x01),
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__traits(identifier, _x02), __traits(identifier, _x03),
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||||
__traits(identifier, _x04), __traits(identifier, _x05),
|
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__traits(identifier, _x06), __traits(identifier, _x07),
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__traits(identifier, _x08), __traits(identifier, _x09),
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||||
__traits(identifier, _x10), __traits(identifier, _x11),
|
||||
__traits(identifier, _x12), __traits(identifier, _x13),
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__traits(identifier, _x14), __traits(identifier, _x15));
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/*unittest
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||||
{
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uint y00 = 0x00000001, y01 = 0x00000000, y02 = 0x00000000, y03 = 0x00000000,
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y04 = 0x00000001, y05 = 0x00000000, y06 = 0x00000000, y07 = 0x00000000,
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||||
y08 = 0x00000001, y09 = 0x00000000, y10 = 0x00000000, y11 = 0x00000000,
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||||
y12 = 0x00000001, y13 = 0x00000000, y14 = 0x00000000, y15 = 0x00000000;
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||||
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||||
uint x00 = 0x08521bd6, x01 = 0x1fe88837, x02 = 0xbb2aa576, x03 = 0x3aa26365,
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x04 = 0xc54c6a5b, x05 = 0x2fc74c2f, x06 = 0x6dd39cc3, x07 = 0xda0a64f6,
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||||
x08 = 0x90a2f23d, x09 = 0x067f95a6, x10 = 0x06b35f61, x11 = 0x41e4732e,
|
||||
x12 = 0xe859c100, x13 = 0xea4d84b7, x14 = 0x0f619bff, x15 = 0xbc6e965a;
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||||
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||||
mixin(rowRound!(y00, y01, y02, y03, y04, y05, y06, y07,
|
||||
y08, y09, y10, y11, y12, y13, y14, y15));
|
||||
|
||||
mixin(rowRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
|
||||
uint[] test0 = [y00, y01, y02, y03, y04, y05, y06, y07,
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||||
y08, y09, y10, y11, y12, y13, y14, y15];
|
||||
|
||||
uint[] test1 = [x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15];
|
||||
|
||||
assert(test0 == [0x08008145, 0x00000080, 0x00010200, 0x20500000,
|
||||
0x20100001, 0x00048044, 0x00000080, 0x00010000,
|
||||
0x00000001, 0x00002000, 0x80040000, 0x00000000,
|
||||
0x00000001, 0x00000200, 0x00402000, 0x88000100]);
|
||||
|
||||
assert(test1 == [0xa890d39d, 0x65d71596, 0xe9487daa, 0xc8ca6a86,
|
||||
0x949d2192, 0x764b7754, 0xe408d9b9, 0x7a41b4d1,
|
||||
0x3402e183, 0x3c3af432, 0x50669f96, 0xd89ef0a8,
|
||||
0x0040ede5, 0xb545fbce, 0xd257ed4f, 0x1818882d]);
|
||||
}*/
|
||||
|
||||
enum string colRound(alias _x00, alias _x01, alias _x02, alias _x03,
|
||||
alias _x04, alias _x05, alias _x06, alias _x07,
|
||||
alias _x08, alias _x09, alias _x10, alias _x11,
|
||||
alias _x12, alias _x13, alias _x14, alias _x15,) = q{
|
||||
mixin(quarterRound!(%1$s, %5$s, %9$s, %13$s));
|
||||
mixin(quarterRound!(%2$s, %6$s, %10$s, %14$s));
|
||||
mixin(quarterRound!(%3$s, %7$s, %11$s, %15$s));
|
||||
mixin(quarterRound!(%4$s, %8$s, %12$s, %16$s));
|
||||
}.format(__traits(identifier, _x00), __traits(identifier, _x01),
|
||||
__traits(identifier, _x02), __traits(identifier, _x03),
|
||||
__traits(identifier, _x04), __traits(identifier, _x05),
|
||||
__traits(identifier, _x06), __traits(identifier, _x07),
|
||||
__traits(identifier, _x08), __traits(identifier, _x09),
|
||||
__traits(identifier, _x10), __traits(identifier, _x11),
|
||||
__traits(identifier, _x12), __traits(identifier, _x13),
|
||||
__traits(identifier, _x14), __traits(identifier, _x15));
|
||||
|
||||
/*unittest{
|
||||
uint y00 = 0x00000001, y01 = 0x00000000, y02 = 0x00000000, y03 = 0x00000000,
|
||||
y04 = 0x00000001, y05 = 0x00000000, y06 = 0x00000000, y07 = 0x00000000,
|
||||
y08 = 0x00000001, y09 = 0x00000000, y10 = 0x00000000, y11 = 0x00000000,
|
||||
y12 = 0x00000001, y13 = 0x00000000, y14 = 0x00000000, y15 = 0x00000000;
|
||||
|
||||
uint x00 = 0x08521bd6, x01 = 0x1fe88837, x02 = 0xbb2aa576, x03 = 0x3aa26365,
|
||||
x04 = 0xc54c6a5b, x05 = 0x2fc74c2f, x06 = 0x6dd39cc3, x07 = 0xda0a64f6,
|
||||
x08 = 0x90a2f23d, x09 = 0x067f95a6, x10 = 0x06b35f61, x11 = 0x41e4732e,
|
||||
x12 = 0xe859c100, x13 = 0xea4d84b7, x14 = 0x0f619bff, x15 = 0xbc6e965a;
|
||||
|
||||
|
||||
mixin(colRound!(y00, y01, y02, y03, y04, y05, y06, y07,
|
||||
y08, y09, y10, y11, y12, y13, y14, y15));
|
||||
|
||||
mixin(colRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
|
||||
uint[] test0 = [y00, y01, y02, y03, y04, y05, y06, y07,
|
||||
y08, y09, y10, y11, y12, y13, y14, y15];
|
||||
|
||||
uint[] test1 = [x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15];
|
||||
|
||||
assert(test0 == [0x10090288, 0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000101, 0x00000000, 0x00000000, 0x00000000,
|
||||
0x00020401, 0x00000000, 0x00000000, 0x00000000,
|
||||
0x40a04001, 0x00000000, 0x00000000, 0x00000000]);
|
||||
|
||||
assert(test1 == [0x8c9d190a, 0xce8e4c90, 0x1ef8e9d3, 0x1326a71a,
|
||||
0x90a20123, 0xead3c4f3, 0x63a091a0, 0xf0708d69,
|
||||
0x789b010c, 0xd195a681, 0xeb7d5504, 0xa774135c,
|
||||
0x481c2027, 0x53a8e4b5, 0x4c1f89c5, 0x3f78c9c8]);
|
||||
}*/
|
||||
|
||||
alias littleEndianInv = nativeToLittleEndian;
|
||||
|
||||
uint littleEndian(in ubyte[] input)
|
||||
in
|
||||
{
|
||||
assert(input.length == uint.sizeof);
|
||||
}
|
||||
body
|
||||
{
|
||||
ubyte buf[uint.sizeof] = input;
|
||||
return littleEndianToNative!uint(buf);
|
||||
}
|
||||
|
||||
unittest
|
||||
{
|
||||
ubyte[] test0 = [0, 0, 0, 0];
|
||||
ubyte[] test1 = [86, 75, 30, 9];
|
||||
ubyte[] test2 = [255, 255, 255, 250];
|
||||
assert(littleEndian(test0) == 0x00000000);
|
||||
assert(littleEndian(test1) == 0x091e4b56);
|
||||
assert(littleEndian(test2) == 0xfaffffff);
|
||||
}
|
||||
|
||||
ubyte[] chacha20(in ubyte[] input)
|
||||
in
|
||||
{
|
||||
assert(input.length == 64);
|
||||
}
|
||||
out(result)
|
||||
{
|
||||
assert(result.length == 64);
|
||||
}
|
||||
body
|
||||
{
|
||||
auto x00 = littleEndian(input[0..4]), x01 = littleEndian(input[4..8]),
|
||||
x02 = littleEndian(input[8..12]), x03 = littleEndian(input[12..16]),
|
||||
x04 = littleEndian(input[16..20]), x05 = littleEndian(input[20..24]),
|
||||
x06 = littleEndian(input[24..28]), x07 = littleEndian(input[28..32]),
|
||||
x08 = littleEndian(input[32..36]), x09 = littleEndian(input[36..40]),
|
||||
x10 = littleEndian(input[40..44]), x11 = littleEndian(input[44..48]),
|
||||
x12 = littleEndian(input[48..52]), x13 = littleEndian(input[52..56]),
|
||||
x14 = littleEndian(input[56..60]), x15 = littleEndian(input[60..64]);
|
||||
|
||||
auto y00 = x00, y01 = x01, y02 = x02, y03 = x03,
|
||||
y04 = x04, y05 = x05, y06 = x06, y07 = x07,
|
||||
y08 = x08, y09 = x09, y10 = x10, y11 = x11,
|
||||
y12 = x12, y13 = x13, y14 = x14, y15 = x15;
|
||||
|
||||
foreach(i; 0..10)
|
||||
{
|
||||
mixin(colRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
|
||||
mixin(rowRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
}
|
||||
|
||||
return littleEndianInv(x00 + y00) ~ littleEndianInv(x01 + y01) ~
|
||||
littleEndianInv(x02 + y02) ~ littleEndianInv(x03 + y03) ~
|
||||
littleEndianInv(x04 + y04) ~ littleEndianInv(x05 + y05) ~
|
||||
littleEndianInv(x06 + y06) ~ littleEndianInv(x07 + y07) ~
|
||||
littleEndianInv(x08 + y08) ~ littleEndianInv(x09 + y09) ~
|
||||
littleEndianInv(x10 + y10) ~ littleEndianInv(x11 + y11) ~
|
||||
littleEndianInv(x12 + y12) ~ littleEndianInv(x13 + y13) ~
|
||||
littleEndianInv(x14 + y14) ~ littleEndianInv(x15 + y15);
|
||||
}
|
||||
|
||||
/*unittest
|
||||
{
|
||||
ubyte[] test0 = [ 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, 0];
|
||||
test0 = salsa20(test0);
|
||||
|
||||
ubyte[] test1 = [211,159, 13,115, 76, 55, 82,183, 3,117,222, 37,191,187,234,136,
|
||||
49,237,179, 48, 1,106,178,219,175,199,166, 48, 86, 16,179,207,
|
||||
31,240, 32, 63, 15, 83, 93,161,116,147, 48,113,238, 55,204, 36,
|
||||
79,201,235, 79, 3, 81,156, 47,203, 26,244,243, 88,118,104, 54];
|
||||
test1 = salsa20(test1);
|
||||
|
||||
ubyte[] test2 = [ 88,118,104, 54, 79,201,235, 79, 3, 81,156, 47,203, 26,244,243,
|
||||
191,187,234,136,211,159, 13,115, 76, 55, 82,183, 3,117,222, 37,
|
||||
86, 16,179,207, 49,237,179, 48, 1,106,178,219,175,199,166, 48,
|
||||
238, 55,204, 36, 31,240, 32, 63, 15, 83, 93,161,116,147, 48,113];
|
||||
test2 = salsa20(test2);
|
||||
|
||||
ubyte[] test3 = [ 6,124, 83,146, 38,191, 9, 50, 4,161, 47,222,122,182,223,185,
|
||||
75, 27, 0,216, 16,122, 7, 89,162,104,101,147,213, 21, 54, 95,
|
||||
225,253,139,176,105,132, 23,116, 76, 41,176,207,221, 34,157,108,
|
||||
94, 94, 99, 52, 90,117, 91,220,146,190,239,143,196,176,130,186];
|
||||
foreach(i; 0..1000000)
|
||||
test3 = salsa20(test3);
|
||||
|
||||
assert(test0 == [ 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, 0]);
|
||||
|
||||
assert(test1 == [109, 42,178,168,156,240,248,238,168,196,190,203, 26,110,170,154,
|
||||
29, 29,150, 26,150, 30,235,249,190,163,251, 48, 69,144, 51, 57,
|
||||
118, 40,152,157,180, 57, 27, 94,107, 42,236, 35, 27,111,114,114,
|
||||
219,236,232,135,111,155,110, 18, 24,232, 95,158,179, 19, 48,202]);
|
||||
|
||||
assert(test2 == [179, 19, 48,202,219,236,232,135,111,155,110, 18, 24,232, 95,158,
|
||||
26,110,170,154,109, 42,178,168,156,240,248,238,168,196,190,203,
|
||||
69,144, 51, 57, 29, 29,150, 26,150, 30,235,249,190,163,251, 48,
|
||||
27,111,114,114,118, 40,152,157,180, 57, 27, 94,107, 42,236, 35]);
|
||||
|
||||
assert(test3 == [ 8, 18, 38,199,119, 76,215, 67,173,127,144,162,103,212,176,217,
|
||||
192, 19,233, 33,159,197,154,160,128,243,219, 65,171,136,135,225,
|
||||
123, 11, 68, 86,237, 82, 20,155,133,189, 9, 83,167,116,194, 78,
|
||||
122,127,195,185,185,204,188, 90,245, 9,183,248,226, 85,245,104]);
|
||||
}*/
|
||||
|
||||
enum ubyte[4] σ0 = [101, 120, 112, 97];
|
||||
enum ubyte[4] σ1 = [110, 100, 32, 51];
|
||||
enum ubyte[4] σ2 = [ 50, 45, 98, 121];
|
||||
enum ubyte[4] σ3 = [116, 101, 32, 107];
|
||||
|
||||
ubyte[] chacha20Exp(in ubyte[] key, in ubyte[] n)
|
||||
in
|
||||
{
|
||||
assert(key.length == 32);
|
||||
assert(n.length == 16);
|
||||
}
|
||||
out(result)
|
||||
{
|
||||
assert(result.length == 64);
|
||||
}
|
||||
body
|
||||
{
|
||||
return chacha20(σ0 ~ key[0..16] ~ σ1 ~ n ~ σ2 ~ key[16..$] ~ σ3);
|
||||
}
|
||||
|
||||
/*unittest
|
||||
{
|
||||
ubyte[] key;
|
||||
ubyte[] n;
|
||||
key.length = 32;
|
||||
n.length = 16;
|
||||
foreach(i; 0..16)
|
||||
key[i] = cast(ubyte)(i + 1);
|
||||
foreach(i; 16..32)
|
||||
key[i] = cast(ubyte)(i + 200 - 15);
|
||||
|
||||
foreach(i; 0..16)
|
||||
n[i] = cast(ubyte)(i + 1+ 100);
|
||||
|
||||
assert(salsa20Exp(key, n) == [ 69, 37, 68, 39, 41, 15,107,193,255,139,122, 6,170,233,217, 98,
|
||||
89,144,182,106, 21, 51,200, 65,239, 49,222, 34,215,114, 40,126,
|
||||
104,197, 7,225,197,153, 31, 2,102, 78, 76,176, 84,245,246,184,
|
||||
177,160,133,130, 6, 72,149,119,192,195,132,236,234,103,246, 74]);
|
||||
}*/
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
module cipher;
|
||||
|
||||
private import std.range : isInputRange, ElementType;
|
||||
private import salsa20;
|
||||
private import chacha20;
|
||||
|
||||
public:
|
||||
|
||||
enum Cipher {
|
||||
salsa20,
|
||||
chacha20
|
||||
}
|
||||
|
||||
auto cipherFunction(R)(R range, ubyte[32] key, ubyte[8] nonce, Cipher cipher)
|
||||
if(isInputRange!R && is(ElementType!R : ubyte))
|
||||
{
|
||||
final switch(cipher)
|
||||
{
|
||||
case Cipher.salsa20:
|
||||
return salsa20Cipher(range, key, nonce);
|
||||
break;
|
||||
|
||||
case Cipher.chacha20:
|
||||
return salsa20Cipher(range, key, nonce);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,374 @@
|
|||
module salsa20;
|
||||
|
||||
private import std.traits : isUnsigned;
|
||||
private import std.string : format;
|
||||
private import std.range : isInputRange, isForwardRange, ElementType;
|
||||
private import std.bitmanip : nativeToLittleEndian, littleEndianToNative;
|
||||
private import std.array;
|
||||
|
||||
public:
|
||||
|
||||
auto salsa20Cipher(R)(R range, ubyte[32] key, ubyte[8] nonce)
|
||||
if(isInputRange!R && is(ElementType!R : ubyte))
|
||||
{
|
||||
static struct rangeResult
|
||||
{
|
||||
private:
|
||||
ubyte[32] key;
|
||||
ubyte[8] nonce;
|
||||
ulong count;
|
||||
R range;
|
||||
ubyte[] salsaSection;
|
||||
public:
|
||||
this(R range, in ubyte[32] key, in ubyte[8] nonce)
|
||||
{
|
||||
this.range = range;
|
||||
this.key = key;
|
||||
this.nonce = nonce;
|
||||
this.count = 0;
|
||||
salsaSection = salsa20Exp(key, nonce ~ littleEndianInv(count));
|
||||
}
|
||||
|
||||
bool empty() @property
|
||||
{
|
||||
return range.empty || (count == ulong.max && salsaSection.empty);
|
||||
}
|
||||
|
||||
ubyte front() @property
|
||||
{
|
||||
assert(!empty);
|
||||
return range.front ^ salsaSection.front;
|
||||
}
|
||||
|
||||
void popFront()
|
||||
{
|
||||
assert(!empty);
|
||||
salsaSection.popFront();
|
||||
if(salsaSection.empty)
|
||||
{
|
||||
++count;
|
||||
salsaSection = salsa20Exp(key, nonce ~ littleEndianInv(count));
|
||||
}
|
||||
range.popFront();
|
||||
}
|
||||
static if(isForwardRange!R)
|
||||
{
|
||||
auto save() @property
|
||||
{
|
||||
rangeResult copy;
|
||||
copy.range = range.save;
|
||||
copy.key = key.dup;
|
||||
copy.nonce = nonce.dup;
|
||||
copy.count = count;
|
||||
copy.salsaSection = salsaSection.dup;
|
||||
return copy;
|
||||
}
|
||||
}
|
||||
}
|
||||
return rangeResult(range, key, nonce);
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
UIntType rotateLeft(UIntType)(in UIntType val, in size_t len)
|
||||
if(isUnsigned!UIntType)
|
||||
{
|
||||
auto reducedLen = len % (8 * UIntType.sizeof);
|
||||
// TODO: ensure the compiler does not create different code paths here
|
||||
return cast(UIntType)((val << reducedLen) | (val >> (8 * UIntType.sizeof - reducedLen)));
|
||||
}
|
||||
|
||||
enum string quarterRound(alias _x0, alias _x1, alias _x2, alias _x3) = q{
|
||||
%2$s ^= (%1$s + %4$s).rotateLeft(7);
|
||||
%3$s ^= (%2$s + %1$s).rotateLeft(9);
|
||||
%4$s ^= (%3$s + %2$s).rotateLeft(13);
|
||||
%1$s ^= (%4$s + %3$s).rotateLeft(18);
|
||||
}.format(__traits(identifier, _x0), __traits(identifier, _x1),
|
||||
__traits(identifier, _x2), __traits(identifier, _x3));
|
||||
|
||||
unittest
|
||||
{
|
||||
uint a1 = 0x00000000, a2 = 0x00000000, a3 = 0x00000000, a4 = 0x00000000,
|
||||
b1 = 0x00000001, b2 = 0x00000000, b3 = 0x00000000, b4 = 0x00000000,
|
||||
c1 = 0x00000000, c2 = 0x00000001, c3 = 0x00000000, c4 = 0x00000000,
|
||||
d1 = 0x00000000, d2 = 0x00000000, d3 = 0x00000001, d4 = 0x00000000,
|
||||
e1 = 0x00000000, e2 = 0x00000000, e3 = 0x00000000, e4 = 0x00000001,
|
||||
f1 = 0xe7e8c006, f2 = 0xc4f9417d, f3 = 0x6479b4b2, f4 = 0x68c67137,
|
||||
g1 = 0xd3917c5b, g2 = 0x55f1c407, g3 = 0x52a58a7a, g4 = 0x8f887a3b;
|
||||
|
||||
mixin(quarterRound!(a1, a2, a3, a4));
|
||||
mixin(quarterRound!(b1, b2, b3, b4));
|
||||
mixin(quarterRound!(c1, c2, c3, c4));
|
||||
mixin(quarterRound!(d1, d2, d3, d4));
|
||||
mixin(quarterRound!(e1, e2, e3, e4));
|
||||
mixin(quarterRound!(f1, f2, f3, f4));
|
||||
mixin(quarterRound!(g1, g2, g3, g4));
|
||||
|
||||
assert([a1, a2, a3, a4] == [0x00000000, 0x00000000, 0x00000000, 0x00000000]);
|
||||
assert([b1, b2, b3, b4] == [0x08008145, 0x00000080, 0x00010200, 0x20500000]);
|
||||
assert([c1, c2, c3, c4] == [0x88000100, 0x00000001, 0x00000200, 0x00402000]);
|
||||
assert([d1, d2, d3, d4] == [0x80040000, 0x00000000, 0x00000001, 0x00002000]);
|
||||
assert([e1, e2, e3, e4] == [0x00048044, 0x00000080, 0x00010000, 0x20100001]);
|
||||
assert([f1, f2, f3, f4] == [0xe876d72b, 0x9361dfd5, 0xf1460244, 0x948541a3]);
|
||||
assert([g1, g2, g3, g4] == [0x3e2f308c, 0xd90a8f36, 0x6ab2a923, 0x2883524c]);
|
||||
}
|
||||
|
||||
enum string rowRound(alias _x00, alias _x01, alias _x02, alias _x03,
|
||||
alias _x04, alias _x05, alias _x06, alias _x07,
|
||||
alias _x08, alias _x09, alias _x10, alias _x11,
|
||||
alias _x12, alias _x13, alias _x14, alias _x15,) = q{
|
||||
mixin(quarterRound!(%1$s, %2$s, %3$s, %4$s));
|
||||
mixin(quarterRound!(%6$s, %7$s, %8$s, %5$s));
|
||||
mixin(quarterRound!(%11$s, %12$s, %9$s, %10$s));
|
||||
mixin(quarterRound!(%16$s, %13$s, %14$s, %15$s));
|
||||
}.format(__traits(identifier, _x00), __traits(identifier, _x01),
|
||||
__traits(identifier, _x02), __traits(identifier, _x03),
|
||||
__traits(identifier, _x04), __traits(identifier, _x05),
|
||||
__traits(identifier, _x06), __traits(identifier, _x07),
|
||||
__traits(identifier, _x08), __traits(identifier, _x09),
|
||||
__traits(identifier, _x10), __traits(identifier, _x11),
|
||||
__traits(identifier, _x12), __traits(identifier, _x13),
|
||||
__traits(identifier, _x14), __traits(identifier, _x15));
|
||||
|
||||
unittest
|
||||
{
|
||||
uint y00 = 0x00000001, y01 = 0x00000000, y02 = 0x00000000, y03 = 0x00000000,
|
||||
y04 = 0x00000001, y05 = 0x00000000, y06 = 0x00000000, y07 = 0x00000000,
|
||||
y08 = 0x00000001, y09 = 0x00000000, y10 = 0x00000000, y11 = 0x00000000,
|
||||
y12 = 0x00000001, y13 = 0x00000000, y14 = 0x00000000, y15 = 0x00000000;
|
||||
|
||||
uint x00 = 0x08521bd6, x01 = 0x1fe88837, x02 = 0xbb2aa576, x03 = 0x3aa26365,
|
||||
x04 = 0xc54c6a5b, x05 = 0x2fc74c2f, x06 = 0x6dd39cc3, x07 = 0xda0a64f6,
|
||||
x08 = 0x90a2f23d, x09 = 0x067f95a6, x10 = 0x06b35f61, x11 = 0x41e4732e,
|
||||
x12 = 0xe859c100, x13 = 0xea4d84b7, x14 = 0x0f619bff, x15 = 0xbc6e965a;
|
||||
|
||||
mixin(rowRound!(y00, y01, y02, y03, y04, y05, y06, y07,
|
||||
y08, y09, y10, y11, y12, y13, y14, y15));
|
||||
|
||||
mixin(rowRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
|
||||
uint[] test0 = [y00, y01, y02, y03, y04, y05, y06, y07,
|
||||
y08, y09, y10, y11, y12, y13, y14, y15];
|
||||
|
||||
uint[] test1 = [x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15];
|
||||
|
||||
assert(test0 == [0x08008145, 0x00000080, 0x00010200, 0x20500000,
|
||||
0x20100001, 0x00048044, 0x00000080, 0x00010000,
|
||||
0x00000001, 0x00002000, 0x80040000, 0x00000000,
|
||||
0x00000001, 0x00000200, 0x00402000, 0x88000100]);
|
||||
|
||||
assert(test1 == [0xa890d39d, 0x65d71596, 0xe9487daa, 0xc8ca6a86,
|
||||
0x949d2192, 0x764b7754, 0xe408d9b9, 0x7a41b4d1,
|
||||
0x3402e183, 0x3c3af432, 0x50669f96, 0xd89ef0a8,
|
||||
0x0040ede5, 0xb545fbce, 0xd257ed4f, 0x1818882d]);
|
||||
}
|
||||
|
||||
enum string colRound(alias _x00, alias _x01, alias _x02, alias _x03,
|
||||
alias _x04, alias _x05, alias _x06, alias _x07,
|
||||
alias _x08, alias _x09, alias _x10, alias _x11,
|
||||
alias _x12, alias _x13, alias _x14, alias _x15,) = q{
|
||||
mixin(quarterRound!(%1$s, %5$s, %9$s, %13$s));
|
||||
mixin(quarterRound!(%6$s, %10$s, %14$s, %2$s));
|
||||
mixin(quarterRound!(%11$s, %15$s, %3$s, %7$s));
|
||||
mixin(quarterRound!(%16$s, %4$s, %8$s, %12$s));
|
||||
}.format(__traits(identifier, _x00), __traits(identifier, _x01),
|
||||
__traits(identifier, _x02), __traits(identifier, _x03),
|
||||
__traits(identifier, _x04), __traits(identifier, _x05),
|
||||
__traits(identifier, _x06), __traits(identifier, _x07),
|
||||
__traits(identifier, _x08), __traits(identifier, _x09),
|
||||
__traits(identifier, _x10), __traits(identifier, _x11),
|
||||
__traits(identifier, _x12), __traits(identifier, _x13),
|
||||
__traits(identifier, _x14), __traits(identifier, _x15));
|
||||
|
||||
unittest
|
||||
{
|
||||
uint y00 = 0x00000001, y01 = 0x00000000, y02 = 0x00000000, y03 = 0x00000000,
|
||||
y04 = 0x00000001, y05 = 0x00000000, y06 = 0x00000000, y07 = 0x00000000,
|
||||
y08 = 0x00000001, y09 = 0x00000000, y10 = 0x00000000, y11 = 0x00000000,
|
||||
y12 = 0x00000001, y13 = 0x00000000, y14 = 0x00000000, y15 = 0x00000000;
|
||||
|
||||
uint x00 = 0x08521bd6, x01 = 0x1fe88837, x02 = 0xbb2aa576, x03 = 0x3aa26365,
|
||||
x04 = 0xc54c6a5b, x05 = 0x2fc74c2f, x06 = 0x6dd39cc3, x07 = 0xda0a64f6,
|
||||
x08 = 0x90a2f23d, x09 = 0x067f95a6, x10 = 0x06b35f61, x11 = 0x41e4732e,
|
||||
x12 = 0xe859c100, x13 = 0xea4d84b7, x14 = 0x0f619bff, x15 = 0xbc6e965a;
|
||||
|
||||
|
||||
mixin(colRound!(y00, y01, y02, y03, y04, y05, y06, y07,
|
||||
y08, y09, y10, y11, y12, y13, y14, y15));
|
||||
|
||||
mixin(colRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
|
||||
uint[] test0 = [y00, y01, y02, y03, y04, y05, y06, y07,
|
||||
y08, y09, y10, y11, y12, y13, y14, y15];
|
||||
|
||||
uint[] test1 = [x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15];
|
||||
|
||||
assert(test0 == [0x10090288, 0x00000000, 0x00000000, 0x00000000,
|
||||
0x00000101, 0x00000000, 0x00000000, 0x00000000,
|
||||
0x00020401, 0x00000000, 0x00000000, 0x00000000,
|
||||
0x40a04001, 0x00000000, 0x00000000, 0x00000000]);
|
||||
|
||||
assert(test1 == [0x8c9d190a, 0xce8e4c90, 0x1ef8e9d3, 0x1326a71a,
|
||||
0x90a20123, 0xead3c4f3, 0x63a091a0, 0xf0708d69,
|
||||
0x789b010c, 0xd195a681, 0xeb7d5504, 0xa774135c,
|
||||
0x481c2027, 0x53a8e4b5, 0x4c1f89c5, 0x3f78c9c8]);
|
||||
}
|
||||
|
||||
alias littleEndianInv = nativeToLittleEndian;
|
||||
|
||||
uint littleEndian(in ubyte[] input)
|
||||
in
|
||||
{
|
||||
assert(input.length == uint.sizeof);
|
||||
}
|
||||
body
|
||||
{
|
||||
ubyte buf[uint.sizeof] = input;
|
||||
return littleEndianToNative!uint(buf);
|
||||
}
|
||||
|
||||
unittest
|
||||
{
|
||||
ubyte[] test0 = [0, 0, 0, 0];
|
||||
ubyte[] test1 = [86, 75, 30, 9];
|
||||
ubyte[] test2 = [255, 255, 255, 250];
|
||||
assert(littleEndian(test0) == 0x00000000);
|
||||
assert(littleEndian(test1) == 0x091e4b56);
|
||||
assert(littleEndian(test2) == 0xfaffffff);
|
||||
}
|
||||
|
||||
ubyte[] salsa20(in ubyte[] input)
|
||||
in
|
||||
{
|
||||
assert(input.length == 64);
|
||||
}
|
||||
out(result)
|
||||
{
|
||||
assert(result.length == 64);
|
||||
}
|
||||
body
|
||||
{
|
||||
auto x00 = littleEndian(input[0..4]), x01 = littleEndian(input[4..8]),
|
||||
x02 = littleEndian(input[8..12]), x03 = littleEndian(input[12..16]),
|
||||
x04 = littleEndian(input[16..20]), x05 = littleEndian(input[20..24]),
|
||||
x06 = littleEndian(input[24..28]), x07 = littleEndian(input[28..32]),
|
||||
x08 = littleEndian(input[32..36]), x09 = littleEndian(input[36..40]),
|
||||
x10 = littleEndian(input[40..44]), x11 = littleEndian(input[44..48]),
|
||||
x12 = littleEndian(input[48..52]), x13 = littleEndian(input[52..56]),
|
||||
x14 = littleEndian(input[56..60]), x15 = littleEndian(input[60..64]);
|
||||
|
||||
auto y00 = x00, y01 = x01, y02 = x02, y03 = x03,
|
||||
y04 = x04, y05 = x05, y06 = x06, y07 = x07,
|
||||
y08 = x08, y09 = x09, y10 = x10, y11 = x11,
|
||||
y12 = x12, y13 = x13, y14 = x14, y15 = x15;
|
||||
|
||||
foreach(i; 0..10)
|
||||
{
|
||||
mixin(colRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
|
||||
mixin(rowRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
||||
x08, x09, x10, x11, x12, x13, x14, x15));
|
||||
}
|
||||
|
||||
return littleEndianInv(x00 + y00) ~ littleEndianInv(x01 + y01) ~
|
||||
littleEndianInv(x02 + y02) ~ littleEndianInv(x03 + y03) ~
|
||||
littleEndianInv(x04 + y04) ~ littleEndianInv(x05 + y05) ~
|
||||
littleEndianInv(x06 + y06) ~ littleEndianInv(x07 + y07) ~
|
||||
littleEndianInv(x08 + y08) ~ littleEndianInv(x09 + y09) ~
|
||||
littleEndianInv(x10 + y10) ~ littleEndianInv(x11 + y11) ~
|
||||
littleEndianInv(x12 + y12) ~ littleEndianInv(x13 + y13) ~
|
||||
littleEndianInv(x14 + y14) ~ littleEndianInv(x15 + y15);
|
||||
}
|
||||
|
||||
unittest
|
||||
{
|
||||
ubyte[] test0 = [ 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, 0];
|
||||
test0 = salsa20(test0);
|
||||
|
||||
ubyte[] test1 = [211,159, 13,115, 76, 55, 82,183, 3,117,222, 37,191,187,234,136,
|
||||
49,237,179, 48, 1,106,178,219,175,199,166, 48, 86, 16,179,207,
|
||||
31,240, 32, 63, 15, 83, 93,161,116,147, 48,113,238, 55,204, 36,
|
||||
79,201,235, 79, 3, 81,156, 47,203, 26,244,243, 88,118,104, 54];
|
||||
test1 = salsa20(test1);
|
||||
|
||||
ubyte[] test2 = [ 88,118,104, 54, 79,201,235, 79, 3, 81,156, 47,203, 26,244,243,
|
||||
191,187,234,136,211,159, 13,115, 76, 55, 82,183, 3,117,222, 37,
|
||||
86, 16,179,207, 49,237,179, 48, 1,106,178,219,175,199,166, 48,
|
||||
238, 55,204, 36, 31,240, 32, 63, 15, 83, 93,161,116,147, 48,113];
|
||||
test2 = salsa20(test2);
|
||||
|
||||
ubyte[] test3 = [ 6,124, 83,146, 38,191, 9, 50, 4,161, 47,222,122,182,223,185,
|
||||
75, 27, 0,216, 16,122, 7, 89,162,104,101,147,213, 21, 54, 95,
|
||||
225,253,139,176,105,132, 23,116, 76, 41,176,207,221, 34,157,108,
|
||||
94, 94, 99, 52, 90,117, 91,220,146,190,239,143,196,176,130,186];
|
||||
foreach(i; 0..1000000)
|
||||
test3 = salsa20(test3);
|
||||
|
||||
assert(test0 == [ 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, 0]);
|
||||
|
||||
assert(test1 == [109, 42,178,168,156,240,248,238,168,196,190,203, 26,110,170,154,
|
||||
29, 29,150, 26,150, 30,235,249,190,163,251, 48, 69,144, 51, 57,
|
||||
118, 40,152,157,180, 57, 27, 94,107, 42,236, 35, 27,111,114,114,
|
||||
219,236,232,135,111,155,110, 18, 24,232, 95,158,179, 19, 48,202]);
|
||||
|
||||
assert(test2 == [179, 19, 48,202,219,236,232,135,111,155,110, 18, 24,232, 95,158,
|
||||
26,110,170,154,109, 42,178,168,156,240,248,238,168,196,190,203,
|
||||
69,144, 51, 57, 29, 29,150, 26,150, 30,235,249,190,163,251, 48,
|
||||
27,111,114,114,118, 40,152,157,180, 57, 27, 94,107, 42,236, 35]);
|
||||
|
||||
assert(test3 == [ 8, 18, 38,199,119, 76,215, 67,173,127,144,162,103,212,176,217,
|
||||
192, 19,233, 33,159,197,154,160,128,243,219, 65,171,136,135,225,
|
||||
123, 11, 68, 86,237, 82, 20,155,133,189, 9, 83,167,116,194, 78,
|
||||
122,127,195,185,185,204,188, 90,245, 9,183,248,226, 85,245,104]);
|
||||
}
|
||||
|
||||
enum ubyte[4] σ0 = [101, 120, 112, 97];
|
||||
enum ubyte[4] σ1 = [110, 100, 32, 51];
|
||||
enum ubyte[4] σ2 = [ 50, 45, 98, 121];
|
||||
enum ubyte[4] σ3 = [116, 101, 32, 107];
|
||||
|
||||
ubyte[] salsa20Exp(in ubyte[] key, in ubyte[] n)
|
||||
in
|
||||
{
|
||||
assert(key.length == 32);
|
||||
assert(n.length == 16);
|
||||
}
|
||||
out(result)
|
||||
{
|
||||
assert(result.length == 64);
|
||||
}
|
||||
body
|
||||
{
|
||||
return salsa20(σ0 ~ key[0..16] ~ σ1 ~ n ~ σ2 ~ key[16..$] ~ σ3);
|
||||
}
|
||||
|
||||
unittest
|
||||
{
|
||||
ubyte[] key;
|
||||
ubyte[] n;
|
||||
key.length = 32;
|
||||
n.length = 16;
|
||||
foreach(i; 0..16)
|
||||
key[i] = cast(ubyte)(i + 1);
|
||||
foreach(i; 16..32)
|
||||
key[i] = cast(ubyte)(i + 200 - 15);
|
||||
|
||||
foreach(i; 0..16)
|
||||
n[i] = cast(ubyte)(i + 1+ 100);
|
||||
|
||||
assert(salsa20Exp(key, n) == [ 69, 37, 68, 39, 41, 15,107,193,255,139,122, 6,170,233,217, 98,
|
||||
89,144,182,106, 21, 51,200, 65,239, 49,222, 34,215,114, 40,126,
|
||||
104,197, 7,225,197,153, 31, 2,102, 78, 76,176, 84,245,246,184,
|
||||
177,160,133,130, 6, 72,149,119,192,195,132,236,234,103,246, 74]);
|
||||
}
|
||||
Loading…
Reference in New Issue