static private void GenerateMHash(string dir, MHashId id)
{
string algo = id.ToString().ToUpper();
double fx = 1.0;
switch (algo)
{
case "SHA1":
case "MD5":
case "SHA256":
case "SHA384":
case "SHA512":
// base class already defined in Fx 1.0
break;
case "RIPEMD160":
// base class already defined, but only in Fx 2.0
GenerateMHashAbstractClass(dir, id, 2.0);
break;
default:
// we need to generate our own base class
GenerateMHashAbstractClass(dir, id, 1.0);
break;
}
GenerateMHashClass(dir, id, fx);
}
static private void GenerateMHashClass(string dir, MHashId id, double fx)
{
string algo = id.ToString().ToUpper();
string classname = String.Format("{0}Native", algo);
string baseclass = " : " + algo;
StringBuilder sb = new StringBuilder(header);
sb.Append(mhash_start);
// if (fx < 2.0){
sb.AppendFormat("{0}\tpublic class {1}{2} {{{0}", Environment.NewLine, classname, baseclass);
// } else {
// sb.AppendFormat ("{0}#if NET_2_0{0}\tpublic class {1}{2} {{{0}#else{0}\tpublic class {1}{2 : HashAlgorithm {{{0}#endif{0}",
// Environment.NewLine, classname, baseclass);
// }
sb.AppendFormat("{0}\t\tprivate MHashId Id = MHashId.{1};{0}", Environment.NewLine, id);
sb.Append("\t\tprivate MHashHelper hash;");
sb.AppendFormat("{0}{0}\t\tpublic {1} ()", Environment.NewLine, classname);
sb.Append(mhash_ctor);
sb.AppendFormat("\t\t~{0} ()", classname);
sb.Append(mhash_end);
sb.Append(footer);
string filename = Path.Combine(dir, classname + ".cs");
WriteToFile(filename, sb.ToString());
}
static private void GenerateMHashAbstractClass(string dir, MHashId id, double fx)
{
string algo = id.ToString().ToUpper();
int size = ((int)MHashWrapper.mhash_get_block_size(id) << 3); // bytes to bits
StringBuilder sb = new StringBuilder(header);
sb.Append(mhash_base_start);
sb.AppendFormat("{0}\tpublic abstract class {1} : HashAlgorithm {{{0}", Environment.NewLine, algo);
sb.AppendFormat("{0}\t\tprotected {1} (){0}\t\t{{", Environment.NewLine, algo);
sb.AppendFormat("{0}\t\t\t// {1} digest length is {2} bits long", Environment.NewLine, algo, size);
sb.AppendFormat("{0}\t\t\tHashSizeValue = {1};{0}\t\t}}{0}", Environment.NewLine, size);
sb.AppendFormat("{0}\t\tpublic static new {1} Create (){0}\t\t{{", Environment.NewLine, algo);
sb.AppendFormat("{0}\t\t\treturn Create (\"{1}\");{0}\t\t}}{0}", Environment.NewLine, algo);
sb.AppendFormat("{0}\t\tpublic static new {1} Create (string hashName){0}\t\t{{{0}", Environment.NewLine, algo);
sb.Append("\t\t\tobject o = CryptoConfig.CreateFromName (hashName);");
sb.AppendFormat("{0}\t\t\t// in case machine.config isn't configured to use any {1} implementation", Environment.NewLine, algo);
sb.AppendFormat("{0}\t\t\tif (o == null) {{{0}\t\t\t\to = new {1}Native ();{0}\t\t\t}}", Environment.NewLine, algo);
sb.AppendFormat("{0}\t\t\treturn ({1}) o;{0}\t\t}}{0}\t}}{0}}}", Environment.NewLine, algo);
sb.Append(footer);
string filename = Path.Combine(dir, algo + ".cs");
WriteToFile(filename, sb.ToString());
}
public MHashHelper(MHashId type)
{
this.type = type;
handle = MHashWrapper.mhash_init (type);
if (handle == IntPtr.Zero) {
string msg = String.Format ("Unknown mhash id '{0}'.", type);
throw new CryptographicException (msg);
}
blocksize = (int) MHashWrapper.mhash_get_block_size (type);
}
public MHashHelper(MHashId type)
{
this.type = type;
handle = MHashWrapper.mhash_init(type);
if (handle == IntPtr.Zero)
{
string msg = String.Format("Unknown mhash id '{0}'.", type);
throw new CryptographicException(msg);
}
blocksize = (int)MHashWrapper.mhash_get_block_size(type);
}
internal static extern IntPtr mhash_init(MHashId type);
internal static extern IntPtr mhash_get_block_size(MHashId type);
private static void GenerateMHashClass(string dir, MHashId id, double fx)
{
string algo = id.ToString ().ToUpper ();
string classname = String.Format ("{0}Native", algo);
string baseclass = " : " + algo;
StringBuilder sb = new StringBuilder (header);
sb.Append (mhash_start);
// if (fx < 2.0){
sb.AppendFormat ("{0}\tpublic class {1}{2} {{{0}", Environment.NewLine, classname, baseclass);
// } else {
// sb.AppendFormat ("{0}#if NET_2_0{0}\tpublic class {1}{2} {{{0}#else{0}\tpublic class {1}{2 : HashAlgorithm {{{0}#endif{0}",
// Environment.NewLine, classname, baseclass);
// }
sb.AppendFormat ("{0}\t\tprivate MHashId Id = MHashId.{1};{0}", Environment.NewLine, id);
sb.Append ("\t\tprivate MHashHelper hash;");
sb.AppendFormat ("{0}{0}\t\tpublic {1} ()", Environment.NewLine, classname);
sb.Append (mhash_ctor);
sb.AppendFormat ("\t\t~{0} ()", classname);
sb.Append (mhash_end);
sb.Append (footer);
string filename = Path.Combine (dir, classname + ".cs");
WriteToFile (filename, sb.ToString ());
}
private static void GenerateMHashAbstractClass(string dir, MHashId id, double fx)
{
string algo = id.ToString ().ToUpper ();
int size = ((int) MHashWrapper.mhash_get_block_size (id) << 3); // bytes to bits
StringBuilder sb = new StringBuilder (header);
sb.Append (mhash_base_start);
sb.AppendFormat ("{0}\tpublic abstract class {1} : HashAlgorithm {{{0}", Environment.NewLine, algo);
sb.AppendFormat ("{0}\t\tprotected {1} (){0}\t\t{{", Environment.NewLine, algo);
sb.AppendFormat ("{0}\t\t\t// {1} digest length is {2} bits long", Environment.NewLine, algo, size);
sb.AppendFormat ("{0}\t\t\tHashSizeValue = {1};{0}\t\t}}{0}", Environment.NewLine, size);
sb.AppendFormat ("{0}\t\tpublic static new {1} Create (){0}\t\t{{", Environment.NewLine, algo);
sb.AppendFormat ("{0}\t\t\treturn Create (\"{1}\");{0}\t\t}}{0}", Environment.NewLine, algo);
sb.AppendFormat ("{0}\t\tpublic static new {1} Create (string hashName){0}\t\t{{{0}", Environment.NewLine, algo);
sb.Append ("\t\t\tobject o = CryptoConfig.CreateFromName (hashName);");
sb.AppendFormat ("{0}\t\t\t// in case machine.config isn't configured to use any {1} implementation", Environment.NewLine, algo);
sb.AppendFormat ("{0}\t\t\tif (o == null) {{{0}\t\t\t\to = new {1}Native ();{0}\t\t\t}}", Environment.NewLine, algo);
sb.AppendFormat ("{0}\t\t\treturn ({1}) o;{0}\t\t}}{0}\t}}{0}}}", Environment.NewLine, algo);
sb.Append (footer);
string filename = Path.Combine (dir, algo + ".cs");
WriteToFile (filename, sb.ToString ());
}
private static void GenerateMHash(string dir, MHashId id)
{
string algo = id.ToString ().ToUpper ();
double fx = 1.0;
switch (algo) {
case "SHA1":
case "MD5":
case "SHA256":
case "SHA384":
case "SHA512":
// base class already defined in Fx 1.0
break;
case "RIPEMD160":
// base class already defined, but only in Fx 2.0
GenerateMHashAbstractClass (dir, id, 2.0);
break;
default:
// we need to generate our own base class
GenerateMHashAbstractClass (dir, id, 1.0);
break;
}
GenerateMHashClass (dir, id, fx);
}
internal extern static IntPtr mhash_get_block_size(MHashId type);
internal extern static IntPtr mhash_init(MHashId type);
