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Basic formatting applied. Unnecessary comments have been removed. Suspicious code is covered by TODO.

Hcs.Client/GostCryptography/Asn1/Ber/Asn1RunTime.cs

@@ -0,0 +1,151 @@
+using GostCryptography.Properties;
+
+namespace GostCryptography.Asn1.Ber
+{
+    public static class Asn1RunTime
+    {
+        public const int LicBer = 1;
+        public const int LicPer = 2;
+        public const int LicXer = 4;
+        public const long Bit0Mask = -9223372036854775808L;
+
+        public static long DecodeIntValue(Asn1DecodeBuffer buffer, int length, bool signExtend)
+        {
+            var num = 0L;
+
+            if (length > 8)
+            {
+                throw ExceptionUtility.CryptographicException(Resources.Asn1IntegerValueIsTooLarge);
+            }
+
+            for (var i = 0; i < length; i++)
+            {
+                var num2 = buffer.ReadByte();
+
+                if (num2 < 0)
+                {
+                    throw ExceptionUtility.CryptographicException(Resources.Asn1EndOfBufferException, buffer.ByteCount);
+                }
+
+                if ((i == 0) && signExtend)
+                {
+                    num = (num2 > 0x7f) ? -1 : 0;
+                }
+
+                num = (num * 0x100L) + num2;
+            }
+
+            return num;
+        }
+
+        public static int GetIdentBytesCount(long ident)
+        {
+            if (ident < 0x80L)
+            {
+                return 1;
+            }
+
+            if (ident < 0x4000L)
+            {
+                return 2;
+            }
+
+            if (ident < 0x200000L)
+            {
+                return 3;
+            }
+
+            if (ident < 0x10000000L)
+            {
+                return 4;
+            }
+
+            if (ident < 0x800000000L)
+            {
+                return 5;
+            }
+
+            if (ident < 0x40000000000L)
+            {
+                return 6;
+            }
+
+            if (ident < 0x2000000000000L)
+            {
+                return 7;
+            }
+
+            if (ident < 0x100000000000000L)
+            {
+                return 8;
+            }
+
+            return 9;
+        }
+
+        public static int GetLongBitCount(long ivalue)
+        {
+            var num = ivalue & Bit0Mask;
+            var num2 = 0;
+
+            if (ivalue != 0L)
+            {
+                while ((ivalue & Bit0Mask) == num)
+                {
+                    num2++;
+                    ivalue = ivalue << 1;
+                }
+
+                if (num == Bit0Mask)
+                {
+                    num2--;
+                }
+
+                return (0x40 - num2);
+            }
+
+            return 0;
+        }
+
+        public static int GetLongBytesCount(long value)
+        {
+            var num = 0x7f80000000000000L;
+            var num2 = 8;
+
+            if (value < 0L)
+            {
+                value ^= -1L;
+            }
+
+            while ((num2 > 1) && ((value & num) == 0L))
+            {
+                num = num >> 8;
+                num2--;
+            }
+
+            return num2;
+        }
+
+        public static int GetUlongBytesCount(long value)
+        {
+            var number = -72057594037927936L;
+            var num2 = 8;
+
+            while ((num2 > 1) && ((value & number) == 0L))
+            {
+                number = Asn1Util.UrShift(number, 8);
+                num2--;
+            }
+
+            return num2;
+        }
+
+        public static int IntTrailingZerosCnt(int w)
+        {
+            return (0x20 -
+                    (((w & 0xffff) != 0)
+                        ? (((w & 0xff) != 0) ? ((((w & 15) != 0) ? (((w & 3) != 0) ? (((w & 1) != 0) ? 8 : 7) : (((w & 4) != 0) ? 6 : 5)) : (((w & 0x30) != 0) ? (((w & 0x10) != 0) ? 4 : 3) : (((w & 0x40) != 0) ? 2 : (((w & 0x80) != 0) ? 1 : 0)))) + 0x18) : (((((w = Asn1Util.UrShift(w, 8)) & 15) != 0) ? (((w & 3) != 0) ? (((w & 1) != 0) ? 8 : 7) : (((w & 4) != 0) ? 6 : 5)) : (((w & 0x30) != 0) ? (((w & 0x10) != 0) ? 4 : 3) : (((w & 0x40) != 0) ? 2 : (((w & 0x80) != 0) ? 1 : 0)))) + 0x10))
+                        : ((((w = Asn1Util.UrShift(w, 0x10)) & 0xff) != 0) ? ((((w & 15) != 0) ? (((w & 3) != 0) ? (((w & 1) != 0) ? 8 : 7) : (((w & 4) != 0) ? 6 : 5)) : (((w & 0x30) != 0) ? (((w & 0x10) != 0) ? 4 : 3) : (((w & 0x40) != 0) ? 2 : (((w & 0x80) != 0) ? 1 : 0)))) + 8) : ((((w = Asn1Util.UrShift(w, 8)) & 15) != 0) ? (((w & 3) != 0) ? (((w & 1) != 0) ? 8 : 7) : (((w & 4) != 0) ? 6 : 5)) : (((w & 0x30) != 0) ? (((w & 0x10) != 0) ? 4 : 3) : (((w & 0x40) != 0) ? 2 : (((w & 0x80) != 0) ? 1 : 0)))))));
+        }
+    }
+}