Simplify AsnDecoder.ReverseBitsPerByte

[stephentoub]

Using the same bit twiddling hack as

runtime/src/libraries/System.Security.Cryptography/src/System/Security/Cryptography/X509Certificates/ManagedX509ExtensionProcessor.cs

Lines 244 to 248 in cc9d465

	private static byte ReverseBitOrder(byte b)
	{
	return (byte)(unchecked(b * 0x0202020202ul & 0x010884422010ul) % 1023);
	}
	}

[ghost]

Tagging subscribers to this area: @dotnet/area-system-security, @vcsjones
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Issue Details

---

Using the same bit twiddling hack as

runtime/src/libraries/System.Security.Cryptography/src/System/Security/Cryptography/X509Certificates/ManagedX509ExtensionProcessor.cs

Lines 244 to 248 in cc9d465

	private static byte ReverseBitOrder(byte b)
	{
	return (byte)(unchecked(b * 0x0202020202ul & 0x010884422010ul) % 1023);
	}
	}

Author:	stephentoub
Assignees:	stephentoub
Labels:	area-System.Security
Milestone:	-

[ghost]

Tagging subscribers to this area: @dotnet/area-system-formats-asn1, @vcsjones
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Using the same bit twiddling hack as

runtime/src/libraries/System.Security.Cryptography/src/System/Security/Cryptography/X509Certificates/ManagedX509ExtensionProcessor.cs

Lines 244 to 248 in cc9d465

	private static byte ReverseBitOrder(byte b)
	{
	return (byte)(unchecked(b * 0x0202020202ul & 0x010884422010ul) % 1023);
	}
	}

Author:	stephentoub
Assignees:	stephentoub
Labels:	area-System.Formats.Asn1
Milestone:	-

[danmoseley]

I guess not common enough for a public method

[stephentoub]

Failure is #75329

[stephentoub]

I guess not common enough for a public method

I wouldn't be adverse to a:

public static class BitOperations
{
+    public static byte ReverseBits(byte value);
}

but I don't know it's valuable enough to be warranted.