correct span allocation

DeagleGross · DeagleGross · commit d4b1fc993597 · 2025-07-28T14:13:43.000+02:00
diff --git a/src/DataProtection/Extensions/src/TimeLimitedDataProtector.cs b/src/DataProtection/Extensions/src/TimeLimitedDataProtector.cs
@@ -166,7 +166,7 @@ public bool TryProtect(ReadOnlySpan<byte> plaintext, Span<byte> destination, Dat
         try
         {
             plainTextWithHeader = ArrayPool<byte>.Shared.Rent(plaintext.Length + ExpirationTimeHeaderSize);
-            var plainTextWithHeaderSpan = plainTextWithHeader.AsSpan();
+            var plainTextWithHeaderSpan = plainTextWithHeader.AsSpan(0, plaintext.Length + ExpirationTimeHeaderSize);
 
             // We prepend the expiration time (as a 64-bit UTC tick count) to the unprotected data.
             BitHelpers.WriteUInt64(plainTextWithHeaderSpan, 0, (ulong)expiration.UtcTicks);

Original file line number	Diff line number	Diff line change
`@@ -166,7 +166,7 @@ public bool TryProtect(ReadOnlySpan<byte> plaintext, Span<byte> destination, Dat`
`166`	`166`	`try`
`167`	`167`	`{`
`168`	`168`	`plainTextWithHeader = ArrayPool<byte>.Shared.Rent(plaintext.Length + ExpirationTimeHeaderSize);`
`169`		`- var plainTextWithHeaderSpan = plainTextWithHeader.AsSpan();`
	`169`	`+ var plainTextWithHeaderSpan = plainTextWithHeader.AsSpan(0, plaintext.Length + ExpirationTimeHeaderSize);`
`170`	`170`
`171`	`171`	`// We prepend the expiration time (as a 64-bit UTC tick count) to the unprotected data.`
`172`	`172`	`BitHelpers.WriteUInt64(plainTextWithHeaderSpan, 0, (ulong)expiration.UtcTicks);`