privateKey = b
			fmt.Println("Using private key from", *privKeyPath)
		}

		// Prompt for decryption key if no --key or --private-key are provided
		if len(privateKey) == 0 {
			reader := bufio.NewReader(os.Stdin)
			fmt.Print("Enter Decryption Key: ")

			text, _ := reader.ReadString('\n')
			// convert CRLF to LF
			*keyHex = strings.ReplaceAll(text, "\n", "")

			t.Errorf("Test %d: Decryption returned wrong error code: got %d , want %d", i, err, test.expErr)
		} else if _, enc := crypto.IsEncrypted(test.info.UserDefined); encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is encrypted but it is not", i)
		} else if !encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is not encrypted but it is", i)
		}
	}
}

				}
			}
			objects = objects[N:]
			continue
		}

		// There is at least one SSE-S3 single-part object.
		// For all SSE-S3 single-part objects we have to
		// fetch their decryption keys. We do this using
		// a Bulk-Decryption API call, if available.
		keys, err := crypto.S3.UnsealObjectKeys(ctx, k, metadata, buckets, names)
		if err != nil {
			return err
		}

SSE-C allows an S3 client to en/decrypt an object at the MinIO server. Therefore the S3 client sends a secret key as part of the HTTP request. This secret key is **never** stored by the MinIO server and only resides in RAM during the en/decryption process.

...
```

### Encrypted/Object locked objects

//     - object_data := DAREv2_Dec(ObjectKey, enc_object_data)
//     Output: object_data
//
// ## SSE-S3
//
// SSE-S3 can use either a master key or a KMS as root-of-trust.
// The en/decryption slightly depens upon which root-of-trust is used.
//
// ### SSE-S3 and single master key
//
// The master key is used to derive unique object- and key-encryption-keys.

				writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
				return
			}
		}
		// Set this for multipart only operations, we need to differentiate during
		// decryption if the file was actually multipart or not.
		encMetadata[ReservedMetadataPrefix+"Encrypted-Multipart"] = ""
	}

	// Extract metadata that needs to be saved.
	metadata, err := extractMetadataFromReq(ctx, r)

mc: Even with the decryption key, data stored with encryption cannot be accessed.
```

This file can be decrypted using the decryption tool below:

### Installing decryption tool

To install, [Go](https://golang.org/dl/) must be installed.

Once installed, execute this to install the binary:

```bash
go install github.com/minio/minio/docs/debugging/inspect@latest
```

### Usage

	return &HTTPRangeSpec{Start: start, End: end}
}

// Returns the compressed offset which should be skipped.
// If encrypted offsets are adjusted for encrypted block headers/trailers.
// Since de-compression is after decryption encryption overhead is only added to compressedOffset.

		decryptedKey, err := client.Decrypt(ctx, env.Get(EnvKESKeyName, ""), key.Ciphertext, kmsCtx)
		switch {
		case err != nil:
			result.Decrypt = fmt.Sprintf("Decryption failed: %v", err)
		case subtle.ConstantTimeCompare(key.Plaintext, decryptedKey) != 1:
			result.Decrypt = "Decryption failed: decrypted key does not match generated key"
		default:
			result.Decrypt = "success"
		}
		results = append(results, result)
	}