### Usage scanner

}

// preSignValues data type represents structured form of AWS Signature V4 query string.
type preSignValues struct {
	signValues
	Date    time.Time
	Expires time.Duration
}

// Parses signature version '4' query string of the following form.
//
//	querystring = X-Amz-Algorithm=algorithm
//	querystring += &X-Amz-Credential= urlencode(accessKey + '/' + credential_scope)
//	querystring += &X-Amz-Date=date

## Regression
<!-- Is this issue a regression? (Yes / No) -->
<!-- If Yes, optionally please include minio version or commit id or PR# that caused this regression, if you have these details. -->

## Your Environment
<!--- Include as many relevant details about the environment you experienced the bug in -->
* Version used (`minio --version`):

			if !c.NoMetrics {
				atomic.AddUint64(&globalStats.errs, 1)
			}
			if c.MarkOffline(err) {
				logger.LogOnceIf(ctx, logSubsys, fmt.Errorf("Marking %s offline temporarily; caused by %w", c.url.Host, err), c.url.Host)
			}
		}
		return nil, &NetworkError{err}
	}

	// If trace is enabled, dump http request and response,

	"golang.org/x/crypto/chacha20poly1305"

	"github.com/minio/kms-go/kes"
	"github.com/minio/minio/internal/hash/sha256"
)

// Parse parses s as single-key KMS. The given string
// is expected to have the following format:
//
//	<key-id>:<base64-key>
//
// The returned KMS implementation uses the parsed
// key ID and key to derive new DEKs and decrypt ciphertext.
func Parse(s string) (KMS, error) {
	v := strings.SplitN(s, ":", 2)

}

var (
	stsEndpoint    string
	configEndpoint string
	clientID       string
	clientSec      string
	clientScopes   string
	port           int
)

// DiscoveryDoc - parses the output from openid-configuration
// for example http://localhost:8080/auth/realms/minio/.well-known/openid-configuration
type DiscoveryDoc struct {
	Issuer                           string   `json:"issuer,omitempty"`

func (conf *Config) ToRulesMap() RulesMap {
	rulesMap := make(RulesMap)

	for _, queue := range conf.QueueList {
		rulesMap.Add(queue.ToRulesMap())
	}

	return rulesMap
}

// ParseConfig - parses data in reader to notification configuration.
func ParseConfig(reader io.Reader, region string, targetList *TargetList) (*Config, error) {
	var config Config

	if err := xml.NewDecoder(reader).Decode(&config); err != nil {

		// Return only true if the SSE header is specified and does not contain the SSE-S3 value
		return strings.ToUpper(h.Get(xhttp.AmzServerSideEncryption)) != xhttp.AmzEncryptionAES
	}
	return false
}

// ParseHTTP parses the SSE-KMS headers and returns the SSE-KMS key ID
// and the KMS context on success.
func (ssekms) ParseHTTP(h http.Header) (string, kms.Context, error) {
	if h == nil {
		return "", nil, ErrInvalidEncryptionMethod
	}

	k, err := crypto.SSECopy.ParseHTTP(h)
	return k[:], err
}

// ParseSSECustomerRequest parses the SSE-C header fields of the provided request.
// It returns the client provided key on success.
func ParseSSECustomerRequest(r *http.Request) (key []byte, err error) {
	return ParseSSECustomerHeader(r.Header)
}

// ParseSSECustomerHeader parses the SSE-C header fields and returns
// the client provided key on success.

	}

	// Validate all the test cases.
	for i, testCase := range testCases {
		actualInfo, actualErr := obj.PutObjectPart(context.Background(), testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetPutObjReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.inputDataSize, testCase.inputMd5, testCase.inputSHA256), opts)
		// All are test cases above are expected to fail.