<!--{
	"Title": "The Go Programming Language Specification",
	"Subtitle": "Language version go1.27 (April 1, 2026)",
	"Path": "/ref/spec"
}-->

<h2 id="Introduction">Introduction</h2>

<p>
This is the reference manual for the Go programming language.
For more information and other documents, see <a href="/">go.dev</a>.
</p>

<p>
Go is a general-purpose language designed with systems programming

./mc cp /tmp/data/defpartsize minio1/test-bucket/defpartsize --enc-c "minio1/test-bucket/defpartsize=${TEST_MINIO_ENC_KEY}" --insecure

# Below should fail as compression and SSEC used at the same time
# DISABLED: We must check the response header to see if compression was actually applied

pkg go/ast, type SliceExpr struct, Low Expr
pkg go/ast, type SliceExpr struct, Rbrack token.Pos
pkg go/ast, type SliceExpr struct, X Expr
pkg go/ast, type Spec interface, End() token.Pos
pkg go/ast, type Spec interface, Pos() token.Pos
pkg go/ast, type Spec interface, unexported methods
pkg go/ast, type StarExpr struct
pkg go/ast, type StarExpr struct, Star token.Pos
pkg go/ast, type StarExpr struct, X Expr

	"github.com/minio/minio/internal/logger"
)

type ssec struct{}

var (
	// SSEC represents AWS SSE-C. It provides functionality to handle
	// SSE-C requests.
	SSEC = ssec{}

	_ Type = SSEC
)

// String returns the SSE domain as string. For SSE-C the
// domain is "SSE-C".
func (ssec) String() string { return "SSE-C" }

// IsRequested returns true if the HTTP headers contains

open(out []byte, g *GCM, nonce, ciphertext, data []byte) error { if !supportsAESGCM { return openGeneric(out, g, nonce, ciphertext, data) } tag := ciphertext[len(ciphertext)-g.tagSize:] ciphertext = ciphertext[:len(ciphertext)-g.tagSize] // See GCM spec, section 7.1. var counter, tagMask [gcmBlockSize]byte if len(nonce) == gcmStandardNonceSize { // Init counter to nonce||1 copy(counter[:], nonce) counter[gcmBlockSize-1] = 1 } else { // Otherwise counter = GHASH(nonce) gcmAesData(&g.productTable, nonce,...

func (l *lastMinuteLatency) add(t time.Duration) {
	sec := time.Now().Unix()
	l.forwardTo(sec)
	winIdx := sec % 60
	l.Totals[winIdx].add(t)
	l.LastSec = sec
}

// Add  a new duration data
func (l *lastMinuteLatency) addAll(sec int64, a AccElem) {
	l.forwardTo(sec)
	winIdx := sec % 60
	l.Totals[winIdx].merge(a)
	l.LastSec = sec
}

// Merge all recorded latencies of last minute into one

				t.Errorf("Test case %d: Expected %s but got %s", i+1, tc.expectedErr, err)
			}
			continue
		}

		if tc.keyID != "" && tc.keyID != ssec.KeyID() {
			t.Errorf("Test case %d: Expected bucket encryption KeyID %s but got %s", i+1, tc.keyID, ssec.KeyID())
		}

		if expectedXML, err := xml.Marshal(tc.expectedConfig); err != nil || !bytes.Equal(expectedXML, []byte(tc.inputXML)) {

open(out []byte, g *GCM, nonce, ciphertext, data []byte) error { if !supportsAESGCM { return openGeneric(out, g, nonce, ciphertext, data) } tag := ciphertext[len(ciphertext)-g.tagSize:] ciphertext = ciphertext[:len(ciphertext)-g.tagSize] // See GCM spec, section 7.1. var counter, tagMask [gcmBlockSize]byte if len(nonce) == gcmStandardNonceSize { // Init counter to nonce||1 copy(counter[:], nonce) counter[gcmBlockSize-1] = 1 } else { // Otherwise counter = GHASH(nonce) gcmAesData(&g.productTable, nonce,...

func IsEncrypted(metadata map[string]string) (Type, bool) {
	if S3KMS.IsEncrypted(metadata) {
		return S3KMS, true
	}
	if S3.IsEncrypted(metadata) {
		return S3, true
	}
	if SSEC.IsEncrypted(metadata) {
		return SSEC, true
	}
	if IsMultiPart(metadata) {
		return nil, true
	}
	if _, ok := metadata[MetaIV]; ok {
		return nil, true
	}
	if _, ok := metadata[MetaAlgorithm]; ok {
		return nil, true

        .setHeader("Sec-WebSocket-Accept", "magic")
        .build(),
    )
    webServer.enqueue(
      MockResponse
        .Builder()
        .onRequestStart(CloseSocket())
        .build(),
    )
    val webSocket = newWebSocket()
    clientListener.assertFailure(
      101,
      null,
      ProtocolException::class.java,