} finally {
            offerEncryptoCipher(cipher);
        }
        return encrypted;
    }

    public byte[] encrypto(final byte[] data, final Key key) {
        final Cipher cipher = pollEncryptoCipher(key);
        byte[] encrypted;
        try {
            encrypted = cipher.doFinal(data);
        } catch (final IllegalBlockSizeException e) {

		}
	}

	_, encrypted = crypto.IsEncrypted(info.UserDefined)
	if !encrypted && crypto.SSEC.IsRequested(headers) && r.Header.Get(xhttp.AmzCopySource) == "" {
		return false, errInvalidEncryptionParameters
	}

	if encrypted {
		if crypto.SSEC.IsEncrypted(info.UserDefined) {
			if !(crypto.SSEC.IsRequested(headers) || crypto.SSECopy.IsRequested(headers)) {

	if err != nil {
		return nil, err
	}
	return io.ReadAll(plaintext)
}

// Encrypt encrypts the plaintext with a key managed by KMS.
// The context is bound to the returned ciphertext.
//
// The same context must be provided when decrypting the
// ciphertext.
func Encrypt(k *kms.KMS, plaintext io.Reader, ctx kms.Context) (io.Reader, error) {
	algorithm := sio.AES_256_GCM

	exit 1
fi

./mc encrypt info myminio/versioned-1 | grep -q "Auto encryption 'sse-kms' is enabled"
ret=$?
if [ $ret -ne 0 ]; then
	echo "BUG: expected encryption enabled after expansion"
	exit 1
fi

got_checksum=$(./mc cat myminio/versioned/dsync/drwmutex.go | md5sum)
if [ "${expected_checksum}" != "${got_checksum}" ]; then

	exit 1
fi

./mc encrypt info myminio/versioned | grep -q "Auto encryption 'sse-s3' is enabled"
ret=$?
if [ $ret -ne 0 ]; then
	echo "BUG: expected encryption enabled after expansion"
	exit 1
fi

got_checksum=$(./mc cat myminio/versioned/dsync/drwmutex.go | md5sum)
if [ "${expected_checksum}" != "${got_checksum}" ]; then

// at an untrusted location.
type SealedKey struct {
	Key       [64]byte // The encrypted and authenticated object-key.
	IV        [32]byte // The random IV used to encrypt the object-key.
	Algorithm string   // The sealing algorithm used to encrypt the object key.
}

// Seal encrypts the ObjectKey using the 256 bit external key and IV. The sealed

	// MetaSealedKeyKMS is the sealed object encryption key in case of SSE-KMS
	MetaSealedKeyKMS = "X-Minio-Internal-Server-Side-Encryption-Kms-Sealed-Key"

	// MetaKeyID is the KMS master key ID used to generate/encrypt the data
	// encryption key (DEK).
	MetaKeyID = "X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id"
	// MetaDataEncryptionKey is the sealed data encryption key (DEK) received from

		if err != nil {
			return
		}
		if sse, err = encrypt.NewSSEC(clientKey[:]); err != nil {
			return
		}
		opts.ServerSideEncryption = sse
		return
	}
	if crypto.S3.IsRequested(header) || (metadata != nil && crypto.S3.IsEncrypted(metadata)) {
		opts.ServerSideEncryption = encrypt.NewSSE()
	}

	return
}

// get ObjectOptions for GET calls from encryption headers

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package crypto

import (
	"github.com/minio/minio/internal/config"
	"github.com/minio/pkg/v3/env"
)

const (
	// EnvKMSAutoEncryption is the environment variable used to en/disable
	// SSE-S3 auto-encryption. SSE-S3 auto-encryption, if enabled,
	// requires a valid KMS configuration and turns any non-SSE-C
	// request into an SSE-S3 request.

			c0++
		}
	}
	c.ctr[0], c.ctr[1] = c0, c1
	// Encrypt the buffer using AES in ECB mode.
	cryptBlocks(c.block.function, &c.block.key[0], &c.buffer[0], &c.buffer[0], streamBufferSize)
}

func (c *aesctr) XORKeyStream(dst, src []byte) {
	if len(dst) < len(src) {
		panic("crypto/cipher: output smaller than input")
	}
	if alias.InexactOverlap(dst[:len(src)], src) {
		panic("crypto/cipher: invalid buffer overlap")
	}
	for len(src) > 0 {