return key, err
	}
	unsealKey, err := k.Decrypt(context.TODO(), &kms.DecryptRequest{
		Name:           keyID,
		Ciphertext:     kmsKey,
		AssociatedData: kms.Context{bucket: path.Join(bucket, object)},
	})
	if err != nil {
		return key, err
	}
	err = key.Unseal(unsealKey, sealedKey, s3.String(), bucket, object)
	return key, err
}

// UnsealObjectsKeys extracts and decrypts all sealed object keys

		return nil, errClientKeyExchange
	}
	ciphertext := ckx.ciphertext[2:]

	priv, ok := cert.PrivateKey.(crypto.Decrypter)
	if !ok {
		return nil, errors.New("tls: certificate private key does not implement crypto.Decrypter")
	}
	// Perform constant time RSA PKCS #1 v1.5 decryption
	preMasterSecret, err := priv.Decrypt(config.rand(), ciphertext, &rsa.PKCS1v15DecryptOptions{SessionKeyLen: 48})
	if err != nil {
		return nil, err
	}

}

// Equal returns true if and only if the two ETags are
// identical.
func Equal(a, b ETag) bool { return bytes.Equal(a, b) }

// Decrypt decrypts the ETag with the given key.
//
// If the ETag is not encrypted, Decrypt returns
// the ETag unmodified.
func Decrypt(key []byte, etag ETag) (ETag, error) {
	const HMACContext = "SSE-etag"

	if !etag.IsEncrypted() {
		return etag, nil
	}

Klaus Post <******@****.***> 1712870567 -0700

Klaus Post <******@****.***> 1712870567 -0700

			crypto.MetaKeyID:             "kms-key",
			crypto.MetaDataEncryptionKey: "m-key",
		},
		encryptionType: encrypt.S3,
		err:            nil,
	}, // 4
	{
		headers:    http.Header{},
		copySource: true,
		metadata: map[string]string{
			crypto.MetaSealedKeyS3:       base64.StdEncoding.EncodeToString(make([]byte, 64)),
			crypto.MetaKeyID:             "kms-key",
			crypto.MetaDataEncryptionKey: "m-key",

	mustPanic(t, "crypto/aes: input not full block", func() { c.Encrypt(bytes(1), bytes(1)) })
	mustPanic(t, "crypto/aes: input not full block", func() { c.Decrypt(bytes(1), bytes(1)) })
	mustPanic(t, "crypto/aes: input not full block", func() { c.Encrypt(bytes(100), bytes(1)) })
	mustPanic(t, "crypto/aes: input not full block", func() { c.Decrypt(bytes(100), bytes(1)) })

		if rs != nil {
			off, length, err = rs.GetOffsetLength(actualSize)
			if err != nil {
				return nil, 0, 0, err
			}
			decrypt := func(b []byte) ([]byte, error) {
				return b, nil
			}
			if isEncrypted {
				decrypt = func(b []byte) ([]byte, error) {
					return oi.compressionIndexDecrypt(b, h)
				}
			}

                }

                try {
                    byte[] decrypted = KerberosEncData.decrypt(crypt, serverKey, serverKey.getKeyType());
                    this.encData = new KerberosEncData(decrypted, keysByAlgo);
                }
                catch ( GeneralSecurityException e ) {
                    throw new PACDecodingException("Decryption failed " + serverKey.getKeyType(), e);
                }
                break;

import java.util.Enumeration;
import java.util.List;
import java.util.Map;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.Mac;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.kerberos.KerberosKey;