Java SDK

//从腾讯云官网查询的云 API 密钥信息
String secretId="";
String secretKey="";
String endpoint = "";       
KMSAccount account = new KMSAccount(endpoint,secretId, secretKey);

account.setSignMethod("sha256");

public KeyMetadata create_key(String Description,String Alias ,String KeyUsage) throws Exception

String Description = "test";
String Alias= "test";
String KeyUsage = "ENCRYPT/DECRYPT";
KeyMetadata meta = account.create_key(Description , Alias , KeyUsage);

public KeyMetadata get_key_attributes(String KeyId) throws Exception

meta = account.get_key_attributes(KeyId);

 public void set_key_attributes(String KeyId , String Alias) throws Exception

Alias = "for test";
account.set_key_attributes(KeyId, Alias);

public void  list_key(int offset, int limit,List<String> KeyList) throws Exception

ArrayList<String> KeyId  = new ArrayList<String>();
account.list_key(-1,-1,KeyId);
for(int i = 0 ; i < KeyId.size(); ++i)
    System.out.println("the " +Integer.toString(i) + "Key id is " + KeyId.get(i));

public String generate_data_key(String KeyId, String KeySpec, int NumberOfBytes , String EncryptionContext,String Plaintext ) throws Exception

String KeySpec = "AES_128";
String Plaintext  = "";   		
String CiphertextBlob = account.generate_data_key(meta.KeyId, KeySpec,1024,"",Plaintext);
System.out.println("the data key string is " + Plaintext);
System.out.println("the encrypted data key string is "+CiphertextBlob);

public void enable_key(String KeyId) throws Exception

account.enable_key(KeyId);

public void disable_key(String KeyId) throws Exception

account.disable_key(KeyId);

def encrypt(self, KeyId=None, Plaintext="", EncryptionContext=None)

CiphertextBlob  = account.encrypt(KeyId, Plaintext,"");
System.out.println("the encrypted data is " + CiphertextBlob);

public String decrypt(String CiphertextBlob , String EncryptionContext)throws Exception

Plaintext = account.decrypt( Plaintext,"");
System.out.println("the decrypted data is " + Plaintext);