[英]Oracle Apex 21.1: how to's require for create, store and retrieve (authenticate) users with hashed passwords
i am using Oracle Apex 21.1 and want to implement hashed passwords for users (public page like an eCommerce website).我正在使用 Oracle Apex 21.1 并希望为用户实施散列密码(公共页面,如电子商务网站)。 How i can implement to have this feature in my Oracle Apex applicaation?
如何在我的 Oracle Apex 应用程序中实现此功能? if there is any step by step approach tutorial for beginners, please share the link.
如果有适合初学者的分步方法教程,请分享链接。
DECLARE
input_string VARCHAR2 (200) := 'Secret Message';
output_string VARCHAR2 (200);
encrypted_raw RAW (2000); -- stores encrypted binary text
decrypted_raw RAW (2000); -- stores decrypted binary text
num_key_bytes NUMBER := 256/8; -- key length 256 bits (32 bytes)
key_bytes_raw RAW (32); -- stores 256-bit encryption key
encryption_type PLS_INTEGER := -- total encryption type
DBMS_CRYPTO.ENCRYPT_AES256
+ DBMS_CRYPTO.CHAIN_CBC
+ DBMS_CRYPTO.PAD_PKCS5;
iv_raw RAW (16);
BEGIN
DBMS_OUTPUT.PUT_LINE ( 'Original string: ' || input_string);
key_bytes_raw := DBMS_CRYPTO.RANDOMBYTES (num_key_bytes);
iv_raw := DBMS_CRYPTO.RANDOMBYTES (16);
encrypted_raw := DBMS_CRYPTO.ENCRYPT
(
src => UTL_I18N.STRING_TO_RAW (input_string, 'AL32UTF8'),
typ => encryption_type,
key => key_bytes_raw,
iv => iv_raw
);
-- The encrypted value "encrypted_raw" can be used here
decrypted_raw := DBMS_CRYPTO.DECRYPT
(
src => encrypted_raw,
typ => encryption_type,
key => key_bytes_raw,
iv => iv_raw
);
output_string := UTL_I18N.RAW_TO_CHAR (decrypted_raw, 'AL32UTF8');
DBMS_OUTPUT.PUT_LINE ('Decrypted string: ' || output_string);
END;
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