Hi,
I have Oracle 10.2 on Windows 2003. I have recently started working on a project that requires encrypting information before sending it over. I have got 64 character long string to use it as a key.
I am getting ORA-06502: PL/SQL: numeric or value error: raw variable length too long
<pre>
declare
input_string VARCHAR2 (200) := 'SomeText';
output_string VARCHAR2 (200);
encrypted_raw RAW (2000); -- stores encrypted binary text
decrypted_raw RAW (2000); -- stores decrypted binary text
key_bytes_raw RAW (32); -- stores 256-bit encryption key
encryption_type PLS_INTEGER; -- total encryption type
begin
DBMS_OUTPUT.PUT_LINE ('Original string: ' || input_string);
encryption_type := DBMS_CRYPTO.ENCRYPT_AES256 + DBMS_CRYPTO.CHAIN_CBC + DBMS_CRYPTO.PAD_PKCS5;
key_bytes_raw := UTL_I18N.STRING_TO_RAW('eiccmkjd94jfgniw03ljkdlfutcnv3209kfjd67023jlclmxzlmc9543ykflseu6', 'AL32UTF8');
encrypted_raw := DBMS_CRYPTO.ENCRYPT
(
src => UTL_I18N.STRING_TO_RAW (input_string, 'AL32UTF8'),
typ => encryption_type,
key => key_bytes_raw
);
-- The encrypted value in the encrypted_raw variable can be used here
decrypted_raw := DBMS_CRYPTO.DECRYPT
(
src => encrypted_raw,
typ => encryption_type,
key => key_bytes_raw
);
output_string := UTL_I18N.RAW_TO_CHAR (decrypted_raw, 'AL32UTF8');
DBMS_OUTPUT.PUT_LINE ('Decrypted string: ' || output_string);
end;
Please let me know hot to convert 64 character long string in to 256bit key.
Thanks
-Smith