We can use Crypto.encryptWithManagedIV() and Crypto.decryptWithManagedIV() with at least 16 bytes key for Advanced Encryption Standard(AES) using Salesforce Apex.
Sample Code:
/* Encryption */
Blob key = Blob.valueOf(
'1234567890=abcde'
);
Blob blobData = Blob.valueOf(
'Sample Data to be encrypted'
);
Blob encryptedBlob = Crypto.encryptWithManagedIV(
'AES128',
key,
blobData
);
/* Decryption */
Blob decryptedBlob = Crypto.decryptWithManagedIV(
'AES128',
key,
encryptedBlob
);
String decryptedString = decryptedBlob.toString();
System.debug(
decryptedString
);
