It may be that after converting to base64, it is in NSData format, which is binary data, not a string. Do des directly on this NSData data. Ask about the specific process of Android, including the input and output format of encryption and decryption processing
It may be that after converting to base64, it is in NSData format, which is binary data, not a string. Do des directly on this NSData data. Ask about the specific process of Android, including the input and output format of encryption and decryption processing