The ISO/IEC 18033 series specifies encryption systems for the purpose of data confidentiality. The inclusion of encryption systems in ISO 18033-1 is intended to promote their use as reflecting the current state of the art in encryption systems.
ISO 18033-1 is general in nature and provides definitions that apply in subsequent parts of the ISO 18033 series. ISO 18033-1 introduces the nature of encryption and describes certain general aspects of its use and properties.
ISO 18033-1 on encryption algorithms is useful for:
Encryption systems protect the confidentiality of your stored or transmitted data. There are multiple encryption algorithms that serve different purposes and provide differing levels of security.
ISO 18033-1 introduces you to the terminologies and symbols that would be useful for you when you refer to other parts of the ISO 18033 series to implement information security. By providing this information, ISO 18033-1 gives you clarity on information security.
ISO 18033-1 explains various encryption algorithms and their properties, to help you understand where they are best suited for use.
BS ISO/IEC 180331:2021 cancels and replaces the second edition (ISO/IEC 18033‑1:2015), which has been technically revised. The main changes compared with the previous edition are as follows:
ISO/IEC 18033-1