IDEA algorithm in Python
4.0
idea.c - C source code for IDEA block cipher. IDEA (International Data Encryption Algorithm), formerly known as IPES (Improved Proposed Encryption Standard). Algorithm developed by Xuejia Lai and James L. Massey, of ETH Zurich. This implementation modified and derived from original C code developed by Xuejia Lai. Zero-based indexing added, names changed from IPES to IDEA. CFB functions added. Random number routines added.