Implement IDEA Block Cipher and IDEAMODMUL component with vectorized evaluation #375
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peacker
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tests/unit/cipher_modules/generic_functions_vectorized_byte_test.py
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- Implement IDEA (International Data Encryption Algorithm) block cipher - Add IDEA_MODMUL component for modular multiplication with 02^16 mapping - Support for 64-bit and 128-bit key sizes - Include key schedule generation - Add comprehensive test suite with NESSIE test vectors (36 tests) - Implement vectorized evaluation (bit and byte-based) - All tests pass including official test vectors
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This PR adds the IDEA block cipher, including:
(a * b) mod (2^16 + 1)with special zero mapping.byte_vector_MODMUL).