Sm4 encryption and decryption c language source. The most common source code on the Internet (the original code download link: http: //www.pudn.com/downloads659/sourcecode/others/detail2676934.html) was modified and improved. The download of the original code, the input data is greater than 16 bytes, cbc mode encryption, re-decryption will be an error. The reason for the error is that ckc mode causes the original code to cause improper use of the initial variable.

test_sm4\test_sm4\ReadMe.txt
........\........\sm4.c
........\........\sm4.h
........\........\stdafx.cpp
........\........\stdafx.h
........\........\targetver.h
........\........\test_main.cpp
........\........\test_sm4.vcxproj
........\........\test_sm4.vcxproj.filters
........\........\test_sm4.vcxproj.user
........\test_sm4.sln
........\test_sm4.v11.suo
........\Debug
........\test_sm4
test_sm4

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