SHA-256

基本实现了Hash加密中SHA256的功能，仍有需要完善的地方，大家一起学习学习

use hash to realize SHA256 with the C language.

Name		Name	Last commit message	Last commit date
Latest commit History 39 Commits
README.md		README.md
main.c		main.c
sha256.c		sha256.c
sha256.h		sha256.h

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