A RSA_SHA1 digital signature library, written in pure C, can be compiled successfully from various platforms without any other package dependencies, so it can be easily portable and suitable for learning from friends who are interested in it PS: the same package has not been uploaded. I don't know if it is buggy. Reupload after minor changes

Packet : 55593361c_sha1_rsa.rar filelist
sha1_rsa\bignum.c
sha1_rsa\bignum.h
sha1_rsa\bn_mul.h
sha1_rsa\config.h
sha1_rsa\Makefile
sha1_rsa\Makefile.arm
sha1_rsa\rsa.c
sha1_rsa\rsa.h
sha1_rsa\sha1.c
sha1_rsa\sha1.h
sha1_rsa

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