dsaalloc.c

来自「这是一个同样来自贝尔实验室的和UNIX有着渊源的操作系统, 其简洁的设计和实现易」· C语言 代码 · 共 73 行

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#include "os.h"#include <mp.h>#include <libsec.h>DSApub*dsapuballoc(void){	DSApub *dsa;	dsa = mallocz(sizeof(*dsa), 1);	if(dsa == nil)		sysfatal("dsapuballoc");	return dsa;}voiddsapubfree(DSApub *dsa){	if(dsa == nil)		return;	mpfree(dsa->p);	mpfree(dsa->q);	mpfree(dsa->alpha);	mpfree(dsa->key);	free(dsa);}DSApriv*dsaprivalloc(void){	DSApriv *dsa;	dsa = mallocz(sizeof(*dsa), 1);	if(dsa == nil)		sysfatal("dsaprivalloc");	return dsa;}voiddsaprivfree(DSApriv *dsa){	if(dsa == nil)		return;	mpfree(dsa->pub.p);	mpfree(dsa->pub.q);	mpfree(dsa->pub.alpha);	mpfree(dsa->pub.key);	mpfree(dsa->secret);	free(dsa);}DSAsig*dsasigalloc(void){	DSAsig *dsa;	dsa = mallocz(sizeof(*dsa), 1);	if(dsa == nil)		sysfatal("dsasigalloc");	return dsa;}voiddsasigfree(DSAsig *dsa){	if(dsa == nil)		return;	mpfree(dsa->r);	mpfree(dsa->s);	free(dsa);}

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