iOS SHA1 和 Base64 url_safe 加密
网上查找的资料SHA1加密后大部分获取的是字符串，如果还要进行下一步操作时，一定要慎用字符串，我最近在做SHA1 和 Base64 url_safe 加密，用SHA1加密后的获取字符串进行Base64编码，但是得到的数值对比安卓和后台接口得到的数值都不一样，安卓和后台SHA1可以直接获取二进制流，然后进行Base64编码，iOS SHA1没法直接获取data数据，如果转换成字符串在进行Base64编码，得到的数据就不统一，这是一个很大的坑，一定要看好 Demo地址
#import "XWSSHA1Tool.h"
#import
#import "GTMBase64.h"
@implementation XWSSHA1Tool
//普通字符串加密，返回值字符串
+ (NSString *)xwsSHA1:(NSString *)input
{
constchar*cstr = [input cStringUsingEncoding:NSUTF8StringEncoding];
NSData *data = [NSData dataWithBytes:cstr length:input.length];
uint8_t digest[CC_SHA1_DIGEST_LENGTH];
CC_SHA1(data.bytes, (unsignedint)data.length, digest);
NSMutableString* output = [NSMutableString stringWithCapacity:CC_SHA1_DIGEST_LENGTH *2];
for(inti =0; i < CC_SHA1_DIGEST_LENGTH; i++)
[output appendFormat:@"%02x", digest[i]];
NSString *shaStr = [NSString stringWithFormat:@"%@",output];
NSData *dataBase = [shaStr dataUsingEncoding:NSUTF8StringEncoding];
NSString *base64String = [dataBase base64EncodedStringWithOptions:0];
returnbase64String;
}
//带有汉子类型加密，返回值字符串
+ (NSString *)xwsHanziSHA1:(NSString *)input
{
NSData *data = [input dataUsingEncoding:NSUTF8StringEncoding];
uint8_t digest[CC_SHA1_DIGEST_LENGTH];
CC_SHA1(data.bytes, (unsignedint)data.length, digest);
NSMutableString *output = [NSMutableString stringWithCapacity:CC_SHA1_DIGEST_LENGTH *2];
for(inti=0; i
[output appendFormat:@"%02x", digest[i]];
}
returnoutput;
}
//普通字符串加密，返回值字NSData
+ (NSData *)getDataSHA1:(NSString *)input
{
constchar*cstr = [input cStringUsingEncoding:NSUTF8StringEncoding];
NSData *data = [NSData dataWithBytes:cstr length:input.length];
uint8_t digest[CC_SHA1_DIGEST_LENGTH];
CC_SHA1(data.bytes, (unsignedint)data.length, digest);
NSData * base64 = [[NSData alloc]initWithBytes:digest length:CC_SHA1_DIGEST_LENGTH];
returnbase64;
}
//先SHA1后进行Base64（url_safe）
+ (NSString *)getSHA1WithBase64:(NSString *)input
{
constchar*cstr = [input cStringUsingEncoding:NSUTF8StringEncoding];
NSData *data = [NSData dataWithBytes:cstr length:input.length];
uint8_t digest[CC_SHA1_DIGEST_LENGTH];
CC_SHA1(data.bytes, (unsignedint)data.length, digest);
//SHA1直接转data
NSData * base64 = [[NSData alloc]initWithBytes:digest length:CC_SHA1_DIGEST_LENGTH];
//SHA1进行Base64编码
//Base64编码中包含有"+,/,="不安全的URL字符串，我们要对这些字符进行转换
NSString * base64Str = [GTMBase64 encodeBase64Data:base64];
NSMutableString * safeBase64Str = [[NSMutableString alloc]initWithString:base64Str];
safeBase64Str = (NSMutableString * )[safeBase64Str stringByReplacingOccurrencesOfString:@"+"withString:@"-"];
safeBase64Str = (NSMutableString * )[safeBase64Str stringByReplacingOccurrencesOfString:@"/"withString:@"_"];
safeBase64Str = (NSMutableString * )[safeBase64Str stringByReplacingOccurrencesOfString:@"="withString:@""];
NSLog(@"safeBase64编码：%@", safeBase64Str);
returnsafeBase64Str;
}
