iOS各种加密总结

1.下载GTMBase64(加密需要)

#import "NSString+DubaiMD5.h"

#import "CommonCrypto/CommonDigest.h"

#import "GTMBase64.h"

#import "GTMDefines.h"

@implementation NSString (DubaiMD5)

+(NSString *) md5: (NSString *) inPutText

{

const char *cStr = [inPutText
UTF8String];

unsigned
char result[CC_MD5_DIGEST_LENGTH];

CC_MD5(cStr, strlen(cStr), result);

return [[NSString
stringWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",

result[0], result[1], result[2], result[3],

result[4], result[5], result[6], result[7],

result[8], result[9], result[10], result[11],

result[12], result[13], result[14], result[15]

] lowercaseString];

}

//SHA1加密方式

- (NSString*) sha1

{

const
char *cstr = [self
cStringUsingEncoding:NSUTF8StringEncoding];

NSData *data = [NSData
dataWithBytes:cstr
length:self.length];

uint8_t digest[CC_SHA1_DIGEST_LENGTH];

CC_SHA1(data.bytes, data.length, digest);

NSMutableString* output = [NSMutableString
stringWithCapacity:CC_SHA1_DIGEST_LENGTH *
2];

for(int i =
0; i < CC_SHA1_DIGEST_LENGTH; i++)

[output appendFormat:@"%02x", digest[i]];

return output;

}

//当然也可以结合BASE64来使用,这里的BASE64编码使用
GTMBase64实现，需要导入

- (NSString *) sha1_base64

{

const
char *cstr = [self
cStringUsingEncoding:NSUTF8StringEncoding];

NSData *data = [NSData
dataWithBytes:cstr
length:self.length];

uint8_t digest[CC_SHA1_DIGEST_LENGTH];

CC_SHA1(data.bytes, data.length, digest);

NSData * base64 = [[NSData
alloc]initWithBytes:digest
length:CC_SHA1_DIGEST_LENGTH];

base64 = [GTMBase64
encodeData:base64];

NSString * output = [[NSString
alloc] initWithData:base64
encoding:NSUTF8StringEncoding];

return output;

}

- (NSString *) md5_base64

{

const char *cStr = [self
UTF8String];

unsigned
char digest[CC_MD5_DIGEST_LENGTH];

CC_MD5( cStr,
strlen(cStr), digest );

NSData * base64 = [[NSData
alloc]initWithBytes:digest
length:CC_MD5_DIGEST_LENGTH];

base64 = [GTMBase64
encodeData:base64];

NSString * output = [[NSString
alloc] initWithData:base64
encoding:NSUTF8StringEncoding];

return output;

}

- (NSString *) base64

{

NSData * data = [self
dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:YES];

data = [GTMBase64
encodeData:data];

NSString * output = [[NSString
alloc] initWithData:data
encoding:NSUTF8StringEncoding];

return output;

}

@end

调用

NSString *md5Str = [NSString
md5:@"6678"];

NSLog(@"-----%@-----",md5Str);//

c4f8a2db7f8704b0bdaa266d61ef48c3

NSString *s =
@"6687";

NSString *n = [s
sha1];

NSLog(@"-----%@-----",n);//

5ee201b29a1d57f4fb86bc1972597c3edb1a4eff

NSString *m = [s
sha1_base64];

NSLog(@"-----%@-----",m);//

XuIBspodV/T7hrwZcll8PtsaTv8=

NSString *q = [s
md5_base64];

NSLog(@"-----%@-----",q);//

zfKPi30UqwLRKiMp1x5AeQ==

NSString *t = [s
base64];

NSLog(@"-----%@-----",t);//

NjY4Nw==