使用SHA1在C＃和IOS中加密

Question

C＃代码。

SHA1 hash = SHA1.Create(); 
ASCIIEncoding encoder = new ASCIIEncoding(); 
byte[] combined = encoder.GetBytes(password); 
hash.ComputeHash(combined); 
passwordHash = Convert.ToBase64String(hash.Hash); 

如何在IOS中获得相同的结果？请帮帮我。

到目前为止，我已经做了这么多，但结果比C＃

NSString *password = @"XABCVKXMWJ"; // your password 

CFIndex asciiLength; 
// Determine length of converted data: 
CFStringGetBytes((__bridge CFStringRef)(password), CFRangeMake(0, [password length]), 
       kCFStringEncodingASCII, '?', false, NULL, 0, &asciiLength); 
// Allocate buffer: 
uint8_t *asciiBuffer = malloc(asciiLength); 
// Do the conversion: 
CFStringGetBytes((__bridge CFStringRef)(password), CFRangeMake(0, [password length]), 
       kCFStringEncodingASCII, '?', false, asciiBuffer, asciiLength, NULL); 
unsigned char hash[CC_SHA1_DIGEST_LENGTH]; 
CC_SHA1(asciiBuffer, asciiLength, hash); 
free(asciiBuffer); 
NSData *result = [NSData dataWithBytes:hash length:CC_SHA1_DIGEST_LENGTH]; 

是不同的，结果我从C＃代码得到的是 uSFCLAZZHkBVN7xViO3hKkhhR/S =

和IOS，它是 uSFCLAZZHkBVN7xViO3hKkhhR + s =

Answer 1

iOS的结果是正确的，C＃和iOS之间有一些区别，可能combined是不同的。验证C＃代码中每个步骤的中间值，查看下面示例代码中的所有中间值。

这是我的Objective-C实现，它产生与您一样的结果。
注意：不需要使用Core Foundation或malloc。

#import <CommonCrypto/CommonCrypto.h> 

NSString *password = @"XABCVKXMWJ"; 

NSData *combined = [password dataUsingEncoding:NSUTF8StringEncoding]; 
NSMutableData *hash = [NSMutableData dataWithLength:CC_SHA1_DIGEST_LENGTH]; 
CC_SHA1(combined.bytes, (unsigned int)combined.length, hash.mutableBytes); 
NSString *passwordHash = [hash base64EncodedStringWithOptions:0]; 

NSLog(@"password:  %@", password); 
NSLog(@"combined:  %@", combined); 
NSLog(@"hash:   %@", hash); 
NSLog(@"passwordHash: %@", passwordHash); 

输出：

 
password:  XABCVKXMWJ 
combined:  58414243564b584d574a 
hash:   b921422c06591e405537bc5588ede12a486147eb 
passwordHash: uSFCLAZZHkBVN7xViO3hKkhhR+s=