Gravatar for iphone?我如何生成十六进制MD5哈希? [英] Gravatar for Iphone? How do I generate a hexadecimal MD5 hash?
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问题描述
我想在我的iPhone应用程序中使用 gravatar 。无论如何,在Objective-C for iPhone中生成十六进制MD5哈希值?在iPhone上使用openssl是不行的。
I'd like to use gravatar in my iPhone application. Is there anyway to generate a hexadecimal MD5 hash in Objective-C for iPhone? Using openssl on iPhone is a no-go.
推荐答案
在我从应用程序中删除它之前, / p>
This is how I did it before I removed it from my app:
#import <CommonCrypto/CommonDigest.h>
NSString* md5( NSString *str ) {
const char *cStr = [str 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];
}
只需要补充一点,我没有自己写这个。我发现它在互联网上的某个地方,但我没有记录在哪里。
It's only fair to add that I didn't write this myself. I found it somewhere on the internet but I didn't record where.
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