objective-c md5例子
转自:http://www.cnblogs.com/tracy-e/archive/2011/04/13/1877351.html
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@interface NSString (MyExtensions)
- (NSString *) md5;
@end
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@implementation NSString (MyExtensions)
- (NSString *) md5
{
? ? const char *cStr = [self UTF8String];
? ? unsigned char result[16];
? ? CC_MD5( cStr, strlen(cStr), result ); // This is the md5 call
? ? 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]
]; ?
}
@end
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