iOS SDK计算SHA1和MD5

How to get md5 and SHA1 in objective c (iOS sdk) Calculating the md5 and sha1 hash in iOS sdk is pretty simple - Step 1 �C The very first thing you need to do is import CommonCrypto’s CommonDigest.h ? 戴维营教育代码 1 #import <CommonCrypto/CommonDigest.h> Step 2 �C Here is the real code for calculating SHA1 and MD5 hash - SHA1 - ? 戴维营教育代码 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 -( NSString *) sha1:( NSString *)input { const char *cstr = [input cStringUsingEncoding: NSUTF8StringEncoding ]; NSData *data = [ NSData dataWithBytes:cstr length:input.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; } MD5 - ? 戴维营教育代码 01 02 03 04 05 06 07 08 09 10 11 12 13 14 - ( NSString *) md5:( NSString *) input { const char *cStr = [input UTF8String]; unsigned char digest[16]; CC_MD5( cStr, strlen(cStr), digest ); // This is the md5 call NSMutableString *output = [ NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2]; for ( int i = 0; i < CC_MD5_DIGEST_LENGTH; i++) [output appendFormat: @"%02x" , digest[i]]; return output; } Hope it will help someone!! via: http://www.makebetterthings.com/ ... bjective-c-ios-sdk/

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