How to get md5 and SHA1 in objective c (iOS sdk)
浏览数：29 /
时间：2015年06月11日
Calculating the md5 and sha1 hash in iOS sdk is pretty simple -
Step 1 – The very first thing you need to do is import CommonCrypto’s CommonDigest.h
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#import <CommonCrypto/CommonDigest.h> |
Step 2 – Here is the real code for calculating SHA1 and MD5 hash -
SHA1 -
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-(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 -
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- (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!
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