MD5 encryption and salt-adding encryption

This is MD5 encryption.

-(nsstring *) Md5hash

{

Const char *cstr = [self utf8string];

unsigned char result[];

cc_md5(cStr, strlen(cStr), result);

nsstring * string= [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[,result[],

Result[], result[[] , result[], result[]];

return [string lowercasestring ]; This is the lowercase letter taken .

}

Adding salt means a secret key or a little bit of seasoning. In fact, the original string added a string of secret key and then use the top of the MD5 encryption to form a ciphertext because MD5 irreversible so commonly used to verify PWD

The general salt is such a pw= 123456

The salt value is pwd

Add salt is 123456{PWS}

The cipher that forms is 754dafae4bc423bcf7598eaac5a2abf7.

Ciphertext has 16 32 64 128 is actually the original cipher two processing and no other encryption in it

MD5 encryption and salt-adding encryption