Possible Duplicate:
Is there a library for iPhone to work with HMAC-SHA-1 encoding
Trying to Write NSString sha1 function, but it’s returning null
Objective C: SHA1
How to calculate the SHA1 of NSString in iphone?Which api can be used ?
Possible Duplicate:
Is there a library for iPhone to work with HMAC-SHA-1 encoding
Trying to Write NSString sha1 function, but it’s returning null
Objective C: SHA1
How to calculate the SHA1 of NSString in iphone?Which api can be used ?