在Swift中通過(guò)調(diào)用OC的CommonCrypto庫(kù)可以很方便的實(shí)現(xiàn)String字符串加密阱冶。
創(chuàng)建了一個(gè)swift和OC橋接的文件，引入頭文件
#import <CommonCrypto/CommonCrypto.h>
擴(kuò)展String類(lèi)
extension String {
func Md5() -> String {
let str = self.cStringUsingEncoding(NSUTF8StringEncoding)
let strLen = CUnsignedInt(self.lengthOfBytesUsingEncoding(NSUTF8StringEncoding))
let digestLen = Int(CC_MD5_DIGEST_LENGTH)
let result = UnsafeMutablePointer<CUnsignedChar>.alloc(digestLen)
CC_MD5(str!, strLen, result)
let hash = NSMutableString()
for i in 0..<digestLen {
hash.appendFormat("%02x", result[i])
}
result.dealloc(digestLen)
return String(hash)
}
func Sha1() -> String {
let data = self.dataUsingEncoding(NSUTF8StringEncoding)!
var digest = [UInt8](count:Int(CC_SHA1_DIGEST_LENGTH), repeatedValue: 0)
CC_SHA1(data.bytes, CC_LONG(data.length), &digest)
let output = NSMutableString(capacity: Int(CC_SHA1_DIGEST_LENGTH))
for byte in digest {
output.appendFormat("%02x", byte)
}
return output as String
}
}
