[移动开发]swiftUI之如何进行sha256加密

方法

扩展data支持将字符串进行sha256加密

import Foundation
import CommonCrypto
import CryptoKit

func hexString(_ iterator:Array<UInt8>.Iterator) -> String{
    return iterator.map{
        String(format: "%02x", $0)
    }.joined()
}
extension Data {
    /// 扩展data支持将字符串进行sha256加密
    var sha256: String {
        if #available(OSX 10.15, *){
            return hexString(SHA256.hash(data: self).makeIterator())
        }else{
            var disest = [UInt8](repeating: 0, count: Int(CC_SHA256_DIGEST_LENGTH))
            self.withUnsafeBytes {
                bytes in
                _ = CC_SHA256(bytes.baseAddress,CC_LONG(self.count),&disest)
            }
            return hexString(disest.makeIterator())
        }
    }

}

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