Hash string with SHA512 in Swift

Question

Anyone knows how to reproduce PHP hashing method hash(‘SHA512’, $value, true) in swift ? I tried to use CommonCrypto C library with this code :

extension String          


        

Answer 1

Updating this with swift 4

func sha512Hex( string: String) -> String {
    var digest = [UInt8](repeating: 0, count: Int(CC_SHA512_DIGEST_LENGTH))
    if let data = string.data(using: String.Encoding.utf8) {
        let value =  data as NSData
        CC_SHA512(value.bytes, CC_LONG(data.count), &digest)

    }
    var digestHex = ""
    for index in 0.. [UInt8] {
    var digest = [UInt8](repeating: 0, count: Int(CC_SHA512_DIGEST_LENGTH))
    let data = string.data(using: String.Encoding.utf8 , allowLossyConversion: true)
    let value =  data! as NSData
    CC_SHA512(value.bytes, CC_LONG(value.length), &digest)

    return digest
}

func sha512Base64(string: String) -> String {
    let digest = NSMutableData(length: Int(CC_SHA512_DIGEST_LENGTH))!
    if let data = string.data(using: String.Encoding.utf8) {

        let value =  data as NSData
        let uint8Pointer = UnsafeMutablePointer.allocate(capacity: digest.length)
        CC_SHA512(value.bytes, CC_LONG(data.count), uint8Pointer)

    }
    return digest.base64EncodedString(options: NSData.Base64EncodingOptions([]))
}

Testing

    let vad = sha512Hex(string: "8yOrBmkd")
    print(vad)

    let digestRaw = sha512(string:"8yOrBmkd")
    print("decimal array:\n\(digestRaw)")
    print("hexadecimal:\n\(NSData(bytes:digestRaw, length:digestRaw.count).description)")

    let digestBase64 = sha512Base64(string:"8yOrBmkd")
    print("Base64:\n\(digestBase64)")