有人在 Swift 3.0 中寻找解决方案。这是
extension String {
// MARK: - SHA256
func get_sha256_String() -> String {
guard let data = self.data(using: .utf8) else {
print("Data not available")
return ""
}
return getHexString(fromData: digest(input: data as NSData))
}
private func digest(input : NSData) -> NSData {
let digestLength = Int(CC_SHA256_DIGEST_LENGTH)
var hashValue = [UInt8](repeating: 0, count: digestLength)
CC_SHA256(input.bytes, UInt32(input.length), &hashValue)
return NSData(bytes: hashValue, length: digestLength)
}
private func getHexString(fromData data: NSData) -> String {
var bytes = [UInt8](repeating: 0, count: data.length)
data.getBytes(&bytes, length: data.length)
var hexString = ""
for byte in bytes {
hexString += String(format:"%02x", UInt8(byte))
}
return hexString
}}
如何使用它
let signatures = "yourStringToBeConverted".get_sha256_String()
也不要忘记#import <CommonCrypto/CommonHMAC.h>
在您的Bridging-Header.h中导入