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MD5 with CommonCrypto in Swift 3.0
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| // requires a bridging header with this: | |
| // #import <CommonCrypto/CommonCrypto.h> | |
| func MD5(_ string: String) -> String? { | |
| let length = Int(CC_MD5_DIGEST_LENGTH) | |
| var digest = [UInt8](repeating: 0, count: length) | |
| if let d = string.data(using: String.Encoding.utf8) { | |
| d.withUnsafeBytes { (body: UnsafePointer<UInt8>) in | |
| CC_MD5(body, CC_LONG(d.count), &digest) | |
| } | |
| } | |
| return (0..<length).reduce("") { | |
| $0 + String(format: "%02x", digest[$1]) | |
| } | |
| } |
There is a warning: Result of call to 'withUnsafeBytes' is unused
Maybe a simpler version, without the warning:
func md5(string: String) -> String {
let length = Int(CC_MD5_DIGEST_LENGTH)
var digest = [UInt8](repeating: 0, count: length)
var data = string.utf8
CC_MD5(&data, CC_LONG(data.count), &digest)
return digest.map { String(format: "%02x", $0) }.joined()
}Use "%02X" for uppercase.
Update for Swift 5?
The last one from April 5th, works with Swift 5 also
I'm seeing this
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Good!