Fix Regex for private keys to accept keys with longer lines (for example Amazon services)

Renci.SshClient/Renci.SshNet/PrivateKeyFile.cs

@@ -23,9 +23,9 @@ namespace Renci.SshNet
     public class PrivateKeyFile : IDisposable
     {
 #if SILVERLIGHT
-        private static Regex _privateKeyRegex = new Regex(@"^-----BEGIN (?<keyName>\w+) PRIVATE KEY-----\r?\n(Proc-Type: 4,ENCRYPTED\r?\nDEK-Info: (?<cipherName>[A-Z0-9-]+),(?<salt>[A-F0-9]+)\r?\n\r?\n)?(?<data>([a-zA-Z0-9/+=]{1,64}\r?\n)+)-----END \k<keyName> PRIVATE KEY-----.*", RegexOptions.Multiline);
+        private static Regex _privateKeyRegex = new Regex(@"^-----BEGIN (?<keyName>\w+) PRIVATE KEY-----\r?\n(Proc-Type: 4,ENCRYPTED\r?\nDEK-Info: (?<cipherName>[A-Z0-9-]+),(?<salt>[A-F0-9]+)\r?\n\r?\n)?(?<data>([a-zA-Z0-9/+=]{1,72}\r?\n)+)-----END \k<keyName> PRIVATE KEY-----.*", RegexOptions.Multiline);
 #else
-        private static Regex _privateKeyRegex = new Regex(@"^-----BEGIN (?<keyName>\w+) PRIVATE KEY-----\r?\n(Proc-Type: 4,ENCRYPTED\r?\nDEK-Info: (?<cipherName>[A-Z0-9-]+),(?<salt>[A-F0-9]+)\r?\n\r?\n)?(?<data>([a-zA-Z0-9/+=]{1,64}\r?\n)+)-----END \k<keyName> PRIVATE KEY-----.*", RegexOptions.Compiled | RegexOptions.Multiline);
+        private static Regex _privateKeyRegex = new Regex(@"^-----BEGIN (?<keyName>\w+) PRIVATE KEY-----\r?\n(Proc-Type: 4,ENCRYPTED\r?\nDEK-Info: (?<cipherName>[A-Z0-9-]+),(?<salt>[A-F0-9]+)\r?\n\r?\n)?(?<data>([a-zA-Z0-9/+=]{1,72}\r?\n)+)-----END \k<keyName> PRIVATE KEY-----.*", RegexOptions.Compiled | RegexOptions.Multiline);
 #endif
 
         private Key _key;