Org.BouncyCastle.Crypto.Encodings.Pkcs1Encoding.GetInputBlockSize C# (CSharp) Method

		public int GetInputBlockSize()
		{
			int baseBlockSize = engine.GetInputBlockSize();

			return forEncryption
				?	baseBlockSize - HeaderLength
				:	baseBlockSize;
		}

        /// <summary>
        /// The decrypt.
        /// </summary>
        /// <param name="encrypted">
        /// The encrypted.
        /// </param>
        /// <param name="pk">
        /// The pk.
        /// </param>
        /// <returns>
        /// The <see cref="string"/>.
        /// </returns>
        private string Decrypt(string encrypted, PrivateKey pk)
        {
            var keyParam = pk.GetPrivateKeyParam();
            var engine = new Pkcs1Encoding(new RsaEngine());
            engine.Init(false, keyParam);
            var blockSize = engine.GetInputBlockSize();

            byte[] bytes = Convert.FromBase64String(encrypted);
            byte[] dec = engine.ProcessBlock(bytes, 0, blockSize);
            var clear = this.ToUTF8String(dec);
            return clear;
        }