aescryptoserviceprovider

AES and its cipher modes

由 不问归期 提交于 2020-01-16 03:41:29
问题 I was trying encryption/decryption with AES then I tried the CBC & ECB modes I got the same encrypted output from all three ! is this how it goes? it's may not be wrong but I just don't know what to expect . and what's the point of having modes if they all produce the same cipher ? is it time or performance complexity ? can you explain the difference between AES and its cipher modes ? what's the default cipher mode ? or if you can give me any references cuz MSDN is not clear enough thank you

Generate key using Pass Phrase or AesCryptoServiceProvider?

由 不问归期 提交于 2020-01-04 09:28:08
问题 We using AES encryption to encrypt the data. Generating a key once in a year using some app(i.e console) so which way i have to choose to generate the key? 1. Do we need to generate the key using the Pass Phrase method? 2. Or we have to choose the default generate key provided by AESCryptoServiceProvider? The below method uses Pass Phrase for generating the encryption. Method 1: private static readonly byte[] Salt = new byte[] { 10, 20, 30, 40, 50, 60, 70, 80 }; private static byte[]

Good AES Initialization Vector practice

由 北战南征 提交于 2019-12-17 04:16:51
问题 per my question Aes Encryption... missing an important piece, I have now learned that my assumption for creating a reversible encryption on a string was a bit off. I now have public static byte[] EncryptString(string toEncrypt, byte[] encryptionKey) { var toEncryptBytes = Encoding.UTF8.GetBytes(toEncrypt); using (var provider = new AesCryptoServiceProvider()) { provider.Key = encryptionKey; provider.Mode = CipherMode.CBC; provider.Padding = PaddingMode.PKCS7; using (var encryptor = provider

Aes Encryption… missing an important piece

由 允我心安 提交于 2019-12-14 02:36:55
问题 I have a method in my static Encryption class that looks like this: public static byte[] EncryptString(string toEncrypt, byte[] encryptionKey) { var toEncryptBytes = Encoding.UTF8.GetBytes(toEncrypt); using (var provider = new AesCryptoServiceProvider()) { provider.Key = encryptionKey; provider.Mode = CipherMode.ECB; provider.Padding = PaddingMode.ISO10126; using (var encryptor = provider.CreateEncryptor(provider.Key, provider.IV)) { using (var ms = new MemoryStream()) { using (var cs = new

nodejs aes256 encrypt is different from online aes256 encryption tool

由 ♀尐吖头ヾ 提交于 2019-12-12 05:48:15
问题 I encrypted word HelloWorld using nodejs-aes256 https://www.npmjs.com/package/nodejs-aes256 with key apple the output was 1ivBqj+nVPcHvZjQlx7Di0SoxV49bNpWtog= then I encrypted same word with same key using online tool http://aesencryption.net/ the output was LIxrc1buLeLLr9nJxtPhjHSYFVaceqsXiFamWiVWzYI= Whey are they different? 回答1: First, "apple" can't be a key for AES-256. It's not long enough. An AES-256 key has to be exactly 256 bits (32 bytes). "apple" is, in the likely ways of encoding

How to Decrypt EncryptedAssertion using System.Cryptography

由 送分小仙女□ 提交于 2019-12-10 13:25:03
问题 The Identity provider is encrypting the Saml Assertion using the functions of component pro Dim encryptedSamlAssertion As New EncryptedAssertion(samlAssertion, encryptingCert, New System.Security.Cryptography.Xml.EncryptionMethod(SamlKeyAlgorithm.Aes256Cbc)) At the Service Provider I am trying to Decrypt the assertion. But I cannot use component pro. I have to use System.Security.Cryptography X509Certificate is used for encrypting and decryption Aes256Cbc is the Encryption Algorithm Please

AES encryptor not working

由 和自甴很熟 提交于 2019-12-02 19:17:52
问题 I am attempting to get this AES sample code working. However I am not getting anything returned to my cipherText variable. I am not getting errors, just nothing returned. What am I doing wrong here? public byte[] key { get; set; } public byte[] IV { get; set; } public byte[] ciphertext { get; set; } public string plainText { get; set; } public byte[] Encrypt(string InputPlaintext) { InputPlaintext = "attack at dawn"; using (AesCryptoServiceProvider AESEncryptor = new AesCryptoServiceProvider(

AES encryptor not working

由 妖精的绣舞 提交于 2019-12-02 08:20:07
I am attempting to get this AES sample code working. However I am not getting anything returned to my cipherText variable. I am not getting errors, just nothing returned. What am I doing wrong here? public byte[] key { get; set; } public byte[] IV { get; set; } public byte[] ciphertext { get; set; } public string plainText { get; set; } public byte[] Encrypt(string InputPlaintext) { InputPlaintext = "attack at dawn"; using (AesCryptoServiceProvider AESEncryptor = new AesCryptoServiceProvider()) { ////using the AesCryptoServiceProvider to generate the IV and Key key = AESEncryptor.Key; IV =

How use AES/ECB/PKCS7Padding algorithm in Windows Phone 7?

由 ☆樱花仙子☆ 提交于 2019-12-01 10:36:55
I am new in windows phone development. How can I use AES/ECB/PKCS7Padding algorithm in WP7 ?. While googled I saw many suggested about Bouncy Castle. But I did not clearly understood about this Bouncy Castle. Is this an algorithm ?. I need to encrypt/decrypt password for sending to server. In all other phone (Android, iPhone, Blackberry), we use AES/ECB/PKCS7Padding algorithm for this. They all give same ecrypted/decrypt result for our input. But in windows phone I used AesManaged Class for the encryption. But it gives different encrypted result. In the msdn documentation ( MSDN documentation

How use AES/ECB/PKCS7Padding algorithm in Windows Phone 7?

由 五迷三道 提交于 2019-12-01 08:07:42
问题 I am new in windows phone development. How can I use AES/ECB/PKCS7Padding algorithm in WP7 ?. While googled I saw many suggested about Bouncy Castle. But I did not clearly understood about this Bouncy Castle. Is this an algorithm ?. I need to encrypt/decrypt password for sending to server. In all other phone (Android, iPhone, Blackberry), we use AES/ECB/PKCS7Padding algorithm for this. They all give same ecrypted/decrypt result for our input. But in windows phone I used AesManaged Class for
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