Cisco ASA L2TP over IPSEC configuration details
1. Create a VPN address pool
Ciscoasa (config) # ip local pool vpnpool 192.168.151.11-192.168.151.15 mask 255.255.255.0
2. Configure the Ipsec encryption algorithms 3DES and SHA.
Ciscoasa (config) # crypto ipsec transform-set TRANS_ESP_3DES_SHA esp-3des (esp-sha-hmac)
3. Set the IPSec transmission mode to transport. The default mode is tunnel (L2TP only supports transport)
Ciscoasaconfig) #
TripleDESCryptoServiceProvider ();Tdsp. Mode = CipherMode. CBC; // Default ValueTdsp. Padding = PaddingMode. PKCS7; // Default Value// Create a CryptoStream using the MemoryStream// And the passed key and initialization vector (IV ).CryptoStream cStream = new CryptoStream (mStream,Tdsp. CreateEncryptor (key, iv ),CryptoStreamMode. Write );// Write the byte array to the crypto stream and flush it.CStream. Write (data, 0, data. Length );CStream. FlushF
Description:In windows, encryption and decryption are normal, while in linux, the following exception occurs: javax. crypto. badPaddingException: Given final block not properly padded at com. sun. crypto. provider. sunJCE_f. B (DashoA13 *..) at com. sun. crypto. provider. sunJCE_f. B (DashoA13 *..) at com. sun. crypto.
consistent with the background)
Paste the Code directly:
For IOS, You need to introduce GTMBase64.h, GTMBase64.m, and GTMDefines. h. I found this on github and I will search for it myself, as well as
# Import "ViewController. h "# import Java code: Introduce sun. misc. BASE64Decoder. jar by yourself.
Package com. yue; import java. io. IOException; import java. security. secureRandom; import javax. crypto. cipher; import javax.
This article briefly introduces the core applications of the JCE framework!
Javax. crypto. CipherThis type provides the password function for encryption and decryption. It forms the core of the Java cryptographic extension (JCE) framework. To create a cipher object, the application callsgetInstanceMethod andConversionTo It. You can also specify the provider name (optional ).
ConversionIs a string that describes the operations (or a group of Operations
Step 1 of Cisco ASA firewall VPN configuration: Create an address pool. To remotely access the client, you need to assign an IP address during logon. Therefore, we also need to create a DHCP address pool for these clients. However, if you have a DHCP server, you can also use a DHCP server. QUANMA-T (config) # ip local pool vpnpool 192.168.10.100-192.168.10.199 mask 255.255.255.0 Step 2: Create IKE Phase 1. Www.2cto.com QUANMA-T (config) # isakmp policy 1 QUANMA-T (config-isakmp-policy) # authent
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Create a dingtalk encryption/Decryption tool in Python and decrypt it in python.
I haven't written a technical blog for a long time. Because I have been learning knowledge recently and have not summed up anything worth sharing, I have been suspended. Recent work and dingtalk development have been handed over. The official website does not provide any Python SDK, so you can only write it on your own. Now I want to share the "encryption, decryption, and signature" section, which is relatively time
machine.DynamicDomain Name interpretation client program to register the host name nbo.3322.org to the server, registerAddressIs the Internet port of the routerAddress.Configuration:VPN-1 (Omitted partially irrelevantConfiguration):Version 12.3:!Hostname vpn-1!Aaa new-model!Aaa authentication login authen group radius localAaa authorization network author localAaa session-id commonIp subnet-zero!Ip cefIp name-server 202.96.134.20.!Crypto isakmp polic
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Package com. aisino. qysds. common. util; import java. io. unsupportedEncodingException; import java. security. invalidKeyException; import java. security. noSuchAlgorithmException; import java. security. secureRandom; import java. util. random; import javax. cry
{Code ...} I wrote a Python version using pyopenssl, as follows: {code ...} the problem mainly lies in x509data. How can I get the data in x509data? In Python, this is an object.
function getCertId($cert_path) { $pkcs12certdata = file_get_contents ( $cert_path ); openssl_pkcs12_read ( $pkcs12certdata, $certs, SDK_SIGN_CERT_PWD ); $x509data = $certs ['cert']; openssl_x509_read ( $x509data ); $certdata = openssl_x509_parse ( $x509data ); $cert_id = $certdata ['serialNumber'];
Update
6.7.4. Monitoring Authentication Status
6.7.4.1. Crypto Association Flags
6.7.5. Related Links
6.7.1. How to use the This guide
Perform the server set-up before performing the client set-up
Follow each step in the This guide
This guide currently only addresses the IFF identity scheme.6.7.2. Server Set-upThis section, pertains only to systems, is the NTP servers for an NTP Trust Grou
useNo_return ()Return Value Type:
-spec my_error(term()) -> no_return().my_error(Err) -> erlang:throw({error, Err}).Static analysis using dialyzer
We have defined the type and spec, and we can useDialyzer performs static analysis on the Code and finds many low-level or hidden errors before running the code.Generate PLT
To analyze our app or module, we can generate a PLT file (persistent lookup table) to accelerate the code analysis process. Many types and function information in Plt are involve
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