comodo digital certificate

Turn from: HTTPS Unidirectional authentication Instructions _ digital certificate, digital signature, SSL (TLS), SASLBecause TLS + SASL is used in the project to do the security authentication layer. So read some online information, here to do a summary.1. First recommend several articles:Digital certificate: http://ww

Android security encryption feature article index Android Secure encryption: Symmetric encryption Android Secure encryption: Asymmetric encryption Android Secure encryption: Message digest Digest Android Security Encryption: Digital signatures and digital certificates Android Secure encryption: HTTPS programming The above learning all content, symmetric en

OrderThe previous article introduced several concepts related to CA certificates, which are important to understand the digital certificate and how it works. This article is mainly to analyze the CA certificate, to tell the basic composition of the certificate, which is necessary to generate a correct, accessible certi

Preface First look at Baidu Encyclopedia of Digital Signatures and digital certificate interpretation: Digital Signature: A fixed-digit message digest is computed by the hash algorithm agreed by both parties. Mathematically guaranteed: As long as any one of the changes in the message, the recalculated report digest to

Encryption and decryption use the same key algorithm, called symmetric encryption algorithm. encryption and decryption use different keys, called asymmetric encryption algorithms. The public key system is an asymmetric encryption algorithm. For symmetric encryption, symmetric keys must be protected. For public key algorithms, private keys must be protected.Public key encryption algorithms and derived digital signatures and

the contents of the file have not been modified. Multiple signatures For n holders, a signature of at least m (n≥m≥1 n\ge{}m\ge{}1) is considered lawful and is called a multi-signature. where n is the number of public keys provided, and M is the minimum number of signatures that need to match the public key. Group Signature Ring Signature The ring signature was first presented by Rivest,shamir and Tauman three-bit cryptology in 2001. Ring signatures belong to a simplified group signature. The

1. We have our own cancellation in the digital certificate expiration interface, 2. As shown in the following figure, we click on "Digital certificate"-"management" click to enter, as shown in the following figure. 3. Then find the "Cancel digital

csdecrypt = new CryptoStream (Msdecrypt,New TripleDESCryptoServiceProvider (). CreateDecryptor (Keyarray, Ivarray),CryptoStreamMode.Read);Based on the length of the ciphertext byte[] (may be longer than the plaintext before encryption), create a new byte[that holds the plaintext after decryption]byte[] Decryptdataarray = new Byte[longdatabytesencrypted.length];Read the decrypted data into the Decryptdataarray.Csdecrypt.read (Decryptdataarray, 0, decryptdataarray.length);Msdecrypt.close ();Csdec

the letter, Susan took off her digital signature and decrypted it with Bob's public key to get a summary of the letter. It turns out that the letter was actually from Bob. 9. Susan then uses the hash function on the letter itself, comparing the resulting result with the summary obtained from the previous step. If the two are consistent, the letter has not been modified. 10. A complex situation arose. Doug tried to cheat Susan by secretly using Susa

OrderThe previous article talked about Java generating digital certificates, using third-party component BC. This article also introduces the generation of digital certificates, but unlike the previous one, this article uses the KeyStore storage method, the exported certificate file format is PFX, this format of the certifica